From 50c6e0e5e456423b2dc4911bf260c2e665a13483 Mon Sep 17 00:00:00 2001
From: Aleksandr Kovalko <gistrec@gmail.com>
Date: Wed, 7 Oct 2026 06:54:59 +0200
Subject: [PATCH 1/3] feat(demo): interactive WebAssembly demo on a Leaflet map

demo/: embind wrapper over geo-utils-cpp, seven interactive panels (distance &
bearing, offset, geofence, polyline encode/decode p5/p6, simplify, snap-to-route,
area), a native reference + Node cross-check, and a Pages workflow.
Not built or verified against WASM yet (needs Emscripten).
---
 .github/workflows/demo.yml |  61 +++++++
 .gitignore                 |   4 +
 demo/CMakeLists.txt        |  29 +++
 demo/README.md             |  50 ++++++
 demo/bindings.cpp          |  60 +++++++
 demo/build.sh              |  14 ++
 demo/demo_api.hpp          | 124 +++++++++++++
 demo/test/native_ref.cpp   |  54 ++++++
 demo/test/verify.mjs       |  52 ++++++
 demo/web/index.html        | 360 +++++++++++++++++++++++++++++++++++++
 10 files changed, 808 insertions(+)
 create mode 100644 .github/workflows/demo.yml
 create mode 100644 demo/CMakeLists.txt
 create mode 100644 demo/README.md
 create mode 100644 demo/bindings.cpp
 create mode 100755 demo/build.sh
 create mode 100644 demo/demo_api.hpp
 create mode 100644 demo/test/native_ref.cpp
 create mode 100644 demo/test/verify.mjs
 create mode 100644 demo/web/index.html

diff --git a/.github/workflows/demo.yml b/.github/workflows/demo.yml
new file mode 100644
index 0000000..19bd56f
--- /dev/null
+++ b/.github/workflows/demo.yml
@@ -0,0 +1,61 @@
+name: Demo (GitHub Pages)
+
+on:
+  push:
+    branches: [master]
+    paths: ['demo/**', 'include/**', '.github/workflows/demo.yml']
+  pull_request:
+    paths: ['demo/**', 'include/**', '.github/workflows/demo.yml']
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+concurrency:
+  group: pages
+  cancel-in-progress: false
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v7
+      - uses: mymindstorm/setup-emsdk@v16
+        with:
+          version: 6.0.11
+      - uses: actions/setup-node@v7
+        with:
+          node-version: 22
+
+      - name: Build native reference
+        run: |
+          c++ -std=c++17 -Wall -Wextra -pedantic -Iinclude demo/test/native_ref.cpp -o native_ref
+          ./native_ref > expected.json
+
+      - name: Build WebAssembly
+        run: demo/build.sh
+
+      - name: Cross-check WASM against native
+        run: node demo/test/verify.mjs expected.json
+
+      - name: Report size
+        run: ls -l demo/web/geo.wasm demo/web/geo.js
+
+      - uses: actions/upload-pages-artifact@v5
+        if: github.event_name != 'pull_request'
+        with:
+          path: demo/web
+
+  deploy:
+    if: github.event_name != 'pull_request'
+    needs: build
+    runs-on: ubuntu-latest
+    permissions:
+      pages: write
+      id-token: write
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    steps:
+      - id: deployment
+        uses: actions/deploy-pages@v5
diff --git a/.gitignore b/.gitignore
index 885fb4a..dd8f850 100644
--- a/.gitignore
+++ b/.gitignore
@@ -50,3 +50,7 @@ Thumbs.db
 
 # Tool sessions
 .claude/
+
+# WebAssembly demo build output (see demo/README.md)
+demo/web/geo.js
+demo/web/geo.wasm
diff --git a/demo/CMakeLists.txt b/demo/CMakeLists.txt
new file mode 100644
index 0000000..a1fd4c2
--- /dev/null
+++ b/demo/CMakeLists.txt
@@ -0,0 +1,29 @@
+cmake_minimum_required(VERSION 3.16)
+project(geo_utils_cpp_demo LANGUAGES CXX)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_EXTENSIONS OFF)
+
+set(GEO_INCLUDE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../include")
+
+if(EMSCRIPTEN)
+  # WebAssembly module: web/geo.js + web/geo.wasm
+  add_executable(geo bindings.cpp)
+  target_include_directories(geo PRIVATE "${GEO_INCLUDE_DIR}")
+  target_compile_options(geo PRIVATE -O3 -Wall -Wextra)
+  target_link_options(geo PRIVATE
+    --bind -O3
+    -sMODULARIZE=1 -sEXPORT_ES6=1 -sEXPORT_NAME=createGeo
+    -sALLOW_MEMORY_GROWTH=1
+    -sENVIRONMENT=web,node
+    -sASSERTIONS=0)
+  set_target_properties(geo PROPERTIES
+    RUNTIME_OUTPUT_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/web"
+    SUFFIX ".js")
+else()
+  # Native reference used to cross-check the WebAssembly build (test/verify.mjs).
+  add_executable(native_ref test/native_ref.cpp)
+  target_include_directories(native_ref PRIVATE "${GEO_INCLUDE_DIR}")
+  target_compile_options(native_ref PRIVATE -Wall -Wextra -pedantic)
+endif()
diff --git a/demo/README.md b/demo/README.md
new file mode 100644
index 0000000..9c739dd
--- /dev/null
+++ b/demo/README.md
@@ -0,0 +1,50 @@
+# geo-utils-cpp — WebAssembly demo
+
+An interactive map page where every number is computed by the C++ library compiled to
+WebAssembly: distance & bearing, offset, geofence (point-in-polygon), polyline
+encode/decode (precision 5 and 6), Douglas–Peucker simplify, snap-to-route, and spherical area.
+Client-side only: no backend, no API keys, no trackers. Map tiles come from OpenStreetMap
+and Leaflet from unpkg.
+
+## Layout
+
+| File | Purpose |
+|---|---|
+| `demo_api.hpp` | Thin C++17 layer over `<geo/geo.hpp>`; paths are flat `[lat, lng, ...]` arrays. No Emscripten dependency. |
+| `bindings.cpp` | embind wrapper — one forwarding function per `demo_api.hpp` function. |
+| `test/native_ref.cpp` | Native build of the same layer; prints reference values as JSON. |
+| `test/verify.mjs` | Loads the WASM module in Node and compares it to the native reference. |
+| `web/index.html` | The page (vanilla JS + Leaflet). |
+
+## Build
+
+Needs the [Emscripten SDK](https://emscripten.org/docs/getting_started/downloads.html)
+(`emcmake` on `PATH`, e.g. after `source ./emsdk_env.sh`) and CMake ≥ 3.16.
+
+```sh
+demo/build.sh          # -> demo/web/geo.js + demo/web/geo.wasm
+ls -l demo/web/geo.wasm
+```
+
+Build flags: `-O3 --bind -sMODULARIZE -sEXPORT_ES6 -sALLOW_MEMORY_GROWTH`.
+
+## Run locally
+
+```sh
+cd demo/web && python3 -m http.server 8000   # open http://localhost:8000
+```
+
+Browsers refuse to load a `.wasm` module from `file://`, so opening `index.html` directly shows
+an explanatory message instead of the demo. Any static server works.
+
+## Verify the WASM build against native
+
+```sh
+c++ -std=c++17 -Iinclude demo/test/native_ref.cpp -o native_ref && ./native_ref > expected.json
+node demo/test/verify.mjs expected.json
+```
+
+## Publish on GitHub Pages
+
+`.github/workflows/demo.yml` builds, verifies and deploys `demo/web` on pushes to `master`.
+One-time setup: **Settings → Pages → Build and deployment → Source: GitHub Actions**.
diff --git a/demo/bindings.cpp b/demo/bindings.cpp
new file mode 100644
index 0000000..52a1efe
--- /dev/null
+++ b/demo/bindings.cpp
@@ -0,0 +1,60 @@
+// Emscripten/embind wrapper. Arrays cross the boundary as plain JS arrays of numbers
+// (flat [lat, lng, lat, lng, ...]); every function is a thin forward to demo_api.hpp.
+#include "demo_api.hpp"
+
+#include <emscripten/bind.h>
+#include <emscripten/val.h>
+
+#include <string>
+#include <vector>
+
+namespace {
+
+using emscripten::val;
+
+demo::Flat in(const val& array) {
+    return emscripten::convertJSArrayToNumberVector<double>(array);
+}
+
+val out(const demo::Flat& flat) {
+    val array = val::array();
+    for (std::size_t i = 0; i < flat.size(); ++i) {
+        array.set(i, flat[i]);
+    }
+    return array;
+}
+
+}  // namespace
+
+EMSCRIPTEN_BINDINGS(geo_demo) {
+    using namespace emscripten;
+
+    function("version", &demo::version);
+    function("distanceBetween", &demo::distance_between);
+    function("heading", &demo::heading);
+    function("offset", +[](double lat, double lng, double d, double h) { return out(demo::offset(lat, lng, d, h)); });
+    function("interpolate", +[](double a, double b, double c, double d, double f) {
+        return out(demo::interpolate(a, b, c, d, f));
+    });
+    function("pathLength", +[](const val& path) { return demo::path_length(in(path)); });
+    function("pointAtDistance", +[](const val& path, double d) { return out(demo::point_at_distance(in(path), d)); });
+    function("area", +[](const val& path) { return demo::area(in(path)); });
+    function("contains", +[](double lat, double lng, const val& poly, bool geodesic) {
+        return demo::contains(lat, lng, in(poly), geodesic);
+    });
+    function("onEdge", +[](double lat, double lng, const val& poly, bool geodesic, double tol) {
+        return demo::on_edge(lat, lng, in(poly), geodesic, tol);
+    });
+    function("distanceToEdge", +[](double lat, double lng, const val& poly) {
+        return demo::distance_to_edge(lat, lng, in(poly));
+    });
+    function("encode", +[](const val& path, unsigned precision) { return demo::encode(in(path), precision); });
+    function("decode", +[](const std::string& s, unsigned precision) { return out(demo::decode(s, precision)); });
+    function("simplify", +[](const val& path, double tol, bool geodesic) {
+        return out(demo::simplify(in(path), tol, geodesic));
+    });
+    function("closestPointOnPath", +[](double lat, double lng, const val& path) {
+        return out(demo::closest_point_on_path(lat, lng, in(path)));
+    });
+    function("bounds", +[](const val& path) { return out(demo::bounds(in(path))); });
+}
diff --git a/demo/build.sh b/demo/build.sh
new file mode 100755
index 0000000..b685b6e
--- /dev/null
+++ b/demo/build.sh
@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+# Builds web/geo.js + web/geo.wasm. Requires the Emscripten SDK (emcmake on PATH).
+set -euo pipefail
+cd "$(dirname "$0")"
+
+if ! command -v emcmake >/dev/null 2>&1; then
+  echo "emcmake not found. Install and activate the Emscripten SDK first:" >&2
+  echo "  https://emscripten.org/docs/getting_started/downloads.html  (source ./emsdk_env.sh)" >&2
+  exit 1
+fi
+
+emcmake cmake -S . -B build-wasm -DCMAKE_BUILD_TYPE=Release
+cmake --build build-wasm --parallel
+ls -l web/geo.js web/geo.wasm
diff --git a/demo/demo_api.hpp b/demo/demo_api.hpp
new file mode 100644
index 0000000..4c85ac1
--- /dev/null
+++ b/demo/demo_api.hpp
@@ -0,0 +1,124 @@
+// Thin, JS-friendly layer over geo-utils-cpp. Paths are flat arrays
+// [lat0, lng0, lat1, lng1, ...]. Pure C++17 with no Emscripten dependency, so the
+// exact same code is compiled natively (test/native_ref.cpp) to cross-check the
+// WebAssembly build.
+#pragma once
+
+#include <geo/geo.hpp>
+
+#include <cstddef>
+#include <optional>
+#include <string>
+#include <vector>
+
+namespace demo {
+
+using Flat = std::vector<double>;
+
+inline std::vector<geo::LatLng> to_path(const Flat& flat) {
+    std::vector<geo::LatLng> path;
+    path.reserve(flat.size() / 2);
+    for (std::size_t i = 0; i + 1 < flat.size(); i += 2) {
+        path.emplace_back(flat[i], flat[i + 1]);
+    }
+    return path;
+}
+
+inline Flat to_flat(const std::vector<geo::LatLng>& path) {
+    Flat flat;
+    flat.reserve(path.size() * 2);
+    for (const auto& p : path) {
+        flat.push_back(p.lat);
+        flat.push_back(p.lng);
+    }
+    return flat;
+}
+
+inline std::string version() { return GEO_UTILS_CPP_VERSION_STRING; }
+
+inline double distance_between(double lat1, double lng1, double lat2, double lng2) {
+    return geo::distance_between({lat1, lng1}, {lat2, lng2});
+}
+
+inline double heading(double lat1, double lng1, double lat2, double lng2) {
+    return geo::heading({lat1, lng1}, {lat2, lng2});
+}
+
+inline Flat offset(double lat, double lng, double distance, double heading_deg) {
+    const geo::LatLng p = geo::offset({lat, lng}, distance, heading_deg);
+    return {p.lat, p.lng};
+}
+
+inline Flat interpolate(double lat1, double lng1, double lat2, double lng2, double fraction) {
+    const geo::LatLng p = geo::interpolate({lat1, lng1}, {lat2, lng2}, fraction);
+    return {p.lat, p.lng};
+}
+
+inline double path_length(const Flat& flat) { return geo::path_length(to_path(flat)); }
+
+// Empty result for an empty path.
+inline Flat point_at_distance(const Flat& flat, double distance) {
+    const auto p = geo::point_at_distance(to_path(flat), distance);
+    return p ? Flat{p->lat, p->lng} : Flat{};
+}
+
+inline double area(const Flat& flat) { return geo::area(to_path(flat)); }
+
+inline bool contains(double lat, double lng, const Flat& polygon, bool geodesic) {
+    return geo::contains({lat, lng}, to_path(polygon), geodesic);
+}
+
+inline bool on_edge(double lat, double lng, const Flat& polygon, bool geodesic, double tolerance) {
+    return geo::on_edge({lat, lng}, to_path(polygon), geodesic, tolerance);
+}
+
+// Distance in meters from the point to the closest polygon edge (the polygon is
+// closed implicitly). -1 for an empty polygon.
+inline double distance_to_edge(double lat, double lng, const Flat& polygon) {
+    auto path = to_path(polygon);
+    if (path.empty()) {
+        return -1.0;
+    }
+    if (path.size() > 1) {
+        path.push_back(path.front());
+    }
+    const auto projection = geo::closest_point_on_path({lat, lng}, path);
+    return projection ? projection->distance : -1.0;
+}
+
+inline std::string encode(const Flat& flat, unsigned precision) {
+    return geo::encode(to_path(flat), precision);
+}
+
+inline Flat decode(const std::string& encoded, unsigned precision) {
+    return to_flat(geo::decode(encoded, precision));
+}
+
+inline Flat simplify(const Flat& flat, double tolerance, bool geodesic) {
+    return to_flat(geo::simplify(to_path(flat), tolerance, geodesic));
+}
+
+// [lat, lng, segment, distance_to_path_m, distance_along_path_m]; empty for an empty path.
+inline Flat closest_point_on_path(double lat, double lng, const Flat& flat) {
+    const auto path = to_path(flat);
+    const auto projection = geo::closest_point_on_path({lat, lng}, path);
+    if (!projection) {
+        return {};
+    }
+    const std::vector<geo::LatLng> head(path.begin(), path.begin() + static_cast<std::ptrdiff_t>(projection->segment) + 1);
+    const double along = geo::path_length(head) + geo::distance_between(path[projection->segment], projection->point);
+    return {projection->point.lat, projection->point.lng, static_cast<double>(projection->segment),
+            projection->distance, along};
+}
+
+// [south, west, north, east]; empty for an empty path. Antimeridian-aware: west > east
+// means the box crosses the 180th meridian.
+inline Flat bounds(const Flat& flat) {
+    const auto b = geo::bounds(to_path(flat));
+    if (!b) {
+        return {};
+    }
+    return {b->southwest.lat, b->southwest.lng, b->northeast.lat, b->northeast.lng};
+}
+
+}  // namespace demo
diff --git a/demo/test/native_ref.cpp b/demo/test/native_ref.cpp
new file mode 100644
index 0000000..556ba74
--- /dev/null
+++ b/demo/test/native_ref.cpp
@@ -0,0 +1,54 @@
+// Native reference: runs a fixed set of inputs through the same demo_api.hpp that the
+// WASM build wraps, and prints them as JSON. test/verify.mjs feeds the identical inputs to
+// the WebAssembly module and compares.
+#include "../demo_api.hpp"
+
+#include <cstdio>
+#include <string>
+
+namespace {
+
+const demo::Flat kRoute = {37.7749, -122.4194, 37.8044, -122.2712, 37.8716, -122.2727, 38.5816, -121.4944};
+const demo::Flat kPolygon = {37.80, -122.45, 37.80, -122.40, 37.76, -122.40, 37.76, -122.45};
+const demo::Flat kAnti = {-17.0, 179.5, -17.5, -179.5, -18.0, 179.8};
+const std::string kPoly5 = "_p~iF~ps|U_ulLnnqC_mqNvxq`@";  // Google's documentation example
+
+void print_array(const char* key, const demo::Flat& v, bool comma = true) {
+    std::printf("  \"%s\": [", key);
+    for (std::size_t i = 0; i < v.size(); ++i) {
+        std::printf("%s%.17g", i ? ", " : "", v[i]);
+    }
+    std::printf("]%s\n", comma ? "," : "");
+}
+
+void print_number(const char* key, double v, bool comma = true) {
+    std::printf("  \"%s\": %.17g%s\n", key, v, comma ? "," : "");
+}
+
+}  // namespace
+
+int main() {
+    std::printf("{\n");
+    std::printf("  \"version\": \"%s\",\n", demo::version().c_str());
+    print_number("distance_sf_ny", demo::distance_between(37.7749, -122.4194, 40.7128, -74.0060));
+    print_number("heading_sf_ny", demo::heading(37.7749, -122.4194, 40.7128, -74.0060));
+    print_array("offset", demo::offset(37.7749, -122.4194, 10000.0, 45.0));
+    print_array("interpolate", demo::interpolate(37.7749, -122.4194, 40.7128, -74.0060, 0.25));
+    print_number("path_length", demo::path_length(kRoute));
+    print_array("point_at_distance", demo::point_at_distance(kRoute, 20000.0));
+    print_number("area_polygon", demo::area(kPolygon));
+    print_number("contains_inside", demo::contains(37.78, -122.42, kPolygon, false));
+    print_number("contains_outside", demo::contains(37.90, -122.42, kPolygon, false));
+    print_number("distance_to_edge", demo::distance_to_edge(37.78, -122.42, kPolygon));
+    std::printf("  \"encode5\": \"%s\",\n", demo::encode(kRoute, 5).c_str());
+    std::printf("  \"encode6\": \"%s\",\n", demo::encode(kRoute, 6).c_str());
+    print_array("decode5", demo::decode(kPoly5, 5));
+    print_array("decode6_roundtrip", demo::decode(demo::encode(kRoute, 6), 6));
+    print_array("simplify_100m", demo::simplify(kRoute, 100.0, false));
+    print_array("closest", demo::closest_point_on_path(37.83, -122.30, kRoute));
+    print_array("bounds_anti", demo::bounds(kAnti));
+    print_number("path_length_anti", demo::path_length(kAnti));
+    print_number("area_anti", demo::area(kAnti), false);
+    std::printf("}\n");
+    return 0;
+}
diff --git a/demo/test/verify.mjs b/demo/test/verify.mjs
new file mode 100644
index 0000000..44eebb4
--- /dev/null
+++ b/demo/test/verify.mjs
@@ -0,0 +1,52 @@
+// Cross-checks the WebAssembly build against the native reference.
+//   1. c++ -std=c++17 -I../include test/native_ref.cpp -o native_ref && ./native_ref > expected.json
+//   2. node test/verify.mjs expected.json
+// Same inputs as native_ref.cpp; exits non-zero on any mismatch.
+import { readFileSync } from 'node:fs';
+import { fileURLToPath, pathToFileURL } from 'node:url';
+import path from 'node:path';
+
+const here = path.dirname(fileURLToPath(import.meta.url));
+const expected = JSON.parse(readFileSync(process.argv[2], 'utf8'));
+const { default: createGeo } = await import(pathToFileURL(path.join(here, '../web/geo.js')).href);
+const g = await createGeo();
+
+const route = [37.7749, -122.4194, 37.8044, -122.2712, 37.8716, -122.2727, 38.5816, -121.4944];
+const polygon = [37.80, -122.45, 37.80, -122.40, 37.76, -122.40, 37.76, -122.45];
+const anti = [-17.0, 179.5, -17.5, -179.5, -18.0, 179.8];
+
+const actual = {
+  version: g.version(),
+  distance_sf_ny: g.distanceBetween(37.7749, -122.4194, 40.7128, -74.0060),
+  heading_sf_ny: g.heading(37.7749, -122.4194, 40.7128, -74.0060),
+  offset: g.offset(37.7749, -122.4194, 10000, 45),
+  interpolate: g.interpolate(37.7749, -122.4194, 40.7128, -74.0060, 0.25),
+  path_length: g.pathLength(route),
+  point_at_distance: g.pointAtDistance(route, 20000),
+  area_polygon: g.area(polygon),
+  contains_inside: +g.contains(37.78, -122.42, polygon, false),
+  contains_outside: +g.contains(37.90, -122.42, polygon, false),
+  distance_to_edge: g.distanceToEdge(37.78, -122.42, polygon),
+  encode5: g.encode(route, 5),
+  encode6: g.encode(route, 6),
+  decode5: g.decode('_p~iF~ps|U_ulLnnqC_mqNvxq`@', 5),
+  decode6_roundtrip: g.decode(g.encode(route, 6), 6),
+  simplify_100m: g.simplify(route, 100, false),
+  closest: g.closestPointOnPath(37.83, -122.30, route),
+  bounds_anti: g.bounds(anti),
+  path_length_anti: g.pathLength(anti),
+  area_anti: g.area(anti),
+};
+
+let bad = 0;
+for (const [key, want] of Object.entries(expected)) {
+  const got = actual[key];
+  const a = Array.isArray(want) ? want : [want];
+  const b = Array.isArray(got) ? got : [got];
+  const diff = typeof want === 'string' ? (want === got ? 0 : Infinity)
+    : Math.max(a.length === b.length ? 0 : Infinity, ...a.map((x, i) => Math.abs(x - b[i])));
+  const ok = diff <= 1e-9 * Math.max(1, ...a.map(Math.abs));
+  if (!ok) bad++;
+  console.log(`${ok ? 'OK  ' : 'FAIL'} ${key.padEnd(20)} max|Δ| = ${diff}`);
+}
+process.exit(bad ? 1 : 0);
diff --git a/demo/web/index.html b/demo/web/index.html
new file mode 100644
index 0000000..69d9bed
--- /dev/null
+++ b/demo/web/index.html
@@ -0,0 +1,360 @@
+<!doctype html>
+<html lang="en">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>geo-utils-cpp — live demo</title>
+<meta name="description" content="Interactive demo of geo-utils-cpp, a header-only C++17 geodesy library, compiled to WebAssembly. Every number on this page is computed by the C++ code in your browser.">
+<link rel="stylesheet" href="https://unpkg.com/leaflet@1.9.4/dist/leaflet.css" integrity="sha256-p4NxAoJBhIIN+hmNHrzRCf9tD/miZyoHS5obTRR9BMY=" crossorigin="">
+<style>
+  :root { --bg:#fafafa; --fg:#1b1f23; --muted:#5b6570; --card:#fff; --line:#d8dee4; --accent:#0b6bcb; --ok:#1a7f37; --bad:#cf222e; --code:#f3f5f7; }
+  @media (prefers-color-scheme: dark) {
+    :root { --bg:#12161a; --fg:#e6e9ec; --muted:#97a3ae; --card:#1a2025; --line:#2c353d; --accent:#58a6ff; --ok:#3fb950; --bad:#ff7b72; --code:#0f1317; }
+  }
+  * { box-sizing: border-box; }
+  body { margin:0; background:var(--bg); color:var(--fg); font:14px/1.45 system-ui, -apple-system, "Segoe UI", sans-serif; }
+  header { padding:14px 16px 8px; display:flex; flex-wrap:wrap; gap:6px 14px; align-items:baseline; }
+  header h1 { margin:0; font-size:18px; }
+  header p { margin:0; color:var(--muted); flex:1 1 320px; }
+  header a { color:var(--accent); }
+  nav { display:flex; gap:4px; padding:0 12px; overflow-x:auto; border-bottom:1px solid var(--line); }
+  nav button { flex:none; border:0; background:none; color:var(--muted); padding:9px 11px; cursor:pointer; font:inherit; border-bottom:2px solid transparent; }
+  nav button[aria-selected=true] { color:var(--fg); border-color:var(--accent); font-weight:600; }
+  main { display:grid; grid-template-columns:minmax(0,1fr) 380px; gap:12px; padding:12px; }
+  #map { height:calc(100vh - 150px); min-height:380px; border:1px solid var(--line); border-radius:8px; }
+  aside { background:var(--card); border:1px solid var(--line); border-radius:8px; padding:12px 14px; overflow:auto; max-height:calc(100vh - 150px); }
+  aside h2 { margin:0 0 4px; font-size:15px; }
+  .desc { color:var(--muted); margin:0 0 10px; }
+  label { display:block; margin:8px 0 2px; color:var(--muted); font-size:12px; }
+  input[type=range] { width:100%; }
+  textarea, select, input[type=text] { width:100%; font:12px ui-monospace, Menlo, monospace; padding:6px; border:1px solid var(--line); border-radius:6px; background:var(--bg); color:var(--fg); }
+  textarea { min-height:64px; resize:vertical; }
+  .row { display:flex; gap:6px; flex-wrap:wrap; margin:8px 0; }
+  button.b { border:1px solid var(--line); background:var(--bg); color:var(--fg); border-radius:6px; padding:5px 10px; cursor:pointer; font:inherit; }
+  button.b:hover { border-color:var(--accent); }
+  button.primary { background:var(--accent); color:#fff; border-color:var(--accent); }
+  .out { background:var(--code); border-radius:6px; padding:8px 10px; margin:10px 0; font:12.5px ui-monospace, Menlo, monospace; white-space:pre-wrap; word-break:break-word; }
+  .inside { color:var(--ok); font-weight:600; } .outside { color:var(--bad); font-weight:600; }
+  .err { color:var(--bad); }
+  .fn { margin:12px 0 4px; font-size:12px; color:var(--muted); }
+  pre.code { background:var(--code); border-radius:6px; padding:8px 10px; margin:0; overflow-x:auto; font:12px/1.4 ui-monospace, Menlo, monospace; }
+  #loading { position:fixed; inset:0; display:flex; flex-direction:column; align-items:center; justify-content:center; gap:12px; background:var(--bg); z-index:2000; }
+  .spin { width:34px; height:34px; border:4px solid var(--line); border-top-color:var(--accent); border-radius:50%; animation:s 0.8s linear infinite; }
+  @keyframes s { to { transform:rotate(360deg); } }
+  footer { padding:4px 16px 18px; color:var(--muted); font-size:12px; }
+  @media (max-width: 820px) {
+    main { grid-template-columns:1fr; }
+    #map { height:52vh; }
+    aside { max-height:none; }
+  }
+</style>
+</head>
+<body>
+<div id="loading"><div class="spin"></div><div id="loading-msg">Loading WebAssembly…</div></div>
+
+<header>
+  <h1>geo-utils-cpp</h1>
+  <p>Header-only C++17 geodesy, compiled to WebAssembly. Every number below is computed by the C++ library in your browser — no server, no tracking. <a href="https://github.com/gistrec/geo-utils-cpp">GitHub</a> · <span id="ver"></span></p>
+</header>
+<nav id="tabs" role="tablist"></nav>
+<main>
+  <div id="map"></div>
+  <aside id="panel"></aside>
+</main>
+<footer>Map © <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors. Distances are on a sphere of radius 6 371 009 m, like Google Maps geometry.</footer>
+
+<script src="https://unpkg.com/leaflet@1.9.4/dist/leaflet.js" integrity="sha256-20nQCchB9co0qIjJZRGuk2/Z9VM+kNiyxNV1lvTlZBo=" crossorigin=""></script>
+<script type="module">
+const $ = (sel, root = document) => root.querySelector(sel);
+const fmtM = (m) => m >= 10000 ? (m / 1000).toFixed(2) + ' km' : m.toFixed(1) + ' m';
+const fmtA = (m2) => m2 >= 1e6 ? (m2 / 1e6).toFixed(3) + ' km²' : m2.toFixed(1) + ' m²';
+const flat = (pts) => pts.flatMap((p) => [p.lat, p.lng]);
+const unflat = (a) => { const r = []; for (let i = 0; i + 1 < a.length; i += 2) r.push(L.latLng(a[i], a[i + 1])); return r; };
+const esc = (s) => String(s).replace(/[&<>]/g, (c) => ({ '&': '&amp;', '<': '&lt;', '>': '&gt;' }[c]));
+
+let g;
+try {
+  const mod = await import('./geo.js');
+  g = await mod.default();
+} catch (e) {
+  console.error(e);
+  $('#loading-msg').innerHTML = 'Could not load <code>geo.wasm</code>.<br>Serve this folder over HTTP (<code>python3 -m http.server</code>) — browsers block WebAssembly modules on <code>file://</code>.';
+  $('.spin').remove();
+  throw e;
+}
+$('#ver').textContent = 'v' + g.version();
+$('#loading').remove();
+
+const map = L.map('map', { worldCopyJump: true }).setView([37.78, -122.42], 11);
+L.tileLayer('https://tile.openstreetmap.org/{z}/{x}/{y}.png', { maxZoom: 19, attribution: '© OpenStreetMap' }).addTo(map);
+let layer = L.layerGroup().addTo(map);
+
+// Great-circle polyline between two points, sampled with geo::interpolate.
