0032241: Mesh - wrong shading display of thrusections [regression since OCCT 7.4.0]

0032422: Mesh - Weird rendering 0029641: Mesher produce 'bad' result for extruded spline with given deviation coefficient Added method BRepMesh_NURBSRangeSplitter::getUndefinedInterval() intended to compute checkpoint parameters for those NURBS surfaces which have no intervals at all. In this case number of poles is used to produce artificial regular grid which can be refined further. Add at least one midpoint for surfaces with one interval and only two poles. Added BRepMesh_ExtrusionRangeSplitter and BRepMesh_UndefinedRangeSplitter derivatives from BRepMesh_NURBSRangeSplitter intended to handle special cases of extrusion surfaces and general surfaces with undefined parameters.
2025-04-03 17:56:21 +03:00 · 2022-09-09 11:29:38 +03:00 · 2022-09-09 11:29:38 +03:00 · c4ea4ca3d1
commit c4ea4ca3d1
parent f3573fb54b
54 changed files with 392 additions and 64 deletions
--- a/src/BRepMesh/BRepMesh_ExtrusionRangeSplitter.cxx
+++ b/src/BRepMesh/BRepMesh_ExtrusionRangeSplitter.cxx
@ -0,0 +1,45 @@
+// Created on: 2022-09-07
+// Copyright (c) 2022 OPEN CASCADE SAS
+// Created by: Oleg AGASHIN
+//
+// This file is part of Open CASCADE Technology software library.
+//
+// This library is free software; you can redistribute it and/or modify it under
+// the terms of the GNU Lesser General Public License version 2.1 as published
+// by the Free Software Foundation, with special exception defined in the file
+// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
+// distribution for complete text of the license and disclaimer of any warranty.
+//
+// Alternatively, this file may be used under the terms of Open CASCADE
+// commercial license or contractual agreement.
+
+#include <BRepMesh_ExtrusionRangeSplitter.hxx>
+
+//=======================================================================
+// Function: getUndefinedIntervalNb
+// Purpose : 
+//=======================================================================
+Standard_Integer BRepMesh_ExtrusionRangeSplitter::getUndefinedIntervalNb(
+  const Handle(Adaptor3d_Surface)& theSurface,
+  const Standard_Boolean           /*isU*/,
+  const GeomAbs_Shape              theContinuity) const
+{
+  // Here we need just a regular grid along dimension with no 
+  // geometrical data regarding intervals like extrusion surface.
+  const Handle(Adaptor3d_Curve) aCurve = theSurface->BasisCurve();
+  Standard_Integer aIntervalsNb = aCurve->NbIntervals(theContinuity);
+  if (aIntervalsNb == 1)
+  {
+    const GeomAbs_CurveType aCurveType = aCurve->GetType();
+    const Standard_Boolean isBSplineCurve =
+      aCurveType == GeomAbs_BezierCurve ||
+      aCurveType == GeomAbs_BSplineCurve;
+
+    if (isBSplineCurve)
+    {
+      aIntervalsNb = aCurve->NbPoles() - 1;
+    }
+  }
+
+  return aIntervalsNb;
+}
--- a/src/BRepMesh/BRepMesh_ExtrusionRangeSplitter.hxx
+++ b/src/BRepMesh/BRepMesh_ExtrusionRangeSplitter.hxx
@ -0,0 +1,45 @@
+// Created on: 2022-09-07
+// Copyright (c) 2022 OPEN CASCADE SAS
+// Created by: Oleg AGASHIN
+//
+// This file is part of Open CASCADE Technology software library.
+//
+// This library is free software; you can redistribute it and/or modify it under
+// the terms of the GNU Lesser General Public License version 2.1 as published
+// by the Free Software Foundation, with special exception defined in the file
+// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
+// distribution for complete text of the license and disclaimer of any warranty.
+//
+// Alternatively, this file may be used under the terms of Open CASCADE
+// commercial license or contractual agreement.
+
+#ifndef _BRepMesh_ExtrusionRangeSplitter_HeaderFile
+#define _BRepMesh_ExtrusionRangeSplitter_HeaderFile
+
+#include <BRepMesh_NURBSRangeSplitter.hxx>
+
+//! Auxiliary class analysing extrusion surface in order to generate internal nodes.
+class BRepMesh_ExtrusionRangeSplitter : public BRepMesh_NURBSRangeSplitter
+{
+public:
+
+  //! Constructor.
+  BRepMesh_ExtrusionRangeSplitter()
+  {
+  }
+
+  //! Destructor.
+  virtual ~BRepMesh_ExtrusionRangeSplitter()
+  {
+  }
+
+protected:
+
+  //! Returns number of intervals computed using available geometrical parameters.
+  Standard_EXPORT virtual Standard_Integer getUndefinedIntervalNb(
+    const Handle(Adaptor3d_Surface)& theSurface,
+    const Standard_Boolean           isU,
+    const GeomAbs_Shape              theContinuity) const Standard_OVERRIDE;
+};
+
+#endif
--- a/src/BRepMesh/BRepMesh_MeshAlgoFactory.cxx
+++ b/src/BRepMesh/BRepMesh_MeshAlgoFactory.cxx
@ -21,6 +21,8 @@
 #include <BRepMesh_DelaunayBaseMeshAlgo.hxx>
 #include <BRepMesh_DelaunayDeflectionControlMeshAlgo.hxx>
 #include <BRepMesh_BoundaryParamsRangeSplitter.hxx>
+#include <BRepMesh_ExtrusionRangeSplitter.hxx>
+#include <BRepMesh_UndefinedRangeSplitter.hxx>

