--- a/src/algorithms/invert.h Mon Mar 19 11:04:18 2018 +0200 +++ b/src/algorithms/invert.h Mon Mar 19 12:24:59 2018 +0200 @@ -22,3 +22,4 @@ bool isflat(class Model* model, Axis* axis); Matrix flipmatrix(Axis axis); void invert(LDObject* obj, class DocumentManager* context); +void invertPolygon(LDPolygon& polygon);