+function arc(a, b, n = 64) {
+  const pts = [];
+  for (let i = 0; i <= n; i++) { const r = g.interpolate(a.lat, a.lng, b.lat, b.lng, i / n); pts.push(L.latLng(r[0], r[1])); }
+  return pts;
+}
+const dot = (p, color = '#0b6bcb', r = 6) => L.circleMarker(p, { radius: r, color, fillColor: color, fillOpacity: 0.9, weight: 2 });
+const wrapLL = (ll) => ll.wrap();
+
+const tabs = [];
+let current = null;
+
+// ---------------------------------------------------------------- 1. Distance & bearing
+tabs.push({
+  id: 'distance', title: 'Distance & bearing',
+  desc: 'Click two points. The line is a great circle, drawn by sampling geo::interpolate.',
+  fn: 'geo::distance_between · geo::heading · geo::interpolate',
+  code: `geo::LatLng a{37.77, -122.42}, b{51.51, -0.13};
+double m   = geo::distance_between(a, b);  // meters
+double deg = geo::heading(a, b);           // 0..360`,
+  state() { return { pts: [] }; },
+  example(s) { s.pts = [L.latLng(37.7749, -122.4194), L.latLng(51.5074, -0.1278)]; map.fitBounds(L.latLngBounds(s.pts).pad(0.3)); },
+  click(s, ll) { if (s.pts.length >= 2) s.pts = []; s.pts.push(wrapLL(ll)); },
+  render(s, out) {
+    s.pts.forEach((p) => dot(p).addTo(layer));
+    if (s.pts.length < 2) { out.textContent = 'Click the first point' + (s.pts.length ? ', then the second.' : '.'); return; }
+    const [a, b] = s.pts;
+    L.polyline(arc(a, b), { color: '#0b6bcb', weight: 3 }).addTo(layer);
+    out.textContent = `distance  ${fmtM(g.distanceBetween(a.lat, a.lng, b.lat, b.lng))}\nheading   ${g.heading(a.lat, a.lng, b.lat, b.lng).toFixed(2)}°\nreverse   ${g.heading(b.lat, b.lng, a.lat, a.lng).toFixed(2)}°`;
+  },
+});
+
+// ---------------------------------------------------------------- 2. Offset
+tabs.push({
+  id: 'offset', title: 'Offset',
+  desc: 'Click to set the origin, then use the sliders: where do you end up after travelling this far on this heading?',
+  fn: 'geo::offset',
+  code: `geo::LatLng from{37.77, -122.42};
+geo::LatLng to = geo::offset(from, 50'000.0 /*m*/, 45.0 /*deg*/);`,
+  state() { return { o: L.latLng(37.7749, -122.4194), d: 50, h: 45 }; },
+  example(s) { s.o = L.latLng(48.8566, 2.3522); s.d = 1500; s.h = 80; map.setView(s.o, 5); },
+  controls: (s, update) => `
+    <label>Distance: <b id="dv"></b></label><input id="d" type="range" min="0" max="12000" step="1" value="${s.d}">
+    <label>Heading: <b id="hv"></b></label><input id="h" type="range" min="0" max="360" step="1" value="${s.h}">`,
+  bind(s, root, update) {
+    for (const k of ['d', 'h']) $('#' + k, root).oninput = (e) => { s[k] = +e.target.value; update(); };
+  },
+  click(s, ll) { s.o = wrapLL(ll); },
+  render(s, out, root) {
+    $('#dv', root).textContent = s.d + ' km'; $('#hv', root).textContent = s.h + '°';
+    dot(s.o).addTo(layer);
+    const pts = [];
+    for (let i = 0; i <= 60; i++) { const r = g.offset(s.o.lat, s.o.lng, s.d * 1000 * i / 60, s.h); pts.push(L.latLng(r[0], r[1])); }
+    L.polyline(pts, { color: '#0b6bcb', weight: 3 }).addTo(layer);
+    const e = pts[pts.length - 1];
+    dot(e, '#cf222e').addTo(layer);
+    out.textContent = `destination  ${e.lat.toFixed(5)}, ${e.lng.toFixed(5)}\ncheck: distance_between = ${fmtM(g.distanceBetween(s.o.lat, s.o.lng, e.lat, e.lng))}`;
+  },
+});
+
+// ---------------------------------------------------------------- 3. Geofence
+tabs.push({
+  id: 'geofence', title: 'Geofence',
+  desc: 'Click to add polygon vertices. Drag the marker: inside/outside, plus the distance to the nearest edge.',
+  fn: 'geo::contains · geo::on_edge · geo::closest_point_on_path',
+  code: `std::vector<geo::LatLng> fence = {...};
+bool in   = geo::contains(p, fence);        // add 'true' for geodesic edges
+bool edge = geo::on_edge(p, fence);
+auto  hit = geo::closest_point_on_path(p, closed_fence);  // ->distance`,
+  state() { return { poly: [], p: L.latLng(37.78, -122.42), geodesic: false }; },
+  example(s) {
+    s.poly = [L.latLng(37.80, -122.45), L.latLng(37.80, -122.40), L.latLng(37.76, -122.40), L.latLng(37.76, -122.45)];
+    s.p = L.latLng(37.78, -122.42); map.setView([37.78, -122.425], 13);
+  },
+  controls: (s) => `<label><input id="geod" type="checkbox" ${s.geodesic ? 'checked' : ''}> geodesic edges</label><div class="row"><button class="b" id="reset">Reset polygon</button></div>`,
+  bind(s, root, update) {
+    $('#geod', root).onchange = (e) => { s.geodesic = e.target.checked; update(); };
+    $('#reset', root).onclick = () => { s.poly = []; update(); };
+  },
+  click(s, ll) { s.poly.push(wrapLL(ll)); },
+  render(s, out) {
+    if (s.poly.length >= 3) L.polygon(s.poly, { color: '#0b6bcb', weight: 2, fillOpacity: 0.12 }).addTo(layer);
+    else if (s.poly.length) L.polyline(s.poly, { color: '#0b6bcb' }).addTo(layer);
+    s.poly.forEach((v) => dot(v, '#0b6bcb', 4).addTo(layer));
+    const m = L.marker(s.p, { draggable: true }).addTo(layer);
+    m.on('drag', (e) => { s.p = e.target.getLatLng(); renderOutOnly(); });
+    const renderOutOnly = () => { out.innerHTML = describe(); };
+    const describe = () => {
+      if (s.poly.length < 3) return 'Add at least 3 vertices.';
+      const f = flat(s.poly), inside = g.contains(s.p.lat, s.p.lng, f, s.geodesic);
+      return `<span class="${inside ? 'inside' : 'outside'}">${inside ? 'INSIDE' : 'OUTSIDE'}</span>\non edge (≤ 0.1 m): ${g.onEdge(s.p.lat, s.p.lng, f, s.geodesic, 0.1)}\nto nearest edge: ${fmtM(g.distanceToEdge(s.p.lat, s.p.lng, f))}`;
+    };
+    renderOutOnly();
+  },
+});
+
+// ---------------------------------------------------------------- 4. Polyline
+const EX5 = '_p~iF~ps|U_ulLnnqC_mqNvxq`@';
+tabs.push({
+  id: 'polyline', title: 'Polyline',
+  desc: 'Decode a Google Encoded Polyline (precision 5 or 6), or click on the map to draw a path and get its encoded string.',
+  fn: 'geo::decode · geo::encode',
+  code: `std::vector<geo::LatLng> pts = geo::decode(encoded);        // precision 5
+std::string s6 = geo::encode(pts, 6);                         // polyline6`,
+  state() { return { path: [], dec: [], text: '', prec: 5 }; },
+  example(s) { s.text = EX5; s.prec = 5; this.runDecode(s); },
+  controls: (s) => `
+    <label>Encoded polyline</label><textarea id="enc" spellcheck="false">${esc(s.text)}</textarea>
+    <div class="row"><select id="prec" style="width:auto"><option value="5">precision 5</option><option value="6">precision 6</option></select>
+      <button class="b primary" id="dec">Decode &amp; draw</button>
+      <button class="b" id="ex5">Example (p5)</button><button class="b" id="ex6">Example (p6)</button></div>
+    <label>Drawn path → encoded (precision <span id="pp"></span>)</label><textarea id="encout" readonly></textarea>
+    <div class="row"><button class="b" id="copy">Copy</button><button class="b" id="clr">Clear drawn path</button></div>`,
+  runDecode(s) {
+    s.err = ''; s.dec = [];
+    const t = s.text.trim();
+    if (!t) { s.err = 'Paste an encoded polyline.'; return; }
+    if (!/^[\x3f-\x7e]+$/.test(t)) { s.err = 'Not a polyline: allowed characters are ? through ~ (ASCII 63–126).'; return; }
+    const pts = unflat(Array.from(g.decode(t, s.prec)));
+    if (!pts.length) { s.err = 'Decoded to zero points.'; return; }
+    if (pts.some((p) => Math.abs(p.lat) > 90 || Math.abs(p.lng) > 180)) { s.err = `Decoded coordinates are out of range — wrong precision? (tried ${s.prec})`; return; }
+    s.dec = pts; s.canonical = g.encode(flat(pts), s.prec) === t;
+    map.fitBounds(L.latLngBounds(pts).pad(0.2));
+  },
+  bind(s, root, update) {
+    $('#prec', root).value = String(s.prec);
+    $('#enc', root).oninput = (e) => { s.text = e.target.value; };
+    $('#prec', root).onchange = (e) => { s.prec = +e.target.value; update(); };
+    $('#dec', root).onclick = () => { this.runDecode(s); update(); };
+    $('#ex5', root).onclick = () => { s.text = EX5; s.prec = 5; this.runDecode(s); select(current); };
+    $('#ex6', root).onclick = () => { s.prec = 6; s.text = g.encode([37.7749, -122.4194, 37.8044, -122.2712, 37.8716, -122.2727, 38.5816, -121.4944], 6); this.runDecode(s); select(current); };
+    $('#clr', root).onclick = () => { s.path = []; update(); };
+    $('#copy', root).onclick = async () => { const v = $('#encout', root).value; try { await navigator.clipboard.writeText(v); } catch { $('#encout', root).select(); document.execCommand('copy'); } };
+  },
+  click(s, ll) { s.path.push(wrapLL(ll)); },
+  render(s, out, root) {
+    $('#pp', root).textContent = s.prec;
+    if (s.dec.length) { L.polyline(s.dec, { color: '#0b6bcb', weight: 4 }).addTo(layer); s.dec.forEach((p) => dot(p, '#0b6bcb', 3).addTo(layer)); }
+    if (s.path.length) { L.polyline(s.path, { color: '#cf222e', weight: 3, dashArray: '6 4' }).addTo(layer); s.path.forEach((p) => dot(p, '#cf222e', 4).addTo(layer)); }
+    $('#encout', root).value = s.path.length ? g.encode(flat(s.path), s.prec) : '';
+    out.innerHTML = s.err ? `<span class="err">${esc(s.err)}</span>`
+      : s.dec.length ? `decoded ${s.dec.length} points, length ${fmtM(g.pathLength(flat(s.dec)))}${s.canonical ? '' : '\n(note: re-encoding differs from the input — non-canonical or lossy)'}`
+      : 'Decode a polyline above, or click the map to draw a path.';
+  },
+});
+
+// ---------------------------------------------------------------- 5. Simplify
+function wiggle() {
+  const pts = [], o = [37.74, -122.50];
+  for (let i = 0; i <= 80; i++) {
+    const along = i * 150, side = Math.sin(i / 5) * 400 + Math.sin(i * 1.9) * 60;
+    const a = g.offset(o[0], o[1], along, 90), b = g.offset(a[0], a[1], Math.abs(side), side >= 0 ? 0 : 180);
+    pts.push(L.latLng(b[0], b[1]));
+  }
+  return pts;
+}
+tabs.push({
+  id: 'simplify', title: 'Simplify',
+  desc: 'Douglas–Peucker. Draw a path (or load the example) and drag the tolerance slider.',
+  fn: 'geo::simplify',
+  code: `std::vector<geo::LatLng> slim = geo::simplify(path, 50.0 /*m*/);
+// slim.size() <= path.size(); endpoints are always kept`,
+  state() { return { path: [], tol: 100, geodesic: false }; },
+  example(s) { s.path = wiggle(); s.tol = 150; map.fitBounds(L.latLngBounds(s.path).pad(0.1)); },
+  controls: (s) => `<label>Tolerance: <b id="tv"></b></label><input id="tol" type="range" min="0" max="1500" step="5" value="${s.tol}">
+    <label><input id="geod" type="checkbox"> geodesic</label><div class="row"><button class="b" id="clr">Clear path</button></div>`,
+  bind(s, root, update) {
+    $('#tol', root).oninput = (e) => { s.tol = +e.target.value; update(); };
+    $('#geod', root).onchange = (e) => { s.geodesic = e.target.checked; update(); };
+    $('#clr', root).onclick = () => { s.path = []; update(); };
+  },
+  click(s, ll) { s.path.push(wrapLL(ll)); },
+  render(s, out, root) {
+    $('#tv', root).textContent = s.tol + ' m';
+    if (s.path.length < 2) { s.path.forEach((p) => dot(p).addTo(layer)); out.textContent = 'Click to draw a path (≥ 2 points), or press “Load example”.'; return; }
+    const slim = unflat(Array.from(g.simplify(flat(s.path), s.tol, s.geodesic)));
+    L.polyline(s.path, { color: '#8b949e', weight: 3 }).addTo(layer);
+    L.polyline(slim, { color: '#cf222e', weight: 3 }).addTo(layer);
+    slim.forEach((p) => dot(p, '#cf222e', 4).addTo(layer));
+    out.textContent = `points: ${s.path.length} → ${slim.length}\nlength: ${fmtM(g.pathLength(flat(s.path)))} → ${fmtM(g.pathLength(flat(slim)))}`;
+  },
+});
+
+// ---------------------------------------------------------------- 6. Snap
+tabs.push({
+  id: 'snap', title: 'Snap to route',
+  desc: 'Drag the marker: it is projected onto the nearest segment of the path. Click the map to draw your own path.',
+  fn: 'geo::closest_point_on_path · geo::path_length',
+  code: `auto hit = geo::closest_point_on_path(gps_fix, route);
+if (hit) {  // hit->point, hit->segment, hit->distance (m)
+  double along = geo::path_length(prefix) + geo::distance_between(route[hit->segment], hit->point);
+}`,
+  state() { return { path: [], p: L.latLng(37.83, -122.30) }; },
+  example(s) { s.path = unflat([37.7749, -122.4194, 37.8044, -122.2712, 37.8716, -122.2727, 38.5816, -121.4944]); s.p = L.latLng(37.83, -122.30); map.fitBounds(L.latLngBounds(s.path).pad(0.15)); },
+  controls: () => `<div class="row"><button class="b" id="clr">Clear &amp; draw new path</button></div>`,
+  bind(s, root, update) { $('#clr', root).onclick = () => { s.path = []; update(); }; },
+  click(s, ll) { s.path.push(wrapLL(ll)); },
+  render(s, out) {
+    if (s.path.length) L.polyline(s.path, { color: '#0b6bcb', weight: 4 }).addTo(layer);
+    s.path.forEach((p) => dot(p, '#0b6bcb', 3).addTo(layer));
+    const proj = L.polyline([], { color: '#cf222e', dashArray: '4 4' }).addTo(layer), pm = dot(s.p, '#1a7f37', 6).addTo(layer);
+    const m = L.marker(s.p, { draggable: true }).addTo(layer);
+    const upd = () => {
+      if (s.path.length < 2) { out.textContent = 'Draw a path with at least 2 points.'; return; }
+      const r = Array.from(g.closestPointOnPath(s.p.lat, s.p.lng, flat(s.path)));
+      proj.setLatLngs([s.p, L.latLng(r[0], r[1])]); pm.setLatLng(L.latLng(r[0], r[1]));
+      out.textContent = `snapped   ${r[0].toFixed(5)}, ${r[1].toFixed(5)}\nsegment   ${r[2]}\noff route ${fmtM(r[3])}\nalong     ${fmtM(r[4])} of ${fmtM(g.pathLength(flat(s.path)))}`;
+    };
+    m.on('drag', (e) => { s.p = e.target.getLatLng(); upd(); });
+    upd();
+  },
+});
+
+// ---------------------------------------------------------------- 7. Area
+tabs.push({
+  id: 'area', title: 'Area',
+  desc: 'Click to outline a polygon. The area is spherical, not planar — try a big one.',
+  fn: 'geo::area · geo::path_length',
+  code: `double m2 = geo::area(polygon);     // square meters, on the sphere
+double pm = geo::path_length(closed_polygon);`,
+  state() { return { poly: [] }; },
+  example(s) { s.poly = unflat([41, -109.05, 41, -102.05, 37, -102.05, 37, -109.05]); map.fitBounds(L.latLngBounds(s.poly).pad(0.2)); },
+  controls: () => `<div class="row"><button class="b" id="clr">Reset polygon</button></div>`,
+  bind(s, root, update) { $('#clr', root).onclick = () => { s.poly = []; update(); }; },
+  click(s, ll) { s.poly.push(wrapLL(ll)); },
+  render(s, out) {
+    if (s.poly.length >= 3) L.polygon(s.poly, { color: '#0b6bcb', weight: 2, fillOpacity: 0.15 }).addTo(layer);
+    else if (s.poly.length) L.polyline(s.poly, { color: '#0b6bcb' }).addTo(layer);
+    s.poly.forEach((p) => dot(p, '#0b6bcb', 4).addTo(layer));
+    if (s.poly.length < 3) { out.textContent = 'Add at least 3 vertices.'; return; }
+    const f = flat(s.poly), m2 = g.area(f), per = g.pathLength(f.concat(f.slice(0, 2)));
+    out.textContent = `area       ${fmtA(m2)}\n           ${(m2 / 1e4).toFixed(2)} ha\nperimeter  ${fmtM(per)}`;
+  },
+});
+
+// ---------------------------------------------------------------- shell
+const nav = $('#tabs'), panel = $('#panel');
+tabs.forEach((t) => {
+  t.s = t.state();
+  t.btn = document.createElement('button');
+  t.btn.textContent = t.title; t.btn.setAttribute('role', 'tab');
+  t.btn.onclick = () => select(t);
+  nav.append(t.btn);
+});
+
+function select(t, loadExample = false) {
+  current = t;
+  tabs.forEach((x) => x.btn.setAttribute('aria-selected', x === t));
+  panel.innerHTML = `<h2>${t.title}</h2><p class="desc">${t.desc}</p>
+    <div class="row"><button class="b primary" id="exbtn">Load example</button></div>
+    <div id="ctl">${t.controls ? t.controls(t.s) : ''}</div><div class="out" id="out"></div>
+    <div class="fn">Calls <b>${t.fn}</b></div><pre class="code">${esc(t.code)}</pre>`;
+  const update = (fit) => draw();
+  if (t.bind) t.bind(t.s, $('#ctl'), update);
+  $('#exbtn').onclick = () => { t.s = t.state(); t.example(t.s); select(t); };
+  if (!t.shown) { t.shown = true; t.example(t.s); if (t.bind) { select(t); return; } }
+  draw();
+}
+function draw() {
+  layer.clearLayers();
+  try { current.render(current.s, $('#out'), $('#ctl')); }
+  catch (e) { console.error(e); $('#out').innerHTML = `<span class="err">${esc(e.message || e)}</span>`; }
+}
+map.on('click', (e) => { current.click(current.s, e.latlng); draw(); });
+
+select(tabs[0]);
+</script>
+</body>
+</html>

From e5d546c92a946a7bd458feb264a731d4935e17e5 Mon Sep 17 00:00:00 2001
From: Aleksandr Kovalko <gistrec@gmail.com>
Date: Wed, 7 Oct 2026 07:03:00 +0200
Subject: [PATCH 2/3] demo: vendor Leaflet, fix polyline precision re-decode,
 fix verify.mjs string compare

Verified: WASM (emsdk 6.0.11) matches the native reference on all 19 values,
and a Playwright smoke test exercised all seven panels plus mobile layout.
---
 demo/README.md                                |   4 +-
 demo/test/verify.mjs                          |  17 +-
 demo/web/index.html                           |   6 +-
 demo/web/vendor/leaflet/LICENSE               |  26 +
 demo/web/vendor/leaflet/images/layers-2x.png  | Bin 0 -> 1259 bytes
 demo/web/vendor/leaflet/images/layers.png     | Bin 0 -> 696 bytes
 .../vendor/leaflet/images/marker-icon-2x.png  | Bin 0 -> 2464 bytes
 .../web/vendor/leaflet/images/marker-icon.png | Bin 0 -> 1466 bytes
 .../vendor/leaflet/images/marker-shadow.png   | Bin 0 -> 618 bytes
 demo/web/vendor/leaflet/leaflet.css           | 661 ++++++++++++++++++
 demo/web/vendor/leaflet/leaflet.js            |   6 +
 11 files changed, 710 insertions(+), 10 deletions(-)
 create mode 100644 demo/web/vendor/leaflet/LICENSE
 create mode 100644 demo/web/vendor/leaflet/images/layers-2x.png
 create mode 100644 demo/web/vendor/leaflet/images/layers.png
 create mode 100644 demo/web/vendor/leaflet/images/marker-icon-2x.png
 create mode 100644 demo/web/vendor/leaflet/images/marker-icon.png
 create mode 100644 demo/web/vendor/leaflet/images/marker-shadow.png
 create mode 100644 demo/web/vendor/leaflet/leaflet.css
 create mode 100644 demo/web/vendor/leaflet/leaflet.js

diff --git a/demo/README.md b/demo/README.md
index 9c739dd..a29de04 100644
--- a/demo/README.md
+++ b/demo/README.md
@@ -3,8 +3,8 @@
 An interactive map page where every number is computed by the C++ library compiled to
 WebAssembly: distance & bearing, offset, geofence (point-in-polygon), polyline
 encode/decode (precision 5 and 6), Douglas–Peucker simplify, snap-to-route, and spherical area.
-Client-side only: no backend, no API keys, no trackers. Map tiles come from OpenStreetMap
-and Leaflet from unpkg.
+Client-side only: no backend, no API keys, no trackers. Map tiles come from OpenStreetMap;
+Leaflet 1.9.4 (BSD-2) is vendored in `web/vendor/leaflet/`, so the only external request is for tiles.
 
 ## Layout
 
diff --git a/demo/test/verify.mjs b/demo/test/verify.mjs
index 44eebb4..50976fd 100644
--- a/demo/test/verify.mjs
+++ b/demo/test/verify.mjs
@@ -41,11 +41,18 @@ const actual = {
 let bad = 0;
 for (const [key, want] of Object.entries(expected)) {
   const got = actual[key];
-  const a = Array.isArray(want) ? want : [want];
-  const b = Array.isArray(got) ? got : [got];
-  const diff = typeof want === 'string' ? (want === got ? 0 : Infinity)
-    : Math.max(a.length === b.length ? 0 : Infinity, ...a.map((x, i) => Math.abs(x - b[i])));
-  const ok = diff <= 1e-9 * Math.max(1, ...a.map(Math.abs));
+  let ok, diff;
+  if (typeof want === 'string') {
+    ok = want === got;
+    diff = ok ? 0 : `"${want}" != "${got}"`;
+  } else {
+    const a = Array.isArray(want) ? want : [want];
+    const b = Array.isArray(got) ? got : [got];
+    diff = a.length === b.length ? Math.max(...a.map((x, i) => Math.abs(x - b[i]))) : Infinity;
+    // Native and WASM run the same C++ (libm sin/cos/asin may differ in the last ulps).
+    // Tolerance is relative to the magnitude, so km-scale areas are not held to nanometers.
