Curtis: attached is a copy of the license agreement required for use of the Marching Cubes/VTK algorithms and related software. Once this agreement has been executed and GE has received the requisite payments, your license will be automatic. Thanks.

Carl B. Horton

GE Healthcare

Chief IP CounselP: 262 513-4022

F: 414 918-1641

C: 262 385-7315

D: *320-4022

E: Carl.Horton@...155...

Marching Cubes License 2004-10-24.doc (54 KB)

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-----Original Message-----

From: Curtis Cooper [mailto:curtis@…152…]

Sent: Friday, October 01, 2004 2:42 PM

To: Horton, Carl (GE Healthcare)

Cc: Matplotlib Developers

Subject: Marching Squares Algorithm

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 *

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