Apparently, this user prefers to keep an air of mystery about them.
9 Divide a complex shape file into a grid may 14 '12
5 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
4 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