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240 lines
10 KiB
JavaScript
240 lines
10 KiB
JavaScript
/**
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* @module ol/source/TileArcGISRest
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*/
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var __extends = (this && this.__extends) || (function () {
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var extendStatics = function (d, b) {
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extendStatics = Object.setPrototypeOf ||
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({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
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function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
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return extendStatics(d, b);
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};
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return function (d, b) {
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if (typeof b !== "function" && b !== null)
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throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
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extendStatics(d, b);
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function __() { this.constructor = d; }
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d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
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};
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})();
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import TileImage from './TileImage.js';
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import { appendParams } from '../uri.js';
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import { assign } from '../obj.js';
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import { createEmpty } from '../extent.js';
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import { modulo } from '../math.js';
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import { scale as scaleSize, toSize } from '../size.js';
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import { hash as tileCoordHash } from '../tilecoord.js';
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/**
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* @typedef {Object} Options
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* @property {import("./Source.js").AttributionLike} [attributions] Attributions.
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* @property {number} [cacheSize] Initial tile cache size. Will auto-grow to hold at least the number of tiles in the viewport.
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* @property {null|string} [crossOrigin] The `crossOrigin` attribute for loaded images. Note that
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* you must provide a `crossOrigin` value if you want to access pixel data with the Canvas renderer.
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* See https://developer.mozilla.org/en-US/docs/Web/HTML/CORS_enabled_image for more detail.
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* @property {boolean} [imageSmoothing=true] Deprecated. Use the `interpolate` option instead.
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* @property {boolean} [interpolate=true] Use interpolated values when resampling. By default,
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* linear interpolation is used when resampling. Set to false to use the nearest neighbor instead.
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* @property {Object<string,*>} [params] ArcGIS Rest parameters. This field is optional. Service defaults will be
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* used for any fields not specified. `FORMAT` is `PNG32` by default. `F` is `IMAGE` by
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* default. `TRANSPARENT` is `true` by default. `BBOX`, `SIZE`, `BBOXSR`,
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* and `IMAGESR` will be set dynamically. Set `LAYERS` to
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* override the default service layer visibility. See
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* https://developers.arcgis.com/rest/services-reference/export-map.htm
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* for further reference.
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* @property {boolean} [hidpi=true] Use the `ol/Map#pixelRatio` value when requesting
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* the image from the remote server.
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* @property {import("../tilegrid/TileGrid.js").default} [tileGrid] Tile grid. Base this on the resolutions,
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* tilesize and extent supported by the server.
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* If this is not defined, a default grid will be used: if there is a projection
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* extent, the grid will be based on that; if not, a grid based on a global
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* extent with origin at 0,0 will be used.
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* @property {import("../proj.js").ProjectionLike} [projection] Projection. Default is the view projection.
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* The projection code must contain a numeric end portion separated by :
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* or the entire code must form a valid ArcGIS SpatialReference definition.
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* @property {number} [reprojectionErrorThreshold=0.5] Maximum allowed reprojection error (in pixels).
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* Higher values can increase reprojection performance, but decrease precision.
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* @property {import("../Tile.js").LoadFunction} [tileLoadFunction] Optional function to load a tile given a URL.
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* The default is
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* ```js
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* function(imageTile, src) {
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* imageTile.getImage().src = src;
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* };
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* ```
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* @property {string} [url] ArcGIS Rest service URL for a Map Service or Image Service. The
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* url should include /MapServer or /ImageServer.
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* @property {boolean} [wrapX=true] Whether to wrap the world horizontally.
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* @property {number} [transition] Duration of the opacity transition for rendering. To disable the opacity
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* transition, pass `transition: 0`.
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* @property {Array<string>} [urls] ArcGIS Rest service urls. Use this instead of `url` when the ArcGIS
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* Service supports multiple urls for export requests.
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* @property {number|import("../array.js").NearestDirectionFunction} [zDirection=0]
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* Choose whether to use tiles with a higher or lower zoom level when between integer
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* zoom levels. See {@link module:ol/tilegrid/TileGrid~TileGrid#getZForResolution}.
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*/
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/**
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* @classdesc
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* Layer source for tile data from ArcGIS Rest services. Map and Image
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* Services are supported.
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*
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* For cached ArcGIS services, better performance is available using the
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* {@link module:ol/source/XYZ~XYZ} data source.
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* @api
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*/
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var TileArcGISRest = /** @class */ (function (_super) {
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__extends(TileArcGISRest, _super);
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/**
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* @param {Options} [opt_options] Tile ArcGIS Rest options.
