catalogUtils | API Reference | ArcGIS Maps SDK for JavaScript 4.30

See also

CatalogLayer

Method Overview

Name	Return Type	Summary	Object
	CatalogLayer\|null\|undefined	Utility method to get the parent CatalogLayer for a given layer in CatalogDynamicGroupLayer.layers collection.	catalogUtils
	Boolean	Utility method to check if the layer is temporarily available in the map and can be removed at any time because it is part of a CatalogLayer.	catalogUtils

Method Details

getCatalogLayerForLayer Method getCatalogLayerForLayer(layer){CatalogLayer |null |undefined}

Utility method to get the parent CatalogLayer for a given layer in CatalogDynamicGroupLayer.layers collection.

Parameter

layer Layer

The layer for which the CatalogLayer is to be retrieved.

Returns

Type	Description
CatalogLayer \| null \| undefined	The catalog for that layer when it can be found.

Example

// Highlight the footprint for a layer if it's part of a catalog dynamic grouplayer.
function highlightFootprintForLayer(view, layer) {
  const catalog = getCatalogLayerForLayer(layer);

  if (catalog) {
    const footprint = catalog.createFootprintFromLayer(layer);

    if (footprint) {
      const catalogLayerView = view.allLayerViews.find((layerView) => layerView.layer === catalog);
      return catalogLayerView?.footprintLayerView?.highlight(footprint);
    }
  }

  return { remove() {} };
}

isLayerFromCatalog Method isLayerFromCatalog(layer){Boolean}

Utility method to check if the layer is temporarily available in the map and can be removed at any time because it is part of a CatalogLayer.

It recursively checks if the layer's parent is CatalogLayer.

Use this utility to selectively exclude layers from your user experience. For example, to limit the options available for these layers in the LayerList.

Parameter

layer Layer

The layer to test.

Returns

Type	Description
Boolean	`true` if the layer or its parent is part of a catalog.

Example

// Get all layer not part of a catalog.
const layers = map.allLayers.filter((layer) => !isLayerFromCatalog(layer))