flywave-mapview.mapviewutils.raycastworldcoordinates

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MapViewUtils.rayCastWorldCoordinates() function

Casts a ray in NDC space from the current map view and returns the intersection point of that ray wih the map in world space.

Signature:

function rayCastWorldCoordinates(mapView: MapView | {
        camera: THREE.Camera;
        projection: Projection;
    }, pointOnScreenXinNDC: number, pointOnScreenYinNDC: number, elevation?: number): THREE.Vector3 | null;

Parameters

Parameter	Type	Description
mapView	MapView | { camera: THREE.Camera; projection: Projection; }	Instance of MapView.
pointOnScreenXinNDC	number	X coordinate in NDC space.
pointOnScreenYinNDC	number	Y coordinate in NDC space.
elevation	number	(Optional) Optional param used to offset the ground plane. Used when wanting to pan based on a plane at some altitude. Necessary for example when panning with terrain.

Returns:

THREE.Vector3 \| null

Intersection coordinates, or `null` if raycast failed.