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xray.html
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<!DOCTYPE html>
<html>
<head>
<meta charset='utf-8' />
<title>MapBox GL JS Offline Example</title>
<meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' />
<!--
<script src='https://api.tiles.mapbox.com/mapbox-gl-js/v0.10.0/mapbox-gl.js'></script>
<link href='https://api.tiles.mapbox.com/mapbox-gl-js/v0.10.0/mapbox-gl.css' rel='stylesheet' />
-->
<script src='mapbox-gl.js'></script>
<link href='mapbox-gl.css' rel='stylesheet' />
<style>
body {background: #000;}
#map {position:absolute;top:0;left:0;right:200px;bottom:0;}
#layerList {position:absolute;top:5px;right:0;bottom:50%;width:190px;overflow:auto;}
#layerList div {color:#ccc;}
#layerList div div {width:15px;height:15px;display:inline-block;}
#propertyList {position:absolute;top:50%;bottom:0;right:0;width:190px;overflow:auto;color:#fff;}
</style>
</head>
<body>
<div id="map"></div>
<div id="layerList"></div>
<pre id="propertyList"></pre>
<script>
// mapboxgl.accessToken = 'pk.your-own-code-here-for-online-maps';
mapboxgl.accessToken = 'NOT-REQUIRED-WITH-YOUR-VECTOR-TILES-DATA';
var map = new mapboxgl.Map({
container: 'map',
center: [0, 0],
zoom: 1
});
map.addControl(new mapboxgl.Navigation());
var setCenterFromLayer = true;
var tileJsonUrl = 'http://osm2vectortiles.tileserver.com/v1.json';
function parseHash() {
var hash = window.location.hash.substr(1);
if (hash) {
hash = hash.replace(/%7C/g, '|');
parts = hash.split('|');
if (parts.length > 0 && parts[0].length > 0) {
tileJsonUrl = parts[0] || tileJsonUrl;
}
if (parts.length > 3) {
map.setCenter([parseFloat(parts[2]), parseFloat(parts[1])]);
map.setZoom(parseInt(parts[3]));
setCenterFromLayer = false;
}
}
}
parseHash();
map.on('moveend', function(e) {
var lonLat = map.getCenter();
window.location.hash = tileJsonUrl + '|' + lonLat.lat + '|' + lonLat.lng + '|' + map.getZoom();
});
function generateColor(str) {
var rgb = [0, 0, 0];
for (var i = 0; i < str.length; i++) {
var v = str.charCodeAt(i);
rgb[v % 3] = (rgb[i % 3] + (13*(v%13))) % 12;
}
var r = 4 + rgb[0];
var g = 4 + rgb[1];
var b = 4 + rgb[2];
r = (r * 16) + r;
g = (g * 16) + g;
b = (b * 16) + b;
return [r,g,b,1];
};
function initLayer(data) {
var layer;
var layerList = document.getElementById('layerList');
var layers_ = [];
data['vector_layers'].forEach(function(el) {
var color = generateColor(el['id']);
var colorText = 'rgba(' + color[0] + ',' + color[1] + ',' + color[2] + ',' + color[3] + ')';
layers_.push({
id: el['id'] + Math.random(),
source: 'vector_layer_',
'source-layer': el['id'],
interactive: true,
type: 'line',
paint: {'line-color': colorText}
});
var item = document.createElement('div');
item.innerHTML = '<div style="' +
'background:rgba(' + color[0] + ',' + color[1] + ',' + color[2] + ',1);' +
'"></div> ' + el['id'];
layerList.appendChild(item);
});
map.setStyle({
version: 8,
sources: {
'vector_layer_': {
type: 'vector',
tiles: data['tiles'],
minzoom: data['minzoom'],
maxzoom: data['maxzoom']
}
},
layers: layers_
});
if (setCenterFromLayer) {
var center = data['center'];
if (typeof center == 'string') {
center = center.split(',');
}
map.setCenter([parseFloat(center[0]), parseFloat(center[1])]);
map.setZoom(parseInt(center[2], 10));
}
return layer;
}
function loadJson(callback) {
//var script = document.createElement('script');
//script.src = tileJsonUrl + '?callback=initLayer'
//document.getElementsByTagName('head')[0].appendChild(script);
var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
if (xhttp.readyState == 4 && xhttp.status == 200) {
callback(xhttp.response, initLayer(xhttp.response));
}
};
xhttp.responseType = 'json';
xhttp.open("GET", tileJsonUrl, true);
xhttp.send();
}
loadJson(function(data, layer) {});
var propertyList = document.getElementById('propertyList');
map.on('mousemove', function(e) {
propertyList.innerHTML = '';
map.featuresAt(e.point, {radius: 3}, function(err, features) {
if (err) throw err;
if (features[0]) {
propertyList.innerHTML = JSON.stringify(features[0].properties, null, 2);
}
});
});
</script>
</body>
</html>