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Re: Area intersection of two trapezoids with given coordinates [message #56857 is a reply to message #56787]

Sun, 18 November 2007 19:22

Vince Hradil
Messages: 574
Registered: December 1999

Senior Member

Can't this be solved analytically using trigonometry? If you want to
do it numerically you could just make two masks using WHERE() then do
AND to the get the intersection.

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

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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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