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Re: Polygon Clipping Algo in IDL [message #46727 is a reply to message #46722]

Tue, 13 December 2005 08:32

JD Smith
Messages: 850
Registered: December 1999

Senior Member

On Tue, 13 Dec 2005 14:38:42 +1300, Mark Hadfield wrote:

> raval.chintan@gmail.com wrote:
>> Dear All,
>>
>> Does any one has written code for the polygon clipping ( Cohen
>> Sutherland or Liang Baskey ) in IDL? or is there any direct function
>> available in IDL?
>>
>> Regards
>> Chintan
>>
> Attached, based on code from JD Smith. These are part of my Motley library
> and may well require other routines in same. See

Hey Mark... remind me what your version did different from mine? I recall
spending weeks trying to vectorize this algorithm, only to give up and
write it as a DLM. It's fairly slow in IDL. Lately I've been exploring
the clipping library GPC, linking it as a DLM.

JD

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[Message index]

		Re: Polygon Clipping Algo in IDL By: JD Smith on Wed, 14 December 2005 11:01
		Re: Polygon Clipping Algo in IDL By: Mark Hadfield on Tue, 13 December 2005 15:02
		Re: Polygon Clipping Algo in IDL By: JD Smith on Tue, 13 December 2005 08:32
		Re: Polygon Clipping Algo in IDL By: Mark Hadfield on Mon, 12 December 2005 17:38

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