From 2dcbba9c33ea0595599f5989fb6765d90e910bf0 Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Fri, 24 Feb 2017 09:42:54 +0100
Subject: [PATCH] call BRepLib::BuildCurves3d after mapping a 2d curve onto a
 surface to correctly create a 3d curve

---
 src/Mod/Part/App/Geom2d/Curve2dPyImp.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/Mod/Part/App/Geom2d/Curve2dPyImp.cpp b/src/Mod/Part/App/Geom2d/Curve2dPyImp.cpp
index 8b690ce0b..0ddb3215b 100644
--- a/src/Mod/Part/App/Geom2d/Curve2dPyImp.cpp
+++ b/src/Mod/Part/App/Geom2d/Curve2dPyImp.cpp
@@ -48,6 +48,7 @@
 # include <BRepBuilderAPI_MakeEdge2d.hxx>
 # include <BRepBuilderAPI_MakeEdge.hxx>
 # include <BRepAdaptor_Surface.hxx>
+# include <BRepLib.hxx>
 # include <TopoDS.hxx>
 #endif
 
@@ -157,6 +158,7 @@ PyObject* Curve2dPy::toShape(PyObject *args)
 
             BRepBuilderAPI_MakeEdge mkBuilder(curv, surf);
             TopoDS_Shape edge =  mkBuilder.Shape();
+            BRepLib::BuildCurves3d(edge);
             return Py::new_reference_to(shape2pyshape(edge));
         }
         catch (Standard_Failure) {
@@ -175,6 +177,7 @@ PyObject* Curve2dPy::toShape(PyObject *args)
 
             BRepBuilderAPI_MakeEdge mkBuilder(curv, surf, u1, u2);
             TopoDS_Shape edge =  mkBuilder.Shape();
+            BRepLib::BuildCurves3d(edge);
             return Py::new_reference_to(shape2pyshape(edge));
         }
         catch (Standard_Failure) {
@@ -193,6 +196,7 @@ PyObject* Curve2dPy::toShape(PyObject *args)
             BRepAdaptor_Surface adapt(face);
             BRepBuilderAPI_MakeEdge mkBuilder(curv, adapt.Surface().Surface());
             TopoDS_Shape edge =  mkBuilder.Shape();
+            BRepLib::BuildCurves3d(edge);
             return Py::new_reference_to(shape2pyshape(edge));
         }
         catch (Standard_Failure) {
@@ -211,6 +215,7 @@ PyObject* Curve2dPy::toShape(PyObject *args)
             BRepAdaptor_Surface adapt(face);
             BRepBuilderAPI_MakeEdge mkBuilder(curv, adapt.Surface().Surface(), u1, u2);
             TopoDS_Shape edge =  mkBuilder.Shape();
+            BRepLib::BuildCurves3d(edge);
             return Py::new_reference_to(shape2pyshape(edge));
         }
         catch (Standard_Failure) {