Revert "0033551: Visualization - Add new transform persistence mode to force orthographic projection on object."

This reverts commit 0141024df5.
0033564: Data Exchange, STEP - Making default unit parameter
2025-08-09 13:22:24 +03:00 · 2024-01-15 15:15:41 +00:00 · 2024-01-12 17:24:16 +00:00 · 2024-01-12 17:23:55 +00:00 · 2024-01-05 18:36:54 +00:00 · 2023-12-26 08:38:03 +00:00
68 changed files with 254 additions and 275 deletions
--- a/src/GeomLib/GeomLib_IsPlanarSurface.cxx
+++ b/src/GeomLib/GeomLib_IsPlanarSurface.cxx
@@ -50,22 +50,27 @@ static Standard_Boolean Controle(const TColgp_Array1OfPnt& Poles,
    Standard_Real umin, umax, vmin, vmax;
    S->Bounds(umin, umax, vmin, vmax);
    S->D1((umin + umax) / 2, (vmin + vmax) / 2, P, DU, DV);
-    // On prend DX le plus proche possible de DU
-    gp_Dir du(DU);
-    Standard_Real Angle1 = du.Angle(DX);
-    Standard_Real Angle2 = du.Angle(DY);
-    if (Angle1 > M_PI / 2) Angle1 = M_PI - Angle1;
-    if (Angle2 > M_PI / 2) Angle2 = M_PI - Angle2;
-    if (Angle2 < Angle1) {
-      du = DY; DY = DX; DX = du;
-    }
-    if (DX.Angle(DU) > M_PI / 2) DX.Reverse();
-    if (DY.Angle(DV) > M_PI / 2) DY.Reverse();
+    
+    if (DU.SquareMagnitude() > gp::Resolution() &&
+        DV.SquareMagnitude() > gp::Resolution())
+    {
+      // On prend DX le plus proche possible de DU
+      gp_Dir du(DU);
+      Standard_Real Angle1 = du.Angle(DX);
+      Standard_Real Angle2 = du.Angle(DY);
+      if (Angle1 > M_PI / 2) Angle1 = M_PI - Angle1;
+      if (Angle2 > M_PI / 2) Angle2 = M_PI - Angle2;
+      if (Angle2 < Angle1) {
+        du = DY; DY = DX; DX = du;
+      }
+      if (DX.Angle(DU) > M_PI / 2) DX.Reverse();
+      if (DY.Angle(DV) > M_PI / 2) DY.Reverse();

-    gp_Ax3 axe(Bary, DX^DY, DX);
-    Plan.SetPosition(axe);
-    Plan.SetLocation(Bary);
-    IsPlan = Standard_True;
+      gp_Ax3 axe(Bary, DX^DY, DX);
+      Plan.SetPosition(axe);
+      Plan.SetLocation(Bary);
+      IsPlan = Standard_True;
+    }
  }
  return IsPlan;
 }
--- a/src/GeomToStep/GeomToStep_MakeAxis1Placement.hxx
+++ b/src/GeomToStep/GeomToStep_MakeAxis1Placement.hxx
@@ -20,10 +20,10 @@
 #include <Standard.hxx>
 #include <Standard_DefineAlloc.hxx>
 #include <Standard_Handle.hxx>
+#include <StepData_Factors.hxx>

 #include <GeomToStep_Root.hxx>

-class StepData_Factors;
 class StepGeom_Axis1Placement;
 class gp_Ax1;
 class gp_Ax2d;
@@ -43,16 +43,16 @@ public:

  
  Standard_EXPORT GeomToStep_MakeAxis1Placement(const gp_Ax1& A,
-                                                const StepData_Factors& theLocalFactors);
+                                                const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT GeomToStep_MakeAxis1Placement(const gp_Ax2d& A,
-                                                const StepData_Factors& theLocalFactors);
+                                                const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT GeomToStep_MakeAxis1Placement(const Handle(Geom_Axis1Placement)& A,
-                                                const StepData_Factors& theLocalFactors);
+                                                const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT GeomToStep_MakeAxis1Placement(const Handle(Geom2d_AxisPlacement)& A,
-                                                const StepData_Factors& theLocalFactors);
+                                                const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepGeom_Axis1Placement)& Value() const;

--- a/src/GeomToStep/GeomToStep_MakeAxis2Placement2d.hxx
+++ b/src/GeomToStep/GeomToStep_MakeAxis2Placement2d.hxx
@@ -23,7 +23,6 @@

 #include <GeomToStep_Root.hxx>

-class StepData_Factors;
 class StepGeom_Axis2Placement2d;
 class gp_Ax2;
 class gp_Ax22d;
@@ -41,10 +40,10 @@ public:

  
  Standard_EXPORT GeomToStep_MakeAxis2Placement2d(const gp_Ax2& A,
-                                                  const StepData_Factors& theLocalFactors);
+                                                  const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT GeomToStep_MakeAxis2Placement2d(const gp_Ax22d& A,
-                                                  const StepData_Factors& theLocalFactors);
+                                                  const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepGeom_Axis2Placement2d)& Value() const;

--- a/src/GeomToStep/GeomToStep_MakeAxis2Placement3d.hxx
+++ b/src/GeomToStep/GeomToStep_MakeAxis2Placement3d.hxx
@@ -23,7 +23,6 @@

 #include <GeomToStep_Root.hxx>
 #include <StepData_StepModel.hxx>
-class StepData_Factors;
 class StepGeom_Axis2Placement3d;
 class gp_Ax2;
 class gp_Ax3;
@@ -42,19 +41,19 @@ public:
  DEFINE_STANDARD_ALLOC

  
-  Standard_EXPORT GeomToStep_MakeAxis2Placement3d(const StepData_Factors& theLocalFactors);
+  Standard_EXPORT GeomToStep_MakeAxis2Placement3d(const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT GeomToStep_MakeAxis2Placement3d(const gp_Ax2& A,
-                                                  const StepData_Factors& theLocalFactors);
+                                                  const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT GeomToStep_MakeAxis2Placement3d(const gp_Ax3& A,
-                                                  const StepData_Factors& theLocalFactors);
+                                                  const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT GeomToStep_MakeAxis2Placement3d(const gp_Trsf& T,
-                                                  const StepData_Factors& theLocalFactors);
+                                                  const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT GeomToStep_MakeAxis2Placement3d(const Handle(Geom_Axis2Placement)& A,
-                                                  const StepData_Factors& theLocalFactors);
+                                                  const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepGeom_Axis2Placement3d)& Value() const;

--- a/src/GeomToStep/GeomToStep_MakeBSplineCurveWithKnots.hxx
+++ b/src/GeomToStep/GeomToStep_MakeBSplineCurveWithKnots.hxx
@@ -24,7 +24,6 @@
 #include <GeomToStep_Root.hxx>
 class Geom_BSplineCurve;
 class Geom2d_BSplineCurve;
-class StepData_Factors;
 class StepGeom_BSplineCurveWithKnots;


@@ -41,10 +40,10 @@ public:

  
  Standard_EXPORT GeomToStep_MakeBSplineCurveWithKnots(const Handle(Geom_BSplineCurve)& Bsplin,
-                                                       const StepData_Factors& theLocalFactors);
+                                                       const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT GeomToStep_MakeBSplineCurveWithKnots(const Handle(Geom2d_BSplineCurve)& Bsplin,
-                                                       const StepData_Factors& theLocalFactors);
+                                                       const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepGeom_BSplineCurveWithKnots)& Value() const;

--- a/src/GeomToStep/GeomToStep_MakeBSplineCurveWithKnotsAndRationalBSplineCurve.hxx
+++ b/src/GeomToStep/GeomToStep_MakeBSplineCurveWithKnotsAndRationalBSplineCurve.hxx
@@ -23,7 +23,6 @@

 #include <GeomToStep_Root.hxx>

-class StepData_Factors;
 class StepGeom_BSplineCurveWithKnotsAndRationalBSplineCurve;
 class Geom_BSplineCurve;
 class Geom2d_BSplineCurve;
@@ -42,10 +41,10 @@ public:

  
  Standard_EXPORT GeomToStep_MakeBSplineCurveWithKnotsAndRationalBSplineCurve(const Handle(Geom_BSplineCurve)& Bsplin,
-                                                                              const StepData_Factors& theLocalFactors);
+                                                                              const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT GeomToStep_MakeBSplineCurveWithKnotsAndRationalBSplineCurve(const Handle(Geom2d_BSplineCurve)& Bsplin,
-                                                                              const StepData_Factors& theLocalFactors);
+                                                                              const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepGeom_BSplineCurveWithKnotsAndRationalBSplineCurve)& Value() const;

--- a/src/GeomToStep/GeomToStep_MakeBSplineSurfaceWithKnots.hxx
+++ b/src/GeomToStep/GeomToStep_MakeBSplineSurfaceWithKnots.hxx
@@ -22,7 +22,6 @@
 #include <Standard_Handle.hxx>

 #include <GeomToStep_Root.hxx>
-class StepData_Factors;
 class StepGeom_BSplineSurfaceWithKnots;
 class Geom_BSplineSurface;

@@ -40,7 +39,7 @@ public:

  
  Standard_EXPORT GeomToStep_MakeBSplineSurfaceWithKnots(const Handle(Geom_BSplineSurface)& Bsplin,
-                                                         const StepData_Factors& theLocalFactors);
+                                                         const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepGeom_BSplineSurfaceWithKnots)& Value() const;

--- a/src/GeomToStep/GeomToStep_MakeBSplineSurfaceWithKnotsAndRationalBSplineSurface.hxx
+++ b/src/GeomToStep/GeomToStep_MakeBSplineSurfaceWithKnotsAndRationalBSplineSurface.hxx
@@ -23,7 +23,6 @@

 #include <GeomToStep_Root.hxx>

-class StepData_Factors;
 class StepGeom_BSplineSurfaceWithKnotsAndRationalBSplineSurface;
 class Geom_BSplineSurface;

@@ -41,7 +40,7 @@ public:

  
  Standard_EXPORT GeomToStep_MakeBSplineSurfaceWithKnotsAndRationalBSplineSurface(const Handle(Geom_BSplineSurface)& Bsplin,
-                                                                                  const StepData_Factors& theLocalFactors);
+                                                                                  const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepGeom_BSplineSurfaceWithKnotsAndRationalBSplineSurface)& Value() const;

--- a/src/GeomToStep/GeomToStep_MakeBoundedCurve.hxx
+++ b/src/GeomToStep/GeomToStep_MakeBoundedCurve.hxx
@@ -23,7 +23,6 @@

 #include <GeomToStep_Root.hxx>

-class StepData_Factors;
 class StepGeom_BoundedCurve;
 class Geom_BoundedCurve;
 class Geom2d_BoundedCurve;
@@ -42,10 +41,10 @@ public:

  
  Standard_EXPORT GeomToStep_MakeBoundedCurve(const Handle(Geom_BoundedCurve)& C,
-                                              const StepData_Factors& theLocalFactors);
+                                              const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT GeomToStep_MakeBoundedCurve(const Handle(Geom2d_BoundedCurve)& C,
-                                              const StepData_Factors& theLocalFactors);
+                                              const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepGeom_BoundedCurve)& Value() const;

--- a/src/GeomToStep/GeomToStep_MakeBoundedSurface.hxx
+++ b/src/GeomToStep/GeomToStep_MakeBoundedSurface.hxx
@@ -23,7 +23,6 @@

 #include <GeomToStep_Root.hxx>

-class StepData_Factors;
 class StepGeom_BoundedSurface;
 class Geom_BoundedSurface;

@@ -41,7 +40,7 @@ public:

  
  Standard_EXPORT GeomToStep_MakeBoundedSurface(const Handle(Geom_BoundedSurface)& C,
-                                                const StepData_Factors& theLocalFactors);
+                                                const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepGeom_BoundedSurface)& Value() const;

--- a/src/GeomToStep/GeomToStep_MakeCircle.hxx
+++ b/src/GeomToStep/GeomToStep_MakeCircle.hxx
@@ -23,7 +23,6 @@

 #include <GeomToStep_Root.hxx>

-class StepData_Factors;
 class StepGeom_Circle;
 class gp_Circ;
 class Geom_Circle;
@@ -42,13 +41,13 @@ public:

