VolumeTracker and SurfaceTracker plugins

These two plugins monitor lattice and update volume and surface of the cells once pixel copy occurs. In most cases users will not call those plugins directly. They will be called automatically when either Volume (calls VolumeTracker) or Surface (calls SurfaceTracker) or CenterOfMass (calls VolumeTracker) plugins are requested. However one should be aware that in some situations, for example when doing foam coarsening, where neither Volume nor Surface plugins are called, one may still want to track changes in surface or volume of cells. In such situations we explicitly invoke VolumeTracker or Surface Tracker plugin with the following syntax:

<Plugin Name=”VolumeTracker”/>


<Plugin Name=”SurfaceTracker”/>