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Re: data inside a circle [message #44445 is a reply to message #44357]

Mon, 13 June 2005 09:20

Michael Wallace
Messages: 409
Registered: December 2003

Senior Member

> Thank you. I was wondering if there is a function or procedure in IDL
> that will find the coordinates of the bounding box for a circle and/or
> ellipse.

If the origin is at [x, y] and you have a radius r, the bounding box is
defined by [x - r, y - r] for the lower left-hand corner and [x + r, y +
r] for the upper-right hand corner. If you have an ellipse, just
replace r with the radius in the x direction and radius in the y
direction. This assumes that you don't have any ellipses that are tilted.

-Mike

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[Message index]

		data inside a circle By: angela on Fri, 10 June 2005 14:01
		Re: data inside a circle By: Michael Wallace on Mon, 13 June 2005 17:10
		Re: data inside a circle By: btt on Mon, 20 June 2005 06:18
		Re: data inside a circle By: Michael Wallace on Mon, 13 June 2005 09:20
		Re: data inside a circle By: btt on Tue, 21 June 2005 13:09
		Re: data inside a circle By: James Kuyper on Tue, 21 June 2005 05:01

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