  
  Standard_EXPORT GeomToStep_MakeCircle(const gp_Circ& C,
-                                        const StepData_Factors& theLocalFactors);
+                                        const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT GeomToStep_MakeCircle(const Handle(Geom_Circle)& C,
-                                        const StepData_Factors& theLocalFactors);
+                                        const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT GeomToStep_MakeCircle(const Handle(Geom2d_Circle)& C,
-                                        const StepData_Factors& theLocalFactors);
+                                        const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepGeom_Circle)& Value() const;

--- a/src/GeomToStep/GeomToStep_MakeConic.hxx
+++ b/src/GeomToStep/GeomToStep_MakeConic.hxx
@@ -25,7 +25,6 @@
 class StepGeom_Conic;
 class Geom_Conic;
 class Geom2d_Conic;
-class StepData_Factors;


 //! This class implements the mapping between classes
@@ -40,10 +39,10 @@ public:

  
  Standard_EXPORT GeomToStep_MakeConic(const Handle(Geom_Conic)& C,
-                                       const StepData_Factors& theLocalFactors);
+                                       const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT GeomToStep_MakeConic(const Handle(Geom2d_Conic)& C,
-                                       const StepData_Factors& theLocalFactors);
+                                       const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepGeom_Conic)& Value() const;

--- a/src/GeomToStep/GeomToStep_MakeConicalSurface.hxx
+++ b/src/GeomToStep/GeomToStep_MakeConicalSurface.hxx
@@ -24,7 +24,6 @@
 #include <GeomToStep_Root.hxx>
 class StepGeom_ConicalSurface;
 class Geom_ConicalSurface;
-class StepData_Factors;


 //! This class implements the mapping between class
@@ -39,7 +38,7 @@ public:

  
  Standard_EXPORT GeomToStep_MakeConicalSurface(const Handle(Geom_ConicalSurface)& CSurf,
-                                                const StepData_Factors& theLocalFactors);
+                                                const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepGeom_ConicalSurface)& Value() const;

--- a/src/GeomToStep/GeomToStep_MakeCurve.hxx
+++ b/src/GeomToStep/GeomToStep_MakeCurve.hxx
@@ -22,7 +22,6 @@
 #include <Standard_Handle.hxx>

 #include <GeomToStep_Root.hxx>
-class StepData_Factors;
 class StepGeom_Curve;
 class Geom_Curve;
 class Geom2d_Curve;
@@ -40,10 +39,10 @@ public:

  
  Standard_EXPORT GeomToStep_MakeCurve(const Handle(Geom_Curve)& C,
-                                       const StepData_Factors& theLocalFactors);
+                                       const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT GeomToStep_MakeCurve(const Handle(Geom2d_Curve)& C,
-                                       const StepData_Factors& theLocalFactors);
+                                       const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepGeom_Curve)& Value() const;

--- a/src/GeomToStep/GeomToStep_MakeCylindricalSurface.hxx
+++ b/src/GeomToStep/GeomToStep_MakeCylindricalSurface.hxx
@@ -24,7 +24,6 @@
 #include <GeomToStep_Root.hxx>
 class StepGeom_CylindricalSurface;
 class Geom_CylindricalSurface;
-class StepData_Factors;


 //! This class implements the mapping between class
@@ -39,7 +38,7 @@ public:

  
  Standard_EXPORT GeomToStep_MakeCylindricalSurface(const Handle(Geom_CylindricalSurface)& CSurf,
-                                                    const StepData_Factors& theLocalFactors);
+                                                    const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepGeom_CylindricalSurface)& Value() const;

--- a/src/GeomToStep/GeomToStep_MakeElementarySurface.hxx
+++ b/src/GeomToStep/GeomToStep_MakeElementarySurface.hxx
@@ -23,7 +23,6 @@

 #include <GeomToStep_Root.hxx>

-class StepData_Factors;
 class StepGeom_ElementarySurface;
 class Geom_ElementarySurface;

@@ -41,7 +40,7 @@ public:

  
  Standard_EXPORT GeomToStep_MakeElementarySurface(const Handle(Geom_ElementarySurface)& S,
-                                                   const StepData_Factors& theLocalFactors);
+                                                   const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepGeom_ElementarySurface)& Value() const;

--- a/src/GeomToStep/GeomToStep_MakeEllipse.hxx
+++ b/src/GeomToStep/GeomToStep_MakeEllipse.hxx
@@ -23,7 +23,6 @@

 #include <GeomToStep_Root.hxx>

-class StepData_Factors;
 class StepGeom_Ellipse;
 class gp_Elips;
 class Geom_Ellipse;
@@ -42,13 +41,13 @@ public:

  
  Standard_EXPORT GeomToStep_MakeEllipse(const gp_Elips& C,
-                                         const StepData_Factors& theLocalFactors);
+                                         const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT GeomToStep_MakeEllipse(const Handle(Geom_Ellipse)& C,
-                                         const StepData_Factors& theLocalFactors);
+                                         const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT GeomToStep_MakeEllipse(const Handle(Geom2d_Ellipse)& C,
-                                         const StepData_Factors& theLocalFactors);
+                                         const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepGeom_Ellipse)& Value() const;

--- a/src/GeomToStep/GeomToStep_MakeHyperbola.hxx
+++ b/src/GeomToStep/GeomToStep_MakeHyperbola.hxx
@@ -38,10 +38,10 @@ public:

  
  Standard_EXPORT GeomToStep_MakeHyperbola(const Handle(Geom2d_Hyperbola)& C,
-                                           const StepData_Factors& theLocalFactors);
+                                           const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT GeomToStep_MakeHyperbola(const Handle(Geom_Hyperbola)& C,
-                                           const StepData_Factors& theLocalFactors);
+                                           const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepGeom_Hyperbola)& Value() const;

--- a/src/GeomToStep/GeomToStep_MakeLine.hxx
+++ b/src/GeomToStep/GeomToStep_MakeLine.hxx
@@ -22,7 +22,6 @@
 #include <Standard_Handle.hxx>

 #include <GeomToStep_Root.hxx>
-class StepData_Factors;
 class StepGeom_Line;
 class gp_Lin;
 class gp_Lin2d;
@@ -42,16 +41,16 @@ public:

  
  Standard_EXPORT GeomToStep_MakeLine(const gp_Lin& L,
-                                      const StepData_Factors& theLocalFactors);
+                                      const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT GeomToStep_MakeLine(const gp_Lin2d& L,
-                                      const StepData_Factors& theLocalFactors);
+                                      const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT GeomToStep_MakeLine(const Handle(Geom_Line)& C,
-                                      const StepData_Factors& theLocalFactors);
+                                      const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT GeomToStep_MakeLine(const Handle(Geom2d_Line)& C,
-                                      const StepData_Factors& theLocalFactors);
+                                      const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepGeom_Line)& Value() const;

--- a/src/GeomToStep/GeomToStep_MakeParabola.hxx
+++ b/src/GeomToStep/GeomToStep_MakeParabola.hxx
@@ -25,7 +25,6 @@
 class StepGeom_Parabola;
 class Geom2d_Parabola;
 class Geom_Parabola;
-class StepData_Factors;


 //! This class implements the mapping between the class
@@ -39,10 +38,10 @@ public:

  
  Standard_EXPORT GeomToStep_MakeParabola(const Handle(Geom2d_Parabola)& C,
-                                          const StepData_Factors& theLocalFactors);
+                                          const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT GeomToStep_MakeParabola(const Handle(Geom_Parabola)& C,
-                                          const StepData_Factors& theLocalFactors);
+                                          const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepGeom_Parabola)& Value() const;

--- a/src/GeomToStep/GeomToStep_MakePlane.hxx
+++ b/src/GeomToStep/GeomToStep_MakePlane.hxx
@@ -22,7 +22,6 @@
 #include <Standard_Handle.hxx>

 #include <GeomToStep_Root.hxx>
-class StepData_Factors;
 class StepGeom_Plane;
 class gp_Pln;
 class Geom_Plane;
@@ -40,10 +39,10 @@ public:

  
  Standard_EXPORT GeomToStep_MakePlane(const gp_Pln& P,
-                                       const StepData_Factors& theLocalFactors);
+                                       const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT GeomToStep_MakePlane(const Handle(Geom_Plane)& P,
-                                       const StepData_Factors& theLocalFactors);
+                                       const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepGeom_Plane)& Value() const;

--- a/src/GeomToStep/GeomToStep_MakePolyline.hxx
+++ b/src/GeomToStep/GeomToStep_MakePolyline.hxx
@@ -25,7 +25,6 @@
 #include <TColgp_Array1OfPnt.hxx>
 #include <TColgp_Array1OfPnt2d.hxx>

-class StepData_Factors;
 class StepGeom_Polyline;


@@ -39,10 +38,10 @@ public:

  
  Standard_EXPORT GeomToStep_MakePolyline(const TColgp_Array1OfPnt& P,
-                                          const StepData_Factors& theLocalFactors);
+                                          const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT GeomToStep_MakePolyline(const TColgp_Array1OfPnt2d& P,
-                                          const StepData_Factors& theLocalFactors);
+                                          const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepGeom_Polyline)& Value() const;

--- a/src/GeomToStep/GeomToStep_MakeRectangularTrimmedSurface.hxx
+++ b/src/GeomToStep/GeomToStep_MakeRectangularTrimmedSurface.hxx
@@ -23,7 +23,6 @@

 #include <GeomToStep_Root.hxx>

-class StepData_Factors;
 class StepGeom_RectangularTrimmedSurface;
 class Geom_RectangularTrimmedSurface;

@@ -41,7 +40,7 @@ public:

  
  Standard_EXPORT GeomToStep_MakeRectangularTrimmedSurface(const Handle(Geom_RectangularTrimmedSurface)& RTSurf,
-                                                           const StepData_Factors& theLocalFactors);
+                                                           const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepGeom_RectangularTrimmedSurface)& Value() const;

--- a/src/GeomToStep/GeomToStep_MakeSphericalSurface.hxx
+++ b/src/GeomToStep/GeomToStep_MakeSphericalSurface.hxx
@@ -23,7 +23,6 @@

 #include <GeomToStep_Root.hxx>

-class StepData_Factors;
 class StepGeom_SphericalSurface;
 class Geom_SphericalSurface;

@@ -40,7 +39,7 @@ public:

  
  Standard_EXPORT GeomToStep_MakeSphericalSurface(const Handle(Geom_SphericalSurface)& CSurf,
-                                                  const StepData_Factors& theLocalFactors);
+                                                  const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepGeom_SphericalSurface)& Value() const;

--- a/src/GeomToStep/GeomToStep_MakeSurface.hxx
+++ b/src/GeomToStep/GeomToStep_MakeSurface.hxx
@@ -23,7 +23,6 @@

 #include <GeomToStep_Root.hxx>

-class StepData_Factors;
 class StepGeom_Surface;
 class Geom_Surface;

@@ -40,7 +39,7 @@ public:

  
  Standard_EXPORT GeomToStep_MakeSurface(const Handle(Geom_Surface)& C,
-                                         const StepData_Factors& theLocalFactors);
+                                         const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepGeom_Surface)& Value() const;

--- a/src/GeomToStep/GeomToStep_MakeSurfaceOfLinearExtrusion.hxx
+++ b/src/GeomToStep/GeomToStep_MakeSurfaceOfLinearExtrusion.hxx
@@ -23,7 +23,6 @@

 #include <GeomToStep_Root.hxx>

-class StepData_Factors;
 class StepGeom_SurfaceOfLinearExtrusion;
 class Geom_SurfaceOfLinearExtrusion;

@@ -40,7 +39,7 @@ public:

  
  Standard_EXPORT GeomToStep_MakeSurfaceOfLinearExtrusion(const Handle(Geom_SurfaceOfLinearExtrusion)& CSurf,
-                                                          const StepData_Factors& theLocalFactors);
+                                                          const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepGeom_SurfaceOfLinearExtrusion)& Value() const;

--- a/src/GeomToStep/GeomToStep_MakeSurfaceOfRevolution.hxx
+++ b/src/GeomToStep/GeomToStep_MakeSurfaceOfRevolution.hxx
@@ -23,7 +23,6 @@

 #include <GeomToStep_Root.hxx>

-class StepData_Factors;
 class StepGeom_SurfaceOfRevolution;
 class Geom_SurfaceOfRevolution;

@@ -40,7 +39,7 @@ public:

  
  Standard_EXPORT GeomToStep_MakeSurfaceOfRevolution(const Handle(Geom_SurfaceOfRevolution)& RevSurf,
-                                                     const StepData_Factors& theLocalFactors);
+                                                     const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepGeom_SurfaceOfRevolution)& Value() const;

