547 lines
15 KiB
JavaScript
547 lines
15 KiB
JavaScript
var editor_mode = 0;
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var mymap;
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var polyconf_show_street_names = 5; // Zoom level for when to start showing street names
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var polyconf_show_cities = 5; /* City outlines will be filled on this level and further away */
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var polyconf_show_districts = 4; /* Shown from polyconf_show_cities until this*/
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var streetLabelsRenderer = new L.StreetLabels({
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collisionFlg: true,
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propertyName: 'name',
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showLabelIf: function (layer) {
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switch (layer.geometry.type) {
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case "LineString":
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if (mymap.getZoom() <= polyconf_show_street_names)
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return false;
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break;
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case "Polygon":
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if (mymap.getZoom() > polyconf_show_street_names)
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return false;
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break;
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default:
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return false;
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}
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return true;
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},
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fontStyle: {
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dynamicFontSize: true,
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fontSize: 10,
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fontSizeUnit: "px",
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lineWidth: 3.0,
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fillStyle: "black",
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strokeStyle: "white",
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},
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});
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streetLabelsRenderer._getDynamicFontSize = function (layer) {
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zoom = mymap.getZoom();
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switch (layer.geometry.type) {
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case "LineString":
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if (zoom <= 8)
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return 11;
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else
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return 2**(zoom - 9) * 11;
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break;
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case "Polygon":
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var size;
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if (zoom >= 4)
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size = 30;
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else
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size = 20;
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switch (layer.properties.type) {
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case "city":
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break;
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case "town":
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size *= 2/3;
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break;
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case "village":
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size *= 1/3;
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break;
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case "district":
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size *= 2/3;
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break;
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default:
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size *= 0.5/3;
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break;
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}
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return size;
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default:
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break;
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}
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return 10;
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}
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var style_outlines = {
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radius: 8,
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fillColor: "#ff7800",
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color: "black",
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opacity: 1.0,
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fillOpacity: 0.5
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};
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var style_streets = {
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};
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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 + 8 + 0.5;
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var originy = 7000 + 8 - 0.5;
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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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mymap = L.map('mapid', {
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renderer: streetLabelsRenderer,
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editable: true,
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crs: L.CRS.pr
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}).setView([0, 0], 5);
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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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var layers = L.control.layers({}, {}).addTo(mymap);
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function load_svg(name, url, active=1) {
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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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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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} else {
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alert("Error: Could not load SVG map layer (" + name + ")");
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}
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}
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}
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;
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xhttp_ps.open("GET", url, true);
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xhttp_ps.send();
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}
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function load_tiles(name, id) {
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var satellite = L.tileLayer('https://notsyncing.net/maps.linux-forks.de/tiles/{id}/{z}/{y}/{x}.png', {
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maxZoom: 14 /*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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id: id,
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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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layers.addBaseLayer(satellite, name);
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return satellite;
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}
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var current_location = "";
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var current_feature = null;
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function load_geojson(name, url, iconname, iconcolor, active=1, style={}) {
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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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onEachFeature = null;
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pointToLayer = null;
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filter = null;
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switch (iconname) {
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case "street":
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onEachFeature = function(feature, layer) {
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layer.myTag = iconname;
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layer.myName = name;
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layer.on("click", function (e) {
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current_feature = feature;
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});
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};
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break;
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case "outline":
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onEachFeature = function(feature, layer) {
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layer.myTag = iconname;
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layer.myName = name;
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layer.on("click", function (e) {
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current_location = feature.properties.name;
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});
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}
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break;
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default: /* else it is a marker with the specified icon */
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onEachFeature = function(feature, layer) {
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label = String(feature.properties.name)
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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>');
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layer.bindTooltip(label, {
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permanent: true,
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direction: "center",
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className: "city-names"
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}).openTooltip().on('click', jump_to_marker);
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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.marker(latlng,{
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icon: L.AwesomeMarkers.icon({
