qwc2/utils/ElevationInterface.js

QGIS Web Client

/**
 * Copyright 2025 Sourcepole AG
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree.
 */

import axios from "axios";
import ConfigUtils from "./ConfigUtils";

/**
 * Interface for querying elevations/height profiles
 */
var ElevationInterface = {
  /**
   * Query the elevation at the specified position
   *
   * * `pos`: query position, as tuple `[x, y]`
   * * `crs`: CRS of the query position, as an EPSG string
   *
   * Returns: a promise which resolves to an elevation value (in meteres)
   *  or an object with a `list` property containing an array of objects with
   *  `elevation` and `dataset` properties, if multiple datasets are available.
   */
  getElevation: function getElevation(pos, crs) {
    return new Promise(function (resolve, reject) {
      var serviceUrl = ConfigUtils.getConfigProp("elevationServiceUrl", null, "").replace(/\/$/, '');
      if (!serviceUrl) {
        reject(null);
        return;
      }
      axios.get(serviceUrl + '/getelevation', {
        params: {
          pos: pos.join(","),
          crs: crs
        }
      }).then(function (response) {
        var _response$data$elevat;
        resolve((_response$data$elevat = response.data.elevation) !== null && _response$data$elevat !== void 0 ? _response$data$elevat : {
          list: response.data.elevation_list
        });
      })["catch"](function (e) {
        reject(String(e));
      });
    });
  },
  /**
   * Query the elevation profile along the specified line
   *
   * * `coordinates`: line coordinates `[[x1, y1], [x2, y2], ...]`
   * * `distances`: distances of the line segments `[dist1, dist2, ...]`
   * * `crs`: CRS of the line coordinates, as an EPSG string
   * * `samples`: the number of samples
   *
   * Returns a promise which resolves to the elevation values `[z1, z2, ...]`
   *  or an object with a `list` property containing an array of objects with
   *  `elevations` and `dataset` properties, if multiple datasets are available.
   */
  getProfile: function getProfile(coordinates, distances, crs, samples) {
    return new Promise(function (resolve, reject) {
      var serviceUrl = ConfigUtils.getConfigProp("elevationServiceUrl", null, "").replace(/\/$/, '');
      if (!serviceUrl) {
        reject(null);
        return;
      }
      axios.post(serviceUrl + '/getheightprofile', {
        coordinates: coordinates,
        distances: distances,
        projection: crs,
        samples: samples
      }).then(function (response) {
        resolve(response.data.elevations || {
          list: response.data.elevations_list
        });
      })["catch"](function (e) {
        var _e$response;
        var error = (_e$response = e.response) !== null && _e$response !== void 0 && (_e$response = _e$response.data) !== null && _e$response !== void 0 && _e$response.error ? e.response.data.error : e;
        /* eslint-disable-next-line */
        console.log("Query failed: " + error);
        reject(String(error));
      });
    });
  }
};
export function getElevationInterface() {
  var _window$QWC2Elevation;
  return (_window$QWC2Elevation = window.QWC2ElevationInterface) !== null && _window$QWC2Elevation !== void 0 ? _window$QWC2Elevation : ElevationInterface;
}