--- a/src/GeomToStep/GeomToStep_MakeSweptSurface.hxx
+++ b/src/GeomToStep/GeomToStep_MakeSweptSurface.hxx
@@ -23,7 +23,6 @@

 #include <GeomToStep_Root.hxx>

-class StepData_Factors;
 class StepGeom_SweptSurface;
 class Geom_SweptSurface;

@@ -41,7 +40,7 @@ public:

  
  Standard_EXPORT GeomToStep_MakeSweptSurface(const Handle(Geom_SweptSurface)& S,
-                                              const StepData_Factors& theLocalFactors);
+                                              const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepGeom_SweptSurface)& Value() const;

--- a/src/GeomToStep/GeomToStep_MakeToroidalSurface.hxx
+++ b/src/GeomToStep/GeomToStep_MakeToroidalSurface.hxx
@@ -23,7 +23,6 @@

 #include <GeomToStep_Root.hxx>

-class StepData_Factors;
 class StepGeom_ToroidalSurface;
 class Geom_ToroidalSurface;

@@ -40,7 +39,7 @@ public:

  
  Standard_EXPORT GeomToStep_MakeToroidalSurface(const Handle(Geom_ToroidalSurface)& TorSurf,
-                                                 const StepData_Factors& theLocalFactors);
+                                                 const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepGeom_ToroidalSurface)& Value() const;

--- a/src/GeomToStep/GeomToStep_MakeVector.hxx
+++ b/src/GeomToStep/GeomToStep_MakeVector.hxx
@@ -23,7 +23,6 @@

 #include <GeomToStep_Root.hxx>

-class StepData_Factors;
 class StepGeom_Vector;
 class gp_Vec;
 class gp_Vec2d;
@@ -43,16 +42,16 @@ public:

  
  Standard_EXPORT GeomToStep_MakeVector(const gp_Vec& V,
-                                        const StepData_Factors& theLocalFactors);
+                                        const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT GeomToStep_MakeVector(const gp_Vec2d& V,
-                                        const StepData_Factors& theLocalFactors);
+                                        const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT GeomToStep_MakeVector(const Handle(Geom_Vector)& V,
-                                        const StepData_Factors& theLocalFactors);
+                                        const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT GeomToStep_MakeVector(const Handle(Geom2d_Vector)& V,
-                                        const StepData_Factors& theLocalFactors);
+                                        const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepGeom_Vector)& Value() const;

--- a/src/GeomToStep/GeomToStep_Root.hxx
+++ b/src/GeomToStep/GeomToStep_Root.hxx
@@ -20,6 +20,7 @@
 #include <Standard.hxx>
 #include <Standard_DefineAlloc.hxx>
 #include <Standard_Handle.hxx>
+#include <StepData_Factors.hxx>

 #include <Standard_Boolean.hxx>

--- a/src/STEPCAFControl/STEPCAFControl_Reader.hxx
+++ b/src/STEPCAFControl/STEPCAFControl_Reader.hxx
@@ -17,6 +17,7 @@
 #define _STEPCAFControl_Reader_HeaderFile

 #include <STEPControl_Reader.hxx>
+#include <StepData_Factors.hxx>
 #include <IFSelect_ReturnStatus.hxx>
 #include <TDF_LabelSequence.hxx>
 #include <TopTools_MapOfShape.hxx>
@@ -38,8 +39,6 @@ class StepShape_ConnectedFaceSet;
 class StepRepr_NextAssemblyUsageOccurrence;
 class STEPConstruct_Tool;
 class StepDimTol_Datum;
-class StepData_Factors;
-

 //! Provides a tool to read STEP file and put it into
 //! DECAF document. Besides transfer of shapes (including
@@ -234,7 +233,7 @@ protected:
  Standard_EXPORT Standard_Boolean ReadColors
                (const Handle(XSControl_WorkSession)& WS,
                 const Handle(TDocStd_Document)& doc,
-                 const StepData_Factors& theLocalFactors) const;
+                 const StepData_Factors& theLocalFactors = StepData_Factors()) const;
  
  //! Reads names of parts defined in the STEP model and
  //! assigns them to corresponding labels in the DECAF document
@@ -246,7 +245,7 @@ protected:
  Standard_EXPORT Standard_Boolean ReadValProps (const Handle(XSControl_WorkSession)& WS,
                                                 const Handle(TDocStd_Document)& doc,
                                                 const STEPCAFControl_DataMapOfPDExternFile& PDFileMap,
-                                                 const StepData_Factors& theLocalFactors) const;
+                                                 const StepData_Factors& theLocalFactors = StepData_Factors()) const;
  
  //! Reads layers of parts defined in the STEP model and
  //! set reference between shape and layers in the DECAF document
@@ -260,19 +259,19 @@ protected:
  //! set reference between shape instances from different assemblyes
  Standard_EXPORT Standard_Boolean ReadGDTs (const Handle(XSControl_WorkSession)& WS,
                                             const Handle(TDocStd_Document)& doc,
-                                             const StepData_Factors& theLocalFactors);
+                                             const StepData_Factors& theLocalFactors = StepData_Factors());
  
  //! Reads materials for instances defined in the STEP model and
  //! set reference between shape instances from different assemblyes
  Standard_EXPORT Standard_Boolean ReadMaterials (const Handle(XSControl_WorkSession)& WS,
                                                  const Handle(TDocStd_Document)& doc,
                                                  const Handle(TColStd_HSequenceOfTransient)& SeqPDS,
-                                                  const StepData_Factors& theLocalFactors) const;
+                                                  const StepData_Factors& theLocalFactors = StepData_Factors()) const;
  
  //! Reads Views for instances defined in the STEP model
  Standard_EXPORT Standard_Boolean ReadViews(const Handle(XSControl_WorkSession)& theWS,
                                             const Handle(TDocStd_Document)& theDoc,
-                                             const StepData_Factors& theLocalFactors) const;
+                                             const StepData_Factors& theLocalFactors = StepData_Factors()) const;

  //! Populates the sub-Label of the passed TDF Label with shape
  //! data associated with the given STEP Representation Item,
@@ -314,20 +313,20 @@ private:
    const Standard_Real theModifValue,
    const Handle(TDocStd_Document)& theDoc,
    const Handle(XSControl_WorkSession)& theWS,
-    const StepData_Factors& theLocalFactors);
+    const StepData_Factors& theLocalFactors = StepData_Factors());
  
  //! Internal method. Read Datums, connected to GeomTolerance theGDTL.
  Standard_Boolean readDatumsAP242(const Handle(Standard_Transient)& theEnt,
    const TDF_Label theGDTL,
    const Handle(TDocStd_Document)& theDoc,
    const Handle(XSControl_WorkSession)& theWS,
-    const StepData_Factors& theLocalFactors);
+    const StepData_Factors& theLocalFactors = StepData_Factors());

  //! Internal method. Read Dimension or GeomTolerance.
  TDF_Label createGDTObjectInXCAF(const Handle(Standard_Transient)& theEnt,
    const Handle(TDocStd_Document)& theDoc,
    const Handle(XSControl_WorkSession)& theWS,
-    const StepData_Factors& theLocalFactors);
+    const StepData_Factors& theLocalFactors = StepData_Factors());

  //! Prepares units for transfer
  void prepareUnits(const Handle(StepData_StepModel)& theModel,
--- a/src/STEPCAFControl/STEPCAFControl_Writer.hxx
+++ b/src/STEPCAFControl/STEPCAFControl_Writer.hxx
@@ -25,6 +25,7 @@
 #include <STEPControl_Writer.hxx>
 #include <StepAP242_GeometricItemSpecificUsage.hxx>
 #include <StepData_ConfParameters.hxx>
+#include <StepData_Factors.hxx>
 #include <StepDimTol_Datum.hxx>
 #include <StepDimTol_GeometricTolerance.hxx>
 #include <StepDimTol_HArray1OfDatumSystemOrReference.hxx>
@@ -39,7 +40,6 @@ class XSControl_WorkSession;
 class TDocStd_Document;
 class STEPCAFControl_ExternFile;
 class TopoDS_Shape;
-class StepData_Factors;

 //! Provides a tool to write DECAF document to the
 //! STEP file. Besides transfer of shapes (including
@@ -233,7 +233,7 @@ protected:
  TopoDS_Shape transferExternFiles(const TDF_Label& theLabel,
                                   const STEPControl_StepModelType theMode,
                                   TDF_LabelSequence& theLabelSeq,
-                                   const StepData_Factors& theLocalFactors,
+                                   const StepData_Factors& theLocalFactors = StepData_Factors(),
                                   const Standard_CString thePrefix = "",
                                   const Message_ProgressRange& theProgress = Message_ProgressRange());

@@ -256,7 +256,7 @@ protected:
  //! Write D&GTs assigned to specified labels, to STEP model, according AP242
  Standard_Boolean writeDGTsAP242(const Handle(XSControl_WorkSession)& theWS,
                                  const TDF_LabelSequence& theLabels,
-                                  const StepData_Factors& theLocalFactors);
+                                  const StepData_Factors& theLocalFactors = StepData_Factors());

  //! Write materials assigned to specified labels, to STEP model
  Standard_Boolean writeMaterials(const Handle(XSControl_WorkSession)& theWS,
@@ -297,14 +297,14 @@ protected:
                         const gp_Ax2& theAnnotationPlane,
                         const gp_Pnt& theTextPosition,
                         const Handle(Standard_Transient)& theDimension,
-                         const StepData_Factors& theLocalFactors);
+                         const StepData_Factors& theLocalFactors = StepData_Factors());

  Handle(StepDimTol_Datum) writeDatumAP242(const Handle(XSControl_WorkSession)& theWS,
                                           const TDF_LabelSequence& theShapeL,
                                           const TDF_Label& theDatumL,
                                           const Standard_Boolean isFirstDTarget,
                                           const Handle(StepDimTol_Datum)& theWrittenDatum,
-                                           const StepData_Factors& theLocalFactors);
+                                           const StepData_Factors& theLocalFactors = StepData_Factors());

  void writeToleranceZone(const Handle(XSControl_WorkSession)& theWS,
                          const Handle(XCAFDimTolObjects_GeomToleranceObject)& theObject,
@@ -316,7 +316,7 @@ protected:
                          const TDF_Label& theGeomTolL,
                          const Handle(StepDimTol_HArray1OfDatumSystemOrReference)& theDatumSystem,
                          const Handle(StepRepr_RepresentationContext)& theRC,
-                          const StepData_Factors& theLocalFactors);
+                          const StepData_Factors& theLocalFactors = StepData_Factors());

 private:

--- a/src/STEPConstruct/STEPConstruct_UnitContext.hxx
+++ b/src/STEPConstruct/STEPConstruct_UnitContext.hxx
@@ -23,8 +23,8 @@

 #include <Standard_Integer.hxx>
 #include <Standard_CString.hxx>
+#include <StepData_Factors.hxx>
 #include <StepBasic_SiPrefix.hxx>
-class StepData_Factors;
 class StepData_StepModel;
 class StepGeom_GeomRepContextAndGlobUnitAssCtxAndGlobUncertaintyAssCtx;
 class StepRepr_GlobalUnitAssignedContext;
@@ -49,7 +49,7 @@ public:
  //! uncertainty equal to Tol3d)
  Standard_EXPORT void Init (const Standard_Real Tol3d,
                             const Handle(StepData_StepModel)& theModel,
-                             const StepData_Factors& theLocalFactors);
+                             const StepData_Factors& theLocalFactors = StepData_Factors());
  
  //! Returns True if Init was called successfully
  Standard_EXPORT Standard_Boolean IsDone() const;
@@ -60,10 +60,10 @@ public:
  //! Computes the length, plane angle and solid angle conversion
  //! factor  .  Returns a status, 0 if OK
  Standard_EXPORT Standard_Integer ComputeFactors (const Handle(StepRepr_GlobalUnitAssignedContext)& aContext,
-                                                   const StepData_Factors& theLocalFactors);
+                                                   const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT Standard_Integer ComputeFactors (const Handle(StepBasic_NamedUnit)& aUnit,
-                                                   const StepData_Factors& theLocalFactors);
+                                                   const StepData_Factors& theLocalFactors = StepData_Factors());
  
