Apparently, this user prefers to keep an air of mystery about them.
10 Divide a complex shape file into a grid May 14 '12
8 Point of Intersection for a Ray and Earth's Surface Feb 24 '12
5 Convert Nasa's Blue Marble into a cubic projection Apr 29 '12
5 Divide a complex shape file into a grid May 19 '12
3 Finding the minimum and maximum distance between an observer and a lat/lon bounding box Mar 11 '12
3 How do I detect solid fill tiles in mapnik? Feb 20 '13