/*! \example Surface_mesh_approximation/vsa_approximation_2_example.cpp \example Surface_mesh_approximation/vsa_approximation_example.cpp \example Surface_mesh_approximation/vsa_class_interface_example.cpp \example Surface_mesh_approximation/vsa_isotropic_metric_example.cpp \example Surface_mesh_approximation/vsa_segmentation_example.cpp \example Surface_mesh_approximation/vsa_simple_approximation_example.cpp */