--- a/src/tools/drawtool.cpp Sat Mar 05 13:32:58 2022 +0200 +++ b/src/tools/drawtool.cpp Sat Mar 05 13:38:22 2022 +0200 @@ -116,7 +116,14 @@ { painter->setBrush(this->isconcave ? ::badPolygonBrush : ::polygonBrush); painter->setPen(::polygonPen); - canvas->drawWorldPolygon(painter, this->previewPolygon); + if (this->previewPolygon.size() > 2) + { + canvas->drawWorldPolygon(painter, this->previewPolygon); + } + else + { + canvas->drawWorldPolyline(painter, this->previewPolygon); + } painter->setBrush(::pointBrush); painter->setPen(::pointPen); for (const glm::vec3& point : this->polygon)