  //! Computes the uncertainty value (for length)
  Standard_EXPORT Standard_Integer ComputeTolerance (const Handle(StepRepr_GlobalUncertaintyAssignedContext)& aContext);
--- a/src/STEPConstruct/STEPConstruct_ValidationProps.hxx
+++ b/src/STEPConstruct/STEPConstruct_ValidationProps.hxx
@@ -26,7 +26,6 @@
 #include <Standard_CString.hxx>
 #include <TColStd_SequenceOfTransient.hxx>
 class StepBasic_ProductDefinition;
-class StepData_Factors;
 class XSControl_WorkSession;
 class TopoDS_Shape;
 class StepRepr_RepresentationItem;
@@ -115,13 +114,13 @@ public:
  Standard_EXPORT Standard_Boolean GetPropReal (const Handle(StepRepr_RepresentationItem)& item,
                                                Standard_Real& Val,
                                                Standard_Boolean& isArea,
-                                                const StepData_Factors& theLocalFactors) const;
+                                                const StepData_Factors& theLocalFactors = StepData_Factors()) const;
  
  //! Returns value of Centriod property (or False if it is not)
  Standard_EXPORT Standard_Boolean GetPropPnt (const Handle(StepRepr_RepresentationItem)& item,
                                               const Handle(StepRepr_RepresentationContext)& Context,
                                               gp_Pnt& Pnt,
-                                               const StepData_Factors& theLocalFactors) const;
+                                               const StepData_Factors& theLocalFactors = StepData_Factors()) const;
  
  //! Sets current assembly shape SDR (for FindCDSR calls)
  Standard_EXPORT void SetAssemblyShape (const TopoDS_Shape& shape);
--- a/src/STEPControl/STEPControl_ActorRead.cxx
+++ b/src/STEPControl/STEPControl_ActorRead.cxx
@@ -1500,7 +1500,7 @@ Handle(TransferBRep_ShapeBinder) STEPControl_ActorRead::TransferEntity
    }
    else if (start->IsKind(STANDARD_TYPE(StepVisual_TessellatedSurfaceSet)))
    {
-      myShapeBuilder.Init(GetCasted(StepVisual_TessellatedSurfaceSet, start), TP, aLocalFactors, aHasGeom);
+      myShapeBuilder.Init(GetCasted(StepVisual_TessellatedSurfaceSet, start), TP, aHasGeom, aLocalFactors);
      found = Standard_True;
    }
  }
--- a/src/STEPControl/STEPControl_ActorRead.hxx
+++ b/src/STEPControl/STEPControl_ActorRead.hxx
@@ -20,6 +20,7 @@
 #include <Standard.hxx>
 #include <Standard_Type.hxx>

+#include <StepData_Factors.hxx>
 #include <StepToTopoDS_NMTool.hxx>
 #include <Transfer_ActorOfTransientProcess.hxx>
 #include <Standard_Integer.hxx>
@@ -47,7 +48,6 @@ class StepShape_FaceSurface;
 class TopoDS_Shell;
 class TopoDS_Compound;
 class StepRepr_ConstructiveGeometryRepresentationRelationship;
-class StepData_Factors;
 class StepData_StepModel;


@@ -77,7 +77,7 @@ public:
  Standard_EXPORT Handle(Transfer_Binder) TransferShape (
      const Handle(Standard_Transient)& start,
      const Handle(Transfer_TransientProcess)& TP,
-      const StepData_Factors& theLocalFactors,
+      const StepData_Factors& theLocalFactors = StepData_Factors(),
      const Standard_Boolean isManifold = Standard_True,
      const Standard_Boolean theUseTrsf = Standard_False,
      const Message_ProgressRange& theProgress = Message_ProgressRange());
@@ -105,14 +105,14 @@ public:
                                                          const Handle(StepRepr_Representation)& TargContext,
                                                          const Handle(Transfer_TransientProcess)& TP,
                                                          gp_Trsf& Trsf,
-                                                          const StepData_Factors& theLocalFactors);
+                                                          const StepData_Factors& theLocalFactors = StepData_Factors());

  //! Computes transformation defined by given
  //! REPRESENTATION_RELATIONSHIP_WITH_TRANSFORMATION
  Standard_EXPORT Standard_Boolean ComputeSRRWT (const Handle(StepRepr_RepresentationRelationship)& SRR,
                                                 const Handle(Transfer_TransientProcess)& TP,
                                                 gp_Trsf& Trsf,
-                                                 const StepData_Factors& theLocalFactors);
+                                                 const StepData_Factors& theLocalFactors = StepData_Factors());



@@ -127,7 +127,7 @@ protected:
    Standard_EXPORT Handle(TransferBRep_ShapeBinder) TransferEntity (
      const Handle(StepBasic_ProductDefinition)& PD,
      const Handle(Transfer_TransientProcess)& TP,
-      const StepData_Factors& theLocalFactors,
+      const StepData_Factors& theLocalFactors = StepData_Factors(),
      const Standard_Boolean theUseTrsf = Standard_False,
      const Message_ProgressRange& theProgress = Message_ProgressRange());

@@ -135,7 +135,7 @@ protected:
  Standard_EXPORT Handle(TransferBRep_ShapeBinder) TransferEntity
                   (const Handle(StepRepr_NextAssemblyUsageOccurrence)& NAUO,
                    const Handle(Transfer_TransientProcess)& TP,
-                    const StepData_Factors& theLocalFactors,
+                    const StepData_Factors& theLocalFactors = StepData_Factors(),
                    const Message_ProgressRange& theProgress = Message_ProgressRange());

  //! Transfers shape representation entity
@@ -152,7 +152,7 @@ protected:
  Standard_EXPORT Handle(TransferBRep_ShapeBinder) TransferEntity
                   (const Handle(StepShape_ContextDependentShapeRepresentation)& CDSR,
                    const Handle(Transfer_TransientProcess)& TP,
-                    const StepData_Factors& theLocalFactors,
+                    const StepData_Factors& theLocalFactors = StepData_Factors(),
                    const Message_ProgressRange& theProgress = Message_ProgressRange());

  //! Transfers  shape representation relationship entity
@@ -189,7 +189,7 @@ protected:

  Handle(TransferBRep_ShapeBinder) TransferEntity( const Handle(StepRepr_ConstructiveGeometryRepresentationRelationship)& theCGRR,
                                                   const Handle(Transfer_TransientProcess)& theTP,
-                                                   const StepData_Factors& theLocalFactors);
+                                                   const StepData_Factors& theLocalFactors = StepData_Factors());

  //! Translates file by old way when CDSR are roots . Acts only if "read.step.product_mode" is equal Off.
  Standard_EXPORT Handle(TransferBRep_ShapeBinder) OldWay
--- a/src/STEPControl/STEPControl_ActorWrite.hxx
+++ b/src/STEPControl/STEPControl_ActorWrite.hxx
@@ -28,7 +28,6 @@
 class Transfer_Finder;
 class Transfer_Binder;
 class Transfer_FinderProcess;
-class StepData_Factors;
 class StepShape_ShapeDefinitionRepresentation;
 class StepGeom_Axis2Placement3d;
 class TopoDS_Shape;
@@ -60,7 +59,7 @@ public:
                    const Handle(StepShape_ShapeDefinitionRepresentation)& SDR,
                    Handle(StepGeom_Axis2Placement3d)& AX1, 
                    const Handle(Transfer_FinderProcess)& FP,
-                    const StepData_Factors& theLocalFactors,
+                    const StepData_Factors& theLocalFactors = StepData_Factors(),
                    const Handle(TopTools_HSequenceOfShape)& shapeGroup = NULL, 
                    const Standard_Boolean isManifold = Standard_True,
                    const Message_ProgressRange& theProgress = Message_ProgressRange());
@@ -69,7 +68,7 @@ public:
                   (const Handle(Transfer_Finder)& start,
                    const Handle(StepShape_ShapeDefinitionRepresentation)& SDR,
                    const Handle(Transfer_FinderProcess)& FP,
-                    const StepData_Factors& theLocalFactors,
+                    const StepData_Factors& theLocalFactors = StepData_Factors(),
                    const Handle(TopTools_HSequenceOfShape)& shapeGroup = NULL,
                    const Standard_Boolean isManifold = Standard_True,
                    const Message_ProgressRange& theProgress = Message_ProgressRange());
@@ -78,7 +77,7 @@ public:
                   (const Handle(Transfer_Finder)& start,
                    const Handle(StepShape_ShapeDefinitionRepresentation)& SDR,
                    const Handle(Transfer_FinderProcess)& FP,
-                    const StepData_Factors& theLocalFactors,
+                    const StepData_Factors& theLocalFactors = StepData_Factors(),
                    const Message_ProgressRange& theProgress = Message_ProgressRange());
  
  Standard_EXPORT void SetMode (const STEPControl_StepModelType M);
--- a/src/SelectMgr/SelectMgr_SensitiveEntitySet.cxx
+++ b/src/SelectMgr/SelectMgr_SensitiveEntitySet.cxx
@@ -28,7 +28,7 @@ IMPLEMENT_STANDARD_RTTIEXT(SelectMgr_SensitiveEntitySet, BVH_PrimitiveSet3d)
 SelectMgr_SensitiveEntitySet::SelectMgr_SensitiveEntitySet (const Handle(Select3D_BVHBuilder3d)& theBuilder)
 : BVH_PrimitiveSet3d (theBuilder)
 {
-  //
+  myNbEntityWithPersistence = 0;
 }

 //=======================================================================
@@ -42,7 +42,6 @@ void SelectMgr_SensitiveEntitySet::Append (const Handle(SelectMgr_SensitiveEntit
    theEntity->ResetSelectionActiveStatus();
    return;
  }
-
  const Standard_Integer anExtent = mySensitives.Extent();
  if (mySensitives.Add (theEntity) > anExtent)
  {
@@ -50,7 +49,7 @@ void SelectMgr_SensitiveEntitySet::Append (const Handle(SelectMgr_SensitiveEntit
  }
  if (!theEntity->BaseSensitive()->TransformPersistence().IsNull())
  {
-    myHasEntityWithPersistence = Standard_True;
+    ++myNbEntityWithPersistence;
  }
  MarkDirty();
 }
@@ -78,7 +77,7 @@ void SelectMgr_SensitiveEntitySet::Append (const Handle(SelectMgr_Selection)& th
    }
    if (!aSensEnt->BaseSensitive()->TransformPersistence().IsNull())
    {
-      myHasEntityWithPersistence = Standard_True;
+      ++myNbEntityWithPersistence;
    }
  }
  MarkDirty();
@@ -93,7 +92,8 @@ void SelectMgr_SensitiveEntitySet::Remove (const Handle(SelectMgr_Selection)& th
 {
  for (NCollection_Vector<Handle(SelectMgr_SensitiveEntity)>::Iterator aSelEntIter (theSelection->Entities()); aSelEntIter.More(); aSelEntIter.Next())
  {
-    const Standard_Integer anEntIdx = mySensitives.FindIndex (aSelEntIter.Value());
+    const Handle(SelectMgr_SensitiveEntity)& aSensEnt = aSelEntIter.Value();
+    const Standard_Integer anEntIdx = mySensitives.FindIndex (aSensEnt);
    if (anEntIdx == 0)
    {
      continue;
@@ -103,9 +103,13 @@ void SelectMgr_SensitiveEntitySet::Remove (const Handle(SelectMgr_Selection)& th
    {
      Swap (anEntIdx - 1, mySensitives.Size() - 1);
    }
+    if (!aSensEnt->BaseSensitive()->TransformPersistence().IsNull())
+    {
+      --myNbEntityWithPersistence;
+    }

    mySensitives.RemoveLast();
-    removeOwner (aSelEntIter.Value()->BaseSensitive()->OwnerId());
+    removeOwner (aSensEnt->BaseSensitive()->OwnerId());
  }

  MarkDirty();
--- a/src/SelectMgr/SelectMgr_SensitiveEntitySet.hxx
+++ b/src/SelectMgr/SelectMgr_SensitiveEntitySet.hxx
@@ -77,7 +77,7 @@ public:
  const SelectMgr_MapOfOwners& Owners() const { return myOwnersMap; }

  //! Returns map of entities.
-  Standard_Boolean HasEntityWithPersistence() const { return myHasEntityWithPersistence; }
+  Standard_Boolean HasEntityWithPersistence() const { return myNbEntityWithPersistence > 0; }

 protected:

@@ -89,9 +89,9 @@ protected:

 private:

