https://cuyamacawaterdistrict.org/ScriptResource.axd?d=Ke3RP4OZZzx…JuTU4dEcRwS7ZCMB4EOzvzY1&t=ffffffffda74082d

1// Name:        Seadragon.Seadragon.TileSource.debug.js
2// Assembly:    AjaxControlToolkit
3// Version:     4.5.7.1213
4// FileVersion: 4.5.7.1213
5// (c) 2010 CodePlex Foundation
6Type.registerNamespace('Sys.Extended.UI.Seadragon');
7
8
9Sys.Extended.UI.Seadragon.TileSource = function(width, height, tileSize, tileOverlap, minLevel, maxLevel) {
10    this.aspectRatio = width / height;
11    this.dimensions = new Sys.Extended.UI.Seadragon.Point(width, height);
12    this.minLevel = minLevel ? minLevel : 0;
13    this.maxLevel = maxLevel ? maxLevel :
14            Math.ceil(Math.log(Math.max(width, height)) / Math.log(2));
15    this.tileSize = tileSize ? tileSize : 0;
16    this.tileOverlap = tileOverlap ? tileOverlap : 0;
17};
18Sys.Extended.UI.Seadragon.TileSource.prototype = {
19    getLevelScale: function(level) {
20        return 1 / (1 << (this.maxLevel - level));
21    },
22
23    getNumTiles: function(level) {
24        var scale = this.getLevelScale(level);
25        var x = Math.ceil(scale * this.dimensions.x / this.tileSize);
26        var y = Math.ceil(scale * this.dimensions.y / this.tileSize);
27
28        return new Sys.Extended.UI.Seadragon.Point(x, y);
29    },
30
31    getPixelRatio: function(level) {
32        var imageSizeScaled = this.dimensions.times(this.getLevelScale(level));
33        var rx = 1.0 / imageSizeScaled.x;
34        var ry = 1.0 / imageSizeScaled.y;
35
36        return new Sys.Extended.UI.Seadragon.Point(rx, ry);
37    },
38
39    getTileAtPoint: function(level, point) {
40        var pixel = point.times(this.dimensions.x).times(this.getLevelScale(level));
41
42        var tx = Math.floor(pixel.x / this.tileSize);
43        var ty = Math.floor(pixel.y / this.tileSize);
44
45        return new Sys.Extended.UI.Seadragon.Point(tx, ty);
46    },
47
48    getTileBounds: function(level, x, y) {
49        var dimensionsScaled = this.dimensions.times(this.getLevelScale(level));
50
51        var px = (x === 0) ? 0 : this.tileSize * x - this.tileOverlap;
52        var py = (y === 0) ? 0 : this.tileSize * y - this.tileOverlap;
53
54        var sx = this.tileSize + (x === 0 ? 1 : 2) * this.tileOverlap;
55        var sy = this.tileSize + (y === 0 ? 1 : 2) * this.tileOverlap;
56
57        sx = Math.min(sx, dimensionsScaled.x - px);
58        sy = Math.min(sy, dimensionsScaled.y - py);
59
60        var scale = 1.0 / dimensionsScaled.x;
61        return new Sys.Extended.UI.Seadragon.Rect(px * scale, py * scale, sx * scale, sy * scale);
62    },
63
64    getTileUrl: function(level, x, y) {
65        throw new Error("Method not implemented.");
66    },
67
68    tileExists: function(level, x, y) {
69        var numTiles = this.getNumTiles(level);
70        return level >= this.minLevel && level <= this.maxLevel &&
71                x >= 0 && y >= 0 && x < numTiles.x && y < numTiles.y;
72    }
73};
74Sys.Extended.UI.Seadragon.TileSource.registerClass('Sys.Extended.UI.Seadragon.TileSource', null, Sys.IDisposable);