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node_modules/ol/source/TileArcGISRest.js

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