var editor_mode = 0; var mymap; var streetLabelsRenderer = new L.StreetLabels({ collisionFlg: true, propertyName: 'name', showLabelIf: function (layer) { return layer.geometry.type == "LineString"; }, fontStyle: { dynamicFontSize: false, fontSize: 10, fontSizeUnit: "px", lineWidth: 4.0, fillStyle: "black", strokeStyle: "white", }, }); // 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 + 8 + 0.5; var originy = 7000 + 8 - 0.5; 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 mymap = L.map('mapid', { renderer: streetLabelsRenderer, editable: true, 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: 14 /*8*/, maxNativeZoom: 6, minNativeZoom: 0, minZoom: 0, noWrap: true, attribution: 'Map data © Linux-Forks, ' + '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, style={}) { var xhttp_ps = new XMLHttpRequest(); xhttp_ps.onreadystatechange = function() { if (this.readyState == 4) { if (this.status == 200) { switch (iconname) { case "street": onEachFeature = null; pointToLayer = null; break; default: /* else it is a marker with the specified icon */ onEachFeature = function(feature, layer) { label = String(feature.properties.name) layer.bindPopup('

' + feature.properties.name + ' (' + feature.geometry.coordinates + ')

' + '

' + '

' + feature.properties.description + '

'); layer.bindTooltip(label, { permanent: true, direction: "center", className: "city-names" }).openTooltip().on('click', jump_to_marker); }; 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(); }; break; } var json = JSON.parse(xhttp_ps.responseText); var geojson = L.geoJSON(json, { style: style, onEachFeature: onEachFeature, pointToLayer: pointToLayer }); layers.addOverlay(geojson, name); if (active) geojson.addTo(mymap); return geojson; } else { console.log("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("Shops", "./geojson/shops.json", "shopping-cart", "green"); load_geojson("Parks", "./geojson/parks.json", "tree", "darkgreen"); load_geojson("Libraries", "./geojson/libraries.json", "book-open", "darkblue"); load_geojson("CW Complexes", "./geojson/cw_complexes.json", "border-all", "black"); load_geojson("Courts", "./geojson/courts.json", "balance-scale", "black"); load_geojson("Waterway", "./geojson/waterway.json", "water", "darkblue"); load_geojson("Train Depots", "./geojson/depots.json", "wrench", "violet"); load_geojson("Streets", "./geojson/streets.json", "street", "blue", 0); L.control.scale().addTo(mymap); function get_current_location_str() { var latlng = mymap.getCenter(); return Math.round(latlng.lat) + "," + Math.round(latlng.lng) + "," + mymap.getZoom(); } /* Important: Do not use mymap.setView, use this function instead */ function jump_to(latlng, zoom = -1) { if (zoom == -1) zoom = mymap.getZoom(); if (!editor_mode) document.location.hash = "#" + Math.round(latlng.lat) + "," + Math.round(latlng.lng) + "," + zoom; else mymap.setView(latlng, zoom); } function jump_to_marker(e) { jump_to(e.target.getLatLng()); } function prompt_location() { var str = prompt("Enter coordinates to jump to:\n\n" + "Format: x, y [, zoom]", get_current_location_str()); if (str) { if (!editor_mode) document.location.hash = "#" + str; else onHashChange(null, "#" + str); } } var search_element; function toggle_search() { if (el = document.getElementById('searchbar')) { el.parentNode.removeChild(el); return; } if (!search_element) { search_element = document.createElement("div"); search_element.style.overflow = "scroll"; search_element.style.padding = "6px"; search_element.style.height = "100%"; search_element.innerHTML = '
' ; } td = document.getElementById('windowtr').insertCell(0); td.style.width = "400px"; td.style.borderRight = "1px solid black"; td.style.verticalAlign = "top"; td.id = "searchbar"; td.appendChild(search_element); document.getElementById('search_query').focus(); } function htmlEntities(str) { return String(str).replace(/&/g, '&').replace(//g, '>').replace(/"/g, '"'); } var regex; function search(e) { var query = htmlEntities(document.getElementById("search_query").value); if (query.length > 0 || e.key == "Enter") { results = document.createElement("ul"); for (var i = 0; i < layers._layers.length; i++) { if (!layers._layers[i].layer._layers) continue; for (key in layers._layers[i].layer._layers) { item = layers._layers[i].layer._layers[key]; switch (item.feature.geometry.type) { case "Point": regex = new RegExp(query, 'i'); if (item.feature.properties.name.match(regex)) { el = document.createElement("li"); el.innerHTML = "[" + layers._layers[i].name + "] " + '' + item.feature.properties.name + ""; results.appendChild(el); } break; default: break; } } } document.getElementById('search_results').innerHTML = "Search results for " + query; document.getElementById('search_results').appendChild(results); return false; } } L.MyControl = L.Control.extend({ options: { position: 'topleft', callback: null, kind: '', html: '' }, onAdd: function (map) { var container = L.DomUtil.create('div', 'leaflet-control leaflet-bar'), link = L.DomUtil.create('a', '', container); link.href = '#'; link.title = this.options.title; link.innerHTML = this.options.html; L.DomEvent.on(link, 'click', L.DomEvent.stop) .on(link, 'click', function () { window.LAYER = this.options.callback.call(); }, this); return container; } }); L.SearchControl = L.MyControl.extend({ options: { position: 'topleft', callback: toggle_search, title: 'Search', html: '🔍' } }); L.GotoControl = L.MyControl.extend({ options: { position: 'topleft', callback: prompt_location, title: 'Jump to coordinates.', html: '⌖' } }); mymap.addControl(new L.SearchControl()); mymap.addControl(new L.GotoControl()); 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); var is_user_drag = 0; function update_hash_from_position(e) { if (is_user_drag) is_user_drag = 0; else return; if (!editor_mode) document.location.hash = "#" + get_current_location_str(); } function dragstart(e) { is_user_drag = 1; } mymap.on('zoomend', function () {is_user_drag = 1; update_hash_from_position();}); 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;}); 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);