70 lines
1.4 KiB
JavaScript
70 lines
1.4 KiB
JavaScript
goog.provide('ol.TileCoverageArea');
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goog.require('ol.CoverageArea');
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goog.require('ol.Extent');
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goog.require('ol.tilegrid.TileGrid');
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/**
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* @constructor
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* @extends {ol.CoverageArea}
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* @param {ol.tilegrid.TileGrid} tileGrid Tile grid.
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* @param {ol.Extent} extent Extent.
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* @param {number} minZ Minimum Z.
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* @param {number} maxZ Maximum Z.
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*/
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ol.TileCoverageArea = function(tileGrid, extent, minZ, maxZ) {
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goog.base(this, extent);
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/**
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* @private
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* @type {ol.tilegrid.TileGrid}
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*/
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this.tileGrid_ = tileGrid;
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/**
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* @private
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* @type {number}
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*/
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this.minZ_ = minZ;
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/**
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* @private
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* @type {number}
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*/
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this.maxZ_ = maxZ;
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};
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goog.inherits(ol.TileCoverageArea, ol.CoverageArea);
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/**
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* @inheritDoc
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*/
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ol.TileCoverageArea.prototype.intersectsExtentAndResolution =
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function(extent, resolution) {
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var z = this.tileGrid_.getZForResolution(resolution);
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return this.intersectsExtentAndZ(extent, z);
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};
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/**
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* @inheritDoc
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*/
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ol.TileCoverageArea.prototype.intersectsExtentAndZ = function(extent, z) {
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return this.minZ_ <= z && z <= this.maxZ_ && this.intersectsExtent(extent);
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};
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/**
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* @param {ol.TransformFunction} transformFn Transform.
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* @return {ol.TileCoverageArea} Transformed tile coverage area.
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*/
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ol.TileCoverageArea.prototype.transform = function(transformFn) {
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var extent = this.extent.transform(transformFn);
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return new ol.TileCoverageArea(
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this.tileGrid_, extent, this.minZ_, this.maxZ_);
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};
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