+    ok = diff <= 1e-9 * Math.max(1, ...a.map(Math.abs));
+  }
   if (!ok) bad++;
   console.log(`${ok ? 'OK  ' : 'FAIL'} ${key.padEnd(20)} max|Δ| = ${diff}`);
 }
diff --git a/demo/web/index.html b/demo/web/index.html
index 69d9bed..bcffee4 100644
--- a/demo/web/index.html
+++ b/demo/web/index.html
@@ -5,7 +5,7 @@
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <title>geo-utils-cpp — live demo</title>
 <meta name="description" content="Interactive demo of geo-utils-cpp, a header-only C++17 geodesy library, compiled to WebAssembly. Every number on this page is computed by the C++ code in your browser.">
-<link rel="stylesheet" href="https://unpkg.com/leaflet@1.9.4/dist/leaflet.css" integrity="sha256-p4NxAoJBhIIN+hmNHrzRCf9tD/miZyoHS5obTRR9BMY=" crossorigin="">
+<link rel="stylesheet" href="vendor/leaflet/leaflet.css">
 <style>
   :root { --bg:#fafafa; --fg:#1b1f23; --muted:#5b6570; --card:#fff; --line:#d8dee4; --accent:#0b6bcb; --ok:#1a7f37; --bad:#cf222e; --code:#f3f5f7; }
   @media (prefers-color-scheme: dark) {
@@ -63,7 +63,7 @@ <h1>geo-utils-cpp</h1>
 </main>
 <footer>Map © <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors. Distances are on a sphere of radius 6 371 009 m, like Google Maps geometry.</footer>
 
-<script src="https://unpkg.com/leaflet@1.9.4/dist/leaflet.js" integrity="sha256-20nQCchB9co0qIjJZRGuk2/Z9VM+kNiyxNV1lvTlZBo=" crossorigin=""></script>
+<script src="vendor/leaflet/leaflet.js"></script>
 <script type="module">
 const $ = (sel, root = document) => root.querySelector(sel);
 const fmtM = (m) => m >= 10000 ? (m / 1000).toFixed(2) + ' km' : m.toFixed(1) + ' m';
@@ -216,7 +216,7 @@ <h1>geo-utils-cpp</h1>
   bind(s, root, update) {
     $('#prec', root).value = String(s.prec);
     $('#enc', root).oninput = (e) => { s.text = e.target.value; };
-    $('#prec', root).onchange = (e) => { s.prec = +e.target.value; update(); };
+    $('#prec', root).onchange = (e) => { s.prec = +e.target.value; if (s.text.trim()) this.runDecode(s); update(); };
     $('#dec', root).onclick = () => { this.runDecode(s); update(); };
     $('#ex5', root).onclick = () => { s.text = EX5; s.prec = 5; this.runDecode(s); select(current); };
     $('#ex6', root).onclick = () => { s.prec = 6; s.text = g.encode([37.7749, -122.4194, 37.8044, -122.2712, 37.8716, -122.2727, 38.5816, -121.4944], 6); this.runDecode(s); select(current); };
diff --git a/demo/web/vendor/leaflet/LICENSE b/demo/web/vendor/leaflet/LICENSE
new file mode 100644
index 0000000..7b41f20
--- /dev/null
+++ b/demo/web/vendor/leaflet/LICENSE
@@ -0,0 +1,26 @@
+BSD 2-Clause License
+
+Copyright (c) 2010-2023, Volodymyr Agafonkin
+Copyright (c) 2010-2011, CloudMade
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/demo/web/vendor/leaflet/images/layers-2x.png b/demo/web/vendor/leaflet/images/layers-2x.png
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diff --git a/demo/web/vendor/leaflet/images/marker-icon.png b/demo/web/vendor/leaflet/images/marker-icon.png
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diff --git a/demo/web/vendor/leaflet/images/marker-shadow.png b/demo/web/vendor/leaflet/images/marker-shadow.png
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diff --git a/demo/web/vendor/leaflet/leaflet.css b/demo/web/vendor/leaflet/leaflet.css
new file mode 100644
index 0000000..9ade8dc
--- /dev/null
+++ b/demo/web/vendor/leaflet/leaflet.css
@@ -0,0 +1,661 @@
+/* required styles */
+
+.leaflet-pane,
+.leaflet-tile,
+.leaflet-marker-icon,
+.leaflet-marker-shadow,
+.leaflet-tile-container,
+.leaflet-pane > svg,
+.leaflet-pane > canvas,
+.leaflet-zoom-box,
+.leaflet-image-layer,
+.leaflet-layer {
+	position: absolute;
+	left: 0;
+	top: 0;
+	}
+.leaflet-container {
+	overflow: hidden;
+	}
+.leaflet-tile,
+.leaflet-marker-icon,
+.leaflet-marker-shadow {
+	-webkit-user-select: none;
+	   -moz-user-select: none;
+	        user-select: none;
+	  -webkit-user-drag: none;
+	}
+/* Prevents IE11 from highlighting tiles in blue */
+.leaflet-tile::selection {
+	background: transparent;
+}
+/* Safari renders non-retina tile on retina better with this, but Chrome is worse */
+.leaflet-safari .leaflet-tile {
+	image-rendering: -webkit-optimize-contrast;
+	}
+/* hack that prevents hw layers "stretching" when loading new tiles */
+.leaflet-safari .leaflet-tile-container {
+	width: 1600px;
+	height: 1600px;
+	-webkit-transform-origin: 0 0;
+	}
+.leaflet-marker-icon,
+.leaflet-marker-shadow {
+	display: block;
+	}
+/* .leaflet-container svg: reset svg max-width decleration shipped in Joomla! (joomla.org) 3.x */
+/* .leaflet-container img: map is broken in FF if you have max-width: 100% on tiles */
+.leaflet-container .leaflet-overlay-pane svg {
+	max-width: none !important;
+	max-height: none !important;
+	}
+.leaflet-container .leaflet-marker-pane img,
+.leaflet-container .leaflet-shadow-pane img,
+.leaflet-container .leaflet-tile-pane img,
+.leaflet-container img.leaflet-image-layer,
+.leaflet-container .leaflet-tile {
+	max-width: none !important;
+	max-height: none !important;
+	width: auto;
+	padding: 0;
+	}
+
+.leaflet-container img.leaflet-tile {
+	/* See: https://bugs.chromium.org/p/chromium/issues/detail?id=600120 */
+	mix-blend-mode: plus-lighter;
+}
+
+.leaflet-container.leaflet-touch-zoom {
+	-ms-touch-action: pan-x pan-y;
+	touch-action: pan-x pan-y;
+	}
+.leaflet-container.leaflet-touch-drag {
+	-ms-touch-action: pinch-zoom;
+	/* Fallback for FF which doesn't support pinch-zoom */
+	touch-action: none;
+	touch-action: pinch-zoom;
+}
+.leaflet-container.leaflet-touch-drag.leaflet-touch-zoom {
+	-ms-touch-action: none;
+	touch-action: none;
+}
+.leaflet-container {
+	-webkit-tap-highlight-color: transparent;
+}
+.leaflet-container a {
+	-webkit-tap-highlight-color: rgba(51, 181, 229, 0.4);
+}
+.leaflet-tile {
+	filter: inherit;
+	visibility: hidden;
+	}
+.leaflet-tile-loaded {
+	visibility: inherit;
+	}
+.leaflet-zoom-box {
+	width: 0;
+	height: 0;
+	-moz-box-sizing: border-box;
+	     box-sizing: border-box;
+	z-index: 800;
+	}
+/* workaround for https://bugzilla.mozilla.org/show_bug.cgi?id=888319 */
+.leaflet-overlay-pane svg {
+	-moz-user-select: none;
+	}
+
+.leaflet-pane         { z-index: 400; }
+
+.leaflet-tile-pane    { z-index: 200; }
+.leaflet-overlay-pane { z-index: 400; }
+.leaflet-shadow-pane  { z-index: 500; }
+.leaflet-marker-pane  { z-index: 600; }
+.leaflet-tooltip-pane   { z-index: 650; }
+.leaflet-popup-pane   { z-index: 700; }
+
+.leaflet-map-pane canvas { z-index: 100; }
+.leaflet-map-pane svg    { z-index: 200; }
+
+.leaflet-vml-shape {
+	width: 1px;
+	height: 1px;
+	}
+.lvml {
+	behavior: url(#default#VML);
+	display: inline-block;
+	position: absolute;
+	}
+
+
+/* control positioning */
+
+.leaflet-control {
+	position: relative;
+	z-index: 800;
+	pointer-events: visiblePainted; /* IE 9-10 doesn't have auto */
+	pointer-events: auto;
+	}
+.leaflet-top,
+.leaflet-bottom {
+	position: absolute;
+	z-index: 1000;
+	pointer-events: none;
+	}
+.leaflet-top {
+	top: 0;
+	}
+.leaflet-right {
+	right: 0;
+	}
+.leaflet-bottom {
+	bottom: 0;
+	}
+.leaflet-left {
+	left: 0;
+	}
+.leaflet-control {
+	float: left;
+	clear: both;
+	}
+.leaflet-right .leaflet-control {
+	float: right;
+	}
+.leaflet-top .leaflet-control {
+	margin-top: 10px;
+	}
+.leaflet-bottom .leaflet-control {
+	margin-bottom: 10px;
+	}
+.leaflet-left .leaflet-control {
+	margin-left: 10px;
+	}
+.leaflet-right .leaflet-control {
+	margin-right: 10px;
+	}
+
+
+/* zoom and fade animations */
+
+.leaflet-fade-anim .leaflet-popup {
+	opacity: 0;
+	-webkit-transition: opacity 0.2s linear;
+	   -moz-transition: opacity 0.2s linear;
+	        transition: opacity 0.2s linear;
+	}
+.leaflet-fade-anim .leaflet-map-pane .leaflet-popup {
+	opacity: 1;
+	}
+.leaflet-zoom-animated {
+	-webkit-transform-origin: 0 0;
+	    -ms-transform-origin: 0 0;
+	        transform-origin: 0 0;
+	}
+svg.leaflet-zoom-animated {
+	will-change: transform;
+}
+
+.leaflet-zoom-anim .leaflet-zoom-animated {
+	-webkit-transition: -webkit-transform 0.25s cubic-bezier(0,0,0.25,1);
+	   -moz-transition:    -moz-transform 0.25s cubic-bezier(0,0,0.25,1);
+	        transition:         transform 0.25s cubic-bezier(0,0,0.25,1);
+	}
+.leaflet-zoom-anim .leaflet-tile,
+.leaflet-pan-anim .leaflet-tile {
+	-webkit-transition: none;
+	   -moz-transition: none;
+	        transition: none;
+	}
+
+.leaflet-zoom-anim .leaflet-zoom-hide {
+	visibility: hidden;
+	}
+
+
+/* cursors */
+
+.leaflet-interactive {
+	cursor: pointer;
+	}
+.leaflet-grab {
+	cursor: -webkit-grab;
+	cursor:    -moz-grab;
+	cursor:         grab;
+	}
+.leaflet-crosshair,
+.leaflet-crosshair .leaflet-interactive {
+	cursor: crosshair;
+	}
+.leaflet-popup-pane,
+.leaflet-control {
+	cursor: auto;
+	}
+.leaflet-dragging .leaflet-grab,
+.leaflet-dragging .leaflet-grab .leaflet-interactive,
+.leaflet-dragging .leaflet-marker-draggable {
+	cursor: move;
+	cursor: -webkit-grabbing;
+	cursor:    -moz-grabbing;
+	cursor:         grabbing;
+	}
+
+/* marker & overlays interactivity */
+.leaflet-marker-icon,
+.leaflet-marker-shadow,
+.leaflet-image-layer,
+.leaflet-pane > svg path,
+.leaflet-tile-container {
+	pointer-events: none;
+	}
+
+.leaflet-marker-icon.leaflet-interactive,
+.leaflet-image-layer.leaflet-interactive,
+.leaflet-pane > svg path.leaflet-interactive,
+svg.leaflet-image-layer.leaflet-interactive path {
+	pointer-events: visiblePainted; /* IE 9-10 doesn't have auto */
+	pointer-events: auto;
+	}
+
+/* visual tweaks */
+
+.leaflet-container {
+	background: #ddd;
+	outline-offset: 1px;
+	}
+.leaflet-container a {
+	color: #0078A8;
+	}
+.leaflet-zoom-box {
+	border: 2px dotted #38f;
+	background: rgba(255,255,255,0.5);
+	}
+
+
+/* general typography */
+.leaflet-container {
+	font-family: "Helvetica Neue", Arial, Helvetica, sans-serif;
+	font-size: 12px;
+	font-size: 0.75rem;
+	line-height: 1.5;
+	}
+
+
+/* general toolbar styles */
+
+.leaflet-bar {
+	box-shadow: 0 1px 5px rgba(0,0,0,0.65);
+	border-radius: 4px;
+	}
+.leaflet-bar a {
+	background-color: #fff;
+	border-bottom: 1px solid #ccc;
+	width: 26px;
+	height: 26px;
+	line-height: 26px;
+	display: block;
+	text-align: center;
+	text-decoration: none;
+	color: black;
+	}
+.leaflet-bar a,
+.leaflet-control-layers-toggle {
+	background-position: 50% 50%;
+	background-repeat: no-repeat;
+	display: block;
+	}
+.leaflet-bar a:hover,
+.leaflet-bar a:focus {
+	background-color: #f4f4f4;
+	}
+.leaflet-bar a:first-child {
+	border-top-left-radius: 4px;
+	border-top-right-radius: 4px;
+	}
+.leaflet-bar a:last-child {
+	border-bottom-left-radius: 4px;
+	border-bottom-right-radius: 4px;
+	border-bottom: none;
+	}
+.leaflet-bar a.leaflet-disabled {
+	cursor: default;
+	background-color: #f4f4f4;
+	color: #bbb;
+	}
+
+.leaflet-touch .leaflet-bar a {
+	width: 30px;
+	height: 30px;
+	line-height: 30px;
+	}
+.leaflet-touch .leaflet-bar a:first-child {
+	border-top-left-radius: 2px;
+	border-top-right-radius: 2px;
+	}
+.leaflet-touch .leaflet-bar a:last-child {
+	border-bottom-left-radius: 2px;
+	border-bottom-right-radius: 2px;
+	}
+
+/* zoom control */
+
+.leaflet-control-zoom-in,
+.leaflet-control-zoom-out {
+	font: bold 18px 'Lucida Console', Monaco, monospace;
+	text-indent: 1px;
+	}
+
+.leaflet-touch .leaflet-control-zoom-in, .leaflet-touch .leaflet-control-zoom-out  {
+	font-size: 22px;
+	}
+
+
+/* layers control */
+
+.leaflet-control-layers {
+	box-shadow: 0 1px 5px rgba(0,0,0,0.4);
+	background: #fff;
+	border-radius: 5px;
+	}
+.leaflet-control-layers-toggle {
+	background-image: url(images/layers.png);
+	width: 36px;
+	height: 36px;
+	}
+.leaflet-retina .leaflet-control-layers-toggle {
+	background-image: url(images/layers-2x.png);
+	background-size: 26px 26px;
+	}
+.leaflet-touch .leaflet-control-layers-toggle {
+	width: 44px;
+	height: 44px;
+	}
+.leaflet-control-layers .leaflet-control-layers-list,
+.leaflet-control-layers-expanded .leaflet-control-layers-toggle {
+	display: none;
+	}
+.leaflet-control-layers-expanded .leaflet-control-layers-list {
+	display: block;
+	position: relative;
+	}
+.leaflet-control-layers-expanded {
+	padding: 6px 10px 6px 6px;
+	color: #333;
+	background: #fff;
+	}
+.leaflet-control-layers-scrollbar {
+	overflow-y: scroll;
+	overflow-x: hidden;
+	padding-right: 5px;
+	}
+.leaflet-control-layers-selector {
+	margin-top: 2px;
+	position: relative;
+	top: 1px;
+	}
+.leaflet-control-layers label {
+	display: block;
+	font-size: 13px;
+	font-size: 1.08333em;
+	}
+.leaflet-control-layers-separator {
+	height: 0;
+	border-top: 1px solid #ddd;
+	margin: 5px -10px 5px -6px;
+	}
+
+/* Default icon URLs */
+.leaflet-default-icon-path { /* used only in path-guessing heuristic, see L.Icon.Default */
+	background-image: url(images/marker-icon.png);
+	}
+
+
+/* attribution and scale controls */
+
+.leaflet-container .leaflet-control-attribution {
+	background: #fff;
+	background: rgba(255, 255, 255, 0.8);
+	margin: 0;
+	}
+.leaflet-control-attribution,
+.leaflet-control-scale-line {
+	padding: 0 5px;
+	color: #333;
+	line-height: 1.4;
+	}
+.leaflet-control-attribution a {
+	text-decoration: none;
+	}
+.leaflet-control-attribution a:hover,
+.leaflet-control-attribution a:focus {
+	text-decoration: underline;
+	}
+.leaflet-attribution-flag {
+	display: inline !important;
+	vertical-align: baseline !important;
+	width: 1em;
+	height: 0.6669em;
+	}
+.leaflet-left .leaflet-control-scale {
+	margin-left: 5px;
+	}
+.leaflet-bottom .leaflet-control-scale {
+	margin-bottom: 5px;
+	}
+.leaflet-control-scale-line {
+	border: 2px solid #777;
+	border-top: none;
+	line-height: 1.1;
+	padding: 2px 5px 1px;
+	white-space: nowrap;
+	-moz-box-sizing: border-box;
+	     box-sizing: border-box;
+	background: rgba(255, 255, 255, 0.8);
+	text-shadow: 1px 1px #fff;
+	}
+.leaflet-control-scale-line:not(:first-child) {
+	border-top: 2px solid #777;
+	border-bottom: none;
+	margin-top: -2px;
+	}
+.leaflet-control-scale-line:not(:first-child):not(:last-child) {
+	border-bottom: 2px solid #777;
+	}
+
+.leaflet-touch .leaflet-control-attribution,
+.leaflet-touch .leaflet-control-layers,
+.leaflet-touch .leaflet-bar {
+	box-shadow: none;
+	}
+.leaflet-touch .leaflet-control-layers,
+.leaflet-touch .leaflet-bar {
+	border: 2px solid rgba(0,0,0,0.2);
+	background-clip: padding-box;
+	}
+
+
+/* popup */
+
+.leaflet-popup {
+	position: absolute;
+	text-align: center;
+	margin-bottom: 20px;
+	}
+.leaflet-popup-content-wrapper {
+	padding: 1px;
+	text-align: left;
+	border-radius: 12px;
+	}
+.leaflet-popup-content {
+	margin: 13px 24px 13px 20px;
+	line-height: 1.3;
+	font-size: 13px;
+	font-size: 1.08333em;
+	min-height: 1px;
+	}
+.leaflet-popup-content p {
+	margin: 17px 0;
+	margin: 1.3em 0;
+	}
+.leaflet-popup-tip-container {
+	width: 40px;
+	height: 20px;
+	position: absolute;
+	left: 50%;
+	margin-top: -1px;
+	margin-left: -20px;
+	overflow: hidden;
+	pointer-events: none;
+	}
+.leaflet-popup-tip {
+	width: 17px;
+	height: 17px;
+	padding: 1px;
+
+	margin: -10px auto 0;
+	pointer-events: auto;
+
+	-webkit-transform: rotate(45deg);
+	   -moz-transform: rotate(45deg);
+	    -ms-transform: rotate(45deg);
+	        transform: rotate(45deg);
+	}
+.leaflet-popup-content-wrapper,
+.leaflet-popup-tip {
+	background: white;
+	color: #333;
+	box-shadow: 0 3px 14px rgba(0,0,0,0.4);
+	}
+.leaflet-container a.leaflet-popup-close-button {
+	position: absolute;
+	top: 0;
+	right: 0;
+	border: none;
+	text-align: center;
+	width: 24px;
+	height: 24px;
+	font: 16px/24px Tahoma, Verdana, sans-serif;
+	color: #757575;
+	text-decoration: none;
+	background: transparent;
+	}
+.leaflet-container a.leaflet-popup-close-button:hover,
+.leaflet-container a.leaflet-popup-close-button:focus {
+	color: #585858;
+	}
+.leaflet-popup-scrolled {
+	overflow: auto;
+	}
+
+.leaflet-oldie .leaflet-popup-content-wrapper {
+	-ms-zoom: 1;
+	}
+.leaflet-oldie .leaflet-popup-tip {
+	width: 24px;
+	margin: 0 auto;
+
+	-ms-filter: "progid:DXImageTransform.Microsoft.Matrix(M11=0.70710678, M12=0.70710678, M21=-0.70710678, M22=0.70710678)";
+	filter: progid:DXImageTransform.Microsoft.Matrix(M11=0.70710678, M12=0.70710678, M21=-0.70710678, M22=0.70710678);
+	}
+
+.leaflet-oldie .leaflet-control-zoom,
+.leaflet-oldie .leaflet-control-layers,
+.leaflet-oldie .leaflet-popup-content-wrapper,
+.leaflet-oldie .leaflet-popup-tip {
+	border: 1px solid #999;
+	}
+
+
+/* div icon */
+
+.leaflet-div-icon {
+	background: #fff;
+	border: 1px solid #666;
+	}
+
+
+/* Tooltip */
+/* Base styles for the element that has a tooltip */
+.leaflet-tooltip {
+	position: absolute;
+	padding: 6px;
+	background-color: #fff;
+	border: 1px solid #fff;
+	border-radius: 3px;
+	color: #222;
+	white-space: nowrap;
+	-webkit-user-select: none;
+	-moz-user-select: none;
+	-ms-user-select: none;
+	user-select: none;
+	pointer-events: none;
+	box-shadow: 0 1px 3px rgba(0,0,0,0.4);
+	}
+.leaflet-tooltip.leaflet-interactive {
+	cursor: pointer;
+	pointer-events: auto;
+	}
+.leaflet-tooltip-top:before,
+.leaflet-tooltip-bottom:before,
+.leaflet-tooltip-left:before,
+.leaflet-tooltip-right:before {
+	position: absolute;
+	pointer-events: none;
+	border: 6px solid transparent;
+	background: transparent;
+	content: "";
+	}
+
+/* Directions */
+
+.leaflet-tooltip-bottom {
+	margin-top: 6px;
+}
+.leaflet-tooltip-top {
+	margin-top: -6px;
+}
+.leaflet-tooltip-bottom:before,
+.leaflet-tooltip-top:before {
+	left: 50%;
+	margin-left: -6px;
+	}
+.leaflet-tooltip-top:before {
+	bottom: 0;
+	margin-bottom: -12px;
+	border-top-color: #fff;
+	}
+.leaflet-tooltip-bottom:before {
+	top: 0;
+	margin-top: -12px;
+	margin-left: -6px;
+	border-bottom-color: #fff;
+	}
+.leaflet-tooltip-left {
+	margin-left: -6px;
+}
+.leaflet-tooltip-right {
+	margin-left: 6px;
+}
+.leaflet-tooltip-left:before,
+.leaflet-tooltip-right:before {
+	top: 50%;
+	margin-top: -6px;
+	}
+.leaflet-tooltip-left:before {
+	right: 0;
+	margin-right: -12px;
+	border-left-color: #fff;
+	}
+.leaflet-tooltip-right:before {
+	left: 0;
+	margin-left: -12px;
+	border-right-color: #fff;
+	}
+
+/* Printing */
+
+@media print {
+	/* Prevent printers from removing background-images of controls. */
+	.leaflet-control {
+		-webkit-print-color-adjust: exact;
+		print-color-adjust: exact;
+		}
+	}
diff --git a/demo/web/vendor/leaflet/leaflet.js b/demo/web/vendor/leaflet/leaflet.js
new file mode 100644
index 0000000..a3bf693
--- /dev/null
+++ b/demo/web/vendor/leaflet/leaflet.js
@@ -0,0 +1,6 @@
+/* @preserve
+ * Leaflet 1.9.4, a JS library for interactive maps. https://leafletjs.com
+ * (c) 2010-2023 Vladimir Agafonkin, (c) 2010-2011 CloudMade
+ */
+!function(t,e){"object"==typeof exports&&"undefined"!=typeof module?e(exports):"function"==typeof define&&define.amd?define(["exports"],e):e((t="undefined"!=typeof globalThis?globalThis:t||self).leaflet={})}(this,function(t){"use strict";function l(t){for(var e,i,n=1,o=arguments.length;n<o;n++)for(e in i=arguments[n])t[e]=i[e];return t}var R=Object.create||function(t){return N.prototype=t,new N};function N(){}function a(t,e){var i,n=Array.prototype.slice;return t.bind?t.bind.apply(t,n.call(arguments,1)):(i=n.call(arguments,2),function(){return t.apply(e,i.length?i.concat(n.call(arguments)):arguments)})}var D=0;function h(t){return"_leaflet_id"in t||(t._leaflet_id=++D),t._leaflet_id}function j(t,e,i){var n,o,s=function(){n=!1,o&&(r.apply(i,o),o=!1)},r=function(){n?o=arguments:(t.apply(i,arguments),setTimeout(s,e),n=!0)};return r}function H(t,e,i){var n=e[1],e=e[0],o=n-e;return t===n&&i?t:((t-e)%o+o)%o+e}function u(){return!1}function i(t,e){return!1===e?t:(e=Math.pow(10,void 0===e?6:e),Math.round(t*e)/e)}function W(t){return t.trim?t.trim():t.replace(/^\s+|\s+$/g,"")}function F(t){return W(t).split(/\s+/)}function c(t,e){for(var i in Object.prototype.hasOwnProperty.call(t,"options")||(t.options=t.options?R(t.options):{}),e)t.options[i]=e[i];return t.options}function U(t,e,i){var n,o=[];for(n in t)o.push(encodeURIComponent(i?n.toUpperCase():n)+"="+encodeURIComponent(t[n]));return(e&&-1!==e.indexOf("?")?"&":"?")+o.join("&")}var V=/\{ *([\w_ -]+) *\}/g;function q(t,i){return t.replace(V,function(t,e){e=i[e];if(void 0===e)throw new Error("No value provided for variable "+t);return e="function"==typeof e?e(i):e})}var d=Array.isArray||function(t){return"[object Array]"===Object.prototype.toString.call(t)};function G(t,e){for(var i=0;i<t.length;i++)if(t[i]===e)return i;return-1}var K="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=";function Y(t){return window["webkit"+t]||window["moz"+t]||window["ms"+t]}var X=0;function J(t){var e=+new Date,i=Math.max(0,16-(e-X));return X=e+i,window.setTimeout(t,i)}var $=window.requestAnimationFrame||Y("RequestAnimationFrame")||J,Q=window.cancelAnimationFrame||Y("CancelAnimationFrame")||Y("CancelRequestAnimationFrame")||function(t){window.clearTimeout(t)};function x(t,e,i){if(!i||$!==J)return $.call(window,a(t,e));t.call(e)}function r(t){t&&Q.call(window,t)}var tt={__proto__:null,extend:l,create:R,bind:a,get lastId(){return D},stamp:h,throttle:j,wrapNum:H,falseFn:u,formatNum:i,trim:W,splitWords:F,setOptions:c,getParamString:U,template:q,isArray:d,indexOf:G,emptyImageUrl:K,requestFn:$,cancelFn:Q,requestAnimFrame:x,cancelAnimFrame:r};function et(){}et.extend=function(t){function e(){c(this),this.initialize&&this.initialize.apply(this,arguments),this.callInitHooks()}var i,n=e.__super__=this.prototype,o=R(n);for(i in(o.constructor=e).prototype=o,this)Object.prototype.hasOwnProperty.call(this,i)&&"prototype"!==i&&"__super__"!==i&&(e[i]=this[i]);if(t.statics&&l(e,t.statics),t.includes){var s=t.includes;if("undefined"!=typeof L&&L&&L.Mixin){s=d(s)?s:[s];for(var r=0;r<s.length;r++)s[r]===L.Mixin.Events&&console.warn("Deprecated include of L.Mixin.Events: this property will be removed in future releases, please inherit from L.Evented instead.",(new Error).stack)}l.apply(null,[o].concat(t.includes))}return l(o,t),delete o.statics,delete o.includes,o.options&&(o.options=n.options?R(n.options):{},l(o.options,t.options)),o._initHooks=[],o.callInitHooks=function(){if(!this._initHooksCalled){n.callInitHooks&&n.callInitHooks.call(this),this._initHooksCalled=!0;for(var t=0,e=o._initHooks.length;t<e;t++)o._initHooks[t].call(this)}},e},et.include=function(t){var e=this.prototype.options;return l(this.prototype,t),t.options&&(this.prototype.options=e,this.mergeOptions(t.options)),this},et.mergeOptions=function(t){return l(this.prototype.options,t),this},et.addInitHook=function(t){var e=Array.prototype.slice.call(arguments,1),i="function"==typeof t?t:function(){this[t].apply(this,e)};return this.prototype._initHooks=this.prototype._initHooks||[],this.prototype._initHooks.push(i),this};var e={on:function(t,e,i){if("object"==typeof t)for(var n in t)this._on(n,t[n],e);else for(var o=0,s=(t=F(t)).length;o<s;o++)this._on(t[o],e,i);return this},off:function(t,e,i){if(arguments.length)if("object"==typeof t)for(var n in t)this._off(n,t[n],e);else{t=F(t);for(var o=1===arguments.length,s=0,r=t.length;s<r;s++)o?this._off(t[s]):this._off(t[s],e,i)}else delete this._events;return this},_on:function(t,e,i,n){"function"!=typeof e?console.warn("wrong listener type: "+typeof e):!1===this._listens(t,e,i)&&(e={fn:e,ctx:i=i===this?void 0:i},n&&(e.once=!0),this._events=this._events||{},this._events[t]=this._events[t]||[],this._events[t].push(e))},_off:function(t,e,i){var n,o,s;if(this._events&&(n=this._events[t]))if(1===arguments.length){if(this._firingCount)for(o=0,s=n.length;o<s;o++)n[o].fn=u;delete this._events[t]}else"function"!=typeof e?console.warn("wrong listener type: "+typeof e):!1!==(e=this._listens(t,e,i))&&(i=n[e],this._firingCount&&(i.fn=u,this._events[t]=n=n.slice()),n.splice(e,1))},fire:function(t,e,i){if(this.listens(t,i)){var n=l({},e,{type:t,target:this,sourceTarget:e&&e.sourceTarget||this});if(this._events){var o=this._events[t];if(o){this._firingCount=this._firingCount+1||1;for(var s=0,r=o.length;s<r;s++){var a=o[s],h=a.fn;a.once&&this.off(t,h,a.ctx),h.call(a.ctx||this,n)}this._firingCount--}}i&&this._propagateEvent(n)}return this},listens:function(t,e,i,n){"string"!=typeof t&&console.warn('"string" type argument expected');var o=e,s=("function"!=typeof e&&(n=!!e,i=o=void 0),this._events&&this._events[t]);if(s&&s.length&&!1!==this._listens(t,o,i))return!0;if(n)for(var r in this._eventParents)if(this._eventParents[r].listens(t,e,i,n))return!0;return!1},_listens:function(t,e,i){if(this._events){var n=this._events[t]||[];if(!e)return!!n.length;i===this&&(i=void 0);for(var o=0,s=n.length;o<s;o++)if(n[o].fn===e&&n[o].ctx===i)return o}return!1},once:function(t,e,i){if("object"==typeof t)for(var n in t)this._on(n,t[n],e,!0);else for(var o=0,s=(t=F(t)).length;o<s;o++)this._on(t[o],e,i,!0);return this},addEventParent:function(t){return this._eventParents=this._eventParents||{},this._eventParents[h(t)]=t,this},removeEventParent:function(t){return this._eventParents&&delete this._eventParents[h(t)],this},_propagateEvent:function(t){for(var e in this._eventParents)this._eventParents[e].fire(t.type,l({layer:t.target,propagatedFrom:t.target},t),!0)}},it=(e.addEventListener=e.on,e.removeEventListener=e.clearAllEventListeners=e.off,e.addOneTimeEventListener=e.once,e.fireEvent=e.fire,e.hasEventListeners=e.listens,et.extend(e));function p(t,e,i){this.x=i?Math.round(t):t,this.y=i?Math.round(e):e}var nt=Math.trunc||function(t){return 0<t?Math.floor(t):Math.ceil(t)};function m(t,e,i){return t instanceof p?t:d(t)?new p(t[0],t[1]):null==t?t:"object"==typeof t&&"x"in t&&"y"in t?new p(t.x,t.y):new p(t,e,i)}function f(t,e){if(t)for(var i=e?