diff -r 2bdc3ac5e77c -r 55a55a9ec2c2 src/objecttypes/conditionaledge.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/objecttypes/conditionaledge.h	Sun Sep 22 11:51:41 2019 +0300
@@ -0,0 +1,26 @@
+#pragma once
+#include "edge.h"
+
+namespace modelobjects
+{
+	class ConditionalEdge;
+}
+
+class modelobjects::ConditionalEdge : public Edge
+{
+public:
+	ConditionalEdge() = default;
+	ConditionalEdge(
+		const Vertex& point_1,
+		const Vertex& point_2,
+		const Vertex& controlPoint_1,
+		const Vertex& controlPoint_2,
+		const Color color_index = colors::edge);
+	QVariant getProperty(Property property) const override;
+	SetPropertyResult setProperty(
+		Property property,
+		const QVariant& value) override;
+private:
+	Vertex controlPoint_1 = {};
+	Vertex controlPoint_2 = {};
+};