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icon: iconname,
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markerColor: iconcolor
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})
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}).bindTooltip(label, {
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permanent: false,
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direction: "center",
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opacity: 0.7
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}).openTooltip();
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};
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break;
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}
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var json = JSON.parse(xhttp_ps.responseText);
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geojson = L.geoJSON(json, {
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style: style,
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onEachFeature: onEachFeature,
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pointToLayer: pointToLayer,
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filter: filter
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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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} else {
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console.log("Error: Could not load geojson map layer (" + name + ").");
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}
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}
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}
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;
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xhttp_ps.open("GET", url, true);
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xhttp_ps.send();
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}
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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", "city", "red");
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load_geojson("Stations", "./geojson/stations.json", "train", "blue");
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load_geojson("Shops", "./geojson/shops.json", "shopping-cart", "green");
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load_geojson("Parks", "./geojson/parks.json", "tree", "darkgreen");
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load_geojson("Libraries", "./geojson/libraries.json", "book-open", "darkblue");
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load_geojson("CW Complexes", "./geojson/cw_complexes.json", "border-all", "black");
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load_geojson("Courts", "./geojson/courts.json", "balance-scale", "black");
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load_geojson("Waterway", "./geojson/waterway.json", "water", "darkblue");
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load_geojson("Train Depots", "./geojson/depots.json", "wrench", "violet");
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load_geojson("Streets", "./geojson/streets.json", "street", "blue", 0);
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L.control.scale().addTo(mymap);
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function resolve_latlng(latlng, recenter = 0) {
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latlng.lng = Math.round(latlng.lng);
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latlng.lat = Math.round(latlng.lat);
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return latlng;
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}
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function get_current_location_str() {
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var latlng = resolve_latlng(mymap.getCenter());
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return latlng.lng + "," + latlng.lat + "," + mymap.getZoom();
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}
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/* Important: Do not use mymap.setView, use this function instead */
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function jump_to(latlng, zoom = -1) {
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if (zoom == -1)
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zoom = mymap.getZoom();
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if (!editor_mode) {
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pos = resolve_latlng(latlng);
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document.location.hash = "#" + pos.lng + "," + pos.lat + "," + zoom;
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} else {
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mymap.setView(latlng, zoom);
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}
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}
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function jump_to_marker(e) {
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jump_to(e.target.getLatLng());
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}
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function prompt_location() {
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var str = prompt("Enter coordinates to jump to:\n\n" +
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"Format: x, y [, zoom]", get_current_location_str());
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if (str) {
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if (!editor_mode)
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document.location.hash = "#" + str;
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else
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onHashChange(null, "#" + str);
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}
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}
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var search_element;
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function toggle_search() {
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if (el = document.getElementById('searchbar')) {
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el.parentNode.removeChild(el);
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return;
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}
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if (!search_element) {
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search_element = document.createElement("div");
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search_element.style.overflow = "scroll";
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search_element.style.padding = "6px";
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search_element.style.height = "100%";
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search_element.innerHTML = '<input style="width:100%;" id="search_query" name="lifo_map_search" type="search" placeholder="Start typing to search..." oninput="search(event)"><div id="search_results"></div>' ;
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}
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td = document.getElementById('windowtr').insertCell(0);
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td.style.width = "400px";
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td.style.borderRight = "1px solid black";
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td.style.verticalAlign = "top";
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td.id = "searchbar";
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td.appendChild(search_element);
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document.getElementById('search_query').select();
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}
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function htmlEntities(str) {
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return String(str).replace(/&/g, '&').replace(/</g, '<').replace(/>/g, '>').replace(/"/g, '"');
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}
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function polyline_get_middle_coords(coords) {
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var ret = [2];
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ret[0] = coords[0][0] + (coords[coords.length - 1][0] - coords[0][0]) / 2;
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ret[1] = coords[0][1] + (coords[coords.length - 1][1] - coords[0][1]) / 2;
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return ret;
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}
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var highlighted_line;
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var default_street_color = "#3388ff";
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function search(e) {
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var query = document.getElementById("search_query").value;
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document.getElementById('search_results').innerHTML = "";
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if (true) {
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if (query.length == 0)
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query = "!@#$%^&"; // Cheap workaround to (hopefully) match nothing
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results = document.createElement("ul");
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for (var i = 0; i < layers._layers.length; i++) {
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if (!layers._layers[i].layer._layers)
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continue;
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for (key in layers._layers[i].layer._layers) {
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item = layers._layers[i].layer._layers[key];
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switch (item.feature.geometry.type) {
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case "Point":
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regex = new RegExp(query, 'i');
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if (item.feature.properties.name.match(regex)) {
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el = document.createElement("li");
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el.innerHTML = "[" + layers._layers[i].name + "] " + '<a href="#" onclick="layers._layers[' + i + '].layer._layers[' + item._leaflet_id + '].fire(\'click\'); return false;">' + htmlEntities(item.feature.properties.name) + "</a>";
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results.appendChild(el);
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}
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break;
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case "LineString":
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if (item.options.color != default_street_color) { // De-hilight last search
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item.options.color = default_street_color;
