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Article View: comp.soft-sys.khoros
Article #985

Re: Edit Image

#985
From: Peter Averkamp
Date: Fri, 20 Nov 1992 10:49
35 lines
2014 bytes
> I was having trouble with different aspects of Edit Image.
> 
> I wanted to know how to create drawings of various sizes(not the
> default size) and save them . Strangely it was'nt saving them.

To create drawings of various sizes, use vgconst to create a background
of whichever size you want to have and use it as input to editimage.
To save your annotation drawings as a viff image, you must combine
them with the background image by clicking on 'COMBINE ANNOTATIONS'
under the 'IMAGE UTILITIES'-menu.

> Also another problem I had was in the ROI operations in Edit image.
> If I use the option of choosing the ROI by using cross hairs it doesnt work.
> Sometimes the cross hairs disappear when you move around the image.

This seems to be a general problem with the algorithm for the roi bar 
colors. Currently the displayed roi bars simply have the inverted colours
of the image as it displays AT THE MOMENT OF ACTIVATING THE ROI. This
means that depending on your screen configuration, they might not at all
have meaningful colours when you enter the image with the mouse. You
can change this behaviour by hacking the routine 
$KHOROS_HOME/src/xvroutines/Lib/xvdisplay/roi.c around line 344.

(Hey Mark, do you read this? Sounds like the first drawing of the bars 
should be changed to occur on enter_notify of the raster image, right?)

Hope this helps,

\Peter


Peter Averkamp,                      | email:
Physics Department E20               | petav@e20.physik.tu-muenchen.de
Techn. Univ. of Munich               | Phone: ++49 (89) 3209-2408 and -2814
D-8046 Garching, Germany             | Fax:   ++49 (89) 3209-2338
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From: Peter.Averkamp@e20.physik.tu-muenchen.de (Peter Averkamp)
Newsgroups: comp.soft-sys.khoros
Subject: Re: Edit Image
Message-ID: <41751@pprg.eece.unm.edu.pprg.unm.edu>
Date: 20 Nov 92 10:49:16 GMT
Sender: news@pprg.unm.edu
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