[t,e]:t,n=0,o=i.length;n<o;n++)this.extend(i[n])}function _(t,e){return!t||t instanceof f?t:new f(t,e)}function s(t,e){if(t)for(var i=e?[t,e]:t,n=0,o=i.length;n<o;n++)this.extend(i[n])}function g(t,e){return t instanceof s?t:new s(t,e)}function v(t,e,i){if(isNaN(t)||isNaN(e))throw new Error("Invalid LatLng object: ("+t+", "+e+")");this.lat=+t,this.lng=+e,void 0!==i&&(this.alt=+i)}function w(t,e,i){return t instanceof v?t:d(t)&&"object"!=typeof t[0]?3===t.length?new v(t[0],t[1],t[2]):2===t.length?new v(t[0],t[1]):null:null==t?t:"object"==typeof t&&"lat"in t?new v(t.lat,"lng"in t?t.lng:t.lon,t.alt):void 0===e?null:new v(t,e,i)}p.prototype={clone:function(){return new p(this.x,this.y)},add:function(t){return this.clone()._add(m(t))},_add:function(t){return this.x+=t.x,this.y+=t.y,this},subtract:function(t){return this.clone()._subtract(m(t))},_subtract:function(t){return 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Math.sqrt(e*e+t*t)},equals:function(t){return(t=m(t)).x===this.x&&t.y===this.y},contains:function(t){return t=m(t),Math.abs(t.x)<=Math.abs(this.x)&&Math.abs(t.y)<=Math.abs(this.y)},toString:function(){return"Point("+i(this.x)+", "+i(this.y)+")"}},f.prototype={extend:function(t){var e,i;if(t){if(t instanceof p||"number"==typeof t[0]||"x"in t)e=i=m(t);else if(e=(t=_(t)).min,i=t.max,!e||!i)return this;this.min||this.max?(this.min.x=Math.min(e.x,this.min.x),this.max.x=Math.max(i.x,this.max.x),this.min.y=Math.min(e.y,this.min.y),this.max.y=Math.max(i.y,this.max.y)):(this.min=e.clone(),this.max=i.clone())}return this},getCenter:function(t){return m((this.min.x+this.max.x)/2,(this.min.y+this.max.y)/2,t)},getBottomLeft:function(){return m(this.min.x,this.max.y)},getTopRight:function(){return m(this.max.x,this.min.y)},getTopLeft:function(){return this.min},getBottomRight:function(){return this.max},getSize:function(){return this.max.subtract(this.min)},contains:function(t){var e,i;return(t=("number"==typeof t[0]||t instanceof p?m:_)(t))instanceof f?(e=t.min,i=t.max):e=i=t,e.x>=this.min.x&&i.x<=this.max.x&&e.y>=this.min.y&&i.y<=this.max.y},intersects:function(t){t=_(t);var e=this.min,i=this.max,n=t.min,t=t.max,o=t.x>=e.x&&n.x<=i.x,t=t.y>=e.y&&n.y<=i.y;return o&&t},overlaps:function(t){t=_(t);var e=this.min,i=this.max,n=t.min,t=t.max,o=t.x>e.x&&n.x<i.x,t=t.y>e.y&&n.y<i.y;return o&&t},isValid:function(){return!(!this.min||!this.max)},pad:function(t){var e=this.min,i=this.max,n=Math.abs(e.x-i.x)*t,t=Math.abs(e.y-i.y)*t;return _(m(e.x-n,e.y-t),m(i.x+n,i.y+t))},equals:function(t){return!!t&&(t=_(t),this.min.equals(t.getTopLeft())&&this.max.equals(t.getBottomRight()))}},s.prototype={extend:function(t){var e,i,n=this._southWest,o=this._northEast;if(t instanceof v)i=e=t;else{if(!(t instanceof s))return t?this.extend(w(t)||g(t)):this;if(e=t._southWest,i=t._northEast,!e||!i)return this}return n||o?(n.lat=Math.min(e.lat,n.lat),n.lng=Math.min(e.lng,n.lng),o.lat=Math.max(i.lat,o.lat),o.lng=Math.max(i.lng,o.lng)):(this._southWest=new v(e.lat,e.lng),this._northEast=new v(i.lat,i.lng)),this},pad:function(t){var e=this._southWest,i=this._northEast,n=Math.abs(e.lat-i.lat)*t,t=Math.abs(e.lng-i.lng)*t;return new s(new v(e.lat-n,e.lng-t),new v(i.lat+n,i.lng+t))},getCenter:function(){return new v((this._southWest.lat+this._northEast.lat)/2,(this._southWest.lng+this._northEast.lng)/2)},getSouthWest:function(){return this._southWest},getNorthEast:function(){return this._northEast},getNorthWest:function(){return new v(this.getNorth(),this.getWest())},getSouthEast:function(){return new v(this.getSouth(),this.getEast())},getWest:function(){return this._southWest.lng},getSouth:function(){return this._southWest.lat},getEast:function(){return this._northEast.lng},getNorth:function(){return this._northEast.lat},contains:function(t){t=("number"==typeof t[0]||t instanceof v||"lat"in t?w:g)(t);var 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t=t||(b.any3d?this.options.zoomDelta:1),this.setZoom(this._zoom+t,e)},zoomOut:function(t,e){return t=t||(b.any3d?this.options.zoomDelta:1),this.setZoom(this._zoom-t,e)},setZoomAround:function(t,e,i){var n=this.getZoomScale(e),o=this.getSize().divideBy(2),t=(t instanceof p?t:this.latLngToContainerPoint(t)).subtract(o).multiplyBy(1-1/n),n=this.containerPointToLatLng(o.add(t));return this.setView(n,e,{zoom:i})},_getBoundsCenterZoom:function(t,e){e=e||{},t=t.getBounds?t.getBounds():g(t);var i=m(e.paddingTopLeft||e.padding||[0,0]),n=m(e.paddingBottomRight||e.padding||[0,0]),o=this.getBoundsZoom(t,!1,i.add(n));return(o="number"==typeof e.maxZoom?Math.min(e.maxZoom,o):o)===1/0?{center:t.getCenter(),zoom:o}:(e=n.subtract(i).divideBy(2),n=this.project(t.getSouthWest(),o),i=this.project(t.getNorthEast(),o),{center:this.unproject(n.add(i).divideBy(2).add(e),o),zoom:o})},fitBounds:function(t,e){if((t=g(t)).isValid())return t=this._getBoundsCenterZoom(t,e),this.setView(t.center,t.zoom,e);throw new Error("Bounds are not valid.")},fitWorld:function(t){return this.fitBounds([[-90,-180],[90,180]],t)},panTo:function(t,e){return this.setView(t,this._zoom,{pan:e})},panBy:function(t,e){var i;return e=e||{},(t=m(t).round()).x||t.y?(!0===e.animate||this.getSize().contains(t)?(this._panAnim||(this._panAnim=new Fe,this._panAnim.on({step:this._onPanTransitionStep,end:this._onPanTransitionEnd},this)),e.noMoveStart||this.fire("movestart"),!1!==e.animate?(M(this._mapPane,"leaflet-pan-anim"),i=this._getMapPanePos().subtract(t).round(),this._panAnim.run(this._mapPane,i,e.duration||.25,e.easeLinearity)):(this._rawPanBy(t),this.fire("move").fire("moveend"))):this._resetView(this.unproject(this.project(this.getCenter()).add(t)),this.getZoom()),this):this.fire("moveend")},flyTo:function(n,o,t){if(!1===(t=t||{}).animate||!b.any3d)return this.setView(n,o,t);this._stop();var s=this.project(this.getCenter()),r=this.project(n),e=this.getSize(),a=this._zoom,h=(n=w(n),o=void 0===o?a:o,Math.max(e.x,e.y)),i=h*this.getZoomScale(a,o),l=r.distanceTo(s)||1,u=1.42,c=u*u;function d(t){t=(i*i-h*h+(t?-1:1)*c*c*l*l)/(2*(t?i:h)*c*l),t=Math.sqrt(t*t+1)-t;return t<1e-9?-18:Math.log(t)}function _(t){return(Math.exp(t)-Math.exp(-t))/2}function p(t){return(Math.exp(t)+Math.exp(-t))/2}var m=d(0);function f(t){return h*(p(m)*(_(t=m+u*t)/p(t))-_(m))/c}var g=Date.now(),v=(d(1)-m)/u,y=t.duration?1e3*t.duration:1e3*v*.8;return this._moveStart(!0,t.noMoveStart),function t(){var e=(Date.now()-g)/y,i=(1-Math.pow(1-e,1.5))*v;e<=1?(this._flyToFrame=x(t,this),this._move(this.unproject(s.add(r.subtract(s).multiplyBy(f(i)/l)),a),this.getScaleZoom(h/(e=i,h*(p(m)/p(m+u*e))),a),{flyTo:!0})):this._move(n,o)._moveEnd(!0)}.call(this),this},flyToBounds:function(t,e){t=this._getBoundsCenterZoom(t,e);return this.flyTo(t.center,t.zoom,e)},setMaxBounds:function(t){return t=g(t),this.listens("moveend",this._panInsideMaxBounds)&&this.off("moveend",this._panInsideMaxBounds),t.isValid()?(this.options.maxBounds=t,this._loaded&&this._panInsideMaxBounds(),this.on("moveend",this._panInsideMaxBounds)):(this.options.maxBounds=null,this)},setMinZoom:function(t){var e=this.options.minZoom;return this.options.minZoom=t,this._loaded&&e!==t&&(this.fire("zoomlevelschange"),this.getZoom()<this.options.minZoom)?this.setZoom(t):this},setMaxZoom:function(t){var e=this.options.maxZoom;return this.options.maxZoom=t,this._loaded&&e!==t&&(this.fire("zoomlevelschange"),this.getZoom()>this.options.maxZoom)?this.setZoom(t):this},panInsideBounds:function(t,e){this._enforcingBounds=!0;var i=this.getCenter(),t=this._limitCenter(i,this._zoom,g(t));return i.equals(t)||this.panTo(t,e),this._enforcingBounds=!1,this},panInside:function(t,e){var i=m((e=e||{}).paddingTopLeft||e.padding||[0,0]),n=m(e.paddingBottomRight||e.padding||[0,0]),o=this.project(this.getCenter()),t=this.project(t),s=this.getPixelBounds(),i=_([s.min.add(i),s.max.subtract(n)]),s=i.getSize();return i.contains(t)||(this._enforcingBounds=!0,n=t.subtract(i.getCenter()),i=i.extend(t).getSize().subtract(s),o.x+=n.x<0?-i.x:i.x,o.y+=n.y<0?-i.y:i.y,this.panTo(this.unproject(o),e),this._enforcingBounds=!1),this},invalidateSize:function(t){if(!this._loaded)return this;t=l({animate:!1,pan:!0},!0===t?{animate:!0}:t);var e=this.getSize(),i=(this._sizeChanged=!0,this._lastCenter=null,this.getSize()),n=e.divideBy(2).round(),o=i.divideBy(2).round(),n=n.subtract(o);return n.x||n.y?(t.animate&&t.pan?this.panBy(n):(t.pan&&this._rawPanBy(n),this.fire("move"),t.debounceMoveend?(clearTimeout(this._sizeTimer),this._sizeTimer=setTimeout(a(this.fire,this,"moveend"),200)):this.fire("moveend")),this.fire("resize",{oldSize:e,newSize:i})):this},stop:function(){return this.setZoom(this._limitZoom(this._zoom)),this.options.zoomSnap||this.fire("viewreset"),this._stop()},locate:function(t){var e,i;return t=this._locateOptions=l({timeout:1e4,watch:!1},t),"geolocation"in navigator?(e=a(this._handleGeolocationResponse,this),i=a(this._handleGeolocationError,this),t.watch?this._locationWatchId=navigator.geolocation.watchPosition(e,i,t):navigator.geolocation.getCurrentPosition(e,i,t)):this._handleGeolocationError({code:0,message:"Geolocation not supported."}),this},stopLocate:function(){return navigator.geolocation&&navigator.geolocation.clearWatch&&navigator.geolocation.clearWatch(this._locationWatchId),this._locateOptions&&(this._locateOptions.setView=!1),this},_handleGeolocationError:function(t){var e;this._container._leaflet_id&&(e=t.code,t=t.message||(1===e?"permission denied":2===e?"position unavailable":"timeout"),this._locateOptions.setView&&!this._loaded&&this.fitWorld(),this.fire("locationerror",{code:e,message:"Geolocation error: "+t+"."}))},_handleGeolocationResponse:function(t){if(this._container._leaflet_id){var e,i,n=new v(t.coords.latitude,t.coords.longitude),o=n.toBounds(2*t.coords.accuracy),s=this._locateOptions,r=(s.setView&&(e=this.getBoundsZoom(o),this.setView(n,s.maxZoom?Math.min(e,s.maxZoom):e)),{latlng:n,bounds:o,timestamp:t.timestamp});for(i in t.coords)"number"==typeof t.coords[i]&&(r[i]=t.coords[i]);this.fire("locationfound",r)}},addHandler:function(t,e){return e&&(e=this[t]=new e(this),this._handlers.push(e),this.options[t]&&e.enable()),this},remove:function(){if(this._initEvents(!0),this.options.maxBounds&&this.off("moveend",this._panInsideMaxBounds),this._containerId!==this._container._leaflet_id)throw new Error("Map container is being reused by another instance");try{delete this._container._leaflet_id,delete this._containerId}catch(t){this._container._leaflet_id=void 0,this._containerId=void 0}for(var t in void 0!==this._locationWatchId&&this.stopLocate(),this._stop(),T(this._mapPane),this._clearControlPos&&this._clearControlPos(),this._resizeRequest&&(r(this._resizeRequest),this._resizeRequest=null),this._clearHandlers(),this._loaded&&this.fire("unload"),this._layers)this._layers[t].remove();for(t in this._panes)T(this._panes[t]);return this._layers=[],this._panes=[],delete this._mapPane,delete this._renderer,this},createPane:function(t,e){e=P("div","leaflet-pane"+(t?" leaflet-"+t.replace("Pane","")+"-pane":""),e||this._mapPane);return t&&(this._panes[t]=e),e},getCenter:function(){return this._checkIfLoaded(),this._lastCenter&&!this._moved()?this._lastCenter.clone():this.layerPointToLatLng(this._getCenterLayerPoint())},getZoom:function(){return this._zoom},getBounds:function(){var t=this.getPixelBounds();return new s(this.unproject(t.getBottomLeft()),this.unproject(t.getTopRight()))},getMinZoom:function(){return void 0===this.options.minZoom?this._layersMinZoom||0:this.options.minZoom},getMaxZoom:function(){return void 0===this.options.maxZoom?void 0===this._layersMaxZoom?1/0:this._layersMaxZoom:this.options.maxZoom},getBoundsZoom:function(t,e,i){t=g(t),i=m(i||[0,0]);var n=this.getZoom()||0,o=this.getMinZoom(),s=this.getMaxZoom(),r=t.getNorthWest(),t=t.getSouthEast(),i=this.getSize().subtract(i),t=_(this.project(t,n),this.project(r,n)).getSize(),r=b.any3d?this.options.zoomSnap:1,a=i.x/t.x,i=i.y/t.y,t=e?Math.max(a,i):Math.min(a,i),n=this.getScaleZoom(t,n);return r&&(n=Math.round(n/(r/100))*(r/100),n=e?Math.ceil(n/r)*r:Math.floor(n/r)*r),Math.max(o,Math.min(s,n))},getSize:function(){return this._size&&!this._sizeChanged||(this._size=new p(this._container.clientWidth||0,this._container.clientHeight||0),this._sizeChanged=!1),this._size.clone()},getPixelBounds:function(t,e){t=this._getTopLeftPoint(t,e);return new f(t,t.add(this.getSize()))},getPixelOrigin:function(){return this._checkIfLoaded(),this._pixelOrigin},getPixelWorldBounds:function(t){return this.options.crs.getProjectedBounds(void 0===t?this.getZoom():t)},getPane:function(t){return"string"==typeof t?this._panes[t]:t},getPanes:function(){return this._panes},getContainer:function(){return this._container},getZoomScale:function(t,e){var i=this.options.crs;return e=void 0===e?this._zoom:e,i.scale(t)/i.scale(e)},getScaleZoom:function(t,e){var i=this.options.crs,t=(e=void 0===e?this._zoom:e,i.zoom(t*i.scale(e)));return isNaN(t)?1/0:t},project:function(t,e){return e=void 0===e?this._zoom:e,this.options.crs.latLngToPoint(w(t),e)},unproject:function(t,e){return e=void 0===e?this._zoom:e,this.options.crs.pointToLatLng(m(t),e)},layerPointToLatLng:function(t){t=m(t).add(this.getPixelOrigin());return this.unproject(t)},latLngToLayerPoint:function(t){return this.project(w(t))._round()._subtract(this.getPixelOrigin())},wrapLatLng:function(t){return this.options.crs.wrapLatLng(w(t))},wrapLatLngBounds:function(t){return this.options.crs.wrapLatLngBounds(g(t))},distance:function(t,e){return this.options.crs.distance(w(t),w(e))},containerPointToLayerPoint:function(t){return m(t).subtract(this._getMapPanePos())},layerPointToContainerPoint:function(t){return m(t).add(this._getMapPanePos())},containerPointToLatLng:function(t){t=this.containerPointToLayerPoint(m(t));return this.layerPointToLatLng(t)},latLngToContainerPoint:function(t){return this.layerPointToContainerPoint(this.latLngToLayerPoint(w(t)))},mouseEventToContainerPoint:function(t){return De(t,this._container)},mouseEventToLayerPoint:function(t){return this.containerPointToLayerPoint(this.mouseEventToContainerPoint(t))},mouseEventToLatLng:function(t){return this.layerPointToLatLng(this.mouseEventToLayerPoint(t))},_initContainer:function(t){t=this._container=_e(t);if(!t)throw new Error("Map container not found.");if(t._leaflet_id)throw new Error("Map container is already initialized.");S(t,"scroll",this._onScroll,this),this._containerId=h(t)},_initLayout:function(){var t=this._container,e=(this._fadeAnimated=this.options.fadeAnimation&&b.any3d,M(t,"leaflet-container"+(b.touch?" leaflet-touch":"")+(b.retina?" leaflet-retina":"")+(b.ielt9?" leaflet-oldie":"")+(b.safari?" leaflet-safari":"")+(this._fadeAnimated?" leaflet-fade-anim":"")),pe(t,"position"));"absolute"!==e&&"relative"!==e&&"fixed"!==e&&"sticky"!==e&&(t.style.position="relative"),this._initPanes(),this._initControlPos&&this._initControlPos()},_initPanes:function(){var t=this._panes={};this._paneRenderers={},this._mapPane=this.createPane("mapPane",this._container),Z(this._mapPane,new p(0,0)),this.createPane("tilePane"),this.createPane("overlayPane"),this.createPane("shadowPane"),this.createPane("markerPane"),this.createPane("tooltipPane"),this.createPane("popupPane"),this.options.markerZoomAnimation||(M(t.markerPane,"leaflet-zoom-hide"),M(t.shadowPane,"leaflet-zoom-hide"))},_resetView:function(t,e,i){Z(this._mapPane,new p(0,0));var n=!this._loaded,o=(this._loaded=!0,e=this._limitZoom(e),this.fire("viewprereset"),this._zoom!==e);this._moveStart(o,i)._move(t,e)._moveEnd(o),this.fire("viewreset"),n&&this.fire("load")},_moveStart:function(t,e){return t&&this.fire("zoomstart"),e||this.fire("movestart"),this},_move:function(t,e,i,n){void 0===e&&(e=this._zoom);var o=this._zoom!==e;return this._zoom=e,this._lastCenter=t,this._pixelOrigin=this._getNewPixelOrigin(t),n?i&&i.pinch&&this.fire("zoom",i):((o||i&&i.pinch)&&this.fire("zoom",i),this.fire("move",i)),this},_moveEnd:function(t){return t&&this.fire("zoomend"),this.fire("moveend")},_stop:function(){return r(this._flyToFrame),this._panAnim&&this._panAnim.stop(),this},_rawPanBy:function(t){Z(this._mapPane,this._getMapPanePos().subtract(t))},_getZoomSpan:function(){return this.getMaxZoom()-this.getMinZoom()},_panInsideMaxBounds:function(){this._enforcingBounds||this.panInsideBounds(this.options.maxBounds)},_checkIfLoaded:function(){if(!this._loaded)throw new Error("Set map center and zoom first.")},_initEvents:function(t){this._targets={};var e=t?k:S;e((this._targets[h(this._container)]=this)._container,"click dblclick mousedown mouseup mouseover mouseout mousemove contextmenu keypress keydown keyup",this._handleDOMEvent,this),this.options.trackResize&&e(window,"resize",this._onResize,this),b.any3d&&this.options.transform3DLimit&&(t?this.off:this.on).call(this,"moveend",this._onMoveEnd)},_onResize:function(){r(this._resizeRequest),this._resizeRequest=x(function(){this.invalidateSize({debounceMoveend:!0})},this)},_onScroll:function(){this._container.scrollTop=0,this._container.scrollLeft=0},_onMoveEnd:function(){var t=this._getMapPanePos();Math.max(Math.abs(t.x),Math.abs(t.y))>=this.options.transform3DLimit&&this._resetView(this.getCenter(),this.getZoom())},_findEventTargets:function(t,e){for(var i,n=[],o="mouseout"===e||"mouseover"===e,s=t.target||t.srcElement,r=!1;s;){if((i=this._targets[h(s)])&&("click"===e||"preclick"===e)&&this._draggableMoved(i)){r=!0;break}if(i&&i.listens(e,!0)){if(o&&!We(s,t))break;if(n.push(i),o)break}if(s===this._container)break;s=s.parentNode}return n=n.length||r||o||!this.listens(e,!0)?n:[this]},_isClickDisabled:function(t){for(;t&&t!==this._container;){if(t._leaflet_disable_click)return!0;t=t.parentNode}},_handleDOMEvent:function(t){var e,i=t.target||t.srcElement;!this._loaded||i._leaflet_disable_events||"click"===t.type&&this._isClickDisabled(i)||("mousedown"===(e=t.type)&&Me(i),this._fireDOMEvent(t,e))},_mouseEvents:["click","dblclick","mouseover","mouseout","contextmenu"],_fireDOMEvent:function(t,e,i){"click"===t.type&&((a=l({},t)).type="preclick",this._fireDOMEvent(a,a.type,i));var n=this._findEventTargets(t,e);if(i){for(var o=[],s=0;s<i.length;s++)i[s].listens(e,!0)&&o.push(i[s]);n=o.concat(n)}if(n.length){"contextmenu"===e&&O(t);var r,a=n[0],h={originalEvent:t};for("keypress"!==t.type&&"keydown"!==t.type&&"keyup"!==t.type&&(r=a.getLatLng&&(!a._radius||a._radius<=10),h.containerPoint=r?this.latLngToContainerPoint(a.getLatLng()):this.mouseEventToContainerPoint(t),h.layerPoint=this.containerPointToLayerPoint(h.containerPoint),h.latlng=r?a.getLatLng():this.layerPointToLatLng(h.layerPoint)),s=0;s<n.length;s++)if(n[s].fire(e,h,!0),h.originalEvent._stopped||!1===n[s].options.bubblingMouseEvents&&-1!==G(this._mouseEvents,e))return}},_draggableMoved:function(t){return(t=t.dragging&&t.dragging.enabled()?t:this).dragging&&t.dragging.moved()||this.boxZoom&&this.boxZoom.moved()},_clearHandlers:function(){for(var t=0,e=this._handlers.length;t<e;t++)this._handlers[t].disable()},whenReady:function(t,e){return this._loaded?t.call(e||this,{target:this}):this.on("load",t,e),this},_getMapPanePos:function(){return Pe(this._mapPane)||new p(0,0)},_moved:function(){var t=this._getMapPanePos();return t&&!t.equals([0,0])},_getTopLeftPoint:function(t,e){return(t&&void 0!==e?this._getNewPixelOrigin(t,e):this.getPixelOrigin()).subtract(this._getMapPanePos())},_getNewPixelOrigin:function(t,e){var i=this.getSize()._divideBy(2);return this.project(t,e)._subtract(i)._add(this._getMapPanePos())._round()},_latLngToNewLayerPoint:function(t,e,i){i=this._getNewPixelOrigin(i,e);return this.project(t,e)._subtract(i)},_latLngBoundsToNewLayerBounds:function(t,e,i){i=this._getNewPixelOrigin(i,e);return _([this.project(t.getSouthWest(),e)._subtract(i),this.project(t.getNorthWest(),e)._subtract(i),this.project(t.getSouthEast(),e)._subtract(i),this.project(t.getNorthEast(),e)._subtract(i)])},_getCenterLayerPoint:function(){return this.containerPointToLayerPoint(this.getSize()._divideBy(2))},_getCenterOffset:function(t){return this.latLngToLayerPoint(t).subtract(this._getCenterLayerPoint())},_limitCenter:function(t,e,i){var n,o;return!i||(n=this.project(t,e),o=this.getSize().divideBy(2),o=new f(n.subtract(o),n.add(o)),o=this._getBoundsOffset(o,i,e),Math.abs(o.x)<=1&&Math.abs(o.y)<=1)?t:this.unproject(n.add(o),e)},_limitOffset:function(t,e){var i;return e?(i=new f((i=this.getPixelBounds()).min.add(t),i.max.add(t)),t.add(this._getBoundsOffset(i,e))):t},_getBoundsOffset:function(t,e,i){e=_(this.project(e.getNorthEast(),i),this.project(e.getSouthWest(),i)),i=e.min.subtract(t.min),e=e.max.subtract(t.max);return new p(this._rebound(i.x,-e.x),this._rebound(i.y,-e.y))},_rebound:function(t,e){return 0<t+e?Math.round(t-e)/2:Math.max(0,Math.ceil(t))-Math.max(0,Math.floor(e))},_limitZoom:function(t){var e=this.getMinZoom(),i=this.getMaxZoom(),n=b.any3d?this.options.zoomSnap:1;return n&&(t=Math.round(t/n)*n),Math.max(e,Math.min(i,t))},_onPanTransitionStep:function(){this.fire("move")},_onPanTransitionEnd:function(){z(this._mapPane,"leaflet-pan-anim"),this.fire("moveend")},_tryAnimatedPan:function(t,e){t=this._getCenterOffset(t)._trunc();return!(!0!==(e&&e.animate)&&!this.getSize().contains(t))&&(this.panBy(t,e),!0)},_createAnimProxy:function(){var t=this._proxy=P("div","leaflet-proxy leaflet-zoom-animated");this._panes.mapPane.appendChild(t),this.on("zoomanim",function(t){var e=ue,i=this._proxy.style[e];be(this._proxy,this.project(t.center,t.zoom),this.getZoomScale(t.zoom,1)),i===this._proxy.style[e]&&this._animatingZoom&&this._onZoomTransitionEnd()},this),this.on("load moveend",this._animMoveEnd,this),this._on("unload",this._destroyAnimProxy,this)},_destroyAnimProxy:function(){T(this._proxy),this.off("load moveend",this._animMoveEnd,this),delete this._proxy},_animMoveEnd:function(){var t=this.getCenter(),e=this.getZoom();be(this._proxy,this.project(t,e),this.getZoomScale(e,1))},_catchTransitionEnd:function(t){this._animatingZoom&&0<=t.propertyName.indexOf("transform")&&this._onZoomTransitionEnd()},_nothingToAnimate:function(){return!this._container.getElementsByClassName("leaflet-zoom-animated").length},_tryAnimatedZoom:function(t,e,i){if(!this._animatingZoom){if(i=i||{},!this._zoomAnimated||!1===i.animate||this._nothingToAnimate()||Math.abs(e-this._zoom)>this.options.zoomAnimationThreshold)return!1;var n=this.getZoomScale(e),n=this._getCenterOffset(t)._divideBy(1-1/n);if(!0!==i.animate&&!this.getSize().contains(n))return!1;x(function(){this._moveStart(!0,i.noMoveStart||!1)._animateZoom(t,e,!0)},this)}return!0},_animateZoom:function(t,e,i,n){this._mapPane&&(i&&(this._animatingZoom=!0,this._animateToCenter=t,this._animateToZoom=e,M(this._mapPane,"leaflet-zoom-anim")),this.fire("zoomanim",{center:t,zoom:e,noUpdate:n}),this._tempFireZoomEvent||(this._tempFireZoomEvent=this._zoom!==this._animateToZoom),this._move(this._animateToCenter,this._animateToZoom,void 0,!0),setTimeout(a(this._onZoomTransitionEnd,this),250))},_onZoomTransitionEnd:function(){this._animatingZoom&&(this._mapPane&&z(this._mapPane,"leaflet-zoom-anim"),this._animatingZoom=!1,this._move(this._animateToCenter,this._animateToZoom,void 0,!0),this._tempFireZoomEvent&&this.fire("zoom"),delete this._tempFireZoomEvent,this.fire("move"),this._moveEnd(!0))}});function Ue(t){return new B(t)}var B=et.extend({options:{position:"topright"},initialize:function(t){c(this,t)},getPosition:function(){return this.options.position},setPosition:function(t){var e=this._map;return e&&e.removeControl(this),this.options.position=t,e&&e.addControl(this),this},getContainer:function(){return this._container},addTo:function(t){this.remove(),this._map=t;var e=this._container=this.onAdd(t),i=this.getPosition(),t=t._controlCorners[i];return M(e,"leaflet-control"),-1!==i.indexOf("bottom")?t.insertBefore(e,t.firstChild):t.appendChild(e),this._map.on("unload",this.remove,this),this},remove:function(){return this._map&&(T(this._container),this.onRemove&&this.onRemove(this._map),this._map.off("unload",this.remove,this),this._map=null),this},_refocusOnMap:function(t){this._map&&t&&0<t.screenX&&0<t.screenY&&this._map.getContainer().focus()}}),Ve=(A.include({addControl:function(t){return t.addTo(this),this},removeControl:function(t){return t.remove(),this},_initControlPos:function(){var i=this._controlCorners={},n="leaflet-",o=this._controlContainer=P("div",n+"control-container",this._container);function t(t,e){i[t+e]=P("div",n+t+" "+n+e,o)}t("top","left"),t("top","right"),t("bottom","left"),t("bottom","right")},_clearControlPos:function(){for(var t in this._controlCorners)T(this._controlCorners[t]);T(this._controlContainer),delete this._controlCorners,delete this._controlContainer}}),B.extend({options:{collapsed:!0,position:"topright",autoZIndex:!0,hideSingleBase:!1,sortLayers:!1,sortFunction:function(t,e,i,n){return i<n?