--- a/src/linetypes/quadrilateral.cpp Fri Sep 17 22:43:22 2021 +0300 +++ b/src/linetypes/quadrilateral.cpp Tue Sep 21 16:00:15 2021 +0300 @@ -29,3 +29,8 @@ // -> 2 1 0 3 std::swap(this->points[0], this->points[2]); } + +ldraw::Object::Type ldraw::Quadrilateral::typeIdentifier() const +{ + return Type::Quadrilateral; +}