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item.redraw();
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}
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regex = new RegExp(query, 'i');
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if (item.feature.properties.name.match(regex)) {
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item.options.color = "#FF0000";
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item.redraw();
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el = document.createElement("li");
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zpos = polyline_get_middle_coords(item.feature.geometry.coordinates);
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el.innerHTML = "[" + layers._layers[i].name + "] " + '<a href="#" onclick="latLng2 = L.latLng(' + zpos[1] + ',' + zpos[0] + '); jump_to(latLng2); return false;">' + htmlEntities(item.feature.properties.name) + "</a>";
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results.appendChild(el);
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}
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break;
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case "Polygon":
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regex = new RegExp(query, 'i');
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if (item.feature.properties.name.match(regex)) {
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el = document.createElement("li");
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zpos = resolve_latlng(layers._layers[i].layer._layers[item._leaflet_id].getCenter());
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el.innerHTML = "[" + layers._layers[i].name + "] " + '<a href="#" onclick="latLng2 = L.latLng(' + zpos.lat + ',' + zpos.lng + '); jump_to(latLng2, ' + polyconf_show_cities + '); return false;">' + htmlEntities(item.feature.properties.name) + "</a>";
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results.appendChild(el);
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}
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break;
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default:
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break;
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}
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}
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}
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document.getElementById('search_results').appendChild(results);
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}
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return false;
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}
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L.MyControl = L.Control.extend({
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options: {
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position: 'topleft',
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callback: null,
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kind: '',
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html: ''
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},
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onAdd: function (map) {
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var container = L.DomUtil.create('div', 'leaflet-control leaflet-bar'),
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link = L.DomUtil.create('a', '', container);
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link.href = '#';
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link.title = this.options.title;
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link.innerHTML = this.options.html;
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L.DomEvent.on(link, 'click', L.DomEvent.stop)
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.on(link, 'click', function () {
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window.LAYER = this.options.callback.call();
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}, this);
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return container;
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}
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});
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L.SearchControl = L.MyControl.extend({
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options: {
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position: 'topleft',
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callback: toggle_search,
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title: 'Search',
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html: '🔍'
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}
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});
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L.GotoControl = L.MyControl.extend({
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options: {
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position: 'topleft',
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callback: prompt_location,
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title: 'Jump to coordinates',
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html: '⌖'
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}
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});
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mymap.addControl(new L.SearchControl());
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mymap.addControl(new L.GotoControl());
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var popup = L.popup();
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L.AwesomeMarkers.Icon.prototype.options.prefix = 'fa';
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var baseballIcon = L.AwesomeMarkers.icon({
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icon: 'coffee',
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markerColor: 'red'
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});
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function onMapClick(e) {
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var addinfo = "";
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if (current_location != "")
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addinfo = " (part of " + current_location + ")";
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if (current_feature) {
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popup.setLatLng(e.latlng).setContent("This is " + current_feature.properties.name + addinfo).openOn(mymap);
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} else {
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pos = resolve_latlng(e.latlng);
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popup.setLatLng(e.latlng).setContent("You clicked the map at " + pos.lng + "," + pos.lat + addinfo).openOn(mymap);
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}
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current_feature = null;
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current_location = "";
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}
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mymap.on('click', onMapClick);
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var is_user_drag = 0;
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function update_hash_from_position(e) {
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if (is_user_drag)
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is_user_drag = 0;
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else
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return;
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if (!editor_mode)
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document.location.hash = "#" + get_current_location_str();
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}
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function dragstart(e) {
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is_user_drag = 1;
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}
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function update_aa_status() {
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if (mymap.getZoom() > zoom_level_real)
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document.getElementById('mapid').classList.add("no-aa");
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else
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document.getElementById('mapid').classList.remove("no-aa");
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}
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function update_street_width() {
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zoom = mymap.getZoom();
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var w;
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if (zoom <= 6) {
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w = 2;
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} else {
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w = 2**zoom * 0.016 * 2;
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}
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var myStyle = {weight: w, opacity: 0.7};
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mymap.eachLayer( function(layer) {
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if ( layer.myTag && layer.myTag === "street") {
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layer.setStyle(myStyle);
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|
}
|
|
});
|
|
}
|
|
|
|
function update_outline_visibility() {
|
|
zoom = mymap.getZoom();
|
|
mymap.eachLayer( function(layer) {
|
|
if ( layer.myTag && layer.myTag === "outline") {
|
|
var fillOpacity;
|
|
if (zoom <= polyconf_show_cities)
|
|
fillOpacity = 0.5;
|
|
//else if (zoom == polyconf_show_cities + 1)
|
|
// opacity = 0.2;
|
|
else
|
|
fillOpacity = 0.0;
|
|
|
|
layer.setStyle({fillOpacity: fillOpacity});
|
|
}
|
|
});
|
|
}
|
|
|
|
mymap.on('zoomend', function () {is_user_drag = 1; update_hash_from_position();});
|
|
mymap.on('zoomend', update_aa_status);
|
|
mymap.on('zoomend', update_street_width);
|
|
mymap.on('zoomend', update_outline_visibility);
|
|
mymap.on('moveend', update_hash_from_position);
|
|
mymap.on('dragstart', function () { is_user_drag = 1;});
|
|
mymap.on('keydown', function (e) { if (e.originalEvent.code.match(/Arrow.*/)) is_user_drag = 1;});
|
|
mymap.on('overlayadd', function (e) { update_street_width(); update_outline_visibility(); });
|
|
function onHashChange(e, hash=null) {
|
|
if (!hash)
|
|
hash = document.location.hash;
|
|
if (hash == "#" + get_current_location_str())
|
|
return; // We're already there
|
|
coordstr = hash.slice(1).replace(/%20/g, "").split(",");
|
|
if (coordstr.length < 2)
|
|
coordstr.push(0); // Default y
|
|
if (coordstr.length < 3)
|
|
coordstr.push(mymap.getZoom()); // Default zoom
|
|
var latlng = L.latLng(parseFloat(coordstr[1]), parseFloat(coordstr[0]));
|
|
mymap.setView(latlng, parseInt(coordstr[2]));
|
|
}
|
|
|
|
window.addEventListener("hashchange", onHashChange, false);
|
|
onHashChange(null);
|