dynmap/web/kzedmaps.js

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function KzedProjection() {}
KzedProjection.prototype = {
fromLatLngToPoint: function(latLng) {
var x = (latLng.lng() * config.tileWidth)|0;
var y = (latLng.lat() * config.tileHeight)|0;
return new google.maps.Point(x, y);
},
fromPointToLatLng: function(point) {
var lng = point.x / config.tileWidth;
var lat = point.y / config.tileHeight;
return new google.maps.LatLng(lat, lng);
},
fromWorldToLatLng: function(x, y, z)
{
var dx = +x;
var dy = +y - 127;
var dz = +z;
var px = dx + dz;
var py = dx - dz - dy;
var lng = -px / config.tileWidth / 2 + 0.5;
var lat = py / config.tileHeight / 2;
return new google.maps.LatLng(lat, lng);
}
};
function KzedMapType(configuration) { $.extend(this, configuration); }
KzedMapType.prototype = $.extend(new DynMapType(), {
constructor: KzedMapType,
projection: new KzedProjection(),
tileSize: new google.maps.Size(128, 128),
minZoom: 0,
maxZoom: 3,
prefix: null,
getTile: function(coord, zoom, doc) {
var tileDebugText = null;
var tileSize = 128;
var tileName;
var imgSize;
var debugred;
var debugblue;
if (zoom == 0) {
// Most zoomed out tiles.
tileSize = 128;
imgSize = tileSize;
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tileName = 'z' + this.prefix + '_' + (-coord.x * tileSize*2) + '_' + (coord.y * tileSize*2) + '.png';
} else {
// Other zoom levels.
tileSize = 128;
imgSize = Math.pow(2, 6+zoom);
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tileName = this.prefix + '_' + (-coord.x*tileSize) + '_' + (coord.y*tileSize) + '.png';
}
var img;
var tile = $('<div/>')
.addClass('tile')
.css({
width: tileSize + 'px',
height: tileSize + 'px'
});
if (tileDebugText) {
$('<span/>')
.text(tileDebugText)
.css({
position: 'absolute',
color: 'red'
})
.appendTo(tile);
}
if (tileName) {
img = $('<img/>')
.attr('src', this.dynmap.getTileUrl(tileName))
.error(function() { img.hide(); })
.bind('load', function() { img.show(); })
.css({
width: imgSize + 'px',
height: imgSize + 'px',
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borderStyle: 'none'
})
.hide()
.appendTo(tile);
this.dynmap.registerTile(this, tileName, img);
} else {
this.dynmap.unregisterTile(this, tileName);
}
return tile.get(0);
},
updateTileSize: function(zoom) {
var size;
if (zoom == 0) {
size = 128;
} else {
size = Math.pow(2, 6+zoom);
}
this.tileSize = new google.maps.Size(size, size);
}
});
maptypes.KzedMapType = function(configuration) { return new KzedMapType(configuration); };