22 std::unique_ptr<LoadStl> reader =
nullptr;
23 if (LoadBinaryStl::isBinarySTL(filename)) {
24 reader = std::make_unique<LoadBinaryStl>(filename, scaleType);
25 }
else if (LoadAsciiStl::isAsciiSTL(filename)) {
26 reader = std::make_unique<LoadAsciiStl>(filename, scaleType);