diff -r a5111f4e6412 -r 918b6c0f8b5b src/linetypes/conditionaledge.cpp
--- a/src/linetypes/conditionaledge.cpp	Fri Dec 13 15:55:56 2019 +0200
+++ b/src/linetypes/conditionaledge.cpp	Fri Dec 13 21:35:59 2019 +0200
@@ -1,10 +1,10 @@
 #include "conditionaledge.h"
 
 linetypes::ConditionalEdge::ConditionalEdge(
-	const Vertex& point_1,
-	const Vertex& point_2,
-	const Vertex& controlPoint_1,
-	const Vertex& controlPoint_2,
+	const Point3D& point_1,
+	const Point3D& point_2,
+	const Point3D& controlPoint_1,
+	const Point3D& controlPoint_2,
 	const Color color_index) :
 	Edge{point_1, point_2, color_index},
 	controlPoint_1{controlPoint_1},
@@ -12,7 +12,7 @@
 {
 }
 
-linetypes::ConditionalEdge::ConditionalEdge(const QVector<Vertex>& vertices, const Color color) :
+linetypes::ConditionalEdge::ConditionalEdge(const QVector<Point3D>& vertices, const Color color) :
 	Edge{vertices[0], vertices[1], color},
 	controlPoint_1{vertices[2]},
 	controlPoint_2{vertices[3]}
@@ -40,9 +40,9 @@
 	switch (property)
 	{
 	case Property::ControlPoint1:
-		controlPoint_1 = value.value<Vertex>();
+		controlPoint_1 = value.value<Point3D>();
 	case Property::ControlPoint2:
-		controlPoint_2 = value.value<Vertex>();
+		controlPoint_2 = value.value<Point3D>();
 	default:
 		return Edge::setProperty(property, value);
 	}