Map tile background images?

[Israel Brewster]

Since my previous question on if I could use a SVG as an image in pyqtgraph didn't garner any replies (or even views, really), I was thinking of taking a different tact: instead of using an SVG that could scale smoothly to any size, how about using different images for different zoom levels? Is there a way to do that with pyqtgraph? The main difficulty I am running into here is that pyqtgraph doesn't really seem to have a concept of "zoom level", rather just zooming in/out smoothly to any "level". So what sort of approach might work to be able to use smaller, but higher resolution, imagery at higher zoom levels and larger, lower resolution imagery at lower zoom levels? Thanks.