createViewFromLayer()

createViewFromLayer(layer): Promise<MapContextView | null>

Creates a view from a layer by extracting its geographic extent. The returned extent is always expressed in EPSG:4326 (longitude/latitude) coordinates.

Parameters

Parameter	Type	Description
layer	MapContextLayer	The map context layer to extract the extent from

Returns

Promise<MapContextView | null>

A Promise resolving to a ViewByExtent object, or null if the extent cannot be determined

Throws

If the layer type is not supported

Example

const wmsLayer: MapContextLayerWms = {
  type: 'wms',
  url: 'https://example.com/wms',
  name: 'myLayer'
};

const view = await createViewFromLayer(wmsLayer);
if (view) {
  console.log('Extent:', view.extent); // [minX, minY, maxX, maxY] in EPSG:4326
}