I generated a tessellation with counts over the cont US for thousands of lat/long points. After joining data and setting quantity ranges for a heat map there is a lot of empty space. Drawing of the tessellation is also quite slow. Is there a way to mask out the empty polygons (0 value) and only display those with meaning? I imagine this would speed up the drawing as well.
making them empty or setting them to null won't speed up the drawing. It is more likely that your tessellation is too detailed or your video card and/or driver are not current or under-powered
