2020-04-14 18:10:19 +02:00
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<!DOCTYPE html>
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<html>
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<head>
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<title>LinuxWorks Minetest Map (unofficial)</title>
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<meta charset="utf-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<link rel="stylesheet" href="https://unpkg.com/leaflet@1.6.0/dist/leaflet.css" integrity="sha512-xwE/Az9zrjBIphAcBb3F6JVqxf46+CDLwfLMHloNu6KEQCAWi6HcDUbeOfBIptF7tcCzusKFjFw2yuvEpDL9wQ==" crossorigin=""/>
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<script src="https://unpkg.com/leaflet@1.6.0/dist/leaflet.js" integrity="sha512-gZwIG9x3wUXg2hdXF6+rVkLF/0Vi9U8D2Ntg4Ga5I5BZpVkVxlJWbSQtXPSiUTtC0TjtGOmxa1AJPuV0CPthew==" crossorigin=""></script>
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</head>
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<body style="position: absolute; padding: 0px; margin: 0px; width:100%; height:100%;">
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<div id="mapid" style="width: 100%; height: 100%;"></div>
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<style>
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.leaflet-tooltip.city-names {
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background-color: transparent;
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border: transparent;
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box-shadow: none;
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font-weight: bold;
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font-size: 14pt;
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opacity:1.0;
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color: white;
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text-shadow: 0px 0px 5px black;
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}
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</style>
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<script>
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// Projection fix from: https://gis.stackexchange.com/questions/200865/leaflet-crs-simple-custom-scale
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var factorx = 1/256 * 4;
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var factory = factorx;
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var originx = 7000;
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var originy = 7000;
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var zoom_level_real = 6;
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L.CRS.pr = L.extend({}, L.CRS.Simple, {
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projection: L.Projection.LonLat,
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transformation: new L.Transformation(factorx, factorx * originx, -factory, factory * originy),
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scale: function(zoom) {
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return Math.pow(2, zoom);
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},
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zoom: function(scale) {
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return Math.log(scale) / Math.LN2;
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},
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distance: function(latlng1, latlng2) {
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var dx = latlng2.lng - latlng1.lng,
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dy = latlng2.lat - latlng1.lat;
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return Math.sqrt(dx * dx + dy * dy);
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},
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infinite: true
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});
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// Init map
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var mymap = L.map('mapid', {
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crs: L.CRS.pr
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}).setView([0, 0], 6);
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var mapheight = 16384;
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var mapwidth = mapheight;
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var sw = mymap.unproject([0, 0], zoom_level_real);
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var ne = mymap.unproject([mapwidth, mapheight], zoom_level_real);
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var layerbounds = new L.LatLngBounds(sw, ne);
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2020-04-14 21:27:22 +02:00
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var layers = L.control.layers({}, {}).addTo(mymap);
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function load_svg(name, url, active=1) {
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2020-04-14 18:10:19 +02:00
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var xhttp_ps = new XMLHttpRequest();
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xhttp_ps.onreadystatechange = function() {
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if (this.readyState == 4) {
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if (this.status == 200) {
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var svgElement = document.createElementNS("http://www.w3.org/2000/svg", "svg");
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svgElement.setAttribute('xmlns', "http://www.w3.org/2000/svg");
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svgElement.setAttribute('viewBox', "0 0 16384 16384");
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svgElement.innerHTML = xhttp_ps.responseText;
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2020-04-14 21:27:22 +02:00
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var svgElementBounds = [ [ 0, 0 ], [ 1000, 1000 ] ];
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var overlay = L.svgOverlay(svgElement, svgElementBounds);
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layers.addOverlay(overlay, name);
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if (active)
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overlay.addTo(mymap);
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return overlay;
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2020-04-14 18:10:19 +02:00
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} else {
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2020-04-14 21:27:22 +02:00
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alert("Error: Could not load SVG map layer (" + name + ")");
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2020-04-14 18:10:19 +02:00
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}
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}
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};
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2020-04-14 21:27:22 +02:00
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xhttp_ps.open("GET", url, true);
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2020-04-14 18:10:19 +02:00
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xhttp_ps.send();
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}
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2020-04-14 21:27:22 +02:00
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function load_tiles(name, id) {
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2020-04-14 18:10:19 +02:00
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var satellite = L.tileLayer('tiles/?id={id}&z={z}&x={x}&y={y}', {
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maxZoom: 8,
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maxNativeZoom: 6,
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minNativeZoom: 0,
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minZoom: 0,
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noWrap: true,
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attribution: 'Map data © <a href="https://wiki.linux-forks.de/mediawiki/index.php/Maps">Linux-Forks</a>, ' +
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'All rights reserved, ',
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2020-04-14 21:27:22 +02:00
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id: id,
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2020-04-14 18:10:19 +02:00
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tileSize: 256,
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zoomOffset: 0,
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opacity: 1.0,
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bounds: layerbounds
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});
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2020-04-14 21:27:22 +02:00
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layers.addBaseLayer(satellite, name);
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return satellite;
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2020-04-14 18:10:19 +02:00
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}
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2020-04-14 21:27:22 +02:00
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function load_geojson(name, url, active=1) {
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2020-04-14 18:10:19 +02:00
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var xhttp_ps = new XMLHttpRequest();
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xhttp_ps.onreadystatechange = function() {
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if (this.readyState == 4) {
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if (this.status == 200) {
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var geojson = L.geoJSON(JSON.parse(xhttp_ps.responseText), {
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onEachFeature: function (feature, layer) {
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label = String(feature.properties.name)
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layer.bindPopup(
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'<h1><a href="https://wiki.linux-forks.de/mediawiki/index.php/'+feature.properties.name+'">'+feature.properties.name+'</a> ('+feature.geometry.coordinates+')</h1>'+
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'<p><img style="width:100%" src="' + feature.properties.image + '"></p>' +
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'<p>'+feature.properties.description+'</p>'
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);
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layer.bindTooltip(label, {permanent: true, direction: "center", className: "city-names"}).openTooltip();
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}/*,
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pointToLayer: function(feature,latlng){
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label = String(feature.properties.name)
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return new L.CircleMarker(latlng, {
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radius: 1,
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}).bindTooltip(label, {permanent: true, direction: "center", opacity: 0.7}).openTooltip();
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}*/
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2020-04-14 21:27:22 +02:00
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});
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layers.addOverlay(geojson, name);
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if (active)
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geojson.addTo(mymap);
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return geojson;
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2020-04-14 18:10:19 +02:00
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} else {
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2020-04-14 21:27:22 +02:00
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alert("Error: Could not load geojson map layer (" + name + ").");
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2020-04-14 18:10:19 +02:00
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}
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}
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};
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2020-04-14 21:27:22 +02:00
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xhttp_ps.open("GET", url, true);
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2020-04-14 18:10:19 +02:00
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xhttp_ps.send();
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}
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2020-04-14 21:27:22 +02:00
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load_tiles("Satellite (2020-04-09)", 'world-2020-04-09').addTo(mymap);
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load_tiles("Satellite (2019-05-04, wrong coords)", 'world-2019-05-04');
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//load_svg("Test", "./overlay.svg", 0);
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load_geojson("Cities", "./geojson/cities.json");
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2020-04-14 18:10:19 +02:00
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L.control.scale().addTo(mymap);
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var popup = L.popup();
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function onMapClick(e) {
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popup
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.setLatLng(e.latlng)
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.setContent("You clicked the map at " + e.latlng.toString())
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.openOn(mymap);
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}
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mymap.on('click', onMapClick);
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</script>
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</body>
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</html>
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