message: Try to change vertex implementation.
diff: @@ -98,7 +98,8 @@ namespace RINGMesh {
  virtual const vecn< DIMENSION >& vertex( index_t v_id ) const override \
  { \
  ringmesh_assert( v_id < nb_vertices() ); \
  - return mesh_->vertices.point( v_id ); \
  + double* vertex_ptr = mesh_->vertices.point_ptr( v_id ); \
  + return *( vecn< DIMENSION >* )( vertex_ptr ); \
  } \
  virtual index_t nb_vertices() const override \
  { \
  