diff -r 4bec0525ef1b -r 93ec4d630346 src/linetypes/conditionaledge.h
--- a/src/linetypes/conditionaledge.h	Thu Mar 19 21:06:06 2020 +0200
+++ b/src/linetypes/conditionaledge.h	Wed Mar 25 16:07:20 2020 +0200
@@ -6,23 +6,9 @@
 	class ConditionalEdge;
 }
 
-class ldraw::ConditionalEdge : public Edge
+class ldraw::ConditionalEdge : public PolygonObject<4>
 {
 public:
-	ConditionalEdge() = default;
-	ConditionalEdge(
-		const glm::vec3& point_1,
-		const glm::vec3& point_2,
-		const glm::vec3& controlPoint_1,
-		const glm::vec3& controlPoint_2,
-		const Color colorIndex = ldraw::edgeColor);
-	ConditionalEdge(const std::array<glm::vec3, 4>& vertices, const Color color);
-	QVariant getProperty(Property property) const override;
+	using PolygonObject<4>::PolygonObject;
 	QString textRepresentation() const override;
-	int numPoints() const override;
-	const glm::vec3& getPoint(int index) const override;
-	glm::vec3 controlPoint_1 = {};
-	glm::vec3 controlPoint_2 = {};
-protected:
-	void setProperty(SetPropertyResult* result, const PropertyKeyValue& pair) override;
 };