Table of Contents
Objects superimposing consists in placing several objects in the same window. For example, you can superimpose hemispheres meshes or regions of interest with the matching anatomy (cf. examples below). So there is no specific menu to do that but you can change objects color to have a better display. For example, you can modify transparency, or lights on a mesh.
Be careful, superimposed objects must be in coherent referentials in order to get informative display. This means that if superimposed objects don't come from the same object (like hemispheres meshes that comes from a T1 MRI) or if they are non equivalent volumes (different subject, modality, point of view, voxels resolution...), you'll probably have to load trnasformations between referentials in order to put all objects in the same coordinates system.
In next example, 3 objects are loaded in Anatomist :
Object1 (O1) : anatomy
Object2 (O2) : regions of interest graph drawn from the anatomy. So these 2 objects are in the same referential.
Object3 (O3) : nomenclature to associate colors to regions of interest according to their name. This object doesn't have to be put in a window. Link between names in the nomenclature and in regions of interest is done automatically by Anatomist.
These 2 objects are in the same coordinates system, so they will be placed in the same referential, that is to say they will have the same color circle (red by default).
In next example, 3 objects are loaded in Anatomist :
Object1 (O1) : head mesh, object obtained from a T1 MRI with BrainVISA anatomical pipeline. Opacity is decreased in the example below to enable visualization of the other objects.
Object2 (O2) : right hemisphere mesh, object obtained from the T1 MRI with BrainVISA anatomical pipeline.
Object3 (O3) : left hemisphere mesh, maillage de l'hemisphère gauche, object obtained from the T1 MRI with BrainVISA anatomical pipeline.
