• check_distance_field() : test_distance_field.cpp
• dist_sq() : test_distance_field.cpp
• main() : test_distance_field.cpp , test_voxel_grid.cpp
• point1() : test_distance_field.cpp
• point2() : test_distance_field.cpp
• print() : test_distance_field.cpp
• TEST() : test_distance_field.cpp , test_voxel_grid.cpp