+ /*!
+ * To make groups of volumes of different domains when mesh is generated from skin.
+ * Default is to make groups.
+ * This option works only (1) for the mesh w/o shape and (2) if GetToMeshHoles() == true
+ */
+ void SetToMakeGroupsOfDomains(bool toMakeGroups);
+ bool GetToMakeGroupsOfDomains() const;