-1:n<i?1:0}},initialize:function(t,e,i){for(var n in c(this,i),this._layerControlInputs=[],this._layers=[],this._lastZIndex=0,this._handlingClick=!1,this._preventClick=!1,t)this._addLayer(t[n],n);for(n in e)this._addLayer(e[n],n,!0)},onAdd:function(t){this._initLayout(),this._update(),(this._map=t).on("zoomend",this._checkDisabledLayers,this);for(var e=0;e<this._layers.length;e++)this._layers[e].layer.on("add remove",this._onLayerChange,this);return this._container},addTo:function(t){return B.prototype.addTo.call(this,t),this._expandIfNotCollapsed()},onRemove:function(){this._map.off("zoomend",this._checkDisabledLayers,this);for(var t=0;t<this._layers.length;t++)this._layers[t].layer.off("add remove",this._onLayerChange,this)},addBaseLayer:function(t,e){return this._addLayer(t,e),this._map?this._update():this},addOverlay:function(t,e){return this._addLayer(t,e,!0),this._map?this._update():this},removeLayer:function(t){t.off("add remove",this._onLayerChange,this);t=this._getLayer(h(t));return t&&this._layers.splice(this._layers.indexOf(t),1),this._map?this._update():this},expand:function(){M(this._container,"leaflet-control-layers-expanded"),this._section.style.height=null;var t=this._map.getSize().y-(this._container.offsetTop+50);return t<this._section.clientHeight?(M(this._section,"leaflet-control-layers-scrollbar"),this._section.style.height=t+"px"):z(this._section,"leaflet-control-layers-scrollbar"),this._checkDisabledLayers(),this},collapse:function(){return z(this._container,"leaflet-control-layers-expanded"),this},_initLayout:function(){var t="leaflet-control-layers",e=this._container=P("div",t),i=this.options.collapsed,n=(e.setAttribute("aria-haspopup",!0),Ie(e),Be(e),this._section=P("section",t+"-list")),o=(i&&(this._map.on("click",this.collapse,this),S(e,{mouseenter:this._expandSafely,mouseleave:this.collapse},this)),this._layersLink=P("a",t+"-toggle",e));o.href="#",o.title="Layers",o.setAttribute("role","button"),S(o,{keydown:function(t){13===t.keyCode&&this._expandSafely()},click:function(t){O(t),this._expandSafely()}},this),i||this.expand(),this._baseLayersList=P("div",t+"-base",n),this._separator=P("div",t+"-separator",n),this._overlaysList=P("div",t+"-overlays",n),e.appendChild(n)},_getLayer:function(t){for(var e=0;e<this._layers.length;e++)if(this._layers[e]&&h(this._layers[e].layer)===t)return this._layers[e]},_addLayer:function(t,e,i){this._map&&t.on("add remove",this._onLayerChange,this),this._layers.push({layer:t,name:e,overlay:i}),this.options.sortLayers&&this._layers.sort(a(function(t,e){return this.options.sortFunction(t.layer,e.layer,t.name,e.name)},this)),this.options.autoZIndex&&t.setZIndex&&(this._lastZIndex++,t.setZIndex(this._lastZIndex)),this._expandIfNotCollapsed()},_update:function(){if(this._container){me(this._baseLayersList),me(this._overlaysList),this._layerControlInputs=[];for(var t,e,i,n=0,o=0;o<this._layers.length;o++)i=this._layers[o],this._addItem(i),e=e||i.overlay,t=t||!i.overlay,n+=i.overlay?0:1;this.options.hideSingleBase&&(this._baseLayersList.style.display=(t=t&&1<n)?"":"none"),this._separator.style.display=e&&t?"":"none"}return this},_onLayerChange:function(t){this._handlingClick||this._update();var e=this._getLayer(h(t.target)),t=e.overlay?"add"===t.type?"overlayadd":"overlayremove":"add"===t.type?"baselayerchange":null;t&&this._map.fire(t,e)},_createRadioElement:function(t,e){t='<input type="radio" class="leaflet-control-layers-selector" name="'+t+'"'+(e?' checked="checked"':"")+"/>",e=document.createElement("div");return e.innerHTML=t,e.firstChild},_addItem:function(t){var e,i=document.createElement("label"),n=this._map.hasLayer(t.layer),n=(t.overlay?((e=document.createElement("input")).type="checkbox",e.className="leaflet-control-layers-selector",e.defaultChecked=n):e=this._createRadioElement("leaflet-base-layers_"+h(this),n),this._layerControlInputs.push(e),e.layerId=h(t.layer),S(e,"click",this._onInputClick,this),document.createElement("span")),o=(n.innerHTML=" "+t.name,document.createElement("span"));return i.appendChild(o),o.appendChild(e),o.appendChild(n),(t.overlay?this._overlaysList:this._baseLayersList).appendChild(i),this._checkDisabledLayers(),i},_onInputClick:function(){if(!this._preventClick){var t,e,i=this._layerControlInputs,n=[],o=[];this._handlingClick=!0;for(var s=i.length-1;0<=s;s--)t=i[s],e=this._getLayer(t.layerId).layer,t.checked?n.push(e):t.checked||o.push(e);for(s=0;s<o.length;s++)this._map.hasLayer(o[s])&&this._map.removeLayer(o[s]);for(s=0;s<n.length;s++)this._map.hasLayer(n[s])||this._map.addLayer(n[s]);this._handlingClick=!1,this._refocusOnMap()}},_checkDisabledLayers:function(){for(var t,e,i=this._layerControlInputs,n=this._map.getZoom(),o=i.length-1;0<=o;o--)t=i[o],e=this._getLayer(t.layerId).layer,t.disabled=void 0!==e.options.minZoom&&n<e.options.minZoom||void 0!==e.options.maxZoom&&n>e.options.maxZoom},_expandIfNotCollapsed:function(){return this._map&&!this.options.collapsed&&this.expand(),this},_expandSafely:function(){var t=this._section,e=(this._preventClick=!0,S(t,"click",O),this.expand(),this);setTimeout(function(){k(t,"click",O),e._preventClick=!1})}})),qe=B.extend({options:{position:"topleft",zoomInText:'<span aria-hidden="true">+</span>',zoomInTitle:"Zoom in",zoomOutText:'<span aria-hidden="true">&#x2212;</span>',zoomOutTitle:"Zoom out"},onAdd:function(t){var e="leaflet-control-zoom",i=P("div",e+" leaflet-bar"),n=this.options;return this._zoomInButton=this._createButton(n.zoomInText,n.zoomInTitle,e+"-in",i,this._zoomIn),this._zoomOutButton=this._createButton(n.zoomOutText,n.zoomOutTitle,e+"-out",i,this._zoomOut),this._updateDisabled(),t.on("zoomend zoomlevelschange",this._updateDisabled,this),i},onRemove:function(t){t.off("zoomend zoomlevelschange",this._updateDisabled,this)},disable:function(){return this._disabled=!0,this._updateDisabled(),this},enable:function(){return this._disabled=!1,this._updateDisabled(),this},_zoomIn:function(t){!this._disabled&&this._map._zoom<this._map.getMaxZoom()&&this._map.zoomIn(this._map.options.zoomDelta*(t.shiftKey?3:1))},_zoomOut:function(t){!this._disabled&&this._map._zoom>this._map.getMinZoom()&&this._map.zoomOut(this._map.options.zoomDelta*(t.shiftKey?3:1))},_createButton:function(t,e,i,n,o){i=P("a",i,n);return i.innerHTML=t,i.href="#",i.title=e,i.setAttribute("role","button"),i.setAttribute("aria-label",e),Ie(i),S(i,"click",Re),S(i,"click",o,this),S(i,"click",this._refocusOnMap,this),i},_updateDisabled:function(){var t=this._map,e="leaflet-disabled";z(this._zoomInButton,e),z(this._zoomOutButton,e),this._zoomInButton.setAttribute("aria-disabled","false"),this._zoomOutButton.setAttribute("aria-disabled","false"),!this._disabled&&t._zoom!==t.getMinZoom()||(M(this._zoomOutButton,e),this._zoomOutButton.setAttribute("aria-disabled","true")),!this._disabled&&t._zoom!==t.getMaxZoom()||(M(this._zoomInButton,e),this._zoomInButton.setAttribute("aria-disabled","true"))}}),Ge=(A.mergeOptions({zoomControl:!0}),A.addInitHook(function(){this.options.zoomControl&&(this.zoomControl=new qe,this.addControl(this.zoomControl))}),B.extend({options:{position:"bottomleft",maxWidth:100,metric:!0,imperial:!0},onAdd:function(t){var e="leaflet-control-scale",i=P("div",e),n=this.options;return this._addScales(n,e+"-line",i),t.on(n.updateWhenIdle?"moveend":"move",this._update,this),t.whenReady(this._update,this),i},onRemove:function(t){t.off(this.options.updateWhenIdle?"moveend":"move",this._update,this)},_addScales:function(t,e,i){t.metric&&(this._mScale=P("div",e,i)),t.imperial&&(this._iScale=P("div",e,i))},_update:function(){var t=this._map,e=t.getSize().y/2,t=t.distance(t.containerPointToLatLng([0,e]),t.containerPointToLatLng([this.options.maxWidth,e]));this._updateScales(t)},_updateScales:function(t){this.options.metric&&t&&this._updateMetric(t),this.options.imperial&&t&&this._updateImperial(t)},_updateMetric:function(t){var e=this._getRoundNum(t);this._updateScale(this._mScale,e<1e3?e+" m":e/1e3+" km",e/t)},_updateImperial:function(t){var e,i,t=3.2808399*t;5280<t?(i=this._getRoundNum(e=t/5280),this._updateScale(this._iScale,i+" mi",i/e)):(i=this._getRoundNum(t),this._updateScale(this._iScale,i+" ft",i/t))},_updateScale:function(t,e,i){t.style.width=Math.round(this.options.maxWidth*i)+"px",t.innerHTML=e},_getRoundNum:function(t){var e=Math.pow(10,(Math.floor(t)+"").length-1),t=t/e;return e*(t=10<=t?10:5<=t?5:3<=t?3:2<=t?2:1)}})),Ke=B.extend({options:{position:"bottomright",prefix:'<a href="https://leafletjs.com" title="A JavaScript library for interactive maps">'+(b.inlineSvg?'<svg aria-hidden="true" xmlns="http://www.w3.org/2000/svg" width="12" height="8" viewBox="0 0 12 8" class="leaflet-attribution-flag"><path fill="#4C7BE1" d="M0 0h12v4H0z"/><path fill="#FFD500" d="M0 4h12v3H0z"/><path fill="#E0BC00" d="M0 7h12v1H0z"/></svg> ':"")+"Leaflet</a>"},initialize:function(t){c(this,t),this._attributions={}},onAdd:function(t){for(var e in(t.attributionControl=this)._container=P("div","leaflet-control-attribution"),Ie(this._container),t._layers)t._layers[e].getAttribution&&this.addAttribution(t._layers[e].getAttribution());return this._update(),t.on("layeradd",this._addAttribution,this),this._container},onRemove:function(t){t.off("layeradd",this._addAttribution,this)},_addAttribution:function(t){t.layer.getAttribution&&(this.addAttribution(t.layer.getAttribution()),t.layer.once("remove",function(){this.removeAttribution(t.layer.getAttribution())},this))},setPrefix:function(t){return this.options.prefix=t,this._update(),this},addAttribution:function(t){return t&&(this._attributions[t]||(this._attributions[t]=0),this._attributions[t]++,this._update()),this},removeAttribution:function(t){return t&&this._attributions[t]&&(this._attributions[t]--,this._update()),this},_update:function(){if(this._map){var t,e=[];for(t in this._attributions)this._attributions[t]&&e.push(t);var i=[];this.options.prefix&&i.push(this.options.prefix),e.length&&i.push(e.join(", ")),this._container.innerHTML=i.join(' <span aria-hidden="true">|</span> ')}}}),n=(A.mergeOptions({attributionControl:!0}),A.addInitHook(function(){this.options.attributionControl&&(new Ke).addTo(this)}),B.Layers=Ve,B.Zoom=qe,B.Scale=Ge,B.Attribution=Ke,Ue.layers=function(t,e,i){return new Ve(t,e,i)},Ue.zoom=function(t){return new qe(t)},Ue.scale=function(t){return new Ge(t)},Ue.attribution=function(t){return new Ke(t)},et.extend({initialize:function(t){this._map=t},enable:function(){return this._enabled||(this._enabled=!0,this.addHooks()),this},disable:function(){return this._enabled&&(this._enabled=!1,this.removeHooks()),this},enabled:function(){return!!this._enabled}})),ft=(n.addTo=function(t,e){return t.addHandler(e,this),this},{Events:e}),Ye=b.touch?"touchstart mousedown":"mousedown",Xe=it.extend({options:{clickTolerance:3},initialize:function(t,e,i,n){c(this,n),this._element=t,this._dragStartTarget=e||t,this._preventOutline=i},enable:function(){this._enabled||(S(this._dragStartTarget,Ye,this._onDown,this),this._enabled=!0)},disable:function(){this._enabled&&(Xe._dragging===this&&this.finishDrag(!0),k(this._dragStartTarget,Ye,this._onDown,this),this._enabled=!1,this._moved=!1)},_onDown:function(t){var e,i;this._enabled&&(this._moved=!1,ve(this._element,"leaflet-zoom-anim")||(t.touches&&1!==t.touches.length?Xe._dragging===this&&this.finishDrag():Xe._dragging||t.shiftKey||1!==t.which&&1!==t.button&&!t.touches||((Xe._dragging=this)._preventOutline&&Me(this._element),Le(),re(),this._moving||(this.fire("down"),i=t.touches?t.touches[0]:t,e=Ce(this._element),this._startPoint=new p(i.clientX,i.clientY),this._startPos=Pe(this._element),this._parentScale=Ze(e),i="mousedown"===t.type,S(document,i?"mousemove":"touchmove",this._onMove,this),S(document,i?"mouseup":"touchend touchcancel",this._onUp,this)))))},_onMove:function(t){var e;this._enabled&&(t.touches&&1<t.touches.length?this._moved=!0:!(e=new p((e=t.touches&&1===t.touches.length?t.touches[0]:t).clientX,e.clientY)._subtract(this._startPoint)).x&&!e.y||Math.abs(e.x)+Math.abs(e.y)<this.options.clickTolerance||(e.x/=this._parentScale.x,e.y/=this._parentScale.y,O(t),this._moved||(this.fire("dragstart"),this._moved=!0,M(document.body,"leaflet-dragging"),this._lastTarget=t.target||t.srcElement,window.SVGElementInstance&&this._lastTarget instanceof window.SVGElementInstance&&(this._lastTarget=this._lastTarget.correspondingUseElement),M(this._lastTarget,"leaflet-drag-target")),this._newPos=this._startPos.add(e),this._moving=!0,this._lastEvent=t,this._updatePosition()))},_updatePosition:function(){var t={originalEvent:this._lastEvent};this.fire("predrag",t),Z(this._element,this._newPos),this.fire("drag",t)},_onUp:function(){this._enabled&&this.finishDrag()},finishDrag:function(t){z(document.body,"leaflet-dragging"),this._lastTarget&&(z(this._lastTarget,"leaflet-drag-target"),this._lastTarget=null),k(document,"mousemove touchmove",this._onMove,this),k(document,"mouseup touchend touchcancel",this._onUp,this),Te(),ae();var e=this._moved&&this._moving;this._moving=!1,Xe._dragging=!1,e&&this.fire("dragend",{noInertia:t,distance:this._newPos.distanceTo(this._startPos)})}});function Je(t,e,i){for(var n,o,s,r,a,h,l,u=[1,4,2,8],c=0,d=t.length;c<d;c++)t[c]._code=si(t[c],e);for(s=0;s<4;s++){for(h=u[s],n=[],c=0,o=(d=t.length)-1;c<d;o=c++)r=t[c],a=t[o],r._code&h?a._code&h||((l=oi(a,r,h,e,i))._code=si(l,e),n.push(l)):(a._code&h&&((l=oi(a,r,h,e,i))._code=si(l,e),n.push(l)),n.push(r));t=n}return t}function $e(t,e){var i,n,o,s,r,a,h;if(!t||0===t.length)throw new Error("latlngs not passed");I(t)||(console.warn("latlngs are not flat! Only the first ring will be used"),t=t[0]);for(var l=w([0,0]),u=g(t),c=(u.getNorthWest().distanceTo(u.getSouthWest())*u.getNorthEast().distanceTo(u.getNorthWest())<1700&&(l=Qe(t)),t.length),d=[],_=0;_<c;_++){var p=w(t[_]);d.push(e.project(w([p.lat-l.lat,p.lng-l.lng])))}for(_=r=a=h=0,i=c-1;_<c;i=_++)n=d[_],o=d[i],s=n.y*o.x-o.y*n.x,a+=(n.x+o.x)*s,h+=(n.y+o.y)*s,r+=3*s;u=0===r?d[0]:[a/r,h/r],u=e.unproject(m(u));return w([u.lat+l.lat,u.lng+l.lng])}function Qe(t){for(var e=0,i=0,n=0,o=0;o<t.length;o++){var s=w(t[o]);e+=s.lat,i+=s.lng,n++}return w([e/n,i/n])}var ti,gt={__proto__:null,clipPolygon:Je,polygonCenter:$e,centroid:Qe};function ei(t,e){if(e&&t.length){var i=t=function(t,e){for(var i=[t[0]],n=1,o=0,s=t.length;n<s;n++)(function(t,e){var i=e.x-t.x,e=e.y-t.y;return i*i+e*e})(t[n],t[o])>e&&(i.push(t[n]),o=n);o<s-1&&i.push(t[s-1]);return i}(t,e=e*e),n=i.length,o=new(typeof Uint8Array!=void 0+""?Uint8Array:Array)(n);o[0]=o[n-1]=1,function t(e,i,n,o,s){var r,a,h,l=0;for(a=o+1;a<=s-1;a++)h=ri(e[a],e[o],e[s],!0),l<h&&(r=a,l=h);n<l&&(i[r]=1,t(e,i,n,o,r),t(e,i,n,r,s))}(i,o,e,0,n-1);var s,r=[];for(s=0;s<n;s++)o[s]&&r.push(i[s]);return r}return t.slice()}function ii(t,e,i){return Math.sqrt(ri(t,e,i,!0))}function ni(t,e,i,n,o){var s,r,a,h=n?ti:si(t,i),l=si(e,i);for(ti=l;;){if(!(h|l))return[t,e];if(h&l)return!1;a=si(r=oi(t,e,s=h||l,i,o),i),s===h?(t=r,h=a):(e=r,l=a)}}function oi(t,e,i,n,o){var s,r,a=e.x-t.x,e=e.y-t.y,h=n.min,n=n.max;return 8&i?(s=t.x+a*(n.y-t.y)/e,r=n.y):4&i?(s=t.x+a*(h.y-t.y)/e,r=h.y):2&i?(s=n.x,r=t.y+e*(n.x-t.x)/a):1&i&&(s=h.x,r=t.y+e*(h.x-t.x)/a),new p(s,r,o)}function si(t,e){var i=0;return t.x<e.min.x?i|=1:t.x>e.max.x&&(i|=2),t.y<e.min.y?i|=4:t.y>e.max.y&&(i|=8),i}function ri(t,e,i,n){var o=e.x,e=e.y,s=i.x-o,r=i.y-e,a=s*s+r*r;return 0<a&&(1<(a=((t.x-o)*s+(t.y-e)*r)/a)?(o=i.x,e=i.y):0<a&&(o+=s*a,e+=r*a)),s=t.x-o,r=t.y-e,n?s*s+r*r:new p(o,e)}function I(t){return!d(t[0])||"object"!=typeof t[0][0]&&void 0!==t[0][0]}function ai(t){return console.warn("Deprecated use of _flat, please use L.LineUtil.isFlat instead."),I(t)}function hi(t,e){var i,n,o,s,r,a;if(!t||0===t.length)throw new Error("latlngs not passed");I(t)||(console.warn("latlngs are not flat! Only the first ring will be used"),t=t[0]);for(var h=w([0,0]),l=g(t),u=(l.getNorthWest().distanceTo(l.getSouthWest())*l.getNorthEast().distanceTo(l.getNorthWest())<1700&&(h=Qe(t)),t.length),c=[],d=0;d<u;d++){var _=w(t[d]);c.push(e.project(w([_.lat-h.lat,_.lng-h.lng])))}for(i=d=0;d<u-1;d++)i+=c[d].distanceTo(c[d+1])/2;if(0===i)a=c[0];else for(n=d=0;d<u-1;d++)if(o=c[d],s=c[d+1],i<(n+=r=o.distanceTo(s))){a=[s.x-(r=(n-i)/r)*(s.x-o.x),s.y-r*(s.y-o.y)];break}l=e.unproject(m(a));return w([l.lat+h.lat,l.lng+h.lng])}var vt={__proto__:null,simplify:ei,pointToSegmentDistance:ii,closestPointOnSegment:function(t,e,i){return ri(t,e,i)},clipSegment:ni,_getEdgeIntersection:oi,_getBitCode:si,_sqClosestPointOnSegment:ri,isFlat:I,_flat:ai,polylineCenter:hi},yt={project:function(t){return new p(t.lng,t.lat)},unproject:function(t){return new v(t.y,t.x)},bounds:new f([-180,-90],[180,90])},xt={R:6378137,R_MINOR:6356752.314245179,bounds:new f([-20037508.34279,-15496570.73972],[20037508.34279,18764656.23138]),project:function(t){var e=Math.PI/180,i=this.R,n=t.lat*e,o=this.R_MINOR/i,o=Math.sqrt(1-o*o),s=o*Math.sin(n),s=Math.tan(Math.PI/4-n/2)/Math.pow((1-s)/(1+s),o/2),n=-i*Math.log(Math.max(s,1e-10));return new p(t.lng*e*i,n)},unproject:function(t){for(var e,i=180/Math.PI,n=this.R,o=this.R_MINOR/n,s=Math.sqrt(1-o*o),r=Math.exp(-t.y/n),a=Math.PI/2-2*Math.atan(r),h=0,l=.1;h<15&&1e-7<Math.abs(l);h++)e=s*Math.sin(a),e=Math.pow((1-e)/(1+e),s/2),a+=l=Math.PI/2-2*Math.atan(r*e)-a;return new v(a*i,t.x*i/n)}},wt={__proto__:null,LonLat:yt,Mercator:xt,SphericalMercator:rt},Pt=l({},st,{code:"EPSG:3395",projection:xt,transformation:ht(bt=.5/(Math.PI*xt.R),.5,-bt,.5)}),li=l({},st,{code:"EPSG:4326",projection:yt,transformation:ht(1/180,1,-1/180,.5)}),Lt=l({},ot,{projection:yt,transformation:ht(1,0,-1,0),scale:function(t){return Math.pow(2,t)},zoom:function(t){return Math.log(t)/Math.LN2},distance:function(t,e){var i=e.lng-t.lng,e=e.lat-t.lat;return Math.sqrt(i*i+e*e)},infinite:!0}),o=(ot.Earth=st,ot.EPSG3395=Pt,ot.EPSG3857=lt,ot.EPSG900913=ut,ot.EPSG4326=li,ot.Simple=Lt,it.extend({options:{pane:"overlayPane",attribution:null,bubblingMouseEvents:!0},addTo:function(t){return t.addLayer(this),this},remove:function(){return this.removeFrom(this._map||this._mapToAdd)},removeFrom:function(t){return t&&t.removeLayer(this),this},getPane:function(t){return this._map.getPane(t?this.options[t]||t:this.options.pane)},addInteractiveTarget:function(t){return this._map._targets[h(t)]=this},removeInteractiveTarget:function(t){return delete this._map._targets[h(t)],this},getAttribution:function(){return this.options.attribution},_layerAdd:function(t){var e,i=t.target;i.hasLayer(this)&&(this._map=i,this._zoomAnimated=i._zoomAnimated,this.getEvents&&(e=this.getEvents(),i.on(e,this),this.once("remove",function(){i.off(e,this)},this)),this.onAdd(i),this.fire("add"),i.fire("layeradd",{layer:this}))}})),ui=(A.include({addLayer:function(t){var e;if(t._layerAdd)return e=h(t),this._layers[e]||((this._layers[e]=t)._mapToAdd=this,t.beforeAdd&&t.beforeAdd(this),this.whenReady(t._layerAdd,t)),this;throw new Error("The provided object is not a Layer.")},removeLayer:function(t){var e=h(t);return this._layers[e]&&(this._loaded&&t.onRemove(this),delete this._layers[e],this._loaded&&(this.fire("layerremove",{layer:t}),t.fire("remove")),t._map=t._mapToAdd=null),this},hasLayer:function(t){return h(t)in this._layers},eachLayer:function(t,e){for(var i in this._layers)t.call(e,this._layers[i]);return this},_addLayers:function(t){for(var e=0,i=(t=t?d(t)?t:[t]:[]).length;e<i;e++)this.addLayer(t[e])},_addZoomLimit:function(t){isNaN(t.options.maxZoom)&&isNaN(t.options.minZoom)||(this._zoomBoundLayers[h(t)]=t,this._updateZoomLevels())},_removeZoomLimit:function(t){t=h(t);this._zoomBoundLayers[t]&&(delete this._zoomBoundLayers[t],this._updateZoomLevels())},_updateZoomLevels:function(){var t,e=1/0,i=-1/0,n=this._getZoomSpan();for(t in this._zoomBoundLayers)var o=this._zoomBoundLayers[t].options,e=void 0===o.minZoom?e:Math.min(e,o.minZoom),i=void 0===o.maxZoom?i:Math.max(i,o.maxZoom);this._layersMaxZoom=i===-1/0?void 0:i,this._layersMinZoom=e===1/0?void 0:e,n!==this._getZoomSpan()&&this.fire("zoomlevelschange"),void 0===this.options.maxZoom&&this._layersMaxZoom&&this.getZoom()>this._layersMaxZoom&&this.setZoom(this._layersMaxZoom),void 0===this.options.minZoom&&this._layersMinZoom&&this.getZoom()<this._layersMinZoom&&this.setZoom(this._layersMinZoom)}}),o.extend({initialize:function(t,e){var i,n;if(c(this,e),this._layers={},t)for(i=0,n=t.length;i<n;i++)this.addLayer(t[i])},addLayer:function(t){var e=this.getLayerId(t);return this._layers[e]=t,this._map&&this._map.addLayer(t),this},removeLayer:function(t){t=t in this._layers?t:this.getLayerId(t);return this._map&&this._layers[t]&&this._map.removeLayer(this._layers[t]),delete this._layers[t],this},hasLayer:function(t){return("number"==typeof t?t:this.getLayerId(t))in this._layers},clearLayers:function(){return this.eachLayer(this.removeLayer,this)},invoke:function(t){var e,i,n=Array.prototype.slice.call(arguments,1);for(e in this._layers)(i=this._layers[e])[t]&&i[t].apply(i,n);return this},onAdd:function(t){this.eachLayer(t.addLayer,t)},onRemove:function(t){this.eachLayer(t.removeLayer,t)},eachLayer:function(t,e){for(var i in this._layers)t.call(e,this._layers[i]);return this},getLayer:function(t){return this._layers[t]},getLayers:function(){var t=[];return this.eachLayer(t.push,t),t},setZIndex:function(t){return this.invoke("setZIndex",t)},getLayerId:h})),ci=ui.extend({addLayer:function(t){return this.hasLayer(t)?this:(t.addEventParent(this),ui.prototype.addLayer.call(this,t),this.fire("layeradd",{layer:t}))},removeLayer:function(t){return this.hasLayer(t)?((t=t in this._layers?this._layers[t]:t).removeEventParent(this),ui.prototype.removeLayer.call(this,t),this.fire("layerremove",{layer:t})):this},setStyle:function(t){return this.invoke("setStyle",t)},bringToFront:function(){return this.invoke("bringToFront")},bringToBack:function(){return this.invoke("bringToBack")},getBounds:function(){var t,e=new s;for(t in this._layers){var i=this._layers[t];e.extend(i.getBounds?i.getBounds():i.getLatLng())}return e}}),di=et.extend({options:{popupAnchor:[0,0],tooltipAnchor:[0,0],crossOrigin:!1},initialize:function(t){c(this,t)},createIcon:function(t){return this._createIcon("icon",t)},createShadow:function(t){return this._createIcon("shadow",t)},_createIcon:function(t,e){var i=this._getIconUrl(t);if(i)return i=this._createImg(i,e&&"IMG"===e.tagName?e:null),this._setIconStyles(i,t),!this.options.crossOrigin&&""!==this.options.crossOrigin||(i.crossOrigin=!0===this.options.crossOrigin?"":this.options.crossOrigin),i;if("icon"===t)throw new Error("iconUrl not set in Icon options (see the docs).");return null},_setIconStyles:function(t,e){var i=this.options,n=i[e+"Size"],n=m(n="number"==typeof n?[n,n]:n),o=m("shadow"===e&&i.shadowAnchor||i.iconAnchor||n&&n.divideBy(2,!0));t.className="leaflet-marker-"+e+" "+(i.className||""),o&&(t.style.marginLeft=-o.x+"px",t.style.marginTop=-o.y+"px"),n&&(t.style.width=n.x+"px",t.style.height=n.y+"px")},_createImg:function(t,e){return(e=e||document.createElement("img")).src=t,e},_getIconUrl:function(t){return b.retina&&this.options[t+"RetinaUrl"]||this.options[t+"Url"]}});var _i=di.extend({options:{iconUrl:"marker-icon.png",iconRetinaUrl:"marker-icon-2x.png",shadowUrl:"marker-shadow.png",iconSize:[25,41],iconAnchor:[12,41],popupAnchor:[1,-34],tooltipAnchor:[16,-28],shadowSize:[41,41]},_getIconUrl:function(t){return"string"!=typeof _i.imagePath&&(_i.imagePath=this._detectIconPath()),(this.options.imagePath||_i.imagePath)+di.prototype._getIconUrl.call(this,t)},_stripUrl:function(t){function e(t,e,i){return(e=e.exec(t))&&e[i]}return(t=e(t,/^url\((['"])?(.+)\1\)$/,2))&&e(t,/^(.