 IMPLEMENT_STANDARD_RTTIEXT(BRepMesh_MeshAlgoFactory, IMeshTools_MeshAlgoFactory)

@ -98,7 +100,18 @@ Handle(IMeshTools_MeshAlgo) BRepMesh_MeshAlgoFactory::GetAlgo(
    return new DeflectionControlMeshAlgo<BRepMesh_BoundaryParamsRangeSplitter>::Type;
    break;

-  default:
+  case GeomAbs_SurfaceOfExtrusion:
+    return new DeflectionControlMeshAlgo<BRepMesh_ExtrusionRangeSplitter>::Type;
+    break;
+
+  case GeomAbs_BezierSurface:
+  case GeomAbs_BSplineSurface:
    return new DeflectionControlMeshAlgo<BRepMesh_NURBSRangeSplitter>::Type;
+    break;
+
+  case GeomAbs_OffsetSurface:
+  case GeomAbs_OtherSurface:
+  default:
+    return new DeflectionControlMeshAlgo<BRepMesh_UndefinedRangeSplitter>::Type;
  }
 }
--- a/src/BRepMesh/BRepMesh_NURBSRangeSplitter.cxx
+++ b/src/BRepMesh/BRepMesh_NURBSRangeSplitter.cxx
@ -392,27 +392,73 @@ Handle(IMeshData::ListOfPnt2d) BRepMesh_NURBSRangeSplitter::GenerateSurfaceNodes
  return aNodes;
 }

+//=======================================================================
+// Function: getUndefinedIntervalNb
+// Purpose : 
+//=======================================================================
+Standard_Integer BRepMesh_NURBSRangeSplitter::getUndefinedIntervalNb(
+  const Handle(Adaptor3d_Surface)& theSurface,
+  const Standard_Boolean           isU,
+  const GeomAbs_Shape              /*theContinuity*/) const
+{
+  return (isU ? theSurface->NbUPoles() : theSurface->NbVPoles()) - 1;
+}
+
+//=======================================================================
+// Function: getUndefinedInterval
+// Purpose : 
+//=======================================================================
+void BRepMesh_NURBSRangeSplitter::getUndefinedInterval(
+  const Handle(Adaptor3d_Surface)&               theSurface,
+  const Standard_Boolean                         isU,
+  const GeomAbs_Shape                            theContinuity,
+  const std::pair<Standard_Real, Standard_Real>& theRange,
+  TColStd_Array1OfReal&                          theIntervals) const
+{
+  Standard_Integer aIntervalsNb = isU ? 
+    theSurface->NbUIntervals(theContinuity) :
+    theSurface->NbVIntervals(theContinuity);
+
+  if (aIntervalsNb == 1)
+  {
+    aIntervalsNb = getUndefinedIntervalNb(theSurface, isU, theContinuity);
+    if (aIntervalsNb > 1)
+    {
+      theIntervals = TColStd_Array1OfReal(1, aIntervalsNb - 1);
+      const Standard_Real aDiff = (theRange.second - theRange.first) / aIntervalsNb;
+      for (Standard_Integer i = theIntervals.Lower(); i <= theIntervals.Upper(); ++i)
+      {
+        theIntervals.SetValue(i, theRange.first + i * aDiff);
+      }
+    }
+  }
+
+  if (theIntervals.IsEmpty())
+  {
+    theIntervals = TColStd_Array1OfReal(1, aIntervalsNb + 1);
+    if (isU)
+    {
+      theSurface->UIntervals(theIntervals, theContinuity);
+    }
+    else
+    {
+      theSurface->VIntervals(theIntervals, theContinuity);
+    }
+  }
+}
+
 //=======================================================================
 // Function: initParameters
 // Purpose : 
 //=======================================================================
 Standard_Boolean BRepMesh_NURBSRangeSplitter::initParameters() const
 {
+  const GeomAbs_Shape aContinuity = GeomAbs_CN;
  const Handle(BRepAdaptor_Surface)& aSurface = GetSurface();

