GIS algorithms

[Stephen Lime]

Greetings: I'm wondering if anyone knows of sources for common
GIS algorithms (especially buffering)? C code would be the best but
text algorithms would work too. I can always swipe stuff from the 
latest version of Grass I suppose. Lemme know if anyone has come
across other sources.

Thanks- Steve

Stephen Lime
Internet Applications Analyst

Minnesota DNR
500 Lafayette Road
St. Paul, MN 55155
651-297-2937