Take a look at geocoder.us for some great geocoding in action. | [reply] |
For geocoding / user mapping, it's worth looking at:
Geo::TigerLine
Geo::Coder::US ( and http://geocoder.us )
http://civicspacelabs.org/zipcodedb/
for shape drawing and projection, check out:
Geo::GDAL
Geo::Shapelib (which has a much nicer API than Geo::Shapefile)
UMN MapServer rocks, and talks to free GIS backends like PostGIS. GRASS walks all over ESRI; http://freegis.org/ hopefully suggests that you have no need to buy ESRI products.
xoxo | [reply] |
Here here! I've mentioned many a time in the CB that zip codes are (not necessarily contiguous) polylines in 3 space,
not polygons. ZCTAs are also usable for this kid of thing --
Zip Code Tabulation Areas are the Census Bureau's solution to the hairy nature of zip codes. Other census ploygons such
as block groups are good too.
--
I'm not belgian but I play one on TV.
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