-  SelectMgr_IndexedMapOfHSensitive mySensitives; //!< Map of entities and its corresponding index in BVH
-  SelectMgr_MapOfOwners            myOwnersMap;  //!< Map of entity owners and its corresponding number of sensitives
-  Standard_Boolean  myHasEntityWithPersistence;  //!< flag if some of sensitive entity has own transform persistence
+  SelectMgr_IndexedMapOfHSensitive mySensitives;              //!< Map of entities and its corresponding index in BVH
+  SelectMgr_MapOfOwners            myOwnersMap;               //!< Map of entity owners and its corresponding number of sensitives
+  Standard_Integer                 myNbEntityWithPersistence; //!< number of sensitive entities that have own transform persistence
 };

 #endif // _SelectMgr_SensitiveEntitySet_HeaderFile
--- a/src/Standard/Standard_Version.hxx
+++ b/src/Standard/Standard_Version.hxx
@@ -35,19 +35,19 @@
 // Primary definitions
 #define OCC_VERSION_MAJOR         7
 #define OCC_VERSION_MINOR         8
-#define OCC_VERSION_MAINTENANCE   0
+#define OCC_VERSION_MAINTENANCE   1

 //! This macro must be commented in official release, and set to non-empty 
 //! string in other situations, to identify specifics of the version, e.g.:
 //! - "dev" for development version between releases
 //! - "beta..." or "rc..." for beta releases or release candidates
 //! - "project..." for version containing project-specific fixes
-//#define OCC_VERSION_DEVELOPMENT   "dev"
+#define OCC_VERSION_DEVELOPMENT   "dev"

 // Derived (manually): version as real and string (major.minor)
 #define OCC_VERSION               7.8
 #define OCC_VERSION_STRING       "7.8"
-#define OCC_VERSION_COMPLETE     "7.8.0"
+#define OCC_VERSION_COMPLETE     "7.8.1"

 //! Derived: extended version as string ("major.minor.maintenance.dev")
 #ifdef OCC_VERSION_DEVELOPMENT
--- a/src/StepToGeom/StepToGeom.hxx
+++ b/src/StepToGeom/StepToGeom.hxx
@@ -20,6 +20,7 @@
 #include <Standard.hxx>
 #include <Standard_DefineAlloc.hxx>
 #include <Standard_Handle.hxx>
+#include <StepData_Factors.hxx>

 class Geom_Axis1Placement;
 class Geom_Axis2Placement;
@@ -67,7 +68,6 @@ class Geom2d_VectorWithMagnitude;
 class gp_Trsf;
 class gp_Trsf2d;

-class StepData_Factors;
 class StepGeom_Axis1Placement;
 class StepGeom_Axis2Placement2d;
 class StepGeom_Axis2Placement3d;
@@ -115,94 +115,94 @@ class StepToGeom
 public:

  Standard_EXPORT static Handle(Geom_Axis1Placement) MakeAxis1Placement (const Handle(StepGeom_Axis1Placement)& SA,
-                                                                         const StepData_Factors& theLocalFactors);
+                                                                         const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom_Axis2Placement) MakeAxis2Placement (const Handle(StepGeom_Axis2Placement3d)& SA,
-                                                                         const StepData_Factors& theLocalFactors);
+                                                                         const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom_Axis2Placement) MakeAxis2Placement (const Handle(StepGeom_SuParameters)& SP);
  Standard_EXPORT static Handle(Geom2d_AxisPlacement) MakeAxisPlacement (const Handle(StepGeom_Axis2Placement2d)& SA,
-                                                                         const StepData_Factors& theLocalFactors);
+                                                                         const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom_BoundedCurve) MakeBoundedCurve (const Handle(StepGeom_BoundedCurve)& SC,
-                                                                     const StepData_Factors& theLocalFactors);
+                                                                     const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom2d_BoundedCurve) MakeBoundedCurve2d (const Handle(StepGeom_BoundedCurve)& SC,
-                                                                         const StepData_Factors& theLocalFactors);
+                                                                         const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom_BoundedSurface) MakeBoundedSurface (const Handle(StepGeom_BoundedSurface)& SS,
-                                                                         const StepData_Factors& theLocalFactors);
+                                                                         const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom_BSplineCurve) MakeBSplineCurve (const Handle(StepGeom_BSplineCurve)& SC,
-                                                                     const StepData_Factors& theLocalFactors);
+                                                                     const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom2d_BSplineCurve) MakeBSplineCurve2d (const Handle(StepGeom_BSplineCurve)& SC,
-                                                                         const StepData_Factors& theLocalFactors);
+                                                                         const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom_BSplineSurface) MakeBSplineSurface (const Handle(StepGeom_BSplineSurface)& SS,
-                                                                         const StepData_Factors& theLocalFactors);
+                                                                         const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom_CartesianPoint) MakeCartesianPoint (const Handle(StepGeom_CartesianPoint)& SP,
-                                                                         const StepData_Factors& theLocalFactors);
+                                                                         const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom2d_CartesianPoint) MakeCartesianPoint2d (const Handle(StepGeom_CartesianPoint)& SP,
-                                                                             const StepData_Factors& theLocalFactors);
+                                                                             const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom_Circle) MakeCircle (const Handle(StepGeom_Circle)& SC,
-                                                         const StepData_Factors& theLocalFactors);
+                                                         const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom2d_Circle) MakeCircle2d (const Handle(StepGeom_Circle)& SC,
-                                                             const StepData_Factors& theLocalFactors);
+                                                             const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom_Conic) MakeConic (const Handle(StepGeom_Conic)& SC,
-                                                       const StepData_Factors& theLocalFactors);
+                                                       const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom2d_Conic) MakeConic2d (const Handle(StepGeom_Conic)& SC,
-                                                           const StepData_Factors& theLocalFactors);
+                                                           const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom_ConicalSurface) MakeConicalSurface (const Handle(StepGeom_ConicalSurface)& SS,
-                                                                         const StepData_Factors& theLocalFactors);
+                                                                         const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom_Curve) MakeCurve (const Handle(StepGeom_Curve)& SC,
-                                                       const StepData_Factors& theLocalFactors);
+                                                       const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom2d_Curve) MakeCurve2d (const Handle(StepGeom_Curve)& SC,
-                                                           const StepData_Factors& theLocalFactors);
+                                                           const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom_CylindricalSurface) MakeCylindricalSurface (const Handle(StepGeom_CylindricalSurface)& SS,
-                                                                                 const StepData_Factors& theLocalFactors);
+                                                                                 const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom_Direction) MakeDirection (const Handle(StepGeom_Direction)& SD);
  Standard_EXPORT static Handle(Geom2d_Direction) MakeDirection2d (const Handle(StepGeom_Direction)& SD);
  Standard_EXPORT static Handle(Geom_ElementarySurface) MakeElementarySurface (const Handle(StepGeom_ElementarySurface)& SS,
-                                                                               const StepData_Factors& theLocalFactors);
+                                                                               const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom_Ellipse) MakeEllipse (const Handle(StepGeom_Ellipse)& SC,
-                                                           const StepData_Factors& theLocalFactors);
+                                                           const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom2d_Ellipse) MakeEllipse2d (const Handle(StepGeom_Ellipse)& SC,
-                                                               const StepData_Factors& theLocalFactors);
+                                                               const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom_Hyperbola) MakeHyperbola (const Handle(StepGeom_Hyperbola)& SC,
-                                                               const StepData_Factors& theLocalFactors);
+                                                               const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom2d_Hyperbola) MakeHyperbola2d (const Handle(StepGeom_Hyperbola)& SC,
-                                                                   const StepData_Factors& theLocalFactors);
+                                                                   const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom_Line) MakeLine (const Handle(StepGeom_Line)& SC,
-                                                     const StepData_Factors& theLocalFactors);
+                                                     const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom2d_Line) MakeLine2d (const Handle(StepGeom_Line)& SC,
-                                                         const StepData_Factors& theLocalFactors);
+                                                         const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom_Parabola) MakeParabola (const Handle(StepGeom_Parabola)& SC,
-                                                             const StepData_Factors& theLocalFactors);
+                                                             const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom2d_Parabola) MakeParabola2d (const Handle(StepGeom_Parabola)& SC,
-                                                                 const StepData_Factors& theLocalFactors);
+                                                                 const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom_Plane) MakePlane (const Handle(StepGeom_Plane)& SP,
-                                                       const StepData_Factors& theLocalFactors);
+                                                       const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom_BSplineCurve) MakePolyline (const Handle(StepGeom_Polyline)& SPL,
-                                                                 const StepData_Factors& theLocalFactors);
+                                                                 const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom2d_BSplineCurve) MakePolyline2d (const Handle(StepGeom_Polyline)& SPL,
-                                                                     const StepData_Factors& theLocalFactors);
+                                                                     const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom_RectangularTrimmedSurface) MakeRectangularTrimmedSurface (const Handle(StepGeom_RectangularTrimmedSurface)& SS,
-                                                                                               const StepData_Factors& theLocalFactors);
+                                                                                               const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom_SphericalSurface) MakeSphericalSurface (const Handle(StepGeom_SphericalSurface)& SS,
-                                                                             const StepData_Factors& theLocalFactors);
+                                                                             const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom_Surface) MakeSurface (const Handle(StepGeom_Surface)& SS,
-                                                           const StepData_Factors& theLocalFactors);
+                                                           const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom_SurfaceOfLinearExtrusion) MakeSurfaceOfLinearExtrusion (const Handle(StepGeom_SurfaceOfLinearExtrusion)& SS,
-                                                                                             const StepData_Factors& theLocalFactors);
+                                                                                             const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom_SurfaceOfRevolution) MakeSurfaceOfRevolution (const Handle(StepGeom_SurfaceOfRevolution)& SS,
-                                                                                   const StepData_Factors& theLocalFactors);
+                                                                                   const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom_SweptSurface) MakeSweptSurface (const Handle(StepGeom_SweptSurface)& SS,
-                                                                     const StepData_Factors& theLocalFactors);
+                                                                     const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom_ToroidalSurface) MakeToroidalSurface (const Handle(StepGeom_ToroidalSurface)& SS,
-                                                                           const StepData_Factors& theLocalFactors);
+                                                                           const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Standard_Boolean MakeTransformation2d (const Handle(StepGeom_CartesianTransformationOperator2d)& SCTO, gp_Trsf2d& CT,
-                                                                const StepData_Factors& theLocalFactors);
+                                                                const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Standard_Boolean MakeTransformation3d (const Handle(StepGeom_CartesianTransformationOperator3d)& SCTO, gp_Trsf& CT,
-                                                                const StepData_Factors& theLocalFactors);
+                                                                const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom_TrimmedCurve) MakeTrimmedCurve (const Handle(StepGeom_TrimmedCurve)& SC,
-                                                                     const StepData_Factors& theLocalFactors);
+                                                                     const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom2d_BSplineCurve) MakeTrimmedCurve2d (const Handle(StepGeom_TrimmedCurve)& SC,
-                                                                         const StepData_Factors& theLocalFactors);
+                                                                         const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom_VectorWithMagnitude) MakeVectorWithMagnitude (const Handle(StepGeom_Vector)& SV,
-                                                                                   const StepData_Factors& theLocalFactors);
+                                                                                   const StepData_Factors& theLocalFactors = StepData_Factors());
  Standard_EXPORT static Handle(Geom2d_VectorWithMagnitude) MakeVectorWithMagnitude2d (const Handle(StepGeom_Vector)& SV);
  Standard_EXPORT static Handle(TColStd_HArray1OfReal) MakeYprRotation(const StepKinematics_SpatialRotation& SR, const Handle(StepRepr_GlobalUnitAssignedContext)& theCntxt);
 };
--- a/src/StepToTopoDS/StepToTopoDS_Builder.cxx
+++ b/src/StepToTopoDS/StepToTopoDS_Builder.cxx
@@ -897,8 +897,8 @@ void StepToTopoDS_Builder::Init(const Handle(StepVisual_TessellatedFace)& theTF,
 // ============================================================================
 void StepToTopoDS_Builder::Init(const Handle(StepVisual_TessellatedSurfaceSet)& theTSS,
                                const Handle(Transfer_TransientProcess)& theTP,
-                                const StepData_Factors& theLocalFactors,
-                                Standard_Boolean& theHasGeom)
+                                Standard_Boolean& theHasGeom,
+                                const StepData_Factors& theLocalFactors)
 {
  StepToTopoDS_TranslateFace aTranFace;
  aTranFace.SetPrecision(Precision());
--- a/src/StepToTopoDS/StepToTopoDS_Builder.hxx
+++ b/src/StepToTopoDS/StepToTopoDS_Builder.hxx
@@ -55,41 +55,41 @@ public:
  
