Any idea to get center coordinate in each tile from basemap?

Question

I want to get center coordinate in each tile from basemap.

I am using JS API and I can get origin, level, row and colum.

So I think I can get center point by using math calculation.

But I do not have any idea...

I attached an image to show what I want to know.

Any help would be great!

JohnGrayson · Answer

If using BaseTileLayer you can use the getTileBound() method.

anweshponugumati2 · Answer

Hi Any luck with solution for this?

ThomasSolow · Answer

Hmm, that's a harder problem.  Thinking about it, there should be a way to figure out of the center of each tile if you know the row, column, origin, and resolution.

Speaking generally, I would think that the x, y would be (col + .5) * resolution, (row + .5) * resolution (assuming the tile coordinates are 0 based).  But I'm unsure how the "tile grid" is oriented compared to the web mercator x, y axis.  Maybe you can figure this out based on the origin that is passed into the TileInfo.

I'll take a look at the source code and see if I can find an example of this being done.