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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;
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
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 json_center_on_block(json) {
for (var i = 0; i < json.length; i++) {
if (json[i].geometry && json[i].geometry.coordinates) {
switch (json[i].geometry.type) {
case "Point":
json[i].geometry.coordinates[0] += 0.5;
json[i].geometry.coordinates[1] += 0.5;
break;
case "LineString":
for (var j = 0; j < json[i].geometry.coordinates.length; j++) {
json[i].geometry.coordinates[j][0] += 0.5;
json[i].geometry.coordinates[j][1] += 0.5;
}
break;
default:
console.log("centering: Type " + json[i].geometry.type + " not yet implemented.");
break;
}
}
}
return json;
}
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 © <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, 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('<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();
};
break;
}
var json = json_center_on_block(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);
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);
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