  Standard_EXPORT void Init (const Handle(StepShape_ManifoldSolidBrep)& theManifoldSolid,
                             const Handle(Transfer_TransientProcess)& theTP,
-                             const StepData_Factors& theLocalFactors,
+                             const StepData_Factors& theLocalFactors = StepData_Factors(),
                             const Message_ProgressRange& theProgress = Message_ProgressRange());
  
  Standard_EXPORT void Init (const Handle(StepShape_BrepWithVoids)& theBRepWithVoids,
                             const Handle(Transfer_TransientProcess)& theTP,
-                             const StepData_Factors& theLocalFactors,
+                             const StepData_Factors& theLocalFactors = StepData_Factors(),
                             const Message_ProgressRange& theProgress = Message_ProgressRange());
  
  Standard_EXPORT void Init (const Handle(StepShape_FacetedBrep)& theFB,
                             const Handle(Transfer_TransientProcess)& theTP,
-                             const StepData_Factors& theLocalFactors,
+                             const StepData_Factors& theLocalFactors = StepData_Factors(),
                             const Message_ProgressRange& theProgress = Message_ProgressRange());
  
  Standard_EXPORT void Init (const Handle(StepShape_FacetedBrepAndBrepWithVoids)& theFBABWV,
                             const Handle(Transfer_TransientProcess)& theTP,
-                             const StepData_Factors& theLocalFactors,
+                             const StepData_Factors& theLocalFactors = StepData_Factors(),
                             const Message_ProgressRange& theProgress = Message_ProgressRange());
  
  Standard_EXPORT void Init (const Handle(StepShape_ShellBasedSurfaceModel)& S,
                             const Handle(Transfer_TransientProcess)& TP,
                             StepToTopoDS_NMTool& NMTool,
-                             const StepData_Factors& theLocalFactors,
+                             const StepData_Factors& theLocalFactors = StepData_Factors(),
                             const Message_ProgressRange& theProgress = Message_ProgressRange());
  
  Standard_EXPORT void Init (const Handle(StepShape_EdgeBasedWireframeModel)& S,
                             const Handle(Transfer_TransientProcess)& TP,
-                             const StepData_Factors& theLocalFactors);
+                             const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT void Init (const Handle(StepShape_FaceBasedSurfaceModel)& S,
                             const Handle(Transfer_TransientProcess)& TP,
-                             const StepData_Factors& theLocalFactors);
+                             const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT void Init (const Handle(StepShape_GeometricSet)& S,
                             const Handle(Transfer_TransientProcess)& TP,
-                             const StepData_Factors& theLocalFactors,
+                             const StepData_Factors& theLocalFactors = StepData_Factors(),
                             const Handle(Transfer_ActorOfTransientProcess)& RA = NULL,
                             const Standard_Boolean isManifold = Standard_False,
                             const Message_ProgressRange& theProgress = Message_ProgressRange());
@@ -98,26 +98,26 @@ public:
                             const Handle(Transfer_TransientProcess)& theTP,
                             const Standard_Boolean theReadTessellatedWhenNoBRepOnly,
                             Standard_Boolean& theHasGeom,
-                             const StepData_Factors& theLocalFactors,
+                             const StepData_Factors& theLocalFactors = StepData_Factors(),
                             const Message_ProgressRange& theProgress = Message_ProgressRange());
  
  Standard_EXPORT void Init (const Handle(StepVisual_TessellatedShell)& theTSh,
                             const Handle(Transfer_TransientProcess)& theTP,
                             const Standard_Boolean theReadTessellatedWhenNoBRepOnly,
                             Standard_Boolean& theHasGeom,
-                             const StepData_Factors& theLocalFactors,
+                             const StepData_Factors& theLocalFactors = StepData_Factors(),
                             const Message_ProgressRange& theProgress = Message_ProgressRange());
  
  Standard_EXPORT void Init (const Handle(StepVisual_TessellatedFace)& theTF,
                             const Handle(Transfer_TransientProcess)& theTP,
                             const Standard_Boolean theReadTessellatedWhenNoBRepOnly,
                             Standard_Boolean& theHasGeom,
-                             const StepData_Factors& theLocalFactors);
+                             const StepData_Factors& theLocalFactors = StepData_Factors());

  Standard_EXPORT void Init (const Handle(StepVisual_TessellatedSurfaceSet)& theTSS,
                             const Handle(Transfer_TransientProcess)& theTP,
-                             const StepData_Factors& theLocalFactors,
-                             Standard_Boolean& theHasGeom);
+                             Standard_Boolean& theHasGeom,
+                             const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const TopoDS_Shape& Value() const;
  
--- a/src/StepToTopoDS/StepToTopoDS_MakeTransformed.hxx
+++ b/src/StepToTopoDS/StepToTopoDS_MakeTransformed.hxx
@@ -25,7 +25,6 @@
 #include <StepToTopoDS_Root.hxx>
 #include <Message_ProgressRange.hxx>

-class StepData_Factors;
 class StepGeom_Axis2Placement3d;
 class StepGeom_CartesianTransformationOperator3d;
 class TopoDS_Shape;
@@ -47,11 +46,11 @@ public:
  //! If not done, the transformation will by Identity
  Standard_EXPORT Standard_Boolean Compute (const Handle(StepGeom_Axis2Placement3d)& Origin,
                                            const Handle(StepGeom_Axis2Placement3d)& Target,
-                                            const StepData_Factors& theLocalFactors);
+                                            const StepData_Factors& theLocalFactors = StepData_Factors());
  
  //! Computes a transformation defined by an operator 3D
  Standard_EXPORT Standard_Boolean Compute (const Handle(StepGeom_CartesianTransformationOperator3d)& Operator,
-                                            const StepData_Factors& theLocalFactors);
+                                            const StepData_Factors& theLocalFactors = StepData_Factors());
  
  //! Returns the computed transformation (Identity if not yet or
  //! if failed)
@@ -73,7 +72,7 @@ public:
  //! transformed as an instance of this Shape
  Standard_EXPORT TopoDS_Shape TranslateMappedItem (const Handle(StepRepr_MappedItem)& mapit,
                                                    const Handle(Transfer_TransientProcess)& TP,
-                                                    const StepData_Factors& theLocalFactors,
+                                                    const StepData_Factors& theLocalFactors = StepData_Factors(),
                                                    const Message_ProgressRange& theProgress = Message_ProgressRange());


--- a/src/StepToTopoDS/StepToTopoDS_TranslateCompositeCurve.hxx
+++ b/src/StepToTopoDS/StepToTopoDS_TranslateCompositeCurve.hxx
@@ -49,26 +49,26 @@ public:
  //! Translates standalone composite_curve
  Standard_EXPORT StepToTopoDS_TranslateCompositeCurve(const Handle(StepGeom_CompositeCurve)& CC,
                                                       const Handle(Transfer_TransientProcess)& TP,
-                                                       const StepData_Factors& theLocalFactors);
+                                                       const StepData_Factors& theLocalFactors = StepData_Factors());
  
  //! Translates composite_curve lying on surface
  Standard_EXPORT StepToTopoDS_TranslateCompositeCurve(const Handle(StepGeom_CompositeCurve)& CC,
                                                       const Handle(Transfer_TransientProcess)& TP,
                                                       const Handle(StepGeom_Surface)& S,
                                                       const Handle(Geom_Surface)& Surf,
-                                                       const StepData_Factors& theLocalFactors);
+                                                       const StepData_Factors& theLocalFactors = StepData_Factors());
  
  //! Translates standalone composite_curve
  Standard_EXPORT Standard_Boolean Init (const Handle(StepGeom_CompositeCurve)& CC,
                                         const Handle(Transfer_TransientProcess)& TP,
-                                         const StepData_Factors& theLocalFactors);
+                                         const StepData_Factors& theLocalFactors = StepData_Factors());
  
  //! Translates composite_curve lying on surface
  Standard_EXPORT Standard_Boolean Init (const Handle(StepGeom_CompositeCurve)& CC,
                                         const Handle(Transfer_TransientProcess)& TP,
                                         const Handle(StepGeom_Surface)& S,
                                         const Handle(Geom_Surface)& Surf,
-                                         const StepData_Factors& theLocalFactors);
+                                         const StepData_Factors& theLocalFactors = StepData_Factors());
  
  //! Returns result of last translation or null wire if failed.
  Standard_EXPORT const TopoDS_Wire& Value() const;
--- a/src/StepToTopoDS/StepToTopoDS_TranslateCurveBoundedSurface.hxx
+++ b/src/StepToTopoDS/StepToTopoDS_TranslateCurveBoundedSurface.hxx
@@ -41,12 +41,12 @@ public:
  //! Translate surface
  Standard_EXPORT StepToTopoDS_TranslateCurveBoundedSurface(const Handle(StepGeom_CurveBoundedSurface)& CBS,
                                                            const Handle(Transfer_TransientProcess)& TP,
-                                                            const StepData_Factors& theLocalFactors);
+                                                            const StepData_Factors& theLocalFactors = StepData_Factors());
  
  //! Translate surface
  Standard_EXPORT Standard_Boolean Init (const Handle(StepGeom_CurveBoundedSurface)& CBS,
                                         const Handle(Transfer_TransientProcess)& TP,
-                                         const StepData_Factors& theLocalFactors);
+                                         const StepData_Factors& theLocalFactors = StepData_Factors());
  
  //! Returns result of last translation or null wire if failed.
  Standard_EXPORT const TopoDS_Face& Value() const;
--- a/src/StepToTopoDS/StepToTopoDS_TranslateEdge.hxx
+++ b/src/StepToTopoDS/StepToTopoDS_TranslateEdge.hxx
@@ -24,7 +24,6 @@
 #include <StepToTopoDS_TranslateEdgeError.hxx>
 #include <TopoDS_Shape.hxx>
 #include <StepToTopoDS_Root.hxx>
-class StepData_Factors;
 class StepShape_Edge;
 class StepToTopoDS_Tool;
 class StepToTopoDS_NMTool;
@@ -51,12 +50,12 @@ public:
  Standard_EXPORT StepToTopoDS_TranslateEdge(const Handle(StepShape_Edge)& E,
                                             StepToTopoDS_Tool& T,
                                             StepToTopoDS_NMTool& NMTool,
-                                             const StepData_Factors& theLocalFactors);
+                                             const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT void Init (const Handle(StepShape_Edge)& E,
                             StepToTopoDS_Tool& T,
                             StepToTopoDS_NMTool& NMTool,
-                             const StepData_Factors& theLocalFactors);
+                             const StepData_Factors& theLocalFactors = StepData_Factors());
  
  //! Warning! C3D is assumed to be a Curve 3D ...
  //! other cases to checked before calling this
@@ -68,11 +67,11 @@ public:
                                        TopoDS_Vertex& V1,
                                        TopoDS_Vertex& V2,
                                        StepToTopoDS_Tool& T,
-                                        const StepData_Factors& theLocalFactors);
+                                        const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT Handle(Geom2d_Curve) MakePCurve (const Handle(StepGeom_Pcurve)& PCU,
                                                   const Handle(Geom_Surface)& ConvSurf,
-                                                   const StepData_Factors& theLocalFactors) const;
+                                                   const StepData_Factors& theLocalFactors = StepData_Factors()) const;
  
  Standard_EXPORT const TopoDS_Shape& Value() const;
  
--- a/src/StepToTopoDS/StepToTopoDS_TranslateEdgeLoop.hxx
+++ b/src/StepToTopoDS/StepToTopoDS_TranslateEdgeLoop.hxx
@@ -49,7 +49,7 @@ public:
                                                 const Standard_Boolean ss,
                                                 StepToTopoDS_Tool& T,
                                                 StepToTopoDS_NMTool& NMTool,
-                                                 const StepData_Factors& theLocalFactors);
+                                                 const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT void Init (const Handle(StepShape_FaceBound)& FB,
                             const TopoDS_Face& F,
@@ -58,7 +58,7 @@ public:
                             const Standard_Boolean ss,
                             StepToTopoDS_Tool& T,
                             StepToTopoDS_NMTool& NMTool,
-                             const StepData_Factors& theLocalFactors);
+                             const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const TopoDS_Shape& Value() const;
  
