Method enableOverlayLayers

modules/core/ImagerySystem.js:516–531

* enableOverlayLayers * This makes sure that only the overlays identified by `enableIDs` are in the list * ignoring the "locator overlay" * @param {Set|Array} enableIDs Iterable Set or Array of sourceIDs to enable

(enableIDs)

   * @param  {Set|Array}  enableIDs  Iterable Set or Array of sourceIDs to enable
   */
  enableOverlayLayers(enableIDs) {
    for (const [sourceID, source] of this._overlayLayers) {
      if (source.isLocatorOverlay()) continue;  // ignore this one
      this._overlayLayers.delete(sourceID);     // remove all others
    }

    for (const enableID of enableIDs) {             // add what belongs
      const source = this.getSourceByID(enableID);  // note that enableID is case insensitive
      if (source) {
        this._overlayLayers.set(source.id, source);
      }
    }

    this._imageryChanged();
    this.emit('imagerychange');
  }


  /**