Function cameraToOrthogonal

cameraToOrthogonal(
camera: ViewerCameraState,
viewToWorldScale: number,
): BCFOrthogonalCamera
Convert viewer camera state to BCF orthogonal camera

Also converts from viewer's Y-up to BCF's Z-up coordinate system.
Parameters
- camera: ViewerCameraState
- viewToWorldScale: number
Returns BCFOrthogonalCamera