Feat/bounding-box-cache

[Ahmedhossamdev]

#51

[aaronbrethorst]

I like the way you've structured this. I think it looks good, but I see a lot of cache misses, even when I drag into the same area over and over.

Can you think of ways we could increase the cache hit rate?

[Ahmedhossamdev]

@aaronbrethorst

I think we can set the digits after the point to be fixed to 1 or 2 digits only, and we can increase the radius as well; this will improve the cache hit for sure, and if users want to load more data, they can invalidate the cache by zooming in.