--- a/src/StepToTopoDS/StepToTopoDS_TranslateFace.hxx
+++ b/src/StepToTopoDS/StepToTopoDS_TranslateFace.hxx
@@ -25,7 +25,6 @@
 #include <TopoDS_Shape.hxx>
 #include <StepToTopoDS_Root.hxx>
 class Poly_Triangulation;
-class StepData_Factors;
 class StepShape_FaceSurface;
 class StepToTopoDS_Tool;
 class StepToTopoDS_NMTool;
@@ -47,36 +46,36 @@ public:
  Standard_EXPORT StepToTopoDS_TranslateFace(const Handle(StepShape_FaceSurface)& FS,
                                             StepToTopoDS_Tool& T,
                                             StepToTopoDS_NMTool& NMTool,
-                                             const StepData_Factors& theLocalFactors);
+                                             const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT StepToTopoDS_TranslateFace(const Handle(StepVisual_TessellatedFace)& theTF, 
                                             StepToTopoDS_Tool& theTool,
                                             StepToTopoDS_NMTool& theNMTool,
                                             const Standard_Boolean theReadTessellatedWhenNoBRepOnly,
                                             Standard_Boolean& theHasGeom,
-                                             const StepData_Factors& theLocalFactors);
+                                             const StepData_Factors& theLocalFactors = StepData_Factors());

  Standard_EXPORT StepToTopoDS_TranslateFace(const Handle(StepVisual_TessellatedSurfaceSet)& theTSS,
                                             StepToTopoDS_Tool& theTool,
                                             StepToTopoDS_NMTool& theNMTool,
-                                             const StepData_Factors& theLocalFactors);
+                                             const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT void Init (const Handle(StepShape_FaceSurface)& FS,
                             StepToTopoDS_Tool& T,
                             StepToTopoDS_NMTool& NMTool,
-                             const StepData_Factors& theLocalFactors);
+                             const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT void Init (const Handle(StepVisual_TessellatedFace)& theTF,
                             StepToTopoDS_Tool& theTool,
                             StepToTopoDS_NMTool& theNMTool,
                             const Standard_Boolean theReadTessellatedWhenNoBRepOnly,
                             Standard_Boolean& theHasGeom,
-                             const StepData_Factors& theLocalFactors);
+                             const StepData_Factors& theLocalFactors = StepData_Factors());

  Standard_EXPORT void Init(const Handle(StepVisual_TessellatedSurfaceSet)& theTSS,
                            StepToTopoDS_Tool& theTool,
                            StepToTopoDS_NMTool& theNMTool,
-                            const StepData_Factors& theLocalFactors);
+                            const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const TopoDS_Shape& Value() const;
  
@@ -85,7 +84,7 @@ public:
 private:

  Handle(Poly_Triangulation) createMesh(const Handle(StepVisual_TessellatedItem)& theTI,
-                                        const StepData_Factors& theLocalFactors) const;
+                                        const StepData_Factors& theLocalFactors = StepData_Factors()) const;

  StepToTopoDS_TranslateFaceError myError;
  TopoDS_Shape myResult;
--- a/src/StepToTopoDS/StepToTopoDS_TranslatePolyLoop.hxx
+++ b/src/StepToTopoDS/StepToTopoDS_TranslatePolyLoop.hxx
@@ -24,7 +24,6 @@
 #include <StepToTopoDS_TranslatePolyLoopError.hxx>
 #include <TopoDS_Shape.hxx>
 #include <StepToTopoDS_Root.hxx>
-class StepData_Factors;
 class StepShape_PolyLoop;
 class StepToTopoDS_Tool;
 class Geom_Surface;
@@ -45,13 +44,13 @@ public:
                                                 StepToTopoDS_Tool& T,
                                                 const Handle(Geom_Surface)& S,
                                                 const TopoDS_Face& F,
-                                                 const StepData_Factors& theLocalFactors);
+                                                 const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT void Init (const Handle(StepShape_PolyLoop)& PL,
                             StepToTopoDS_Tool& T,
                             const Handle(Geom_Surface)& S,
                             const TopoDS_Face& F,
-                             const StepData_Factors& theLocalFactors);
+                             const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const TopoDS_Shape& Value() const;
  
--- a/src/StepToTopoDS/StepToTopoDS_TranslateShell.hxx
+++ b/src/StepToTopoDS/StepToTopoDS_TranslateShell.hxx
@@ -44,7 +44,7 @@ public:
  Standard_EXPORT void Init (const Handle(StepShape_ConnectedFaceSet)& CFS,
                             StepToTopoDS_Tool& T,
                             StepToTopoDS_NMTool& NMTool,
-                             const StepData_Factors& theLocalFactors,
+                             const StepData_Factors& theLocalFactors = StepData_Factors(),
                             const Message_ProgressRange& theProgress = Message_ProgressRange());
  
  Standard_EXPORT void Init (const Handle(StepVisual_TessellatedShell)& theTSh,
@@ -52,7 +52,7 @@ public:
                             StepToTopoDS_NMTool& theNMTool,
                             const Standard_Boolean theReadTessellatedWhenNoBRepOnly,
                             Standard_Boolean& theHasGeom,
-                             const StepData_Factors& theLocalFactors,
+                             const StepData_Factors& theLocalFactors = StepData_Factors(),
                             const Message_ProgressRange& theProgress = Message_ProgressRange());
  
  Standard_EXPORT const TopoDS_Shape& Value() const;
--- a/src/StepToTopoDS/StepToTopoDS_TranslateSolid.hxx
+++ b/src/StepToTopoDS/StepToTopoDS_TranslateSolid.hxx
@@ -44,7 +44,7 @@ public:
                            StepToTopoDS_NMTool& theNMTool,
                            const Standard_Boolean theReadTessellatedWhenNoBRepOnly,
                            Standard_Boolean& theHasGeom,
-                            const StepData_Factors& theLocalFactors,
+                            const StepData_Factors& theLocalFactors = StepData_Factors(),
                            const Message_ProgressRange& theProgress = Message_ProgressRange());

  Standard_EXPORT const TopoDS_Shape& Value() const;
--- a/src/StepToTopoDS/StepToTopoDS_TranslateVertex.hxx
+++ b/src/StepToTopoDS/StepToTopoDS_TranslateVertex.hxx
@@ -24,7 +24,6 @@
 #include <StepToTopoDS_TranslateVertexError.hxx>
 #include <TopoDS_Shape.hxx>
 #include <StepToTopoDS_Root.hxx>
-class StepData_Factors;
 class StepShape_Vertex;
 class StepToTopoDS_Tool;
 class StepToTopoDS_NMTool;
@@ -43,12 +42,12 @@ public:
  Standard_EXPORT StepToTopoDS_TranslateVertex(const Handle(StepShape_Vertex)& V,
                                               StepToTopoDS_Tool& T,
                                               StepToTopoDS_NMTool& NMTool,
-                                               const StepData_Factors& theLocalFactors);
+                                               const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT void Init (const Handle(StepShape_Vertex)& V,
                             StepToTopoDS_Tool& T,
                             StepToTopoDS_NMTool& NMTool,
-                             const StepData_Factors& theLocalFactors);
+                             const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const TopoDS_Shape& Value() const;
  
--- a/src/StepToTopoDS/StepToTopoDS_TranslateVertexLoop.hxx
+++ b/src/StepToTopoDS/StepToTopoDS_TranslateVertexLoop.hxx
@@ -24,7 +24,6 @@
 #include <StepToTopoDS_TranslateVertexLoopError.hxx>
 #include <TopoDS_Shape.hxx>
 #include <StepToTopoDS_Root.hxx>
-class StepData_Factors;
 class StepShape_VertexLoop;
 class StepToTopoDS_Tool;
 class StepToTopoDS_NMTool;
@@ -43,12 +42,12 @@ public:
  Standard_EXPORT StepToTopoDS_TranslateVertexLoop(const Handle(StepShape_VertexLoop)& VL,
                                                   StepToTopoDS_Tool& T,
                                                   StepToTopoDS_NMTool& NMTool,
-                                                   const StepData_Factors& theLocalFactors);
+                                                   const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT void Init (const Handle(StepShape_VertexLoop)& VL,
                             StepToTopoDS_Tool& T,
                             StepToTopoDS_NMTool& NMTool,
-                             const StepData_Factors& theLocalFactors);
+                             const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const TopoDS_Shape& Value() const;
  
--- a/src/TopoDSToStep/TopoDSToStep_Builder.hxx
+++ b/src/TopoDSToStep/TopoDSToStep_Builder.hxx
@@ -25,7 +25,6 @@
 #include <TopoDSToStep_Root.hxx>
 #include <Message_ProgressRange.hxx>

-class StepData_Factors;
 class StepShape_TopologicalRepresentationItem;
 class StepVisual_TessellatedItem;
 class TopoDS_Shape;
@@ -48,14 +47,14 @@ public:
                                       TopoDSToStep_Tool& T,
                                       const Handle(Transfer_FinderProcess)& FP,
                                       const Standard_Integer theTessellatedGeomParam,
-                                       const StepData_Factors& theLocalFactors,
+                                       const StepData_Factors& theLocalFactors = StepData_Factors(),
                                       const Message_ProgressRange& theProgress = Message_ProgressRange());
  
  Standard_EXPORT void Init (const TopoDS_Shape& S,
                             TopoDSToStep_Tool& T,
                             const Handle(Transfer_FinderProcess)& FP,
                             const Standard_Integer theTessellatedGeomParam,
-                             const StepData_Factors& theLocalFactors,
+                             const StepData_Factors& theLocalFactors = StepData_Factors(),
                             const Message_ProgressRange& theProgress = Message_ProgressRange());
  
  Standard_EXPORT TopoDSToStep_BuilderError Error() const;
--- a/src/TopoDSToStep/TopoDSToStep_MakeBrepWithVoids.hxx
+++ b/src/TopoDSToStep/TopoDSToStep_MakeBrepWithVoids.hxx
@@ -44,7 +44,7 @@ public:
  
  Standard_EXPORT TopoDSToStep_MakeBrepWithVoids(const TopoDS_Solid& S,
                                                 const Handle(Transfer_FinderProcess)& FP,
-                                                 const StepData_Factors& theLocalFactors,
+                                                 const StepData_Factors& theLocalFactors = StepData_Factors(),
                                                 const Message_ProgressRange& theProgress = Message_ProgressRange());
  
  Standard_EXPORT const Handle(StepShape_BrepWithVoids)& Value() const;
--- a/src/TopoDSToStep/TopoDSToStep_MakeFacetedBrep.hxx
+++ b/src/TopoDSToStep/TopoDSToStep_MakeFacetedBrep.hxx
@@ -24,7 +24,6 @@
 #include <TopoDSToStep_Root.hxx>
 #include <Message_ProgressRange.hxx>

-class StepData_Factors;
 class StepShape_FacetedBrep;
 class StepVisual_TessellatedItem;
 class TopoDS_Shell;
@@ -46,12 +45,12 @@ public:
  
  Standard_EXPORT TopoDSToStep_MakeFacetedBrep(const TopoDS_Shell& S,
                                               const Handle(Transfer_FinderProcess)& FP,
-                                               const StepData_Factors& theLocalFactors,
+                                               const StepData_Factors& theLocalFactors = StepData_Factors(),
                                               const Message_ProgressRange& theProgress = Message_ProgressRange());
  
  Standard_EXPORT TopoDSToStep_MakeFacetedBrep(const TopoDS_Solid& S,
                                               const Handle(Transfer_FinderProcess)& FP,
-                                               const StepData_Factors& theLocalFactors,
+                                               const StepData_Factors& theLocalFactors = StepData_Factors(),
                                               const Message_ProgressRange& theProgress = Message_ProgressRange());
  
  Standard_EXPORT const Handle(StepShape_FacetedBrep)& Value() const;
--- a/src/TopoDSToStep/TopoDSToStep_MakeFacetedBrepAndBrepWithVoids.hxx
+++ b/src/TopoDSToStep/TopoDSToStep_MakeFacetedBrepAndBrepWithVoids.hxx
@@ -43,7 +43,7 @@ public:
  
