0
votes
0answers
83 views

Custom UTF Grid Renderer performance improvement help

Back in November I asked a question (Create interactive map with no server) and had lots of great responses all of which I tried but because my dataset was so large I wrote my own custom UTF Grid ...
3
votes
1answer
516 views

Calculate bounding box + buffer for rendering a map tile with mapnik library

Mapnik library has a Projection object (I'm using Python bindings): spherical_mercator = '+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null ...