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Re: Area intersection of two trapezoids with given coordinates [message #56954 is a reply to message #56842]

Tue, 27 November 2007 09:21

mrosimmel
Messages: 2
Registered: November 2007

Junior Member

On Nov 20, 6:22 am, Bringfried Stecklum <steck...@tls-tautenburg.de>
wrote:
> mrosim...@gmail.com wrote:
>> Hello all,
>
>> I was wondering if there is a function in IDL that I can find the
>> intersection area of two trapezoids with given corner coordinates.
>> Briefly I have two trapezoids where the first one has corners of
>> (x1,y1), (x2,y2), (x3,y3), (x4,y4) and the second one has corners of
>> (a1,b1), (a2,b2), (a3,b3), (a4,b4)...I know ARCGIS has such functions
>> (like union/intersection).. If not could anyone have an idea how can I
>> do it in IDL?
>> Thanks all,
>
>> Mario
>
> Dear Mario,
>
> by accident I came across this page
>
> http://www.mporzio.astro.it/~licausi/IDL_Library/lib_index.h tml
>
> which seems to offer what you are looking for (OVERLAP.PRO).
>
> regards,
>
> Bringfried Stecklum

Hi Bringfried,

Thank you very much for the web site.
I have been trying to write that script myself for almost two weeks.
The overlap.pro does exactly what I wanted with much better precision
than my own script.
Once again thanks everybody for your help.
Regards,

Mario

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[Message index]

		Area intersection of two trapezoids with given coordinates By: mrosimmel on Fri, 16 November 2007 18:44
		Re: Area intersection of two trapezoids with given coordinates By: Bringfried Stecklum on Tue, 20 November 2007 03:22
		Re: Area intersection of two trapezoids with given coordinates By: mrosimmel on Tue, 27 November 2007 09:21
		Re: Area intersection of two trapezoids with given coordinates By: David Fanning on Sun, 18 November 2007 19:31
		Re: Area intersection of two trapezoids with given coordinates By: David Fanning on Sun, 18 November 2007 19:27
		Re: Area intersection of two trapezoids with given coordinates By: Vince Hradil on Sun, 18 November 2007 19:22

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