str_vertex         79 data/sphere/level_set_test.cpp const Vertex convert_to_vertex(const std::string& str_vertex);
str_vertex        120 data/sphere/level_set_test.cpp const Vertex convert_to_vertex(const std::string& str_vertex){
str_vertex        121 data/sphere/level_set_test.cpp   std::istringstream iss {str_vertex};