Hey Ingmar,
You should be able to set the options “Draw as outline” or “Draw as transparent
overlay” in the Preference Page of the MultiLabelSegmentation.
However, it is working slightly different as in the (old) Segmentation plugin:
- the first option draws a colored outline but leaves the segmentation
face solid.
- the second options does not draw a colored outline but shows the
segmentation face with a certain transparency (transparency / opacity can be
changed via the context menu of the selected segmentation in the label widget
of the MultiLabelSegmentation-plugin)
Also: It may be, that the preset is set to “draw as transparent overlay” but on
initial creation the segmentation is drawn as outline (with a solid face).
Changes made in the preferences page are only applied if options have changed.
So you might need to set the option to “draw as outline” apply with ok and then
set back to “draw as transparent overlay” and apply with ok.
We have to make newly created segmentations respect the current preference of
the preference page!
Leaving the face solid with a colored outline (in the first case) is different
to the (old) behavior, since we did not finally decide how to represent an
active label with multiple (probably visible) non-active labels on the same
layer or on different layers (feel free to weigh in at
https://phabricator.mitk.org/T22328).
The section which you are looking for should be in the
“QmitkMultiLabelSegmentationView.cpp” – here the preferences are read and the
opacity is set straight to 1.0f or 0.3f (see line 940). This sets the opacity
of the segmentation node which can be changed via the context menu, as stated
above).
But: Ignoring the solid face of an (old) segmentation and only drawing the
colored outline was done in the “ImageVtkMapper2D”: see line 412 – 442: In the
outline case the mapper gets its input data from the outline poly data, in the
overlay case the mapper gets the previously created plane as input connection.
This could also be done in the “mitkLabelSetImageVtkMapper2D” but as stated
above, we did not decide on how to display non-active labels on the same layer
and labels on a different layer.
Best
Amir
From: Ingmar Wegner [mailto:iweg...@gmx.de]
Sent: Monday, 3 April, 2017 18:08
To: Mitk Users
Subject: [mitk-users] MultiLabelSegmentation plugin: don't show transparent
overlay of
Hi MITK-Developers!
Many thanks from our side for the new 2016.11 release as well!
After switching to the new release we are now also using the new
MultiLabelSegmentation plugin.
The plugin differs a bit in features that were available in the (old)
Segmentaton plugin tough. There you can toggle via preferences the
visualization of the segmented region (usually shown in red);
Options are "Draw as outline" or "Draw as transparent overlay".
For correcting a segmentation this was a nice feature but the also present
preferences in MultiLabelSegmentation plugin don't work.
So I looked into the mapper for the mitkLabelSetImageVtkMapper2D.
I could find the section where the preference "labelset.contour.active" and
played a bit this it.
But I couldn't find the section where the transparent overlay is drawn.
-> Could someone possibly point me to that section?
Then I can check for a fix of the preferences so they act the same way as for
the (old) Segmentation plugin.
Many thanks again,
Ingmar
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