I am repost the question with some more clarifications. Hope anybody can help me with this. Thanks in advanced
I am render the base map using tileImageryProvider
but instead of returning an image, I returned a canvas object.
The data that represent a single tile is a 2D array of pixel value 0-255 and drawn to an ImageData
Everything work except that level 2+ shows an outline of the tile.
Is this because canvas 2D rendering problem?
Let me know if anyone know how to remedy the problem.