# @param groupName - a name of group to store created boundary elements in,
# "" means not to create the group
# @param meshName - a name of new mesh to store created boundary elements in,
# "" means not to create the new mesh
# @param groupName - a name of group to store created boundary elements in,
# "" means not to create the group
# @param meshName - a name of new mesh to store created boundary elements in,
# "" means not to create the new mesh