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Diffstat (limited to 'htdocs/mapscript.js')
| -rw-r--r-- | htdocs/mapscript.js | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/htdocs/mapscript.js b/htdocs/mapscript.js new file mode 100644 index 0000000..8292140 --- /dev/null +++ b/htdocs/mapscript.js @@ -0,0 +1,148 @@ +// Projection fix from: https://gis.stackexchange.com/questions/200865/leaflet-crs-simple-custom-scale +var factorx = 1/256 * 4; +var factory = factorx; +var originx = 7000; +var originy = 7000; +var zoom_level_real = 6; + +L.CRS.pr = L.extend({}, L.CRS.Simple, { + projection: L.Projection.LonLat, + transformation: new L.Transformation(factorx, factorx * originx, -factory, factory * originy), + + scale: function(zoom) { + return Math.pow(2, zoom); + }, + + zoom: function(scale) { + return Math.log(scale) / Math.LN2; + }, + + distance: function(latlng1, latlng2) { + var dx = latlng2.lng - latlng1.lng, + dy = latlng2.lat - latlng1.lat; + + return Math.sqrt(dx * dx + dy * dy); + }, + infinite: true +}); + +// Init map +var mymap = L.map('mapid', { + crs: L.CRS.pr +}).setView([0, 0], 6); + +var mapheight = 16384; +var mapwidth = mapheight; +var sw = mymap.unproject([0, 0], zoom_level_real); +var ne = mymap.unproject([mapwidth, mapheight], zoom_level_real); +var layerbounds = new L.LatLngBounds(sw, ne); + +var layers = L.control.layers({}, {}).addTo(mymap); + +function load_svg(name, url, active=1) { + var xhttp_ps = new XMLHttpRequest(); + xhttp_ps.onreadystatechange = function() { + if (this.readyState == 4) { + if (this.status == 200) { + var svgElement = document.createElementNS("http://www.w3.org/2000/svg", "svg"); + svgElement.setAttribute('xmlns', "http://www.w3.org/2000/svg"); + svgElement.setAttribute('viewBox', "0 0 16384 16384"); + svgElement.innerHTML = xhttp_ps.responseText; + var svgElementBounds = [ [ 0, 0 ], [ 1000, 1000 ] ]; + var overlay = L.svgOverlay(svgElement, svgElementBounds); + layers.addOverlay(overlay, name); + if (active) + overlay.addTo(mymap); + return overlay; + } else { + alert("Error: Could not load SVG map layer (" + name + ")"); + } + } + }; + xhttp_ps.open("GET", url, true); + xhttp_ps.send(); +} + +function load_tiles(name, id) { + var satellite = L.tileLayer('https://notsyncing.net/maps.linux-forks.de/tiles/?id={id}&z={z}&x={x}&y={y}', { + maxZoom: 8, + maxNativeZoom: 6, + minNativeZoom: 0, + minZoom: 0, + noWrap: true, + attribution: 'Map data © <a href="https://wiki.linux-forks.de/mediawiki/index.php/Maps">Linux-Forks</a>, ' + + 'All rights reserved, ', + id: id, + tileSize: 256, + zoomOffset: 0, + opacity: 1.0, + bounds: layerbounds + }); + layers.addBaseLayer(satellite, name); + return satellite; +} + + + +function load_geojson(name, url, iconname, iconcolor,active=1) { + var xhttp_ps = new XMLHttpRequest(); + xhttp_ps.onreadystatechange = function() { + if (this.readyState == 4) { + if (this.status == 200) { + var geojson = L.geoJSON(JSON.parse(xhttp_ps.responseText), { + onEachFeature: function (feature, layer) { + label = String(feature.properties.name) + layer.bindPopup( + '<h1><a href="https://wiki.linux-forks.de/mediawiki/index.php/'+feature.properties.name+'">'+feature.properties.name+'</a> ('+feature.geometry.coordinates+')</h1>'+ + '<p><img style="width:100%" src="' + feature.properties.image + '"></p>' + + '<p>'+feature.properties.description+'</p>' + ); + layer.bindTooltip(label, {permanent: true, direction: "center", className: "city-names"}).openTooltip(); + }, + pointToLayer: function(feature,latlng){ + label = String(feature.properties.name) + return new L.marker(latlng, {icon: L.AwesomeMarkers.icon({ + icon: iconname, + markerColor: iconcolor + })}).bindTooltip(label, {permanent: false, direction: "center", opacity: 0.7}).openTooltip(); + } + }); + layers.addOverlay(geojson, name); + if (active) + geojson.addTo(mymap); + return geojson; + } else { + alert("Error: Could not load geojson map layer (" + name + ")."); + } + } + }; + xhttp_ps.open("GET", url, true); + xhttp_ps.send(); +} + +load_tiles("Satellite (2020-04-09)", 'world-2020-04-09').addTo(mymap); +load_tiles("Satellite (2019-05-04, wrong coords)", 'world-2019-05-04'); + +//load_svg("Test", "./overlay.svg", 0); +load_geojson("Cities", "./geojson/cities.json", "city", "red"); +load_geojson("Stations", "./geojson/stations.json", "train", "blue"); +load_geojson("Stations", "./geojson/shops.json", "shopping-cart", "green"); + +L.control.scale().addTo(mymap); + +var popup = L.popup(); + +L.AwesomeMarkers.Icon.prototype.options.prefix = 'fa'; +var baseballIcon = L.AwesomeMarkers.icon({ + icon: 'coffee', + markerColor: 'red' +}); + +function onMapClick(e) { + popup + .setLatLng(e.latlng) + .setContent("You clicked the map at " + e.latlng.toString()) + .openOn(mymap); +} + +mymap.on('click', onMapClick); |