I have sparse 3D data I want to display as a heat map. Does ever cell have to be populated?
What happens if I add data outside the configured Range? For example the size is set to 50x50 cells with a range of -10 to 10. What if I add a point at (11,11)?

My current map is highly asymmetric with a size of 32x5000. The cells are not filling a full +/-.5 width in the long dimension, but are very thin slices. If I have multiple points in a row, for example (1,100) (1,101) (1,1002), there a large gaps of zeros inbetween the cells. If my map is small at 32x32 each cell takes a full pixel width and looks the way I expect it to.

Much appreciated.