186 lines
3.6 KiB
JavaScript
186 lines
3.6 KiB
JavaScript
goog.provide('ol.VectorTile');
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goog.require('ol');
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goog.require('ol.Tile');
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goog.require('ol.TileState');
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/**
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* @constructor
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* @extends {ol.Tile}
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* @param {ol.TileCoord} tileCoord Tile coordinate.
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* @param {ol.TileState} state State.
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* @param {string} src Data source url.
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* @param {ol.format.Feature} format Feature format.
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* @param {ol.TileLoadFunctionType} tileLoadFunction Tile load function.
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*/
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ol.VectorTile = function(tileCoord, state, src, format, tileLoadFunction) {
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ol.Tile.call(this, tileCoord, state);
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/**
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* @type {number}
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*/
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this.consumers = 0;
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/**
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* @private
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* @type {ol.format.Feature}
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*/
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this.format_ = format;
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/**
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* @private
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* @type {Array.<ol.Feature>}
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*/
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this.features_ = null;
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/**
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* @private
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* @type {ol.FeatureLoader}
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*/
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this.loader_;
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/**
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* Data projection
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* @private
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* @type {ol.proj.Projection}
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*/
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this.projection_;
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this.replayGroups_ = {};
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/**
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* @private
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* @type {ol.TileLoadFunctionType}
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*/
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this.tileLoadFunction_ = tileLoadFunction;
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/**
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* @private
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* @type {string}
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*/
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this.url_ = src;
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};
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ol.inherits(ol.VectorTile, ol.Tile);
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/**
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* Get the feature format assigned for reading this tile's features.
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* @return {ol.format.Feature} Feature format.
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* @api
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*/
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ol.VectorTile.prototype.getFormat = function() {
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return this.format_;
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};
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/**
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* Get the features for this tile. Geometries will be in the projection returned
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* by {@link #getProjection}.
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* @return {Array.<ol.Feature|ol.render.Feature>} Features.
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* @api
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*/
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ol.VectorTile.prototype.getFeatures = function() {
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return this.features_;
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};
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/**
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* @inheritDoc
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*/
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ol.VectorTile.prototype.getKey = function() {
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return this.url_;
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};
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/**
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* Get the feature projection of features returned by {@link #getFeatures}.
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* @return {ol.proj.Projection} Feature projection.
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* @api
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*/
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ol.VectorTile.prototype.getProjection = function() {
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return this.projection_;
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};
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ol.VectorTile.prototype.getReplayGroup = function(key) {
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return this.replayGroups_[key];
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};
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/**
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* @inheritDoc
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*/
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ol.VectorTile.prototype.load = function() {
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if (this.state == ol.TileState.IDLE) {
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this.setState(ol.TileState.LOADING);
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this.tileLoadFunction_(this, this.url_);
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this.loader_(null, NaN, null);
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}
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};
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/**
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* Handler for successful tile load.
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* @param {Array.<ol.Feature>} features The loaded features.
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* @param {ol.proj.Projection} dataProjection Data projection.
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*/
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ol.VectorTile.prototype.onLoad_ = function(features, dataProjection) {
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this.setProjection(dataProjection);
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this.setFeatures(features);
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};
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/**
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* Handler for tile load errors.
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*/
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ol.VectorTile.prototype.onError_ = function() {
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this.setState(ol.TileState.ERROR);
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};
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/**
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* @param {Array.<ol.Feature>} features Features.
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* @api
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*/
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ol.VectorTile.prototype.setFeatures = function(features) {
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this.features_ = features;
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this.setState(ol.TileState.LOADED);
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};
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/**
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* Set the projection of the features that were added with {@link #setFeatures}.
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* @param {ol.proj.Projection} projection Feature projection.
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* @api
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*/
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ol.VectorTile.prototype.setProjection = function(projection) {
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this.projection_ = projection;
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};
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ol.VectorTile.prototype.setReplayGroup = function(key, replayGroup) {
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this.replayGroups_[key] = replayGroup;
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};
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/**
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* @param {ol.TileState} tileState Tile state.
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*/
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ol.VectorTile.prototype.setState = function(tileState) {
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this.state = tileState;
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this.changed();
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};
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/**
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* Set the feature loader for reading this tile's features.
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* @param {ol.FeatureLoader} loader Feature loader.
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* @api
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*/
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ol.VectorTile.prototype.setLoader = function(loader) {
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this.loader_ = loader;
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};
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