Dear Mr. Horton:

I am investigating options for creating 2D contour plots for the freely

distributable Matplotlib package (http://matplotlib.sourceforge.net/).

The Matplotlib license requires all the software to be free for

noncommercial and commercial distribution.

I had the idea to try to implement marching squares for this package. We

know the marching cubes algorithm is patented, but what about the 2D

marching squares? Can my implementation be used in this freely

distributed package without obtaining a license grant?

Thanks,

Curtis

* * * * * * * * * * * * * * * * * * * * * * * * * * * *

* Curtis S. Cooper, Graduate Research Assistant *

* Lunar and Planetary Laboratory, University of Arizona *

* http://www.lpl.arizona.edu/~curtis/ *

* Kuiper Space Sciences, Rm. 318 *

* 1629 E. University Blvd., *

* Tucson, AZ 85721 * * * * * * * * * * * * * * *

* Wk: (520) 621-1471 *

* * * * * * * * * * * *