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Re: Moving an ROI [message #28378 is a reply to message #28325]

Thu, 06 December 2001 08:32

Pavel A. Romashkin
Messages: 531
Registered: November 2000

Senior Member

Andre Kyme wrote:
>
> The problem I see with this is that if we are over
> the boundary, the ROI stops at the point(s) of contact. I eventually want the total
> counts inside the ROI, which means that I need to CLOSE it off first, before doing
> a polyfillv. If I used this last method as is, the ROI would be truncated by simply
> drawing a line from one point of contact to the other - what I really want is the
> boundary to follow the edge of the draw widget where it has crossed the draw
> boundary.

I guess I am not quite sure we are talking the same ROI. Is it the
IDLgrROI, or IDLanROI for that matter? I think that their ContainsPoits
method will return the same results whether the trimmed edge of the ROI
consists of two or thousand points. So it looks to me like drawing a
line from one point of contact to the other is effectively the same as
following the edge of the draw widget where it has crossed the draw boundary.

Cheers,
Pavel

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[Message index]

		Moving an ROI By: Andre Kyme on Tue, 04 December 2001 13:35
		Re: Moving an ROI By: Pavel A. Romashkin on Thu, 06 December 2001 08:32
		Re: Moving an ROI By: Andre Kyme on Thu, 06 December 2001 17:00
		Re: Moving an ROI By: Andre Kyme on Wed, 05 December 2001 13:55
		Re: Moving an ROI By: Pavel A. Romashkin on Wed, 05 December 2001 08:55

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