GVRTemporalDifference¶

MacroModule¶

genre	`VolRendExtensions`
author	`MeVis Medical Solutions AG`
package	`MeVisLab/Standard`
definition	GVRTemporalDifference.def
keywords	`info`

Purpose¶

The module GVRTemporalDifference renders the difference between two temporal positions in a GVR octree.

The difference is calculated by re-using a different time point of the main volume as a secondary volume and by calculating:

abs(timepoint1.Value - timepoint2.Value)

The difference value is then classified using the standard LUT for the main volume.

Usage¶

Add the outGroup to an Open Inventor scene in front of a SoGVRVolumeRenderer.

Connect a GVR volume (which should contain temporal positions) to the inVolume input and to the volume input of the SoGVRVolumeRenderer.

It is important that you are using a GVR volume and not an ML image, since this allows better caching of the textures of the temporal positions in the main volume.

Windows¶

Default Panel¶

../../../Modules/Macros/GVR/mhelp/Images/Screenshots/GVRTemporalDifference._default.png

Input Fields¶

inVolume¶

name: inVolume, type: MLBase¶

Output Fields¶

outGroup¶

name: outGroup, type: SoNode¶

Parameter Fields¶

Visible Fields¶

Main Volume Time Point¶

name: mainVolumeTimePoint, type: Integer, default: 0, minimum: 0¶: Sets the time point of the main volume image.

Secondary Volume Time Point¶

name: secondaryVolumeTimePoint, type: Integer, default: 0, minimum: 0¶: Sets the time point of the secondary volume image.