*)marker-icon\.png$/,1)},_detectIconPath:function(){var t=P("div","leaflet-default-icon-path",document.body),e=pe(t,"background-image")||pe(t,"backgroundImage");return document.body.removeChild(t),(e=this._stripUrl(e))?e:(t=document.querySelector('link[href$="leaflet.css"]'))?t.href.substring(0,t.href.length-"leaflet.css".length-1):""}}),pi=n.extend({initialize:function(t){this._marker=t},addHooks:function(){var t=this._marker._icon;this._draggable||(this._draggable=new Xe(t,t,!0)),this._draggable.on({dragstart:this._onDragStart,predrag:this._onPreDrag,drag:this._onDrag,dragend:this._onDragEnd},this).enable(),M(t,"leaflet-marker-draggable")},removeHooks:function(){this._draggable.off({dragstart:this._onDragStart,predrag:this._onPreDrag,drag:this._onDrag,dragend:this._onDragEnd},this).disable(),this._marker._icon&&z(this._marker._icon,"leaflet-marker-draggable")},moved:function(){return this._draggable&&this._draggable._moved},_adjustPan:function(t){var e=this._marker,i=e._map,n=this._marker.options.autoPanSpeed,o=this._marker.options.autoPanPadding,s=Pe(e._icon),r=i.getPixelBounds(),a=i.getPixelOrigin(),a=_(r.min._subtract(a).add(o),r.max._subtract(a).subtract(o));a.contains(s)||(o=m((Math.max(a.max.x,s.x)-a.max.x)/(r.max.x-a.max.x)-(Math.min(a.min.x,s.x)-a.min.x)/(r.min.x-a.min.x),(Math.max(a.max.y,s.y)-a.max.y)/(r.max.y-a.max.y)-(Math.min(a.min.y,s.y)-a.min.y)/(r.min.y-a.min.y)).multiplyBy(n),i.panBy(o,{animate:!1}),this._draggable._newPos._add(o),this._draggable._startPos._add(o),Z(e._icon,this._draggable._newPos),this._onDrag(t),this._panRequest=x(this._adjustPan.bind(this,t)))},_onDragStart:function(){this._oldLatLng=this._marker.getLatLng(),this._marker.closePopup&&this._marker.closePopup(),this._marker.fire("movestart").fire("dragstart")},_onPreDrag:function(t){this._marker.options.autoPan&&(r(this._panRequest),this._panRequest=x(this._adjustPan.bind(this,t)))},_onDrag:function(t){var e=this._marker,i=e._shadow,n=Pe(e._icon),o=e._map.layerPointToLatLng(n);i&&Z(i,n),e._latlng=o,t.latlng=o,t.oldLatLng=this._oldLatLng,e.fire("move",t).fire("drag",t)},_onDragEnd:function(t){r(this._panRequest),delete this._oldLatLng,this._marker.fire("moveend").fire("dragend",t)}}),mi=o.extend({options:{icon:new _i,interactive:!0,keyboard:!0,title:"",alt:"Marker",zIndexOffset:0,opacity:1,riseOnHover:!1,riseOffset:250,pane:"markerPane",shadowPane:"shadowPane",bubblingMouseEvents:!1,autoPanOnFocus:!0,draggable:!1,autoPan:!1,autoPanPadding:[50,50],autoPanSpeed:10},initialize:function(t,e){c(this,e),this._latlng=w(t)},onAdd:function(t){this._zoomAnimated=this._zoomAnimated&&t.options.markerZoomAnimation,this._zoomAnimated&&t.on("zoomanim",this._animateZoom,this),this._initIcon(),this.update()},onRemove:function(t){this.dragging&&this.dragging.enabled()&&(this.options.draggable=!0,this.dragging.removeHooks()),delete this.dragging,this._zoomAnimated&&t.off("zoomanim",this._animateZoom,this),this._removeIcon(),this._removeShadow()},getEvents:function(){return{zoom:this.update,viewreset:this.update}},getLatLng:function(){return this._latlng},setLatLng:function(t){var e=this._latlng;return this._latlng=w(t),this.update(),this.fire("move",{oldLatLng:e,latlng:this._latlng})},setZIndexOffset:function(t){return this.options.zIndexOffset=t,this.update()},getIcon:function(){return this.options.icon},setIcon:function(t){return this.options.icon=t,this._map&&(this._initIcon(),this.update()),this._popup&&this.bindPopup(this._popup,this._popup.options),this},getElement:function(){return this._icon},update:function(){var t;return this._icon&&this._map&&(t=this._map.latLngToLayerPoint(this._latlng).round(),this._setPos(t)),this},_initIcon:function(){var t=this.options,e="leaflet-zoom-"+(this._zoomAnimated?"animated":"hide"),i=t.icon.createIcon(this._icon),n=!1,i=(i!==this._icon&&(this._icon&&this._removeIcon(),n=!0,t.title&&(i.title=t.title),"IMG"===i.tagName&&(i.alt=t.alt||"")),M(i,e),t.keyboard&&(i.tabIndex="0",i.setAttribute("role","button")),this._icon=i,t.riseOnHover&&this.on({mouseover:this._bringToFront,mouseout:this._resetZIndex}),this.options.autoPanOnFocus&&S(i,"focus",this._panOnFocus,this),t.icon.createShadow(this._shadow)),o=!1;i!==this._shadow&&(this._removeShadow(),o=!0),i&&(M(i,e),i.alt=""),this._shadow=i,t.opacity<1&&this._updateOpacity(),n&&this.getPane().appendChild(this._icon),this._initInteraction(),i&&o&&this.getPane(t.shadowPane).appendChild(this._shadow)},_removeIcon:function(){this.options.riseOnHover&&this.off({mouseover:this._bringToFront,mouseout:this._resetZIndex}),this.options.autoPanOnFocus&&k(this._icon,"focus",this._panOnFocus,this),T(this._icon),this.removeInteractiveTarget(this._icon),this._icon=null},_removeShadow:function(){this._shadow&&T(this._shadow),this._shadow=null},_setPos:function(t){this._icon&&Z(this._icon,t),this._shadow&&Z(this._shadow,t),this._zIndex=t.y+this.options.zIndexOffset,this._resetZIndex()},_updateZIndex:function(t){this._icon&&(this._icon.style.zIndex=this._zIndex+t)},_animateZoom:function(t){t=this._map._latLngToNewLayerPoint(this._latlng,t.zoom,t.center).round();this._setPos(t)},_initInteraction:function(){var t;this.options.interactive&&(M(this._icon,"leaflet-interactive"),this.addInteractiveTarget(this._icon),pi&&(t=this.options.draggable,this.dragging&&(t=this.dragging.enabled(),this.dragging.disable()),this.dragging=new pi(this),t&&this.dragging.enable()))},setOpacity:function(t){return this.options.opacity=t,this._map&&this._updateOpacity(),this},_updateOpacity:function(){var t=this.options.opacity;this._icon&&C(this._icon,t),this._shadow&&C(this._shadow,t)},_bringToFront:function(){this._updateZIndex(this.options.riseOffset)},_resetZIndex:function(){this._updateZIndex(0)},_panOnFocus:function(){var t,e,i=this._map;i&&(t=(e=this.options.icon.options).iconSize?m(e.iconSize):m(0,0),e=e.iconAnchor?m(e.iconAnchor):m(0,0),i.panInside(this._latlng,{paddingTopLeft:e,paddingBottomRight:t.subtract(e)}))},_getPopupAnchor:function(){return this.options.icon.options.popupAnchor},_getTooltipAnchor:function(){return this.options.icon.options.tooltipAnchor}});var fi=o.extend({options:{stroke:!0,color:"#3388ff",weight:3,opacity:1,lineCap:"round",lineJoin:"round",dashArray:null,dashOffset:null,fill:!1,fillColor:null,fillOpacity:.2,fillRule:"evenodd",interactive:!0,bubblingMouseEvents:!0},beforeAdd:function(t){this._renderer=t.getRenderer(this)},onAdd:function(){this._renderer._initPath(this),this._reset(),this._renderer._addPath(this)},onRemove:function(){this._renderer._removePath(this)},redraw:function(){return this._map&&this._renderer._updatePath(this),this},setStyle:function(t){return c(this,t),this._renderer&&(this._renderer._updateStyle(this),this.options.stroke&&t&&Object.prototype.hasOwnProperty.call(t,"weight")&&this._updateBounds()),this},bringToFront:function(){return this._renderer&&this._renderer._bringToFront(this),this},bringToBack:function(){return this._renderer&&this._renderer._bringToBack(this),this},getElement:function(){return this._path},_reset:function(){this._project(),this._update()},_clickTolerance:function(){return(this.options.stroke?this.options.weight/2:0)+(this._renderer.options.tolerance||0)}}),gi=fi.extend({options:{fill:!0,radius:10},initialize:function(t,e){c(this,e),this._latlng=w(t),this._radius=this.options.radius},setLatLng:function(t){var e=this._latlng;return this._latlng=w(t),this.redraw(),this.fire("move",{oldLatLng:e,latlng:this._latlng})},getLatLng:function(){return this._latlng},setRadius:function(t){return this.options.radius=this._radius=t,this.redraw()},getRadius:function(){return this._radius},setStyle:function(t){var e=t&&t.radius||this._radius;return fi.prototype.setStyle.call(this,t),this.setRadius(e),this},_project:function(){this._point=this._map.latLngToLayerPoint(this._latlng),this._updateBounds()},_updateBounds:function(){var t=this._radius,e=this._radiusY||t,i=this._clickTolerance(),t=[t+i,e+i];this._pxBounds=new f(this._point.subtract(t),this._point.add(t))},_update:function(){this._map&&this._updatePath()},_updatePath:function(){this._renderer._updateCircle(this)},_empty:function(){return this._radius&&!this._renderer._bounds.intersects(this._pxBounds)},_containsPoint:function(t){return t.distanceTo(this._point)<=this._radius+this._clickTolerance()}});var vi=gi.extend({initialize:function(t,e,i){if(c(this,e="number"==typeof e?l({},i,{radius:e}):e),this._latlng=w(t),isNaN(this.options.radius))throw new Error("Circle radius cannot be NaN");this._mRadius=this.options.radius},setRadius:function(t){return this._mRadius=t,this.redraw()},getRadius:function(){return this._mRadius},getBounds:function(){var t=[this._radius,this._radiusY||this._radius];return new s(this._map.layerPointToLatLng(this._point.subtract(t)),this._map.layerPointToLatLng(this._point.add(t)))},setStyle:fi.prototype.setStyle,_project:function(){var t,e,i,n,o,s=this._latlng.lng,r=this._latlng.lat,a=this._map,h=a.options.crs;h.distance===st.distance?(n=Math.PI/180,o=this._mRadius/st.R/n,t=a.project([r+o,s]),e=a.project([r-o,s]),e=t.add(e).divideBy(2),i=a.unproject(e).lat,n=Math.acos((Math.cos(o*n)-Math.sin(r*n)*Math.sin(i*n))/(Math.cos(r*n)*Math.cos(i*n)))/n,!isNaN(n)&&0!==n||(n=o/Math.cos(Math.PI/180*r)),this._point=e.subtract(a.getPixelOrigin()),this._radius=isNaN(n)?0:e.x-a.project([i,s-n]).x,this._radiusY=e.y-t.y):(o=h.unproject(h.project(this._latlng).subtract([this._mRadius,0])),this._point=a.latLngToLayerPoint(this._latlng),this._radius=this._point.x-a.latLngToLayerPoint(o).x),this._updateBounds()}});var yi=fi.extend({options:{smoothFactor:1,noClip:!1},initialize:function(t,e){c(this,e),this._setLatLngs(t)},getLatLngs:function(){return this._latlngs},setLatLngs:function(t){return this._setLatLngs(t),this.redraw()},isEmpty:function(){return!this._latlngs.length},closestLayerPoint:function(t){for(var e=1/0,i=null,n=ri,o=0,s=this._parts.length;o<s;o++)for(var r=this._parts[o],a=1,h=r.length;a<h;a++){var l,u,c=n(t,l=r[a-1],u=r[a],!0);c<e&&(e=c,i=n(t,l,u))}return i&&(i.distance=Math.sqrt(e)),i},getCenter:function(){if(this._map)return hi(this._defaultShape(),this._map.options.crs);throw new Error("Must add layer to map before using getCenter()")},getBounds:function(){return this._bounds},addLatLng:function(t,e){return e=e||this._defaultShape(),t=w(t),e.push(t),this._bounds.extend(t),this.redraw()},_setLatLngs:function(t){this._bounds=new s,this._latlngs=this._convertLatLngs(t)},_defaultShape:function(){return I(this._latlngs)?this._latlngs:this._latlngs[0]},_convertLatLngs:function(t){for(var e=[],i=I(t),n=0,o=t.length;n<o;n++)i?(e[n]=w(t[n]),this._bounds.extend(e[n])):e[n]=this._convertLatLngs(t[n]);return e},_project:function(){var t=new f;this._rings=[],this._projectLatlngs(this._latlngs,this._rings,t),this._bounds.isValid()&&t.isValid()&&(this._rawPxBounds=t,this._updateBounds())},_updateBounds:function(){var t=this._clickTolerance(),t=new p(t,t);this._rawPxBounds&&(this._pxBounds=new f([this._rawPxBounds.min.subtract(t),this._rawPxBounds.max.add(t)]))},_projectLatlngs:function(t,e,i){var n,o,s=t[0]instanceof v,r=t.length;if(s){for(o=[],n=0;n<r;n++)o[n]=this._map.latLngToLayerPoint(t[n]),i.extend(o[n]);e.push(o)}else for(n=0;n<r;n++)this._projectLatlngs(t[n],e,i)},_clipPoints:function(){var t=this._renderer._bounds;if(this._parts=[],this._pxBounds&&this._pxBounds.intersects(t))if(this.options.noClip)this._parts=this._rings;else for(var e,i,n,o,s=this._parts,r=0,a=0,h=this._rings.length;r<h;r++)for(e=0,i=(o=this._rings[r]).length;e<i-1;e++)(n=ni(o[e],o[e+1],t,e,!0))&&(s[a]=s[a]||[],s[a].push(n[0]),n[1]===o[e+1]&&e!==i-2||(s[a].push(n[1]),a++))},_simplifyPoints:function(){for(var t=this._parts,e=this.options.smoothFactor,i=0,n=t.length;i<n;i++)t[i]=ei(t[i],e)},_update:function(){this._map&&(this._clipPoints(),this._simplifyPoints(),this._updatePath())},_updatePath:function(){this._renderer._updatePoly(this)},_containsPoint:function(t,e){var i,n,o,s,r,a,h=this._clickTolerance();if(this._pxBounds&&this._pxBounds.contains(t))for(i=0,s=this._parts.length;i<s;i++)for(n=0,o=(r=(a=this._parts[i]).length)-1;n<r;o=n++)if((e||0!==n)&&ii(t,a[o],a[n])<=h)return!0;return!1}});yi._flat=ai;var xi=yi.extend({options:{fill:!0},isEmpty:function(){return!this._latlngs.length||!this._latlngs[0].length},getCenter:function(){if(this._map)return $e(this._defaultShape(),this._map.options.crs);throw new Error("Must add layer to map before using getCenter()")},_convertLatLngs:function(t){var t=yi.prototype._convertLatLngs.call(this,t),e=t.length;return 2<=e&&t[0]instanceof v&&t[0].equals(t[e-1])&&t.pop(),t},_setLatLngs:function(t){yi.prototype._setLatLngs.call(this,t),I(this._latlngs)&&(this._latlngs=[this._latlngs])},_defaultShape:function(){return(I(this._latlngs[0])?this._latlngs:this._latlngs[0])[0]},_clipPoints:function(){var t=this._renderer._bounds,e=this.options.weight,e=new p(e,e),t=new f(t.min.subtract(e),t.max.add(e));if(this._parts=[],this._pxBounds&&this._pxBounds.intersects(t))if(this.options.noClip)this._parts=this._rings;else for(var i,n=0,o=this._rings.length;n<o;n++)(i=Je(this._rings[n],t,!0)).length&&this._parts.push(i)},_updatePath:function(){this._renderer._updatePoly(this,!0)},_containsPoint:function(t){var e,i,n,o,s,r,a,h,l=!1;if(!this._pxBounds||!this._pxBounds.contains(t))return!1;for(o=0,a=this._parts.length;o<a;o++)for(s=0,r=(h=(e=this._parts[o]).length)-1;s<h;r=s++)i=e[s],n=e[r],i.y>t.y!=n.y>t.y&&t.x<(n.x-i.x)*(t.y-i.y)/(n.y-i.y)+i.x&&(l=!l);return l||yi.prototype._containsPoint.call(this,t,!0)}});var wi=ci.extend({initialize:function(t,e){c(this,e),this._layers={},t&&this.addData(t)},addData:function(t){var e,i,n,o=d(t)?t:t.features;if(o){for(e=0,i=o.length;e<i;e++)((n=o[e]).geometries||n.geometry||n.features||n.coordinates)&&this.addData(n);return this}var s,r=this.options;return(!r.filter||r.filter(t))&&(s=bi(t,r))?(s.feature=Zi(t),s.defaultOptions=s.options,this.resetStyle(s),r.onEachFeature&&r.onEachFeature(t,s),this.addLayer(s)):this},resetStyle:function(t){return void 0===t?this.eachLayer(this.resetStyle,this):(t.options=l({},t.defaultOptions),this._setLayerStyle(t,this.options.style),this)},setStyle:function(e){return this.eachLayer(function(t){this._setLayerStyle(t,e)},this)},_setLayerStyle:function(t,e){t.setStyle&&("function"==typeof e&&(e=e(t.feature)),t.setStyle(e))}});function bi(t,e){var i,n,o,s,r="Feature"===t.type?t.geometry:t,a=r?r.coordinates:null,h=[],l=e&&e.pointToLayer,u=e&&e.coordsToLatLng||Li;if(!a&&!r)return null;switch(r.type){case"Point":return Pi(l,t,i=u(a),e);case"MultiPoint":for(o=0,s=a.length;o<s;o++)i=u(a[o]),h.push(Pi(l,t,i,e));return new ci(h);case"LineString":case"MultiLineString":return n=Ti(a,"LineString"===r.type?0:1,u),new yi(n,e);case"Polygon":case"MultiPolygon":return n=Ti(a,"Polygon"===r.type?1:2,u),new xi(n,e);case"GeometryCollection":for(o=0,s=r.geometries.length;o<s;o++){var c=bi({geometry:r.geometries[o],type:"Feature",properties:t.properties},e);c&&h.push(c)}return new ci(h);case"FeatureCollection":for(o=0,s=r.features.length;o<s;o++){var d=bi(r.features[o],e);d&&h.push(d)}return new ci(h);default:throw new Error("Invalid GeoJSON object.")}}function Pi(t,e,i,n){return t?t(e,i):new mi(i,n&&n.markersInheritOptions&&n)}function Li(t){return new v(t[1],t[0],t[2])}function Ti(t,e,i){for(var n,o=[],s=0,r=t.length;s<r;s++)n=e?Ti(t[s],e-1,i):(i||Li)(t[s]),o.push(n);return o}function Mi(t,e){return void 0!==(t=w(t)).alt?[i(t.lng,e),i(t.lat,e),i(t.alt,e)]:[i(t.lng,e),i(t.lat,e)]}function zi(t,e,i,n){for(var o=[],s=0,r=t.length;s<r;s++)o.push(e?zi(t[s],I(t[s])?0:e-1,i,n):Mi(t[s],n));return!e&&i&&0<o.length&&o.push(o[0].slice()),o}function Ci(t,e){return t.feature?l({},t.feature,{geometry:e}):Zi(e)}function Zi(t){return"Feature"===t.type||"FeatureCollection"===t.type?t:{type:"Feature",properties:{},geometry:t}}Tt={toGeoJSON:function(t){return Ci(this,{type:"Point",coordinates:Mi(this.getLatLng(),t)})}};function Si(t,e){return new wi(t,e)}mi.include(Tt),vi.include(Tt),gi.include(Tt),yi.include({toGeoJSON:function(t){var e=!I(this._latlngs);return Ci(this,{type:(e?"Multi":"")+"LineString",coordinates:zi(this._latlngs,e?1:0,!1,t)})}}),xi.include({toGeoJSON:function(t){var e=!I(this._latlngs),i=e&&!I(this._latlngs[0]),t=zi(this._latlngs,i?2:e?1:0,!0,t);return Ci(this,{type:(i?"Multi":"")+"Polygon",coordinates:t=e?t:[t]})}}),ui.include({toMultiPoint:function(e){var i=[];return this.eachLayer(function(t){i.push(t.toGeoJSON(e).geometry.coordinates)}),Ci(this,{type:"MultiPoint",coordinates:i})},toGeoJSON:function(e){var i,n,t=this.feature&&this.feature.geometry&&this.feature.geometry.type;return"MultiPoint"===t?this.toMultiPoint(e):(i="GeometryCollection"===t,n=[],this.eachLayer(function(t){t.toGeoJSON&&(t=t.toGeoJSON(e),i?n.push(t.geometry):"FeatureCollection"===(t=Zi(t)).type?n.push.apply(n,t.features):n.push(t))}),i?Ci(this,{geometries:n,type:"GeometryCollection"}):{type:"FeatureCollection",features:n})}});var Mt=Si,Ei=o.extend({options:{opacity:1,alt:"",interactive:!1,crossOrigin:!1,errorOverlayUrl:"",zIndex:1,className:""},initialize:function(t,e,i){this._url=t,this._bounds=g(e),c(this,i)},onAdd:function(){this._image||(this._initImage(),this.options.opacity<1&&this._updateOpacity()),this.options.interactive&&(M(this._image,"leaflet-interactive"),this.addInteractiveTarget(this._image)),this.getPane().appendChild(this._image),this._reset()},onRemove:function(){T(this._image),this.options.interactive&&this.removeInteractiveTarget(this._image)},setOpacity:function(t){return this.options.opacity=t,this._image&&this._updateOpacity(),this},setStyle:function(t){return t.opacity&&this.setOpacity(t.opacity),this},bringToFront:function(){return this._map&&fe(this._image),this},bringToBack:function(){return this._map&&ge(this._image),this},setUrl:function(t){return this._url=t,this._image&&(this._image.src=t),this},setBounds:function(t){return this._bounds=g(t),this._map&&this._reset(),this},getEvents:function(){var t={zoom:this._reset,viewreset:this._reset};return this._zoomAnimated&&(t.zoomanim=this._animateZoom),t},setZIndex:function(t){return this.options.zIndex=t,this._updateZIndex(),this},getBounds:function(){return this._bounds},getElement:function(){return this._image},_initImage:function(){var t="IMG"===this._url.tagName,e=this._image=t?this._url:P("img");M(e,"leaflet-image-layer"),this._zoomAnimated&&M(e,"leaflet-zoom-animated"),this.options.className&&M(e,this.options.className),e.onselectstart=u,e.onmousemove=u,e.onload=a(this.fire,this,"load"),e.onerror=a(this._overlayOnError,this,"error"),!this.options.crossOrigin&&""!==this.options.crossOrigin||(e.crossOrigin=!0===this.options.crossOrigin?"":this.options.crossOrigin),this.options.zIndex&&this._updateZIndex(),t?this._url=e.src:(e.src=this._url,e.alt=this.options.alt)},_animateZoom:function(t){var e=this._map.getZoomScale(t.zoom),t=this._map._latLngBoundsToNewLayerBounds(this._bounds,t.zoom,t.center).min;be(this._image,t,e)},_reset:function(){var t=this._image,e=new f(this._map.latLngToLayerPoint(this._bounds.getNorthWest()),this._map.latLngToLayerPoint(this._bounds.getSouthEast())),i=e.getSize();Z(t,e.min),t.style.width=i.x+"px",t.style.height=i.y+"px"},_updateOpacity:function(){C(this._image,this.options.opacity)},_updateZIndex:function(){this._image&&void 0!==this.options.zIndex&&null!==this.options.zIndex&&(this._image.style.zIndex=this.options.zIndex)},_overlayOnError:function(){this.fire("error");var t=this.options.errorOverlayUrl;t&&this._url!==t&&(this._url=t,this._image.src=t)},getCenter:function(){return this._bounds.getCenter()}}),ki=Ei.extend({options:{autoplay:!0,loop:!0,keepAspectRatio:!0,muted:!1,playsInline:!0},_initImage:function(){var t="VIDEO"===this._url.tagName,e=this._image=t?this._url:P("video");if(M(e,"leaflet-image-layer"),this._zoomAnimated&&M(e,"leaflet-zoom-animated"),this.options.className&&M(e,this.options.className),e.onselectstart=u,e.onmousemove=u,e.onloadeddata=a(this.fire,this,"load"),t){for(var i=e.getElementsByTagName("source"),n=[],o=0;o<i.length;o++)n.push(i[o].src);this._url=0<i.length?n:[e.src]}else{d(this._url)||(this._url=[this._url]),!this.options.keepAspectRatio&&Object.prototype.hasOwnProperty.call(e.style,"objectFit")&&(e.style.objectFit="fill"),e.autoplay=!!this.options.autoplay,e.loop=!!this.options.loop,e.muted=!!this.options.muted,e.playsInline=!!this.options.playsInline;for(var s=0;s<this._url.length;s++){var r=P("source");r.src=this._url[s],e.appendChild(r)}}}});var Oi=Ei.extend({_initImage:function(){var t=this._image=this._url;M(t,"leaflet-image-layer"),this._zoomAnimated&&M(t,"leaflet-zoom-animated"),this.options.className&&M(t,this.options.className),t.onselectstart=u,t.onmousemove=u}});var Ai=o.extend({options:{interactive:!1,offset:[0,0],className:"",pane:void 0,content:""},initialize:function(t,e){t&&(t instanceof v||d(t))?(this._latlng=w(t),c(this,e)):(c(this,t),this._source=e),this.options.content&&(this._content=this.options.content)},openOn:function(t){return(t=arguments.length?t:this._source._map).hasLayer(this)||t.addLayer(this),this},close:function(){return this._map&&this._map.removeLayer(this),this},toggle:function(t){return this._map?this.close():(arguments.length?this._source=t:t=this._source,this._prepareOpen(),this.openOn(t._map)),this},onAdd:function(t){this._zoomAnimated=t._zoomAnimated,this._container||this._initLayout(),t._fadeAnimated&&C(this._container,0),clearTimeout(this._removeTimeout),this.getPane().appendChild(this._container),this.update(),t._fadeAnimated&&C(this._container,1),this.bringToFront(),this.options.interactive&&(M(this._container,"leaflet-interactive"),this.addInteractiveTarget(this._container))},onRemove:function(t){t._fadeAnimated?(C(this._container,0),this._removeTimeout=setTimeout(a(T,void 0,this._container),200)):T(this._container),this.options.interactive&&(z(this._container,"leaflet-interactive"),this.removeInteractiveTarget(this._container))},getLatLng:function(){return this._latlng},setLatLng:function(t){return this._latlng=w(t),this._map&&(this._updatePosition(),this._adjustPan()),this},getContent:function(){return this._content},setContent:function(t){return this._content=t,this.update(),this},getElement:function(){return this._container},update:function(){this._map&&(this._container.style.visibility="hidden",this._updateContent(),this._updateLayout(),this._updatePosition(),this._container.style.visibility="",this._adjustPan())},getEvents:function(){var t={zoom:this._updatePosition,viewreset:this._updatePosition};return this._zoomAnimated&&(t.zoomanim=this._animateZoom),t},isOpen:function(){return!!this._map&&this._map.hasLayer(this)},bringToFront:function(){return this._map&&fe(this._container),this},bringToBack:function(){return this._map&&ge(this._container),this},_prepareOpen:function(t){if(!(i=this._source)._map)return!1;if(i instanceof ci){var e,i=null,n=this._source._layers;for(e in n)if(n[e]._map){i=n[e];break}if(!i)return!1;this._source=i}if(!t)if(i.getCenter)t=i.getCenter();else if(i.getLatLng)t=i.getLatLng();else{if(!i.getBounds)throw new Error("Unable to get source layer LatLng.");t=i.getBounds().getCenter()}return this.setLatLng(t),this._map&&this.update(),!0},_updateContent:function(){if(this._content){var t=this._contentNode,e="function"==typeof this._content?this._content(this._source||this):this._content;if("string"==typeof e)t.innerHTML=e;else{for(;t.hasChildNodes();)t.removeChild(t.firstChild);t.appendChild(e)}this.fire("contentupdate")}},_updatePosition:function(){var t,e,i;this._map&&(e=this._map.latLngToLayerPoint(this._latlng),t=m(this.options.offset),i=this._getAnchor(),this._zoomAnimated?Z(this._container,e.add(i)):t=t.add(e).add(i),e=this._containerBottom=-t.y,i=this._containerLeft=-Math.round(this._containerWidth/2)+t.x,this._container.style.bottom=e+"px",this._container.style.left=i+"px")},_getAnchor:function(){return[0,0]}}),Bi=(A.include({_initOverlay:function(t,e,i,n){var o=e;return o instanceof t||(o=new t(n).setContent(e)),i&&o.setLatLng(i),o}}),o.include({_initOverlay:function(t,e,i,n){var o=i;return o instanceof t?(c(o,n),o._source=this):(o=e&&!n?e:new t(n,this)).setContent(i),o}}),Ai.extend({options:{pane:"popupPane",offset:[0,7],maxWidth:300,minWidth:50,maxHeight:null,autoPan:!0,autoPanPaddingTopLeft:null,autoPanPaddingBottomRight:null,autoPanPadding:[5,5],keepInView:!1,closeButton:!0,autoClose:!0,closeOnEscapeKey:!0,className:""},openOn:function(t){return!(t=arguments.length?t:this._source._map).hasLayer(this)&&t._popup&&t._popup.options.autoClose&&t.removeLayer(t._popup),t._popup=this,Ai.prototype.openOn.call(this,t)},onAdd:function(t){Ai.prototype.onAdd.call(this,t),t.fire("popupopen",{popup:this}),this._source&&(this._source.fire("popupopen",{popup:this},!0),this._source instanceof fi||this._source.on("preclick",Ae))},onRemove:function(t){Ai.prototype.onRemove.call(this,t),t.fire("popupclose",{popup:this}),this._source&&(this._source.fire("popupclose",{popup:this},!0),this._source instanceof fi||this._source.off("preclick",Ae))},getEvents:function(){var t=Ai.prototype.getEvents.call(this);return(void 0!==this.options.closeOnClick?this.options.closeOnClick:this._map.options.closePopupOnClick)&&(t.preclick=this.close),this.options.keepInView&&(t.moveend=this._adjustPan),t},_initLayout:function(){var t="leaflet-popup",e=this._container=P("div",t+" "+(this.options.className||"")+" leaflet-zoom-animated"),i=this._wrapper=P("div",t+"-content-wrapper",e);this._contentNode=P("div",t+"-content",i),Ie(e),Be(this._contentNode),S(e,"contextmenu",Ae),this._tipContainer=P("div",t+"-tip-container",e),this._tip=P("div",t+"-tip",this._tipContainer),this.options.closeButton&&((i=this._closeButton=P("a",t+"-close-button",e)).setAttribute("role","button"),i.setAttribute("aria-label","Close popup"),i.href="#close",i.innerHTML='<span aria-hidden="true">&#215;</span>',S(i,"click",function(t){O(t),this.close()},this))},_updateLayout:function(){var t=this._contentNode,e=t.style,i=(e.width="",e.whiteSpace="nowrap",t.offsetWidth),i=Math.min(i,this.options.maxWidth),i=(i=Math.max(i,this.options.minWidth),e.width=i+1+"px",e.whiteSpace="",e.height="",t.offsetHeight),n=this.options.maxHeight,o="leaflet-popup-scrolled";(n&&n<i?