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| Re: Missing NOFILL Keword in CW_DEFROI [message #30434 is a reply to message #30432] |
Wed, 24 April 2002 03:52  |
Ted Cary
Messages: 53
Registered: October 2001
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Hello,
See my answer a few posts back to a David Higgins post. I have a modified
version of CW_DEFROI that will optionally return the ROI polygon vertices
instead of the interior subscripts. I can send it to you, too. Another
option is to contour the filled region using something like the BOUNDARY
routine I posted in answer to David Fanning's "chain-link algorithm"
question of last week, or you can WHERE a distance map of a region's mask to
find and plot the boundary points out of order. But it is best to change
the ROI definition code.
The truth is that CW_DEFROI is a little clunky, modified or not.
TC
"Emmler, Oliver" <oemmler@ix.urz.uni-heidelberg.de> wrote in message
news:aa641n$7db$1@news.urz.uni-heidelberg.de...
> I am using the CW_DEFROI function within a drawwidget. Unfortunately
theres
> no /NOFILL keyword like there's in the DEFROI function.
>
> Does anyone have a solution to plot the ROI NOT filled.
>
> Maybe:
> - First restore the picture (solved)
> - and replot the outer points of the ROI (need solution)
>
> Regards Oliver
>
> --
> Oliver Emmler
> University of Heidelberg
> Departement of Radiology
> Phone: +49-6221-7963059 E-Mail: Oliver.Emmler@med.uni-heidelberg.de
>
>
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