diff --git a/src/LineTool.cpp b/src/LineTool.cpp
index 1249c25..41437b0 100644
--- a/src/LineTool.cpp
+++ b/src/LineTool.cpp
@@ -796,8 +796,6 @@ void LineTool::paint2D(QPainter& painter, const QMatrix4x4& modelView, const QMa
             while (angleDiff > M_PI) angleDiff -= 2 * M_PI;
             lineAngle = refAngle + angleDiff;
 
-            gp_Dir lineDirGp(lineVec.x(), lineVec.y(), lineVec.z());
-            gp_Dir2d lineDir2d(lineDirGp.Dot(plane.XDirection()), lineDirGp.Dot(plane.YDirection()));
             gp_Dir2d perpDir2d(-lineDir2d.Y(), lineDir2d.X());
             gp_Dir perpDir3d = ElCLib::To3d(plane, perpDir2d);
             QVector3D perpVec(perpDir3d.X(), perpDir3d.Y(), perpDir3d.Z());