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250 changes: 250 additions & 0 deletions editor/index.html
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<!DOCTYPE html>
<html lang="en">
<!--
Web application editor for ELI sources

1. Drag your sources .geojson within this page in the browser. The sources .geojson file may either include or exclude the geometry
2. Fix or create a new polygon or polygons
3. Once done take the last object logged to the developer tools console and copy it into your source .geojson
-->

<head>
<title>ELI Editor</title>
<meta property="og:description" content="editor-layer-index editor" />
<meta charset='utf-8'>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel='stylesheet' href='https://unpkg.com/[email protected]/dist/maplibre-gl.css' />
<script src='https://unpkg.com/[email protected]/dist/maplibre-gl.js'></script>
<style>
body {
margin: 0;
padding: 0;
}

html,
body,
#map {
height: 100%;
}
</style>
</head>

<body>
<style>
</style>
<script src="https://www.unpkg.com/@mapbox/[email protected]/dist/mapbox-gl-draw.js"></script>
<link rel="stylesheet" href="https://www.unpkg.com/@mapbox/[email protected]/dist/mapbox-gl-draw.css" />
<div id="map"></div>

<script type="module">

import * as turf from 'https://esm.sh/@turf/[email protected]';

MapboxDraw.constants.classes.CANVAS = 'maplibregl-canvas';
MapboxDraw.constants.classes.CONTROL_BASE = 'maplibregl-ctrl';
MapboxDraw.constants.classes.CONTROL_PREFIX = 'maplibregl-ctrl-';
MapboxDraw.constants.classes.CONTROL_GROUP = 'maplibregl-ctrl-group';
MapboxDraw.constants.classes.ATTRIBUTION = 'maplibregl-ctrl-attrib';

const blue = "#3bb2d0";
const orange = "#fbb03b";
const white = "#fff";

const theme = [
// Polygons
// Solid fill
// Active state defines color
{
id: "gl-draw-polygon-fill",
type: "fill",
filter: ["all", ["==", "$type", "Polygon"]],
paint: {
"fill-color": ["case", ["==", ["get", "active"], "true"], orange, blue],
"fill-opacity": 0.5,
},
},
// Lines
// Polygon
// Matches Lines AND Polygons
// Active state defines color
{
id: "gl-draw-lines",
type: "line",
filter: ["any", ["==", "$type", "LineString"], ["==", "$type", "Polygon"]],
layout: {
"line-cap": "round",
"line-join": "round",
},
paint: {
"line-color": ["case", ["==", ["get", "active"], "true"], orange, blue],
"line-dasharray": [0.2, 2],
"line-width": 4,
},
},
// Points
// Circle with an outline
// Active state defines size and color
{
id: "gl-draw-point-outer",
type: "circle",
filter: ["all", ["==", "$type", "Point"], ["==", "meta", "feature"]],
paint: {
"circle-radius": ["case", ["==", ["get", "active"], "true"], 14, 10],
"circle-color": white,
},
},
{
id: "gl-draw-point-inner",
type: "circle",
filter: ["all", ["==", "$type", "Point"], ["==", "meta", "feature"]],
paint: {
"circle-radius": ["case", ["==", ["get", "active"], "true"], 10, 6],
"circle-color": ["case", ["==", ["get", "active"], "true"], orange, blue],
},
},
// Vertex
// Visible when editing polygons and lines
// Similar behaviour to Points
// Active state defines size
{
id: "gl-draw-vertex-outer",
type: "circle",
filter: [
"all",
["==", "$type", "Point"],
["==", "meta", "vertex"],
["!=", "mode", "simple_select"],
],
paint: {
"circle-radius": ["case", ["==", ["get", "active"], "true"], 14, 10],
"circle-color": white,
},
},
{
id: "gl-draw-vertex-inner",
type: "circle",
filter: [
"all",
["==", "$type", "Point"],
["==", "meta", "vertex"],
["!=", "mode", "simple_select"],
],
paint: {
"circle-radius": ["case", ["==", ["get", "active"], "true"], 10, 6],
"circle-color": orange,
},
},
// Midpoint
// Visible when editing polygons and lines
// Tapping or dragging them adds a new vertex to the feature
{
id: "gl-draw-midpoint",
type: "circle",
filter: ["all", ["==", "meta", "midpoint"]],
paint: {
"circle-radius": 6,
"circle-color": orange,
},
},
];

let source;

const map = new maplibregl.Map({
container: 'map',
style: 'https://pnorman.github.io/tilekiln-shortbread-demo/colorful.json',
center: [0, 0],
zoom: 1
});
window.map = map;

const draw = new MapboxDraw({
displayControlsDefault: false,
controls: {
polygon: true,
trash: true
},
styles: theme
});
map.addControl(draw);

map.on('draw.create', update);
map.on('draw.delete', update);
map.on('draw.update', update);

function update(e) {
const data = draw.getAll();
const feature = data.features.length > 1 ? turf.union(data) : data.features[0];
source.geometry = feature.geometry;
console.log(source.geometry);
}

function handleDrop(e) {
e.stopPropagation();
e.preventDefault();
var files = e.dataTransfer.files;
for (const file of files) {

if (file.type == 'application/geo+json') {
var reader = new FileReader();
reader.addEventListener('load', (loadEvent) => {
source = JSON.parse(reader.result);
draw.deleteAll();
if (source.geometry) {
draw.add(source);
map.fitBounds(turf.bbox(source), { padding: 20 });
}

let url;
let scheme;
if (source.properties.type === 'wms') {
url = source.properties.url
.replace('{bbox}', '{bbox-epsg-3857}')
.replace('{width}', '256')
.replace('{height}', '256')
.replace('{proj}', '3857')
.replace('format=jpeg', 'format=png&transparent=true');
scheme = 'xyz'
} else if (source.properties.type === 'tms') {
url = source.properties.url
.replace('{zoom}', '{z}');
scheme = 'xyz';
}

if (map.getLayer('layer')) {
map.removeLayer('layer');
}
if (map.getSource('source')) {
map.removeSource('source');
}
map.addSource('source', {
'type': 'raster',
'tiles': [url],
'tileSize': 256,
'scheme': scheme
});
map.addLayer({
'id': 'layer',
'type': 'raster',
'source': 'source',
'paint': {}
}, 'symbol-transit-airport');
});
reader.readAsText(file);
}
}
}

function handleDragOver(e) {
e.stopPropagation();
e.preventDefault();
e.dataTransfer.dropEffect = 'copy';
}

var dropElement = document.getElementsByTagName('body')[0];
dropElement.addEventListener('dragover', handleDragOver, false);
dropElement.addEventListener('drop', handleDrop, false);
</script>
</body>

</html>
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