The 2D drawing surface drawMapImage needs. Both CanvasRenderingContext2D and OffscreenCanvasRenderingContext2D satisfy it.
CanvasRenderingContext2D
OffscreenCanvasRenderingContext2D
The 2D drawing surface drawMapImage needs. Both
CanvasRenderingContext2DandOffscreenCanvasRenderingContext2Dsatisfy it.