  Standard_EXPORT TopoDSToStep_MakeFacetedBrepAndBrepWithVoids(const TopoDS_Solid& S,
                                                               const Handle(Transfer_FinderProcess)& FP,
-                                                               const StepData_Factors& theLocalFactors,
+                                                               const StepData_Factors& theLocalFactors = StepData_Factors(),
                                       const Message_ProgressRange& theProgress = Message_ProgressRange());
  
  Standard_EXPORT const Handle(StepShape_FacetedBrepAndBrepWithVoids)& Value() const;
--- a/src/TopoDSToStep/TopoDSToStep_MakeGeometricCurveSet.hxx
+++ b/src/TopoDSToStep/TopoDSToStep_MakeGeometricCurveSet.hxx
@@ -39,7 +39,7 @@ public:
  
  Standard_EXPORT TopoDSToStep_MakeGeometricCurveSet(const TopoDS_Shape& SH,
                                                     const Handle(Transfer_FinderProcess)& FP,
-                                                     const StepData_Factors& theLocalFactors);
+                                                     const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepShape_GeometricCurveSet)& Value() const;

--- a/src/TopoDSToStep/TopoDSToStep_MakeManifoldSolidBrep.hxx
+++ b/src/TopoDSToStep/TopoDSToStep_MakeManifoldSolidBrep.hxx
@@ -24,7 +24,6 @@
 #include <TopoDSToStep_Root.hxx>
 #include <Message_ProgressRange.hxx>

-class StepData_Factors;
 class StepShape_ManifoldSolidBrep;
 class StepVisual_TessellatedItem;
 class TopoDS_Shell;
@@ -45,12 +44,12 @@ public:
  
  Standard_EXPORT TopoDSToStep_MakeManifoldSolidBrep(const TopoDS_Shell& S,
                                                     const Handle(Transfer_FinderProcess)& FP,
-                                                     const StepData_Factors& theLocalFactors,
+                                                     const StepData_Factors& theLocalFactors = StepData_Factors(),
                                                     const Message_ProgressRange& theProgress = Message_ProgressRange());
  
  Standard_EXPORT TopoDSToStep_MakeManifoldSolidBrep(const TopoDS_Solid& S,
                                                     const Handle(Transfer_FinderProcess)& FP,
-                                                     const StepData_Factors& theLocalFactors,
+                                                     const StepData_Factors& theLocalFactors = StepData_Factors(),
                                                     const Message_ProgressRange& theProgress = Message_ProgressRange());
  
  Standard_EXPORT const Handle(StepShape_ManifoldSolidBrep)& Value() const;
--- a/src/TopoDSToStep/TopoDSToStep_MakeShellBasedSurfaceModel.hxx
+++ b/src/TopoDSToStep/TopoDSToStep_MakeShellBasedSurfaceModel.hxx
@@ -45,17 +45,17 @@ public:
  
  Standard_EXPORT TopoDSToStep_MakeShellBasedSurfaceModel(const TopoDS_Face& F,
                                                          const Handle(Transfer_FinderProcess)& FP,
-                                                          const StepData_Factors& theLocalFactors,
+                                                          const StepData_Factors& theLocalFactors = StepData_Factors(),
                                  const Message_ProgressRange& theProgress = Message_ProgressRange());
  
  Standard_EXPORT TopoDSToStep_MakeShellBasedSurfaceModel(const TopoDS_Shell& S,
                                                          const Handle(Transfer_FinderProcess)& FP,
-                                                          const StepData_Factors& theLocalFactors,
+                                                          const StepData_Factors& theLocalFactors = StepData_Factors(),
                                  const Message_ProgressRange& theProgress = Message_ProgressRange());
  
  Standard_EXPORT TopoDSToStep_MakeShellBasedSurfaceModel(const TopoDS_Solid& S,
                                                          const Handle(Transfer_FinderProcess)& FP,
-                                                          const StepData_Factors& theLocalFactors,
+                                                          const StepData_Factors& theLocalFactors = StepData_Factors(),
                                  const Message_ProgressRange& theProgress = Message_ProgressRange());
  
  Standard_EXPORT const Handle(StepShape_ShellBasedSurfaceModel)& Value() const;
--- a/src/TopoDSToStep/TopoDSToStep_MakeStepEdge.hxx
+++ b/src/TopoDSToStep/TopoDSToStep_MakeStepEdge.hxx
@@ -23,7 +23,6 @@

 #include <TopoDSToStep_MakeEdgeError.hxx>
 #include <TopoDSToStep_Root.hxx>
-class StepData_Factors;
 class StepShape_TopologicalRepresentationItem;
 class TopoDS_Edge;
 class TopoDSToStep_Tool;
@@ -45,12 +44,12 @@ public:
  Standard_EXPORT TopoDSToStep_MakeStepEdge(const TopoDS_Edge& E,
                                            TopoDSToStep_Tool& T,
                                            const Handle(Transfer_FinderProcess)& FP,
-                                            const StepData_Factors& theLocalFactors);
+                                            const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT void Init (const TopoDS_Edge& E,
                             TopoDSToStep_Tool& T,
                             const Handle(Transfer_FinderProcess)& FP,
-                             const StepData_Factors& theLocalFactors);
+                             const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepShape_TopologicalRepresentationItem)& Value() const;
  
--- a/src/TopoDSToStep/TopoDSToStep_MakeStepFace.hxx
+++ b/src/TopoDSToStep/TopoDSToStep_MakeStepFace.hxx
@@ -23,7 +23,6 @@

 #include <TopoDSToStep_MakeFaceError.hxx>
 #include <TopoDSToStep_Root.hxx>
-class StepData_Factors;
 class StepShape_TopologicalRepresentationItem;
 class TopoDS_Face;
 class TopoDSToStep_Tool;
@@ -45,12 +44,12 @@ public:
  Standard_EXPORT TopoDSToStep_MakeStepFace(const TopoDS_Face& F,
                                            TopoDSToStep_Tool& T,
                                            const Handle(Transfer_FinderProcess)& FP,
-                                            const StepData_Factors& theLocalFactors);
+                                            const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT void Init (const TopoDS_Face& F,
                             TopoDSToStep_Tool& T,
                             const Handle(Transfer_FinderProcess)& FP,
-                             const StepData_Factors& theLocalFactors);
+                             const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepShape_TopologicalRepresentationItem)& Value() const;
  
--- a/src/TopoDSToStep/TopoDSToStep_MakeStepVertex.hxx
+++ b/src/TopoDSToStep/TopoDSToStep_MakeStepVertex.hxx
@@ -44,12 +44,12 @@ public:
  Standard_EXPORT TopoDSToStep_MakeStepVertex(const TopoDS_Vertex& V,
                                              TopoDSToStep_Tool& T,
                                              const Handle(Transfer_FinderProcess)& FP,
-                                              const StepData_Factors& theLocalFactors);
+                                              const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT void Init (const TopoDS_Vertex& V,
                             TopoDSToStep_Tool& T,
                             const Handle(Transfer_FinderProcess)& FP,
-                             const StepData_Factors& theLocalFactors);
+                             const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepShape_TopologicalRepresentationItem)& Value() const;
  
--- a/src/TopoDSToStep/TopoDSToStep_MakeStepWire.hxx
+++ b/src/TopoDSToStep/TopoDSToStep_MakeStepWire.hxx
@@ -44,12 +44,12 @@ public:
  Standard_EXPORT TopoDSToStep_MakeStepWire(const TopoDS_Wire& W,
                                            TopoDSToStep_Tool& T,
                                            const Handle(Transfer_FinderProcess)& FP,
-                                            const StepData_Factors& theLocalFactors);
+                                            const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT void Init (const TopoDS_Wire& W,
                             TopoDSToStep_Tool& T,
                             const Handle(Transfer_FinderProcess)& FP,
-                             const StepData_Factors& theLocalFactors);
+                             const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT const Handle(StepShape_TopologicalRepresentationItem)& Value() const;
  
--- a/src/TopoDSToStep/TopoDSToStep_WireframeBuilder.hxx
+++ b/src/TopoDSToStep/TopoDSToStep_WireframeBuilder.hxx
@@ -25,7 +25,6 @@
 #include <TopoDSToStep_BuilderError.hxx>
 #include <TopoDSToStep_Root.hxx>
 #include <MoniTool_DataMapOfShapeTransient.hxx>
-class StepData_Factors;
 class TopoDS_Shape;
 class TopoDSToStep_Tool;
 class Transfer_FinderProcess;
@@ -46,11 +45,11 @@ public:
  
  Standard_EXPORT TopoDSToStep_WireframeBuilder(const TopoDS_Shape& S,
                                                TopoDSToStep_Tool& T,
-                                                const StepData_Factors& theLocalFactors);
+                                                const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT void Init (const TopoDS_Shape& S,
                             TopoDSToStep_Tool& T,
-                             const StepData_Factors& theLocalFactors);
+                             const StepData_Factors& theLocalFactors = StepData_Factors());
  
  Standard_EXPORT TopoDSToStep_BuilderError Error() const;
  
@@ -62,21 +61,21 @@ public:
                                                            const TopoDS_Face& F,
                                                            MoniTool_DataMapOfShapeTransient& M,
                                                            Handle(TColStd_HSequenceOfTransient)& L,
-                                                            const StepData_Factors& theLocalFactors) const;
+                                                            const StepData_Factors& theLocalFactors = StepData_Factors()) const;
  
  //! Extraction of Trimmed Curves from TopoDS_Face for the
  //! Creation of a GeometricallyBoundedWireframeRepresentation
  Standard_EXPORT Standard_Boolean GetTrimmedCurveFromFace (const TopoDS_Face& F,
                                                            MoniTool_DataMapOfShapeTransient& M,
                                                            Handle(TColStd_HSequenceOfTransient)& L,
-                                                            const StepData_Factors& theLocalFactors) const;
+                                                            const StepData_Factors& theLocalFactors = StepData_Factors()) const;
  
  //! Extraction of Trimmed Curves from any TopoDS_Shape for the
  //! Creation of a GeometricallyBoundedWireframeRepresentation
  Standard_EXPORT Standard_Boolean GetTrimmedCurveFromShape (const TopoDS_Shape& S,
                                                             MoniTool_DataMapOfShapeTransient& M,
                                                             Handle(TColStd_HSequenceOfTransient)& L,
-                                                             const StepData_Factors& theLocalFactors) const;
+                                                             const StepData_Factors& theLocalFactors = StepData_Factors()) const;



--- a/tests/bugs/moddata_3/bug33567
+++ b/tests/bugs/moddata_3/bug33567
@@ -0,0 +1,11 @@
+puts "==========================================================="
+puts "0033567: Modeling Data - GeomLib_IsPlanarSurface raises SIGFPE in Release mode"
+puts "==========================================================="
+
+puts "REQUIRED All: Conversion failed"
+
+pload MODELING
+
+restore [locate_data_file bug33567.brep] a
+mksurface s a
+tocanon r s 0.0005
Author	SHA1	Message	Date
vglukhik	cb290cc932	Revert "0033551: Visualization - Add new transform persistence mode to force orthographic projection on object." This reverts commit `0141024df5`.	2024-01-15 15:15:41 +00:00
dpasukhi	cdc6566c3c	0033564: Data Exchange, STEP - Making default unit parameter Updated signature for step makers with units to have default unit as a mm (no scaling)	2024-01-12 17:24:16 +00:00
oan	631a34a05f	0033567: Modeling Data - GeomLib_IsPlanarSurface raises exception SIGFPE Arithmetic Exception in Release mode Add protection against zero-division	2024-01-12 17:23:55 +00:00
rodrlyra	0141024df5	0033551: Visualization - Add new transform persistence mode to force orthographic projection on object. The new transform persistence mode, with flag `Graphic3d_TMF_OrthoPers`, can be combined (bitwise OR operation) with the other persistence modes (2D, Trihedron or Zoom/Rotate Persistence) to make objects be rendered with orthographic projection when it is on a view with perspective projection. If the view already uses orthographic projection, there will be no difference. This feature was implemented to fix ViewCube being distorted when view with perspective projection changes size.	2024-01-05 18:36:54 +00:00
drochalo	5c94806385	0032487: Visualization - synchronize myHasEntityWithPersistence with such entities number Changed myHasEntityWithPersistence to a counter. Renamed variable to myNbEntityWithPersistence. Modified HasEntityWithPersistence() method. Modified logical test in SelectMgr_ViewerSelector::traverseObject.	2023-12-26 08:38:03 +00:00
dpasukhi	f0caf64f54	Update version to 7.8.1 dev	2023-12-26 08:38:01 +00:00