Slice intersections implementation

rprueckl · July 23, 2019, 12:32pm

Hi,

I’m looking for some help in understanding an implementation detail: I am unable to find the implementation of the slice intersection lines that are displayed in the slice viewers when they are activated via the menu. How are they rendered and how are the colors and positions set/updated?

Looking for forward for some insight.
Thanks
Robert

pieper · July 23, 2019, 1:57pm

Hi Robert -

It’s a somewhat complex topic, but you could start here:

github.com

Slicer/Slicer/blob/master/Libs/MRML/DisplayableManager/vtkMRMLSliceIntersectionWidget.cxx

/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkMRMLSliceIntersectionWidget.cxx

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
#include "vtkMRMLSliceIntersectionWidget.h"

#include "vtkMRMLAbstractSliceViewDisplayableManager.h"
#include "vtkMRMLApplicationLogic.h"
#include "vtkMRMLCrosshairDisplayableManager.h"
#include "vtkMRMLCrosshairNode.h"

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lassoan · July 23, 2019, 6:41pm

@rprueckl What would you like to do?

rprueckl · July 24, 2019, 7:27am

Thanks for the answer - i found what I was looking for - also in the file

https://github.com/Slicer/Slicer/blob/master/Libs/MRML/DisplayableManager/vtkMRMLModelSliceDisplayableManager.cxx

This concrete question was merely out of interest, but in general we are currently starting the process of building a customized application on top of the slicer libraries. Therefore, I was investigating different parts of the code. Currently, I make myself familiar with slicelets and the custom application template. It could easily be that you will see me more often in this forum

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Slice intersections implementation

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