dynmap/web/js/hdmap.js

50 lines
1.6 KiB
JavaScript

var HDProjection = DynmapProjection.extend({
fromLocationToLatLng: function(location) {
var wtp = this.options.worldtomap;
var xx = wtp[0]*location.x + wtp[1]*location.y + wtp[2]*location.z;
var yy = wtp[3]*location.x + wtp[4]*location.y + wtp[5]*location.z;
return new L.LatLng(
xx / (1 << this.options.mapzoomout)
, (128-yy) / (1 << this.options.mapzoomout)
, true);
},
fromLatLngToLocation: function(latlon, y) {
var ptw = this.options.maptoworld;
var lat = latlon.lat * (1 << this.options.mapzoomout);
var lon = 128 - latlon.lng * (1 << this.options.mapzoomout);
var x = ptw[0]*lat + ptw[1]*lon + ptw[2]*y;
var z = ptw[6]*lat + ptw[7]*lon + ptw[8]*y;
return { x: x, y: y, z: z };
}
});
var HDMapType = DynmapTileLayer.extend({
projection: undefined,
options: {
minZoom: 0,
maxZoom: 0,
errorTileUrl: 'images/blank.png'
},
initialize: function(options) {
options.maxZoom = options.mapzoomin + options.mapzoomout;
L.Util.setOptions(this, options);
this.projection = new HDProjection($.extend({map: this}, options));
},
getTileName: function(tilePoint, zoom) {
var info = this.getTileInfo(tilePoint, zoom);
// Y is inverted for HD-map.
info.y = -info.y;
info.scaledy = info.y >> 5;
return namedReplace('{prefix}{nightday}/{scaledx}_{scaledy}/{zoom}{x}_{y}.{fmt}', info);
},
zoomprefix: function(amount) {
// amount == 0 -> ''
// amount == 1 -> 'z_'
// amount == 2 -> 'zz_'
return 'zzzzzzzzzzzzzzzzzzzzzz'.substr(0, amount) + (amount === 0 ? '' : '_');
}
});
maptypes.HDMapType = function(options) { return new HDMapType(options); };