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Only support square tiles

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This commit is contained in:
Tom Payne
2014-01-15 09:45:49 +01:00
parent 50a322208a
commit d5c1e53e48
13 changed files with 89 additions and 93 deletions
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src/ol/tilegrid/tilegrid.js
+22 -25
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@@ -3,7 +3,6 @@ goog.provide('ol.tilegrid.TileGrid');
goog.require('goog.array');
goog.require('goog.asserts');
goog.require('ol.Coordinate');
goog.require('ol.Size');
goog.require('ol.TileCoord');
goog.require('ol.TileRange');
goog.require('ol.array');
@@ -75,7 +74,7 @@ ol.tilegrid.TileGrid = function(options) {
/**
* @private
* @type {Array.<ol.Size>}
* @type {Array.<number>}
*/
this.tileSizes_ = null;
if (goog.isDef(options.tileSizes)) {
@@ -85,15 +84,14 @@ ol.tilegrid.TileGrid = function(options) {
/**
* @private
* @type {ol.Size}
* @type {number|undefined}
*/
this.tileSize_ = goog.isDef(options.tileSize) ?
options.tileSize :
goog.isNull(this.tileSizes_) ?
[ol.DEFAULT_TILE_SIZE, ol.DEFAULT_TILE_SIZE] : null;
goog.isNull(this.tileSizes_) ? ol.DEFAULT_TILE_SIZE : undefined;
goog.asserts.assert(
(goog.isNull(this.tileSize_) && !goog.isNull(this.tileSizes_)) ||
(!goog.isNull(this.tileSize_) && goog.isNull(this.tileSizes_)));
(!goog.isDef(this.tileSize_) && !goog.isNull(this.tileSizes_)) ||
(goog.isDef(this.tileSize_) && goog.isNull(this.tileSizes_)));
};
@@ -220,10 +218,10 @@ ol.tilegrid.TileGrid.prototype.getTileRangeExtent =
var origin = this.getOrigin(z);
var resolution = this.getResolution(z);
var tileSize = this.getTileSize(z);
var minX = origin[0] + tileRange.minX * tileSize[0] * resolution;
var maxX = origin[0] + (tileRange.maxX + 1) * tileSize[0] * resolution;
var minY = origin[1] + tileRange.minY * tileSize[1] * resolution;
var maxY = origin[1] + (tileRange.maxY + 1) * tileSize[1] * resolution;
var minX = origin[0] + tileRange.minX * tileSize * resolution;
var maxX = origin[0] + (tileRange.maxX + 1) * tileSize * resolution;
var minY = origin[1] + tileRange.minY * tileSize * resolution;
var maxY = origin[1] + (tileRange.maxY + 1) * tileSize * resolution;
return ol.extent.createOrUpdate(minX, minY, maxX, maxY, opt_extent);
};
@@ -271,8 +269,8 @@ ol.tilegrid.TileGrid.prototype.getTileCoordCenter = function(tileCoord) {
var resolution = this.getResolution(tileCoord.z);
var tileSize = this.getTileSize(tileCoord.z);
return [
origin[0] + (tileCoord.x + 0.5) * tileSize[0] * resolution,
origin[1] + (tileCoord.y + 0.5) * tileSize[1] * resolution
origin[0] + (tileCoord.x + 0.5) * tileSize * resolution,
origin[1] + (tileCoord.y + 0.5) * tileSize * resolution
];
};
@@ -287,10 +285,10 @@ ol.tilegrid.TileGrid.prototype.getTileCoordExtent =
var origin = this.getOrigin(tileCoord.z);
var resolution = this.getResolution(tileCoord.z);
var tileSize = this.getTileSize(tileCoord.z);
var minX = origin[0] + tileCoord.x * tileSize[0] * resolution;
var minY = origin[1] + tileCoord.y * tileSize[1] * resolution;
var maxX = minX + tileSize[0] * resolution;
var maxY = minY + tileSize[1] * resolution;
var minX = origin[0] + tileCoord.x * tileSize * resolution;
var minY = origin[1] + tileCoord.y * tileSize * resolution;
var maxX = minX + tileSize * resolution;
var maxY = minY + tileSize * resolution;
return ol.extent.createOrUpdate(minX, minY, maxX, maxY, opt_extent);
};
@@ -330,8 +328,8 @@ ol.tilegrid.TileGrid.prototype.getTileCoordForXYAndResolution_ = function(
var origin = this.getOrigin(z);
var tileSize = this.getTileSize(z);
var tileCoordX = scale * (x - origin[0]) / (resolution * tileSize[0]);
var tileCoordY = scale * (y - origin[1]) / (resolution * tileSize[1]);
var tileCoordX = scale * (x - origin[0]) / (resolution * tileSize);
var tileCoordY = scale * (y - origin[1]) / (resolution * tileSize);
if (reverseIntersectionPolicy) {
tileCoordX = Math.ceil(tileCoordX) - 1;
@@ -372,11 +370,11 @@ ol.tilegrid.TileGrid.prototype.getTileCoordResolution = function(tileCoord) {
/**
* @param {number} z Z.
* @return {ol.Size} Tile size.
* @return {number} Tile size.
* @todo stability experimental
*/
ol.tilegrid.TileGrid.prototype.getTileSize = function(z) {
if (!goog.isNull(this.tileSize_)) {
if (goog.isDef(this.tileSize_)) {
return this.tileSize_;
} else {
goog.asserts.assert(!goog.isNull(this.tileSizes_));
@@ -412,7 +410,7 @@ ol.tilegrid.getForProjection = function(projection) {
/**
* @param {ol.proj.Projection} projection Projection.
* @param {number=} opt_maxZoom Maximum zoom level.
* @param {ol.Size=} opt_tileSize Tile size.
* @param {number=} opt_tileSize Tile size.
* @return {ol.tilegrid.TileGrid} TileGrid instance.
*/
ol.tilegrid.createForProjection =
@@ -425,10 +423,9 @@ ol.tilegrid.createForProjection =
projectionExtent[3] - projectionExtent[1]);
var maxZoom = goog.isDef(opt_maxZoom) ?
opt_maxZoom : ol.DEFAULT_MAX_ZOOM;
var tileSize = goog.isDef(opt_tileSize) ?
opt_tileSize : [ol.DEFAULT_TILE_SIZE, ol.DEFAULT_TILE_SIZE];
var tileSize = goog.isDef(opt_tileSize) ? opt_tileSize : ol.DEFAULT_TILE_SIZE;
var resolutions = new Array(maxZoom + 1);
var maxResolution = size / Math.max(tileSize[0], tileSize[1]);
var maxResolution = size / tileSize;
for (var z = 0, zz = resolutions.length; z < zz; ++z) {
resolutions[z] = maxResolution / Math.pow(2, z);
}