lifomapserver/htdocs/mapscript.js

149 lines
4.4 KiB
JavaScript

// 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 &copy; <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);