Move tilegrid files so they are named like their provides

2016-08-06 13:12:24 -06:00
parent 9da581cb8f
commit 97d403784d
2 changed files with 0 additions and 0 deletions
@@ -0,0 +1,133 @@
+goog.provide('ol.tilegrid.WMTS');
+
+goog.require('ol.proj');
+goog.require('ol.tilegrid.TileGrid');
+
+
+/**
+ * @classdesc
+ * Set the grid pattern for sources accessing WMTS tiled-image servers.
+ *
+ * @constructor
+ * @extends {ol.tilegrid.TileGrid}
+ * @param {olx.tilegrid.WMTSOptions} options WMTS options.
+ * @struct
+ * @api
+ */
+ol.tilegrid.WMTS = function(options) {
+
+  goog.DEBUG && console.assert(
+      options.resolutions.length == options.matrixIds.length,
+      'options resolutions and matrixIds must have equal length (%s == %s)',
+      options.resolutions.length, options.matrixIds.length);
+
+  /**
+   * @private
+   * @type {!Array.<string>}
+   */
+  this.matrixIds_ = options.matrixIds;
+  // FIXME: should the matrixIds become optionnal?
+
+  ol.tilegrid.TileGrid.call(this, {
+    extent: options.extent,
+    origin: options.origin,
+    origins: options.origins,
+    resolutions: options.resolutions,
+    tileSize: options.tileSize,
+    tileSizes: options.tileSizes,
+    sizes: options.sizes
+  });
+
+};
+ol.inherits(ol.tilegrid.WMTS, ol.tilegrid.TileGrid);
+
+
+/**
+ * @param {number} z Z.
+ * @return {string} MatrixId..
+ */
+ol.tilegrid.WMTS.prototype.getMatrixId = function(z) {
+  goog.DEBUG && console.assert(0 <= z && z < this.matrixIds_.length,
+      'attempted to retrive matrixId for illegal z (%s)', z);
+  return this.matrixIds_[z];
+};
+
+
+/**
+ * Get the list of matrix identifiers.
+ * @return {Array.<string>} MatrixIds.
+ * @api
+ */
+ol.tilegrid.WMTS.prototype.getMatrixIds = function() {
+  return this.matrixIds_;
+};
+
+
+/**
+ * Create a tile grid from a WMTS capabilities matrix set.
+ * @param {Object} matrixSet An object representing a matrixSet in the
+ *     capabilities document.
+ * @param {ol.Extent=} opt_extent An optional extent to restrict the tile
+ *     ranges the server provides.
+ * @return {ol.tilegrid.WMTS} WMTS tileGrid instance.
+ * @api
+ */
+ol.tilegrid.WMTS.createFromCapabilitiesMatrixSet = function(matrixSet, opt_extent) {
+
+  /** @type {!Array.<number>} */
+  var resolutions = [];
+  /** @type {!Array.<string>} */
+  var matrixIds = [];
+  /** @type {!Array.<ol.Coordinate>} */
+  var origins = [];
+  /** @type {!Array.<ol.Size>} */
+  var tileSizes = [];
+  /** @type {!Array.<ol.Size>} */
+  var sizes = [];
+
+  var supportedCRSPropName = 'SupportedCRS';
+  var matrixIdsPropName = 'TileMatrix';
+  var identifierPropName = 'Identifier';
+  var scaleDenominatorPropName = 'ScaleDenominator';
+  var topLeftCornerPropName = 'TopLeftCorner';
+  var tileWidthPropName = 'TileWidth';
+  var tileHeightPropName = 'TileHeight';
+
+  var projection;
+  projection = ol.proj.get(matrixSet[supportedCRSPropName].replace(
+      /urn:ogc:def:crs:(\w+):(.*:)?(\w+)$/, '$1:$3'));
+  var metersPerUnit = projection.getMetersPerUnit();
+  // swap origin x and y coordinates if axis orientation is lat/long
+  var switchOriginXY = projection.getAxisOrientation().substr(0, 2) == 'ne';
+
+  matrixSet[matrixIdsPropName].sort(function(a, b) {
+    return b[scaleDenominatorPropName] - a[scaleDenominatorPropName];
+  });
+
+  matrixSet[matrixIdsPropName].forEach(function(elt, index, array) {
+    matrixIds.push(elt[identifierPropName]);
+    var resolution = elt[scaleDenominatorPropName] * 0.28E-3 / metersPerUnit;
+    var tileWidth = elt[tileWidthPropName];
+    var tileHeight = elt[tileHeightPropName];
+    if (switchOriginXY) {
+      origins.push([elt[topLeftCornerPropName][1],
+        elt[topLeftCornerPropName][0]]);
+    } else {
+      origins.push(elt[topLeftCornerPropName]);
+    }
+    resolutions.push(resolution);
+    tileSizes.push(tileWidth == tileHeight ?
+        tileWidth : [tileWidth, tileHeight]);
+    // top-left origin, so height is negative
+    sizes.push([elt['MatrixWidth'], -elt['MatrixHeight']]);
+  });
+
+  return new ol.tilegrid.WMTS({
+    extent: opt_extent,
+    origins: origins,
+    resolutions: resolutions,
+    matrixIds: matrixIds,
+    tileSizes: tileSizes,
+    sizes: sizes
+  });
+};