Contour Maps Links

Contouring
       http://www.uncert.com/uncert/contour/contour.html
                Comment: Chapter UNCERT. UNCERT is UNIX program. Code is free.
      

Read / Write Graphic File Source Code
       http://www.smalleranimals.com/jpegfile.htm
                Comment: BMP, JPEG.

Africa CIA GIF maps
       http://www.sas.upenn.edu/African_Studies/CIA_Maps/menu_CIA.html
                Comment: free maps.

Comp.Graphics.Algorithms Frequently Asked Questions
       http://www.exaflop.org/docs/cgafaq/index.html
                Comment: Computations: Points, Segments, Circles; Polygon Computations; Image/Pixel Computations; Curve Computations;
3D computations; Geometric Structures and Mathematics.