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Re: 3D array from surfaces? [message #60405 is a reply to message #60395]

Tue, 13 May 2008 10:00

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Mike writes:

> Anybody know a simple/sensible way to create a 3D array from a
> collection of surfaces?
>
> I have a series of surfaces defined by vertexes in STL files. I need
> to make a 3D bit mask with the value of the each element depending on
> if the element is inside or outside of each surface - the opposite of
> the segmentation process that generated the STL files. This data
> comes from external software that uses these bit masks as an
> intermediate step, but of course cannot save them since it is obvious
> that no one would ever need that intermediate data ;-).
>
> As usual, I'd rather not reinvent the wheel if someone has already put
> together reasonably round one...

Maybe you can get some inspiration from this article:

http://www.dfanning.com/graphics_tips/mesh.html

Cheers,

David

--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming (www.dfanning.com)
Sepore ma de ni thui. ("Perhaps thou speakest truth.")

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[Message index]

		Re: 3D array from surfaces? By: David Fanning on Wed, 14 May 2008 07:06
		Re: 3D array from surfaces? By: Mike[2] on Wed, 14 May 2008 07:01
		Re: 3D array from surfaces? By: Mike[2] on Wed, 14 May 2008 06:43
		Re: 3D array from surfaces? By: Karl[1] on Tue, 13 May 2008 19:53
		Re: 3D array from surfaces? By: Rick Towler on Tue, 13 May 2008 16:52
		Re: 3D array from surfaces? By: David Fanning on Tue, 13 May 2008 14:54
		Re: 3D array from surfaces? By: Mike[2] on Tue, 13 May 2008 14:47
		Re: 3D array from surfaces? By: David Fanning on Tue, 13 May 2008 10:00

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