(e.height=n+"px",M):z)(t,o),this._containerWidth=this._container.offsetWidth},_animateZoom:function(t){var t=this._map._latLngToNewLayerPoint(this._latlng,t.zoom,t.center),e=this._getAnchor();Z(this._container,t.add(e))},_adjustPan:function(){var t,e,i,n,o,s,r,a;this.options.autoPan&&(this._map._panAnim&&this._map._panAnim.stop(),this._autopanning?this._autopanning=!1:(t=this._map,e=parseInt(pe(this._container,"marginBottom"),10)||0,e=this._container.offsetHeight+e,a=this._containerWidth,(i=new p(this._containerLeft,-e-this._containerBottom))._add(Pe(this._container)),i=t.layerPointToContainerPoint(i),o=m(this.options.autoPanPadding),n=m(this.options.autoPanPaddingTopLeft||o),o=m(this.options.autoPanPaddingBottomRight||o),s=t.getSize(),r=0,i.x+a+o.x>s.x&&(r=i.x+a-s.x+o.x),i.x-r-n.x<(a=0)&&(r=i.x-n.x),i.y+e+o.y>s.y&&(a=i.y+e-s.y+o.y),i.y-a-n.y<0&&(a=i.y-n.y),(r||a)&&(this.options.keepInView&&(this._autopanning=!0),t.fire("autopanstart").panBy([r,a]))))},_getAnchor:function(){return m(this._source&&this._source._getPopupAnchor?this._source._getPopupAnchor():[0,0])}})),Ii=(A.mergeOptions({closePopupOnClick:!0}),A.include({openPopup:function(t,e,i){return this._initOverlay(Bi,t,e,i).openOn(this),this},closePopup:function(t){return(t=arguments.length?t:this._popup)&&t.close(),this}}),o.include({bindPopup:function(t,e){return this._popup=this._initOverlay(Bi,this._popup,t,e),this._popupHandlersAdded||(this.on({click:this._openPopup,keypress:this._onKeyPress,remove:this.closePopup,move:this._movePopup}),this._popupHandlersAdded=!0),this},unbindPopup:function(){return this._popup&&(this.off({click:this._openPopup,keypress:this._onKeyPress,remove:this.closePopup,move:this._movePopup}),this._popupHandlersAdded=!1,this._popup=null),this},openPopup:function(t){return this._popup&&(this instanceof ci||(this._popup._source=this),this._popup._prepareOpen(t||this._latlng)&&this._popup.openOn(this._map)),this},closePopup:function(){return this._popup&&this._popup.close(),this},togglePopup:function(){return this._popup&&this._popup.toggle(this),this},isPopupOpen:function(){return!!this._popup&&this._popup.isOpen()},setPopupContent:function(t){return this._popup&&this._popup.setContent(t),this},getPopup:function(){return this._popup},_openPopup:function(t){var e;this._popup&&this._map&&(Re(t),e=t.layer||t.target,this._popup._source!==e||e instanceof fi?(this._popup._source=e,this.openPopup(t.latlng)):this._map.hasLayer(this._popup)?this.closePopup():this.openPopup(t.latlng))},_movePopup:function(t){this._popup.setLatLng(t.latlng)},_onKeyPress:function(t){13===t.originalEvent.keyCode&&this._openPopup(t)}}),Ai.extend({options:{pane:"tooltipPane",offset:[0,0],direction:"auto",permanent:!1,sticky:!1,opacity:.9},onAdd:function(t){Ai.prototype.onAdd.call(this,t),this.setOpacity(this.options.opacity),t.fire("tooltipopen",{tooltip:this}),this._source&&(this.addEventParent(this._source),this._source.fire("tooltipopen",{tooltip:this},!0))},onRemove:function(t){Ai.prototype.onRemove.call(this,t),t.fire("tooltipclose",{tooltip:this}),this._source&&(this.removeEventParent(this._source),this._source.fire("tooltipclose",{tooltip:this},!0))},getEvents:function(){var t=Ai.prototype.getEvents.call(this);return this.options.permanent||(t.preclick=this.close),t},_initLayout:function(){var t="leaflet-tooltip "+(this.options.className||"")+" leaflet-zoom-"+(this._zoomAnimated?"animated":"hide");this._contentNode=this._container=P("div",t),this._container.setAttribute("role","tooltip"),this._container.setAttribute("id","leaflet-tooltip-"+h(this))},_updateLayout:function(){},_adjustPan:function(){},_setPosition:function(t){var e,i=this._map,n=this._container,o=i.latLngToContainerPoint(i.getCenter()),i=i.layerPointToContainerPoint(t),s=this.options.direction,r=n.offsetWidth,a=n.offsetHeight,h=m(this.options.offset),l=this._getAnchor(),i="top"===s?(e=r/2,a):"bottom"===s?(e=r/2,0):(e="center"===s?r/2:"right"===s?0:"left"===s?r:i.x<o.x?(s="right",0):(s="left",r+2*(h.x+l.x)),a/2);t=t.subtract(m(e,i,!0)).add(h).add(l),z(n,"leaflet-tooltip-right"),z(n,"leaflet-tooltip-left"),z(n,"leaflet-tooltip-top"),z(n,"leaflet-tooltip-bottom"),M(n,"leaflet-tooltip-"+s),Z(n,t)},_updatePosition:function(){var t=this._map.latLngToLayerPoint(this._latlng);this._setPosition(t)},setOpacity:function(t){this.options.opacity=t,this._container&&C(this._container,t)},_animateZoom:function(t){t=this._map._latLngToNewLayerPoint(this._latlng,t.zoom,t.center);this._setPosition(t)},_getAnchor:function(){return m(this._source&&this._source._getTooltipAnchor&&!this.options.sticky?this._source._getTooltipAnchor():[0,0])}})),Ri=(A.include({openTooltip:function(t,e,i){return this._initOverlay(Ii,t,e,i).openOn(this),this},closeTooltip:function(t){return t.close(),this}}),o.include({bindTooltip:function(t,e){return this._tooltip&&this.isTooltipOpen()&&this.unbindTooltip(),this._tooltip=this._initOverlay(Ii,this._tooltip,t,e),this._initTooltipInteractions(),this._tooltip.options.permanent&&this._map&&this._map.hasLayer(this)&&this.openTooltip(),this},unbindTooltip:function(){return this._tooltip&&(this._initTooltipInteractions(!0),this.closeTooltip(),this._tooltip=null),this},_initTooltipInteractions:function(t){var e,i;!t&&this._tooltipHandlersAdded||(e=t?"off":"on",i={remove:this.closeTooltip,move:this._moveTooltip},this._tooltip.options.permanent?i.add=this._openTooltip:(i.mouseover=this._openTooltip,i.mouseout=this.closeTooltip,i.click=this._openTooltip,this._map?this._addFocusListeners():i.add=this._addFocusListeners),this._tooltip.options.sticky&&(i.mousemove=this._moveTooltip),this[e](i),this._tooltipHandlersAdded=!t)},openTooltip:function(t){return this._tooltip&&(this instanceof ci||(this._tooltip._source=this),this._tooltip._prepareOpen(t)&&(this._tooltip.openOn(this._map),this.getElement?this._setAriaDescribedByOnLayer(this):this.eachLayer&&this.eachLayer(this._setAriaDescribedByOnLayer,this))),this},closeTooltip:function(){if(this._tooltip)return this._tooltip.close()},toggleTooltip:function(){return this._tooltip&&this._tooltip.toggle(this),this},isTooltipOpen:function(){return this._tooltip.isOpen()},setTooltipContent:function(t){return this._tooltip&&this._tooltip.setContent(t),this},getTooltip:function(){return this._tooltip},_addFocusListeners:function(){this.getElement?this._addFocusListenersOnLayer(this):this.eachLayer&&this.eachLayer(this._addFocusListenersOnLayer,this)},_addFocusListenersOnLayer:function(t){var e="function"==typeof t.getElement&&t.getElement();e&&(S(e,"focus",function(){this._tooltip._source=t,this.openTooltip()},this),S(e,"blur",this.closeTooltip,this))},_setAriaDescribedByOnLayer:function(t){t="function"==typeof t.getElement&&t.getElement();t&&t.setAttribute("aria-describedby",this._tooltip._container.id)},_openTooltip:function(t){var e;this._tooltip&&this._map&&(this._map.dragging&&this._map.dragging.moving()&&!this._openOnceFlag?(this._openOnceFlag=!0,(e=this)._map.once("moveend",function(){e._openOnceFlag=!1,e._openTooltip(t)})):(this._tooltip._source=t.layer||t.target,this.openTooltip(this._tooltip.options.sticky?t.latlng:void 0)))},_moveTooltip:function(t){var e=t.latlng;this._tooltip.options.sticky&&t.originalEvent&&(t=this._map.mouseEventToContainerPoint(t.originalEvent),t=this._map.containerPointToLayerPoint(t),e=this._map.layerPointToLatLng(t)),this._tooltip.setLatLng(e)}}),di.extend({options:{iconSize:[12,12],html:!1,bgPos:null,className:"leaflet-div-icon"},createIcon:function(t){var t=t&&"DIV"===t.tagName?t:document.createElement("div"),e=this.options;return e.html instanceof Element?(me(t),t.appendChild(e.html)):t.innerHTML=!1!==e.html?e.html:"",e.bgPos&&(e=m(e.bgPos),t.style.backgroundPosition=-e.x+"px "+-e.y+"px"),this._setIconStyles(t,"icon"),t},createShadow:function(){return null}}));di.Default=_i;var Ni=o.extend({options:{tileSize:256,opacity:1,updateWhenIdle:b.mobile,updateWhenZooming:!0,updateInterval:200,zIndex:1,bounds:null,minZoom:0,maxZoom:void 0,maxNativeZoom:void 0,minNativeZoom:void 0,noWrap:!1,pane:"tilePane",className:"",keepBuffer:2},initialize:function(t){c(this,t)},onAdd:function(){this._initContainer(),this._levels={},this._tiles={},this._resetView()},beforeAdd:function(t){t._addZoomLimit(this)},onRemove:function(t){this._removeAllTiles(),T(this._container),t._removeZoomLimit(this),this._container=null,this._tileZoom=void 0},bringToFront:function(){return this._map&&(fe(this._container),this._setAutoZIndex(Math.max)),this},bringToBack:function(){return this._map&&(ge(this._container),this._setAutoZIndex(Math.min)),this},getContainer:function(){return this._container},setOpacity:function(t){return this.options.opacity=t,this._updateOpacity(),this},setZIndex:function(t){return this.options.zIndex=t,this._updateZIndex(),this},isLoading:function(){return this._loading},redraw:function(){var t;return this._map&&(this._removeAllTiles(),(t=this._clampZoom(this._map.getZoom()))!==this._tileZoom&&(this._tileZoom=t,this._updateLevels()),this._update()),this},getEvents:function(){var t={viewprereset:this._invalidateAll,viewreset:this._resetView,zoom:this._resetView,moveend:this._onMoveEnd};return this.options.updateWhenIdle||(this._onMove||(this._onMove=j(this._onMoveEnd,this.options.updateInterval,this)),t.move=this._onMove),this._zoomAnimated&&(t.zoomanim=this._animateZoom),t},createTile:function(){return document.createElement("div")},getTileSize:function(){var t=this.options.tileSize;return t instanceof p?t:new p(t,t)},_updateZIndex:function(){this._container&&void 0!==this.options.zIndex&&null!==this.options.zIndex&&(this._container.style.zIndex=this.options.zIndex)},_setAutoZIndex:function(t){for(var e,i=this.getPane().children,n=-t(-1/0,1/0),o=0,s=i.length;o<s;o++)e=i[o].style.zIndex,i[o]!==this._container&&e&&(n=t(n,+e));isFinite(n)&&(this.options.zIndex=n+t(-1,1),this._updateZIndex())},_updateOpacity:function(){if(this._map&&!b.ielt9){C(this._container,this.options.opacity);var t,e=+new Date,i=!1,n=!1;for(t in this._tiles){var o,s=this._tiles[t];s.current&&s.loaded&&(o=Math.min(1,(e-s.loaded)/200),C(s.el,o),o<1?i=!0:(s.active?n=!0:this._onOpaqueTile(s),s.active=!0))}n&&!this._noPrune&&this._pruneTiles(),i&&(r(this._fadeFrame),this._fadeFrame=x(this._updateOpacity,this))}},_onOpaqueTile:u,_initContainer:function(){this._container||(this._container=P("div","leaflet-layer "+(this.options.className||"")),this._updateZIndex(),this.options.opacity<1&&this._updateOpacity(),this.getPane().appendChild(this._container))},_updateLevels:function(){var t=this._tileZoom,e=this.options.maxZoom;if(void 0!==t){for(var i in this._levels)i=Number(i),this._levels[i].el.children.length||i===t?(this._levels[i].el.style.zIndex=e-Math.abs(t-i),this._onUpdateLevel(i)):(T(this._levels[i].el),this._removeTilesAtZoom(i),this._onRemoveLevel(i),delete this._levels[i]);var n=this._levels[t],o=this._map;return n||((n=this._levels[t]={}).el=P("div","leaflet-tile-container leaflet-zoom-animated",this._container),n.el.style.zIndex=e,n.origin=o.project(o.unproject(o.getPixelOrigin()),t).round(),n.zoom=t,this._setZoomTransform(n,o.getCenter(),o.getZoom()),u(n.el.offsetWidth),this._onCreateLevel(n)),this._level=n}},_onUpdateLevel:u,_onRemoveLevel:u,_onCreateLevel:u,_pruneTiles:function(){if(this._map){var t,e,i,n=this._map.getZoom();if(n>this.options.maxZoom||n<this.options.minZoom)this._removeAllTiles();else{for(t in this._tiles)(i=this._tiles[t]).retain=i.current;for(t in this._tiles)(i=this._tiles[t]).current&&!i.active&&(e=i.coords,this._retainParent(e.x,e.y,e.z,e.z-5)||this._retainChildren(e.x,e.y,e.z,e.z+2));for(t in this._tiles)this._tiles[t].retain||this._removeTile(t)}}},_removeTilesAtZoom:function(t){for(var e in this._tiles)this._tiles[e].coords.z===t&&this._removeTile(e)},_removeAllTiles:function(){for(var t in this._tiles)this._removeTile(t)},_invalidateAll:function(){for(var t in this._levels)T(this._levels[t].el),this._onRemoveLevel(Number(t)),delete this._levels[t];this._removeAllTiles(),this._tileZoom=void 0},_retainParent:function(t,e,i,n){var t=Math.floor(t/2),e=Math.floor(e/2),i=i-1,o=new p(+t,+e),o=(o.z=i,this._tileCoordsToKey(o)),o=this._tiles[o];return o&&o.active?o.retain=!0:(o&&o.loaded&&(o.retain=!0),n<i&&this._retainParent(t,e,i,n))},_retainChildren:function(t,e,i,n){for(var o=2*t;o<2*t+2;o++)for(var s=2*e;s<2*e+2;s++){var r=new p(o,s),r=(r.z=i+1,this._tileCoordsToKey(r)),r=this._tiles[r];r&&r.active?r.retain=!0:(r&&r.loaded&&(r.retain=!0),i+1<n&&this._retainChildren(o,s,i+1,n))}},_resetView:function(t){t=t&&(t.pinch||t.flyTo);this._setView(this._map.getCenter(),this._map.getZoom(),t,t)},_animateZoom:function(t){this._setView(t.center,t.zoom,!0,t.noUpdate)},_clampZoom:function(t){var e=this.options;return void 0!==e.minNativeZoom&&t<e.minNativeZoom?e.minNativeZoom:void 0!==e.maxNativeZoom&&e.maxNativeZoom<t?e.maxNativeZoom:t},_setView:function(t,e,i,n){var o=Math.round(e),o=void 0!==this.options.maxZoom&&o>this.options.maxZoom||void 0!==this.options.minZoom&&o<this.options.minZoom?void 0:this._clampZoom(o),s=this.options.updateWhenZooming&&o!==this._tileZoom;n&&!s||(this._tileZoom=o,this._abortLoading&&this._abortLoading(),this._updateLevels(),this._resetGrid(),void 0!==o&&this._update(t),i||this._pruneTiles(),this._noPrune=!!i),this._setZoomTransforms(t,e)},_setZoomTransforms:function(t,e){for(var i in this._levels)this._setZoomTransform(this._levels[i],t,e)},_setZoomTransform:function(t,e,i){var n=this._map.getZoomScale(i,t.zoom),e=t.origin.multiplyBy(n).subtract(this._map._getNewPixelOrigin(e,i)).round();b.any3d?be(t.el,e,n):Z(t.el,e)},_resetGrid:function(){var t=this._map,e=t.options.crs,i=this._tileSize=this.getTileSize(),n=this._tileZoom,o=this._map.getPixelWorldBounds(this._tileZoom);o&&(this._globalTileRange=this._pxBoundsToTileRange(o)),this._wrapX=e.wrapLng&&!this.options.noWrap&&[Math.floor(t.project([0,e.wrapLng[0]],n).x/i.x),Math.ceil(t.project([0,e.wrapLng[1]],n).x/i.y)],this._wrapY=e.wrapLat&&!this.options.noWrap&&[Math.floor(t.project([e.wrapLat[0],0],n).y/i.x),Math.ceil(t.project([e.wrapLat[1],0],n).y/i.y)]},_onMoveEnd:function(){this._map&&!this._map._animatingZoom&&this._update()},_getTiledPixelBounds:function(t){var e=this._map,i=e._animatingZoom?Math.max(e._animateToZoom,e.getZoom()):e.getZoom(),i=e.getZoomScale(i,this._tileZoom),t=e.project(t,this._tileZoom).floor(),e=e.getSize().divideBy(2*i);return new f(t.subtract(e),t.add(e))},_update:function(t){var e=this._map;if(e){var i=this._clampZoom(e.getZoom());if(void 0===t&&(t=e.getCenter()),void 0!==this._tileZoom){var n,e=this._getTiledPixelBounds(t),o=this._pxBoundsToTileRange(e),s=o.getCenter(),r=[],e=this.options.keepBuffer,a=new f(o.getBottomLeft().subtract([e,-e]),o.getTopRight().add([e,-e]));if(!(isFinite(o.min.x)&&isFinite(o.min.y)&&isFinite(o.max.x)&&isFinite(o.max.y)))throw new Error("Attempted to load an infinite number of tiles");for(n in this._tiles){var h=this._tiles[n].coords;h.z===this._tileZoom&&a.contains(new p(h.x,h.y))||(this._tiles[n].current=!1)}if(1<Math.abs(i-this._tileZoom))this._setView(t,i);else{for(var l=o.min.y;l<=o.max.y;l++)for(var u=o.min.x;u<=o.max.x;u++){var c,d=new p(u,l);d.z=this._tileZoom,this._isValidTile(d)&&((c=this._tiles[this._tileCoordsToKey(d)])?c.current=!0:r.push(d))}if(r.sort(function(t,e){return t.distanceTo(s)-e.distanceTo(s)}),0!==r.length){this._loading||(this._loading=!0,this.fire("loading"));for(var _=document.createDocumentFragment(),u=0;u<r.length;u++)this._addTile(r[u],_);this._level.el.appendChild(_)}}}}},_isValidTile:function(t){var e=this._map.options.crs;if(!e.infinite){var i=this._globalTileRange;if(!e.wrapLng&&(t.x<i.min.x||t.x>i.max.x)||!e.wrapLat&&(t.y<i.min.y||t.y>i.max.y))return!1}return!this.options.bounds||(e=this._tileCoordsToBounds(t),g(this.options.bounds).overlaps(e))},_keyToBounds:function(t){return this._tileCoordsToBounds(this._keyToTileCoords(t))},_tileCoordsToNwSe:function(t){var e=this._map,i=this.getTileSize(),n=t.scaleBy(i),i=n.add(i);return[e.unproject(n,t.z),e.unproject(i,t.z)]},_tileCoordsToBounds:function(t){t=this._tileCoordsToNwSe(t),t=new s(t[0],t[1]);return t=this.options.noWrap?t:this._map.wrapLatLngBounds(t)},_tileCoordsToKey:function(t){return t.x+":"+t.y+":"+t.z},_keyToTileCoords:function(t){var t=t.split(":"),e=new p(+t[0],+t[1]);return e.z=+t[2],e},_removeTile:function(t){var e=this._tiles[t];e&&(T(e.el),delete this._tiles[t],this.fire("tileunload",{tile:e.el,coords:this._keyToTileCoords(t)}))},_initTile:function(t){M(t,"leaflet-tile");var e=this.getTileSize();t.style.width=e.x+"px",t.style.height=e.y+"px",t.onselectstart=u,t.onmousemove=u,b.ielt9&&this.options.opacity<1&&C(t,this.options.opacity)},_addTile:function(t,e){var i=this._getTilePos(t),n=this._tileCoordsToKey(t),o=this.createTile(this._wrapCoords(t),a(this._tileReady,this,t));this._initTile(o),this.createTile.length<2&&x(a(this._tileReady,this,t,null,o)),Z(o,i),this._tiles[n]={el:o,coords:t,current:!0},e.appendChild(o),this.fire("tileloadstart",{tile:o,coords:t})},_tileReady:function(t,e,i){e&&this.fire("tileerror",{error:e,tile:i,coords:t});var n=this._tileCoordsToKey(t);(i=this._tiles[n])&&(i.loaded=+new Date,this._map._fadeAnimated?(C(i.el,0),r(this._fadeFrame),this._fadeFrame=x(this._updateOpacity,this)):(i.active=!0,this._pruneTiles()),e||(M(i.el,"leaflet-tile-loaded"),this.fire("tileload",{tile:i.el,coords:t})),this._noTilesToLoad()&&(this._loading=!1,this.fire("load"),b.ielt9||!this._map._fadeAnimated?x(this._pruneTiles,this):setTimeout(a(this._pruneTiles,this),250)))},_getTilePos:function(t){return t.scaleBy(this.getTileSize()).subtract(this._level.origin)},_wrapCoords:function(t){var e=new p(this._wrapX?H(t.x,this._wrapX):t.x,this._wrapY?H(t.y,this._wrapY):t.y);return e.z=t.z,e},_pxBoundsToTileRange:function(t){var e=this.getTileSize();return new f(t.min.unscaleBy(e).floor(),t.max.unscaleBy(e).ceil().subtract([1,1]))},_noTilesToLoad:function(){for(var t in this._tiles)if(!this._tiles[t].loaded)return!1;return!0}});var Di=Ni.extend({options:{minZoom:0,maxZoom:18,subdomains:"abc",errorTileUrl:"",zoomOffset:0,tms:!1,zoomReverse:!1,detectRetina:!1,crossOrigin:!1,referrerPolicy:!1},initialize:function(t,e){this._url=t,(e=c(this,e)).detectRetina&&b.retina&&0<e.maxZoom?(e.tileSize=Math.floor(e.tileSize/2),e.zoomReverse?(e.zoomOffset--,e.minZoom=Math.min(e.maxZoom,e.minZoom+1)):(e.zoomOffset++,e.maxZoom=Math.max(e.minZoom,e.maxZoom-1)),e.minZoom=Math.max(0,e.minZoom)):e.zoomReverse?e.minZoom=Math.min(e.maxZoom,e.minZoom):e.maxZoom=Math.max(e.minZoom,e.maxZoom),"string"==typeof e.subdomains&&(e.subdomains=e.subdomains.split("")),this.on("tileunload",this._onTileRemove)},setUrl:function(t,e){return this._url===t&&void 0===e&&(e=!0),this._url=t,e||this.redraw(),this},createTile:function(t,e){var i=document.createElement("img");return S(i,"load",a(this._tileOnLoad,this,e,i)),S(i,"error",a(this._tileOnError,this,e,i)),!this.options.crossOrigin&&""!==this.options.crossOrigin||(i.crossOrigin=!0===this.options.crossOrigin?"":this.options.crossOrigin),"string"==typeof this.options.referrerPolicy&&(i.referrerPolicy=this.options.referrerPolicy),i.alt="",i.src=this.getTileUrl(t),i},getTileUrl:function(t){var e={r:b.retina?"@2x":"",s:this._getSubdomain(t),x:t.x,y:t.y,z:this._getZoomForUrl()};return this._map&&!this._map.options.crs.infinite&&(t=this._globalTileRange.max.y-t.y,this.options.tms&&(e.y=t),e["-y"]=t),q(this._url,l(e,this.options))},_tileOnLoad:function(t,e){b.ielt9?setTimeout(a(t,this,null,e),0):t(null,e)},_tileOnError:function(t,e,i){var n=this.options.errorTileUrl;n&&e.getAttribute("src")!==n&&(e.src=n),t(i,e)},_onTileRemove:function(t){t.tile.onload=null},_getZoomForUrl:function(){var t=this._tileZoom,e=this.options.maxZoom;return(t=this.options.zoomReverse?e-t:t)+this.options.zoomOffset},_getSubdomain:function(t){t=Math.abs(t.x+t.y)%this.options.subdomains.length;return this.options.subdomains[t]},_abortLoading:function(){var t,e,i;for(t in this._tiles)this._tiles[t].coords.z!==this._tileZoom&&((i=this._tiles[t].el).onload=u,i.onerror=u,i.complete||(i.src=K,e=this._tiles[t].coords,T(i),delete this._tiles[t],this.fire("tileabort",{tile:i,coords:e})))},_removeTile:function(t){var e=this._tiles[t];if(e)return e.el.setAttribute("src",K),Ni.prototype._removeTile.call(this,t)},_tileReady:function(t,e,i){if(this._map&&(!i||i.getAttribute("src")!==K))return Ni.prototype._tileReady.call(this,t,e,i)}});function ji(t,e){return new Di(t,e)}var Hi=Di.extend({defaultWmsParams:{service:"WMS",request:"GetMap",layers:"",styles:"",format:"image/jpeg",transparent:!1,version:"1.1.1"},options:{crs:null,uppercase:!1},initialize:function(t,e){this._url=t;var i,n=l({},this.defaultWmsParams);for(i in e)i in this.options||(n[i]=e[i]);var t=(e=c(this,e)).detectRetina&&b.retina?2:1,o=this.getTileSize();n.width=o.x*t,n.height=o.y*t,this.wmsParams=n},onAdd:function(t){this._crs=this.options.crs||t.options.crs,this._wmsVersion=parseFloat(this.wmsParams.version);var e=1.3<=this._wmsVersion?"crs":"srs";this.wmsParams[e]=this._crs.code,Di.prototype.onAdd.call(this,t)},getTileUrl:function(t){var e=this._tileCoordsToNwSe(t),i=this._crs,i=_(i.project(e[0]),i.project(e[1])),e=i.min,i=i.max,e=(1.3<=this._wmsVersion&&this._crs===li?[e.y,e.x,i.y,i.x]:[e.x,e.y,i.x,i.y]).join(","),i=Di.prototype.getTileUrl.call(this,t);return i+U(this.wmsParams,i,this.options.uppercase)+(this.options.uppercase?"&BBOX=":"&bbox=")+e},setParams:function(t,e){return l(this.wmsParams,t),e||this.redraw(),this}});Di.WMS=Hi,ji.wms=function(t,e){return new Hi(t,e)};var Wi=o.extend({options:{padding:.1},initialize:function(t){c(this,t),h(this),this._layers=this._layers||{}},onAdd:function(){this._container||(this._initContainer(),M(this._container,"leaflet-zoom-animated")),this.getPane().appendChild(this._container),this._update(),this.on("update",this._updatePaths,this)},onRemove:function(){this.off("update",this._updatePaths,this),this._destroyContainer()},getEvents:function(){var t={viewreset:this._reset,zoom:this._onZoom,moveend:this._update,zoomend:this._onZoomEnd};return this._zoomAnimated&&(t.zoomanim=this._onAnimZoom),t},_onAnimZoom:function(t){this._updateTransform(t.center,t.zoom)},_onZoom:function(){this._updateTransform(this._map.getCenter(),this._map.getZoom())},_updateTransform:function(t,e){var i=this._map.getZoomScale(e,this._zoom),n=this._map.getSize().multiplyBy(.5+this.options.padding),o=this._map.project(this._center,e),n=n.multiplyBy(-i).add(o).subtract(this._map._getNewPixelOrigin(t,e));b.any3d?be(this._container,n,i):Z(this._container,n)},_reset:function(){for(var t in this._update(),this._updateTransform(this._center,this._zoom),this._layers)this._layers[t]._reset()},_onZoomEnd:function(){for(var t in this._layers)this._layers[t]._project()},_updatePaths:function(){for(var t in this._layers)this._layers[t]._update()},_update:function(){var t=this.options.padding,e=this._map.getSize(),i=this._map.containerPointToLayerPoint(e.multiplyBy(-t)).round();this._bounds=new f(i,i.add(e.multiplyBy(1+2*t)).round()),this._center=this._map.getCenter(),this._zoom=this._map.getZoom()}}),Fi=Wi.extend({options:{tolerance:0},getEvents:function(){var t=Wi.prototype.getEvents.call(this);return t.viewprereset=this._onViewPreReset,t},_onViewPreReset:function(){this._postponeUpdatePaths=!0},onAdd:function(){Wi.prototype.onAdd.call(this),this._draw()},_initContainer:function(){var t=this._container=document.createElement("canvas");S(t,"mousemove",this._onMouseMove,this),S(t,"click dblclick mousedown mouseup contextmenu",this._onClick,this),S(t,"mouseout",this._handleMouseOut,this),t._leaflet_disable_events=!0,this._ctx=t.getContext("2d")},_destroyContainer:function(){r(this._redrawRequest),delete this._ctx,T(this._container),k(this._container),delete this._container},_updatePaths:function(){if(!this._postponeUpdatePaths){for(var t in this._redrawBounds=null,this._layers)this._layers[t]._update();this._redraw()}},_update:function(){var t,e,i,n;this._map._animatingZoom&&this._bounds||(Wi.prototype._update.call(this),t=this._bounds,e=this._container,i=t.getSize(),n=b.retina?2:1,Z(e,t.min),e.width=n*i.x,e.height=n*i.y,e.style.width=i.x+"px",e.style.height=i.y+"px",b.retina&&this._ctx.scale(2,2),this._ctx.translate(-t.min.x,-t.min.y),this.fire("update"))},_reset:function(){Wi.prototype._reset.call(this),this._postponeUpdatePaths&&(this._postponeUpdatePaths=!1,this._updatePaths())},_initPath:function(t){this._updateDashArray(t);t=(this._layers[h(t)]=t)._order={layer:t,prev:this._drawLast,next:null};this._drawLast&&(this._drawLast.next=t),this._drawLast=t,this._drawFirst=this._drawFirst||this._drawLast},_addPath:function(t){this._requestRedraw(t)},_removePath:function(t){var e=t._order,i=e.next,e=e.prev;i?i.prev=e:this._drawLast=e,e?e.next=i:this._drawFirst=i,delete t._order,delete this._layers[h(t)],this._requestRedraw(t)},_updatePath:function(t){this._extendRedrawBounds(t),t._project(),t._update(),this._requestRedraw(t)},_updateStyle:function(t){this._updateDashArray(t),this._requestRedraw(t)},_updateDashArray:function(t){if("string"==typeof t.options.dashArray){for(var e,i=t.options.dashArray.split(/[, ]+/),n=[],o=0;o<i.length;o++){if(e=Number(i[o]),isNaN(e))return;n.push(e)}t.options._dashArray=n}else t.options._dashArray=t.options.dashArray},_requestRedraw:function(t){this._map&&(this._extendRedrawBounds(t),this._redrawRequest=this._redrawRequest||x(this._redraw,this))},_extendRedrawBounds:function(t){var e;t._pxBounds&&(e=(t.options.weight||0)+1,this._redrawBounds=this._redrawBounds||new f,this._redrawBounds.extend(t._pxBounds.min.subtract([e,e])),this._redrawBounds.extend(t._pxBounds.max.add([e,e])))},_redraw:function(){this._redrawRequest=null,this._redrawBounds&&(this._redrawBounds.min._floor(),this._redrawBounds.max._ceil()),this._clear(),this._draw(),this._redrawBounds=null},_clear:function(){var t,e=this._redrawBounds;e?