General description

The “VolumeFromTetrahedrons” component computes the volume of a given volumetric mesh (tetrahedrons or/and hexahedrons).

How to use the component

To learn how to create a SOFA scene, please refer to the tutorial provided by the SOFA Modeler or this documentation.

This component needs a volumetric topology in its context:

finger = rootNode.createChild('finger')
 
# Create the popology
finger.createObject('MeshVTKLoader', name='loader', filename=path+'finger.vtk')
finger.createObject('TetrahedronSetTopologyContainer', src='@loader', name='container')
finger.createObject('TetrahedronSetTopologyModifier')
finger.createObject('TetrahedronSetTopologyAlgorithms', template='Vec3d')
finger.createObject('TetrahedronSetGeometryAlgorithms', template='Vec3d', drawTetrahedra="1")

finger.createObject('VolumeFromTetrahedrons')

An example is provided in the “examples” directory of the plugin.

Data field

Input data

positions : If not set by user, find the context mechanical.

tetras : If not set by user, find the context topology.

hexas : If not set by user, find the context topology.

Output data

volume : Output volume