diff -r a5111f4e6412 -r 918b6c0f8b5b src/linetypes/triangle.h
--- a/src/linetypes/triangle.h	Fri Dec 13 15:55:56 2019 +0200
+++ b/src/linetypes/triangle.h	Fri Dec 13 21:35:59 2019 +0200
@@ -10,15 +10,15 @@
 public:
 	Triangle() = default;
 	Triangle(
-		const Vertex &point_1,
-		const Vertex &point_2,
-		const Vertex &point_3,
+		const Point3D &point_1,
+		const Point3D &point_2,
+		const Point3D &point_3,
 		Color colorIndex = colors::main);
-	Triangle(const QVector<Vertex>& vertices, const Color color);
+	Triangle(const QVector<Point3D>& vertices, const Color color);
 	QVariant getProperty(Property id) const override;
 	SetPropertyResult setProperty(Property id, const QVariant& value) override;
 	QString textRepresentation() const override;
 private:
-	Vertex points[3] = {{}};
+	Point3D points[3] = {{}};
 };