(t=e.getSize(),this._ctx.clearRect(e.min.x,e.min.y,t.x,t.y)):(this._ctx.save(),this._ctx.setTransform(1,0,0,1,0,0),this._ctx.clearRect(0,0,this._container.width,this._container.height),this._ctx.restore())},_draw:function(){var t,e,i=this._redrawBounds;this._ctx.save(),i&&(e=i.getSize(),this._ctx.beginPath(),this._ctx.rect(i.min.x,i.min.y,e.x,e.y),this._ctx.clip()),this._drawing=!0;for(var n=this._drawFirst;n;n=n.next)t=n.layer,(!i||t._pxBounds&&t._pxBounds.intersects(i))&&t._updatePath();this._drawing=!1,this._ctx.restore()},_updatePoly:function(t,e){if(this._drawing){var i,n,o,s,r=t._parts,a=r.length,h=this._ctx;if(a){for(h.beginPath(),i=0;i<a;i++){for(n=0,o=r[i].length;n<o;n++)s=r[i][n],h[n?"lineTo":"moveTo"](s.x,s.y);e&&h.closePath()}this._fillStroke(h,t)}}},_updateCircle:function(t){var e,i,n,o;this._drawing&&!t._empty()&&(e=t._point,i=this._ctx,n=Math.max(Math.round(t._radius),1),1!=(o=(Math.max(Math.round(t._radiusY),1)||n)/n)&&(i.save(),i.scale(1,o)),i.beginPath(),i.arc(e.x,e.y/o,n,0,2*Math.PI,!1),1!=o&&i.restore(),this._fillStroke(i,t))},_fillStroke:function(t,e){var i=e.options;i.fill&&(t.globalAlpha=i.fillOpacity,t.fillStyle=i.fillColor||i.color,t.fill(i.fillRule||"evenodd")),i.stroke&&0!==i.weight&&(t.setLineDash&&t.setLineDash(e.options&&e.options._dashArray||[]),t.globalAlpha=i.opacity,t.lineWidth=i.weight,t.strokeStyle=i.color,t.lineCap=i.lineCap,t.lineJoin=i.lineJoin,t.stroke())},_onClick:function(t){for(var e,i,n=this._map.mouseEventToLayerPoint(t),o=this._drawFirst;o;o=o.next)(e=o.layer).options.interactive&&e._containsPoint(n)&&(("click"===t.type||"preclick"===t.type)&&this._map._draggableMoved(e)||(i=e));this._fireEvent(!!i&&[i],t)},_onMouseMove:function(t){var e;!this._map||this._map.dragging.moving()||this._map._animatingZoom||(e=this._map.mouseEventToLayerPoint(t),this._handleMouseHover(t,e))},_handleMouseOut:function(t){var e=this._hoveredLayer;e&&(z(this._container,"leaflet-interactive"),this._fireEvent([e],t,"mouseout"),this._hoveredLayer=null,this._mouseHoverThrottled=!1)},_handleMouseHover:function(t,e){if(!this._mouseHoverThrottled){for(var i,n,o=this._drawFirst;o;o=o.next)(i=o.layer).options.interactive&&i._containsPoint(e)&&(n=i);n!==this._hoveredLayer&&(this._handleMouseOut(t),n&&(M(this._container,"leaflet-interactive"),this._fireEvent([n],t,"mouseover"),this._hoveredLayer=n)),this._fireEvent(!!this._hoveredLayer&&[this._hoveredLayer],t),this._mouseHoverThrottled=!0,setTimeout(a(function(){this._mouseHoverThrottled=!1},this),32)}},_fireEvent:function(t,e,i){this._map._fireDOMEvent(e,i||e.type,t)},_bringToFront:function(t){var e,i,n=t._order;n&&(e=n.next,i=n.prev,e&&((e.prev=i)?i.next=e:e&&(this._drawFirst=e),n.prev=this._drawLast,(this._drawLast.next=n).next=null,this._drawLast=n,this._requestRedraw(t)))},_bringToBack:function(t){var e,i,n=t._order;n&&(e=n.next,(i=n.prev)&&((i.next=e)?e.prev=i:i&&(this._drawLast=i),n.prev=null,n.next=this._drawFirst,this._drawFirst.prev=n,this._drawFirst=n,this._requestRedraw(t)))}});function Ui(t){return b.canvas?new Fi(t):null}var Vi=function(){try{return document.namespaces.add("lvml","urn:schemas-microsoft-com:vml"),function(t){return document.createElement("<lvml:"+t+' class="lvml">')}}catch(t){}return function(t){return document.createElement("<"+t+' xmlns="urn:schemas-microsoft.com:vml" class="lvml">')}}(),zt={_initContainer:function(){this._container=P("div","leaflet-vml-container")},_update:function(){this._map._animatingZoom||(Wi.prototype._update.call(this),this.fire("update"))},_initPath:function(t){var e=t._container=Vi("shape");M(e,"leaflet-vml-shape "+(this.options.className||"")),e.coordsize="1 1",t._path=Vi("path"),e.appendChild(t._path),this._updateStyle(t),this._layers[h(t)]=t},_addPath:function(t){var e=t._container;this._container.appendChild(e),t.options.interactive&&t.addInteractiveTarget(e)},_removePath:function(t){var e=t._container;T(e),t.removeInteractiveTarget(e),delete this._layers[h(t)]},_updateStyle:function(t){var e=t._stroke,i=t._fill,n=t.options,o=t._container;o.stroked=!!n.stroke,o.filled=!!n.fill,n.stroke?(e=e||(t._stroke=Vi("stroke")),o.appendChild(e),e.weight=n.weight+"px",e.color=n.color,e.opacity=n.opacity,n.dashArray?e.dashStyle=d(n.dashArray)?n.dashArray.join(" "):n.dashArray.replace(/( *, *)/g," "):e.dashStyle="",e.endcap=n.lineCap.replace("butt","flat"),e.joinstyle=n.lineJoin):e&&(o.removeChild(e),t._stroke=null),n.fill?(i=i||(t._fill=Vi("fill")),o.appendChild(i),i.color=n.fillColor||n.color,i.opacity=n.fillOpacity):i&&(o.removeChild(i),t._fill=null)},_updateCircle:function(t){var e=t._point.round(),i=Math.round(t._radius),n=Math.round(t._radiusY||i);this._setPath(t,t._empty()?"M0 0":"AL "+e.x+","+e.y+" "+i+","+n+" 0,23592600")},_setPath:function(t,e){t._path.v=e},_bringToFront:function(t){fe(t._container)},_bringToBack:function(t){ge(t._container)}},qi=b.vml?Vi:ct,Gi=Wi.extend({_initContainer:function(){this._container=qi("svg"),this._container.setAttribute("pointer-events","none"),this._rootGroup=qi("g"),this._container.appendChild(this._rootGroup)},_destroyContainer:function(){T(this._container),k(this._container),delete this._container,delete this._rootGroup,delete this._svgSize},_update:function(){var t,e,i;this._map._animatingZoom&&this._bounds||(Wi.prototype._update.call(this),e=(t=this._bounds).getSize(),i=this._container,this._svgSize&&this._svgSize.equals(e)||(this._svgSize=e,i.setAttribute("width",e.x),i.setAttribute("height",e.y)),Z(i,t.min),i.setAttribute("viewBox",[t.min.x,t.min.y,e.x,e.y].join(" ")),this.fire("update"))},_initPath:function(t){var e=t._path=qi("path");t.options.className&&M(e,t.options.className),t.options.interactive&&M(e,"leaflet-interactive"),this._updateStyle(t),this._layers[h(t)]=t},_addPath:function(t){this._rootGroup||this._initContainer(),this._rootGroup.appendChild(t._path),t.addInteractiveTarget(t._path)},_removePath:function(t){T(t._path),t.removeInteractiveTarget(t._path),delete this._layers[h(t)]},_updatePath:function(t){t._project(),t._update()},_updateStyle:function(t){var e=t._path,t=t.options;e&&(t.stroke?(e.setAttribute("stroke",t.color),e.setAttribute("stroke-opacity",t.opacity),e.setAttribute("stroke-width",t.weight),e.setAttribute("stroke-linecap",t.lineCap),e.setAttribute("stroke-linejoin",t.lineJoin),t.dashArray?e.setAttribute("stroke-dasharray",t.dashArray):e.removeAttribute("stroke-dasharray"),t.dashOffset?e.setAttribute("stroke-dashoffset",t.dashOffset):e.removeAttribute("stroke-dashoffset")):e.setAttribute("stroke","none"),t.fill?(e.setAttribute("fill",t.fillColor||t.color),e.setAttribute("fill-opacity",t.fillOpacity),e.setAttribute("fill-rule",t.fillRule||"evenodd")):e.setAttribute("fill","none"))},_updatePoly:function(t,e){this._setPath(t,dt(t._parts,e))},_updateCircle:function(t){var e=t._point,i=Math.max(Math.round(t._radius),1),n="a"+i+","+(Math.max(Math.round(t._radiusY),1)||i)+" 0 1,0 ",e=t._empty()?"M0 0":"M"+(e.x-i)+","+e.y+n+2*i+",0 "+n+2*-i+",0 ";this._setPath(t,e)},_setPath:function(t,e){t._path.setAttribute("d",e)},_bringToFront:function(t){fe(t._path)},_bringToBack:function(t){ge(t._path)}});function Ki(t){return b.svg||b.vml?new Gi(t):null}b.vml&&Gi.include(zt),A.include({getRenderer:function(t){t=(t=t.options.renderer||this._getPaneRenderer(t.options.pane)||this.options.renderer||this._renderer)||(this._renderer=this._createRenderer());return this.hasLayer(t)||this.addLayer(t),t},_getPaneRenderer:function(t){var e;return"overlayPane"!==t&&void 0!==t&&(void 0===(e=this._paneRenderers[t])&&(e=this._createRenderer({pane:t}),this._paneRenderers[t]=e),e)},_createRenderer:function(t){return this.options.preferCanvas&&Ui(t)||Ki(t)}});var Yi=xi.extend({initialize:function(t,e){xi.prototype.initialize.call(this,this._boundsToLatLngs(t),e)},setBounds:function(t){return this.setLatLngs(this._boundsToLatLngs(t))},_boundsToLatLngs:function(t){return[(t=g(t)).getSouthWest(),t.getNorthWest(),t.getNorthEast(),t.getSouthEast()]}});Gi.create=qi,Gi.pointsToPath=dt,wi.geometryToLayer=bi,wi.coordsToLatLng=Li,wi.coordsToLatLngs=Ti,wi.latLngToCoords=Mi,wi.latLngsToCoords=zi,wi.getFeature=Ci,wi.asFeature=Zi,A.mergeOptions({boxZoom:!0});var _t=n.extend({initialize:function(t){this._map=t,this._container=t._container,this._pane=t._panes.overlayPane,this._resetStateTimeout=0,t.on("unload",this._destroy,this)},addHooks:function(){S(this._container,"mousedown",this._onMouseDown,this)},removeHooks:function(){k(this._container,"mousedown",this._onMouseDown,this)},moved:function(){return this._moved},_destroy:function(){T(this._pane),delete this._pane},_resetState:function(){this._resetStateTimeout=0,this._moved=!1},_clearDeferredResetState:function(){0!==this._resetStateTimeout&&(clearTimeout(this._resetStateTimeout),this._resetStateTimeout=0)},_onMouseDown:function(t){if(!t.shiftKey||1!==t.which&&1!==t.button)return!1;this._clearDeferredResetState(),this._resetState(),re(),Le(),this._startPoint=this._map.mouseEventToContainerPoint(t),S(document,{contextmenu:Re,mousemove:this._onMouseMove,mouseup:this._onMouseUp,keydown:this._onKeyDown},this)},_onMouseMove:function(t){this._moved||(this._moved=!0,this._box=P("div","leaflet-zoom-box",this._container),M(this._container,"leaflet-crosshair"),this._map.fire("boxzoomstart")),this._point=this._map.mouseEventToContainerPoint(t);var t=new f(this._point,this._startPoint),e=t.getSize();Z(this._box,t.min),this._box.style.width=e.x+"px",this._box.style.height=e.y+"px"},_finish:function(){this._moved&&(T(this._box),z(this._container,"leaflet-crosshair")),ae(),Te(),k(document,{contextmenu:Re,mousemove:this._onMouseMove,mouseup:this._onMouseUp,keydown:this._onKeyDown},this)},_onMouseUp:function(t){1!==t.which&&1!==t.button||(this._finish(),this._moved&&(this._clearDeferredResetState(),this._resetStateTimeout=setTimeout(a(this._resetState,this),0),t=new s(this._map.containerPointToLatLng(this._startPoint),this._map.containerPointToLatLng(this._point)),this._map.fitBounds(t).fire("boxzoomend",{boxZoomBounds:t})))},_onKeyDown:function(t){27===t.keyCode&&(this._finish(),this._clearDeferredResetState(),this._resetState())}}),Ct=(A.addInitHook("addHandler","boxZoom",_t),A.mergeOptions({doubleClickZoom:!0}),n.extend({addHooks:function(){this._map.on("dblclick",this._onDoubleClick,this)},removeHooks:function(){this._map.off("dblclick",this._onDoubleClick,this)},_onDoubleClick:function(t){var e=this._map,i=e.getZoom(),n=e.options.zoomDelta,i=t.originalEvent.shiftKey?i-n:i+n;"center"===e.options.doubleClickZoom?e.setZoom(i):e.setZoomAround(t.containerPoint,i)}})),Zt=(A.addInitHook("addHandler","doubleClickZoom",Ct),A.mergeOptions({dragging:!0,inertia:!0,inertiaDeceleration:3400,inertiaMaxSpeed:1/0,easeLinearity:.2,worldCopyJump:!1,maxBoundsViscosity:0}),n.extend({addHooks:function(){var t;this._draggable||(t=this._map,this._draggable=new Xe(t._mapPane,t._container),this._draggable.on({dragstart:this._onDragStart,drag:this._onDrag,dragend:this._onDragEnd},this),this._draggable.on("predrag",this._onPreDragLimit,this),t.options.worldCopyJump&&(this._draggable.on("predrag",this._onPreDragWrap,this),t.on("zoomend",this._onZoomEnd,this),t.whenReady(this._onZoomEnd,this))),M(this._map._container,"leaflet-grab leaflet-touch-drag"),this._draggable.enable(),this._positions=[],this._times=[]},removeHooks:function(){z(this._map._container,"leaflet-grab"),z(this._map._container,"leaflet-touch-drag"),this._draggable.disable()},moved:function(){return this._draggable&&this._draggable._moved},moving:function(){return this._draggable&&this._draggable._moving},_onDragStart:function(){var t,e=this._map;e._stop(),this._map.options.maxBounds&&this._map.options.maxBoundsViscosity?(t=g(this._map.options.maxBounds),this._offsetLimit=_(this._map.latLngToContainerPoint(t.getNorthWest()).multiplyBy(-1),this._map.latLngToContainerPoint(t.getSouthEast()).multiplyBy(-1).add(this._map.getSize())),this._viscosity=Math.min(1,Math.max(0,this._map.options.maxBoundsViscosity))):this._offsetLimit=null,e.fire("movestart").fire("dragstart"),e.options.inertia&&(this._positions=[],this._times=[])},_onDrag:function(t){var e,i;this._map.options.inertia&&(e=this._lastTime=+new Date,i=this._lastPos=this._draggable._absPos||this._draggable._newPos,this._positions.push(i),this._times.push(e),this._prunePositions(e)),this._map.fire("move",t).fire("drag",t)},_prunePositions:function(t){for(;1<this._positions.length&&50<t-this._times[0];)this._positions.shift(),this._times.shift()},_onZoomEnd:function(){var t=this._map.getSize().divideBy(2),e=this._map.latLngToLayerPoint([0,0]);this._initialWorldOffset=e.subtract(t).x,this._worldWidth=this._map.getPixelWorldBounds().getSize().x},_viscousLimit:function(t,e){return t-(t-e)*this._viscosity},_onPreDragLimit:function(){var t,e;this._viscosity&&this._offsetLimit&&(t=this._draggable._newPos.subtract(this._draggable._startPos),e=this._offsetLimit,t.x<e.min.x&&(t.x=this._viscousLimit(t.x,e.min.x)),t.y<e.min.y&&(t.y=this._viscousLimit(t.y,e.min.y)),t.x>e.max.x&&(t.x=this._viscousLimit(t.x,e.max.x)),t.y>e.max.y&&(t.y=this._viscousLimit(t.y,e.max.y)),this._draggable._newPos=this._draggable._startPos.add(t))},_onPreDragWrap:function(){var t=this._worldWidth,e=Math.round(t/2),i=this._initialWorldOffset,n=this._draggable._newPos.x,o=(n-e+i)%t+e-i,n=(n+e+i)%t-e-i,t=Math.abs(o+i)<Math.abs(n+i)?o:n;this._draggable._absPos=this._draggable._newPos.clone(),this._draggable._newPos.x=t},_onDragEnd:function(t){var e,i,n,o,s=this._map,r=s.options,a=!r.inertia||t.noInertia||this._times.length<2;s.fire("dragend",t),!a&&(this._prunePositions(+new Date),t=this._lastPos.subtract(this._positions[0]),a=(this._lastTime-this._times[0])/1e3,e=r.easeLinearity,a=(t=t.multiplyBy(e/a)).distanceTo([0,0]),i=Math.min(r.inertiaMaxSpeed,a),t=t.multiplyBy(i/a),n=i/(r.inertiaDeceleration*e),(o=t.multiplyBy(-n/2).round()).x||o.y)?(o=s._limitOffset(o,s.options.maxBounds),x(function(){s.panBy(o,{duration:n,easeLinearity:e,noMoveStart:!0,animate:!0})})):s.fire("moveend")}})),St=(A.addInitHook("addHandler","dragging",Zt),A.mergeOptions({keyboard:!0,keyboardPanDelta:80}),n.extend({keyCodes:{left:[37],right:[39],down:[40],up:[38],zoomIn:[187,107,61,171],zoomOut:[189,109,54,173]},initialize:function(t){this._map=t,this._setPanDelta(t.options.keyboardPanDelta),this._setZoomDelta(t.options.zoomDelta)},addHooks:function(){var t=this._map._container;t.tabIndex<=0&&(t.tabIndex="0"),S(t,{focus:this._onFocus,blur:this._onBlur,mousedown:this._onMouseDown},this),this._map.on({focus:this._addHooks,blur:this._removeHooks},this)},removeHooks:function(){this._removeHooks(),k(this._map._container,{focus:this._onFocus,blur:this._onBlur,mousedown:this._onMouseDown},this),this._map.off({focus:this._addHooks,blur:this._removeHooks},this)},_onMouseDown:function(){var t,e,i;this._focused||(i=document.body,t=document.documentElement,e=i.scrollTop||t.scrollTop,i=i.scrollLeft||t.scrollLeft,this._map._container.focus(),window.scrollTo(i,e))},_onFocus:function(){this._focused=!0,this._map.fire("focus")},_onBlur:function(){this._focused=!1,this._map.fire("blur")},_setPanDelta:function(t){for(var e=this._panKeys={},i=this.keyCodes,n=0,o=i.left.length;n<o;n++)e[i.left[n]]=[-1*t,0];for(n=0,o=i.right.length;n<o;n++)e[i.right[n]]=[t,0];for(n=0,o=i.down.length;n<o;n++)e[i.down[n]]=[0,t];for(n=0,o=i.up.length;n<o;n++)e[i.up[n]]=[0,-1*t]},_setZoomDelta:function(t){for(var e=this._zoomKeys={},i=this.keyCodes,n=0,o=i.zoomIn.length;n<o;n++)e[i.zoomIn[n]]=t;for(n=0,o=i.zoomOut.length;n<o;n++)e[i.zoomOut[n]]=-t},_addHooks:function(){S(document,"keydown",this._onKeyDown,this)},_removeHooks:function(){k(document,"keydown",this._onKeyDown,this)},_onKeyDown:function(t){if(!(t.altKey||t.ctrlKey||t.metaKey)){var e,i,n=t.keyCode,o=this._map;if(n in this._panKeys)o._panAnim&&o._panAnim._inProgress||(i=this._panKeys[n],t.shiftKey&&(i=m(i).multiplyBy(3)),o.options.maxBounds&&(i=o._limitOffset(m(i),o.options.maxBounds)),o.options.worldCopyJump?(e=o.wrapLatLng(o.unproject(o.project(o.getCenter()).add(i))),o.panTo(e)):o.panBy(i));else if(n in this._zoomKeys)o.setZoom(o.getZoom()+(t.shiftKey?3:1)*this._zoomKeys[n]);else{if(27!==n||!o._popup||!o._popup.options.closeOnEscapeKey)return;o.closePopup()}Re(t)}}})),Et=(A.addInitHook("addHandler","keyboard",St),A.mergeOptions({scrollWheelZoom:!0,wheelDebounceTime:40,wheelPxPerZoomLevel:60}),n.extend({addHooks:function(){S(this._map._container,"wheel",this._onWheelScroll,this),this._delta=0},removeHooks:function(){k(this._map._container,"wheel",this._onWheelScroll,this)},_onWheelScroll:function(t){var e=He(t),i=this._map.options.wheelDebounceTime,e=(this._delta+=e,this._lastMousePos=this._map.mouseEventToContainerPoint(t),this._startTime||(this._startTime=+new Date),Math.max(i-(+new Date-this._startTime),0));clearTimeout(this._timer),this._timer=setTimeout(a(this._performZoom,this),e),Re(t)},_performZoom:function(){var t=this._map,e=t.getZoom(),i=this._map.options.zoomSnap||0,n=(t._stop(),this._delta/(4*this._map.options.wheelPxPerZoomLevel)),n=4*Math.log(2/(1+Math.exp(-Math.abs(n))))/Math.LN2,i=i?Math.ceil(n/i)*i:n,n=t._limitZoom(e+(0<this._delta?i:-i))-e;this._delta=0,this._startTime=null,n&&("center"===t.options.scrollWheelZoom?t.setZoom(e+n):t.setZoomAround(this._lastMousePos,e+n))}})),kt=(A.addInitHook("addHandler","scrollWheelZoom",Et),A.mergeOptions({tapHold:b.touchNative&&b.safari&&b.mobile,tapTolerance:15}),n.extend({addHooks:function(){S(this._map._container,"touchstart",this._onDown,this)},removeHooks:function(){k(this._map._container,"touchstart",this._onDown,this)},_onDown:function(t){var e;clearTimeout(this._holdTimeout),1===t.touches.length&&(e=t.touches[0],this._startPos=this._newPos=new p(e.clientX,e.clientY),this._holdTimeout=setTimeout(a(function(){this._cancel(),this._isTapValid()&&(S(document,"touchend",O),S(document,"touchend touchcancel",this._cancelClickPrevent),this._simulateEvent("contextmenu",e))},this),600),S(document,"touchend touchcancel contextmenu",this._cancel,this),S(document,"touchmove",this._onMove,this))},_cancelClickPrevent:function t(){k(document,"touchend",O),k(document,"touchend touchcancel",t)},_cancel:function(){clearTimeout(this._holdTimeout),k(document,"touchend touchcancel contextmenu",this._cancel,this),k(document,"touchmove",this._onMove,this)},_onMove:function(t){t=t.touches[0];this._newPos=new p(t.clientX,t.clientY)},_isTapValid:function(){return this._newPos.distanceTo(this._startPos)<=this._map.options.tapTolerance},_simulateEvent:function(t,e){t=new MouseEvent(t,{bubbles:!0,cancelable:!0,view:window,screenX:e.screenX,screenY:e.screenY,clientX:e.clientX,clientY:e.clientY});t._simulated=!0,e.target.dispatchEvent(t)}})),Ot=(A.addInitHook("addHandler","tapHold",kt),A.mergeOptions({touchZoom:b.touch,bounceAtZoomLimits:!0}),n.extend({addHooks:function(){M(this._map._container,"leaflet-touch-zoom"),S(this._map._container,"touchstart",this._onTouchStart,this)},removeHooks:function(){z(this._map._container,"leaflet-touch-zoom"),k(this._map._container,"touchstart",this._onTouchStart,this)},_onTouchStart:function(t){var e,i,n=this._map;!t.touches||2!==t.touches.length||n._animatingZoom||this._zooming||(e=n.mouseEventToContainerPoint(t.touches[0]),i=n.mouseEventToContainerPoint(t.touches[1]),this._centerPoint=n.getSize()._divideBy(2),this._startLatLng=n.containerPointToLatLng(this._centerPoint),"center"!==n.options.touchZoom&&(this._pinchStartLatLng=n.containerPointToLatLng(e.add(i)._divideBy(2))),this._startDist=e.distanceTo(i),this._startZoom=n.getZoom(),this._moved=!1,this._zooming=!0,n._stop(),S(document,"touchmove",this._onTouchMove,this),S(document,"touchend touchcancel",this._onTouchEnd,this),O(t))},_onTouchMove:function(t){if(t.touches&&2===t.touches.length&&this._zooming){var e=this._map,i=e.mouseEventToContainerPoint(t.touches[0]),n=e.mouseEventToContainerPoint(t.touches[1]),o=i.distanceTo(n)/this._startDist;if(this._zoom=e.getScaleZoom(o,this._startZoom),!e.options.bounceAtZoomLimits&&(this._zoom<e.getMinZoom()&&o<1||this._zoom>e.getMaxZoom()&&1<o)&&(this._zoom=e._limitZoom(this._zoom)),"center"===e.options.touchZoom){if(this._center=this._startLatLng,1==o)return}else{i=i._add(n)._divideBy(2)._subtract(this._centerPoint);if(1==o&&0===i.x&&0===i.y)return;this._center=e.unproject(e.project(this._pinchStartLatLng,this._zoom).subtract(i),this._zoom)}this._moved||(e._moveStart(!0,!1),this._moved=!0),r(this._animRequest);n=a(e._move,e,this._center,this._zoom,{pinch:!0,round:!1},void 0);this._animRequest=x(n,this,!0),O(t)}},_onTouchEnd:function(){this._moved&&this._zooming?(this._zooming=!1,r(this._animRequest),k(document,"touchmove",this._onTouchMove,this),k(document,"touchend touchcancel",this._onTouchEnd,this),this._map.options.zoomAnimation?this._map._animateZoom(this._center,this._map._limitZoom(this._zoom),!0,this._map.options.zoomSnap):this._map._resetView(this._center,this._map._limitZoom(this._zoom))):this._zooming=!1}})),Xi=(A.addInitHook("addHandler","touchZoom",Ot),A.BoxZoom=_t,A.DoubleClickZoom=Ct,A.Drag=Zt,A.Keyboard=St,A.ScrollWheelZoom=Et,A.TapHold=kt,A.TouchZoom=Ot,t.Bounds=f,t.Browser=b,t.CRS=ot,t.Canvas=Fi,t.Circle=vi,t.CircleMarker=gi,t.Class=et,t.Control=B,t.DivIcon=Ri,t.DivOverlay=Ai,t.DomEvent=mt,t.DomUtil=pt,t.Draggable=Xe,t.Evented=it,t.FeatureGroup=ci,t.GeoJSON=wi,t.GridLayer=Ni,t.Handler=n,t.Icon=di,t.ImageOverlay=Ei,t.LatLng=v,t.LatLngBounds=s,t.Layer=o,t.LayerGroup=ui,t.LineUtil=vt,t.Map=A,t.Marker=mi,t.Mixin=ft,t.Path=fi,t.Point=p,t.PolyUtil=gt,t.Polygon=xi,t.Polyline=yi,t.Popup=Bi,t.PosAnimation=Fe,t.Projection=wt,t.Rectangle=Yi,t.Renderer=Wi,t.SVG=Gi,t.SVGOverlay=Oi,t.TileLayer=Di,t.Tooltip=Ii,t.Transformation=at,t.Util=tt,t.VideoOverlay=ki,t.bind=a,t.bounds=_,t.canvas=Ui,t.circle=function(t,e,i){return new vi(t,e,i)},t.circleMarker=function(t,e){return new gi(t,e)},t.control=Ue,t.divIcon=function(t){return new Ri(t)},t.extend=l,t.featureGroup=function(t,e){return new ci(t,e)},t.geoJSON=Si,t.geoJson=Mt,t.gridLayer=function(t){return new Ni(t)},t.icon=function(t){return new di(t)},t.imageOverlay=function(t,e,i){return new Ei(t,e,i)},t.latLng=w,t.latLngBounds=g,t.layerGroup=function(t,e){return new ui(t,e)},t.map=function(t,e){return new A(t,e)},t.marker=function(t,e){return new mi(t,e)},t.point=m,t.polygon=function(t,e){return new xi(t,e)},t.polyline=function(t,e){return new yi(t,e)},t.popup=function(t,e){return new Bi(t,e)},t.rectangle=function(t,e){return new Yi(t,e)},t.setOptions=c,t.stamp=h,t.svg=Ki,t.svgOverlay=function(t,e,i){return new Oi(t,e,i)},t.tileLayer=ji,t.tooltip=function(t,e){return new Ii(t,e)},t.transformation=ht,t.version="1.9.4",t.videoOverlay=function(t,e,i){return new ki(t,e,i)},window.L);t.noConflict=function(){return window.L=Xi,this},window.L=t});
+//# sourceMappingURL=leaflet.js.map
\ No newline at end of file

From 13f4d3d94479606ba715ab6cf6431837b2f907cb Mon Sep 17 00:00:00 2001
From: Aleksandr Kovalko <gistrec@gmail.com>
Date: Wed, 7 Oct 2026 07:12:26 +0200
Subject: [PATCH 3/3] docs: link the live WebAssembly demo from the README

---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index c9b3d99..84555fb 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,8 @@
 
 _Stop hand-rolling haversine, polyline, and polygon math yourself._
 
+**[▶ Live demo](https://gistrec.github.io/geo-utils-cpp/)** — the library compiled to WebAssembly, running in your browser.
+
 <!-- Row 1 — identity + trust -->
 <p align="center">
   <img src="https://img.shields.io/badge/C%2B%2B-17-00599C?logo=cplusplus&logoColor=white" alt="C++17">