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*/
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function TileArcGISRest(opt_options) {
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var _this = this;
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var options = opt_options ? opt_options : {};
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var interpolate = options.imageSmoothing !== undefined ? options.imageSmoothing : true;
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if (options.interpolate !== undefined) {
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interpolate = options.interpolate;
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}
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_this = _super.call(this, {
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attributions: options.attributions,
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cacheSize: options.cacheSize,
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crossOrigin: options.crossOrigin,
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interpolate: interpolate,
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projection: options.projection,
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reprojectionErrorThreshold: options.reprojectionErrorThreshold,
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tileGrid: options.tileGrid,
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tileLoadFunction: options.tileLoadFunction,
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url: options.url,
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urls: options.urls,
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wrapX: options.wrapX !== undefined ? options.wrapX : true,
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transition: options.transition,
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zDirection: options.zDirection,
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}) || this;
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/**
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* @private
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* @type {!Object}
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*/
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_this.params_ = options.params || {};
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/**
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* @private
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* @type {boolean}
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*/
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_this.hidpi_ = options.hidpi !== undefined ? options.hidpi : true;
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/**
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* @private
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* @type {import("../extent.js").Extent}
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*/
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_this.tmpExtent_ = createEmpty();
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_this.setKey(_this.getKeyForParams_());
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return _this;
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}
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/**
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* @private
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* @return {string} The key for the current params.
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*/
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TileArcGISRest.prototype.getKeyForParams_ = function () {
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var i = 0;
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var res = [];
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for (var key in this.params_) {
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res[i++] = key + '-' + this.params_[key];
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}
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return res.join('/');
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};
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/**
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* Get the user-provided params, i.e. those passed to the constructor through
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* the "params" option, and possibly updated using the updateParams method.
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* @return {Object} Params.
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* @api
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*/
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TileArcGISRest.prototype.getParams = function () {
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return this.params_;
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};
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/**
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* @param {import("../tilecoord.js").TileCoord} tileCoord Tile coordinate.
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* @param {import("../size.js").Size} tileSize Tile size.
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* @param {import("../extent.js").Extent} tileExtent Tile extent.
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* @param {number} pixelRatio Pixel ratio.
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* @param {import("../proj/Projection.js").default} projection Projection.
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* @param {Object} params Params.
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* @return {string|undefined} Request URL.
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* @private
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*/
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TileArcGISRest.prototype.getRequestUrl_ = function (tileCoord, tileSize, tileExtent, pixelRatio, projection, params) {
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var urls = this.urls;
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if (!urls) {
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return undefined;
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}
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// ArcGIS Server only wants the numeric portion of the projection ID.
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// (if there is no numeric portion the entire projection code must
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// form a valid ArcGIS SpatialReference definition).
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var srid = projection
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.getCode()
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.split(/:(?=\d+$)/)
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.pop();
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params['SIZE'] = tileSize[0] + ',' + tileSize[1];
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params['BBOX'] = tileExtent.join(',');
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params['BBOXSR'] = srid;
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params['IMAGESR'] = srid;
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params['DPI'] = Math.round(params['DPI'] ? params['DPI'] * pixelRatio : 90 * pixelRatio);
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var url;
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if (urls.length == 1) {
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url = urls[0];
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}
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else {
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var index = modulo(tileCoordHash(tileCoord), urls.length);
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url = urls[index];
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}
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var modifiedUrl = url
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.replace(/MapServer\/?$/, 'MapServer/export')
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.replace(/ImageServer\/?$/, 'ImageServer/exportImage');
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return appendParams(modifiedUrl, params);
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};
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/**
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* Get the tile pixel ratio for this source.
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* @param {number} pixelRatio Pixel ratio.
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* @return {number} Tile pixel ratio.
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*/
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TileArcGISRest.prototype.getTilePixelRatio = function (pixelRatio) {
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return this.hidpi_ ? pixelRatio : 1;
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};
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/**
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* Update the user-provided params.
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* @param {Object} params Params.
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* @api
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*/
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TileArcGISRest.prototype.updateParams = function (params) {
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assign(this.params_, params);
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this.setKey(this.getKeyForParams_());
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};
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/**
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* @param {import("../tilecoord.js").TileCoord} tileCoord The tile coordinate
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* @param {number} pixelRatio The pixel ratio
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* @param {import("../proj/Projection.js").default} projection The projection
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* @return {string|undefined} The tile URL
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* @override
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*/
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TileArcGISRest.prototype.tileUrlFunction = function (tileCoord, pixelRatio, projection) {
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var tileGrid = this.getTileGrid();
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if (!tileGrid) {
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tileGrid = this.getTileGridForProjection(projection);
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}
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if (tileGrid.getResolutions().length <= tileCoord[0]) {
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return undefined;
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}
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if (pixelRatio != 1 && !this.hidpi_) {
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pixelRatio = 1;
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}
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var tileExtent = tileGrid.getTileCoordExtent(tileCoord, this.tmpExtent_);
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var tileSize = toSize(tileGrid.getTileSize(tileCoord[0]), this.tmpSize);
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if (pixelRatio != 1) {
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tileSize = scaleSize(tileSize, pixelRatio, this.tmpSize);
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}
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// Apply default params and override with user specified values.
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var baseParams = {
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'F': 'image',
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'FORMAT': 'PNG32',
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'TRANSPARENT': true,
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};
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assign(baseParams, this.params_);
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return this.getRequestUrl_(tileCoord, tileSize, tileExtent, pixelRatio, projection, baseParams);
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};
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return TileArcGISRest;
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}(TileImage));
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export default TileArcGISRest;
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//# sourceMappingURL=TileArcGISRest.js.map
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