Understanding Gdp

[davedjohnson]

Ok, I see that. I think I saw a function that checks three points to see if they are collinear and returns an int.

[edward]

I'd be interested in the qhull stuff, been looking out for it for a while. Any chance of a link or better yet the code... 

19703[/snapback]

Ok, download the qhull 2003.1 source from here:

http://www.qhull.org/download/

Replace io.c from the one found in the attached archive. Compile. Thereafter, using qhull's -o option will output .ply files which one can read into Houdini.

qhull_2003.1_ply.tar.gz

[sibarrick]

You missed the thread I posted about chull. The only reason why I used the GPD is because I don't have MSVC at home and thus have been compiling using MinGW. GPD is the public domain version of the $GEO library. So basically, it's a cinch to integrate chull into a SOP if you want to.

Hi Edward,

Where does one find this public domain geo library? I want to write a commandline program that reads geo files, so i can run it using the unix sop, I only really need triangles so I could write my own but this sounds like it might be useful.

[edward]

Unfortunately, GPD is no longer publicly available due to disuse over the years. Although conceivably, someone could make it opensource and have it community supported. It's not a small undertaking though.

EDIT: It's now available here: http://sourceforge.net/projects/houdinigpdlibra/