-  const GeomAbs_Shape aContinuity = GeomAbs_CN;
-  const std::pair<Standard_Integer, Standard_Integer> aIntervalsNb(
-    aSurface->NbUIntervals(aContinuity),
-    aSurface->NbVIntervals(aContinuity)
-  );
-
-  TColStd_Array1OfReal aIntervals[2] = {
-    TColStd_Array1OfReal(1, aIntervalsNb.first  + 1),
-    TColStd_Array1OfReal(1, aIntervalsNb.second + 1)
-  };
-
-  aSurface->UIntervals(aIntervals[0], aContinuity);
-  aSurface->VIntervals(aIntervals[1], aContinuity);
+  TColStd_Array1OfReal aIntervals[2];
+  getUndefinedInterval(aSurface, Standard_True,  aContinuity, GetRangeU(), aIntervals[0]);
+  getUndefinedInterval(aSurface, Standard_False, aContinuity, GetRangeV(), aIntervals[1]);

  const Standard_Boolean isSplitIntervals = toSplitIntervals (aSurface->Surface().Surface(), aIntervals);

--- a/src/BRepMesh/BRepMesh_NURBSRangeSplitter.hxx
+++ b/src/BRepMesh/BRepMesh_NURBSRangeSplitter.hxx
@ -49,7 +49,21 @@ protected:
  //! Initializes U and V parameters lists using CN continuity intervals.
  Standard_EXPORT virtual Standard_Boolean initParameters() const;

+  //! Returns number of intervals computed using available geometrical parameters.
+  Standard_EXPORT virtual Standard_Integer getUndefinedIntervalNb(
+    const Handle(Adaptor3d_Surface)& theSurface,
+    const Standard_Boolean           isU,
+    const GeomAbs_Shape              theContinuity) const;
+
 private:
+  //! Tries to compute intervals even for cases with no intervals 
+  //! at all using available geometrical parameters.
+  void getUndefinedInterval(
+    const Handle(Adaptor3d_Surface)&               theSurface,
+    const Standard_Boolean                         isU,
+    const GeomAbs_Shape                            theContinuity,
+    const std::pair<Standard_Real, Standard_Real>& theRange,
+    TColStd_Array1OfReal&                          theIntervals) const;

  //! Computes parameters of filter and applies it to the source parameters.
  Handle(IMeshData::SequenceOfReal) computeGrainAndFilterParameters(
--- a/src/BRepMesh/BRepMesh_UndefinedRangeSplitter.cxx
+++ b/src/BRepMesh/BRepMesh_UndefinedRangeSplitter.cxx
@ -0,0 +1,28 @@
+// Created on: 2022-09-07
+// Copyright (c) 2022 OPEN CASCADE SAS
+// Created by: Oleg AGASHIN
+//
+// This file is part of Open CASCADE Technology software library.
+//
+// This library is free software; you can redistribute it and/or modify it under
+// the terms of the GNU Lesser General Public License version 2.1 as published
+// by the Free Software Foundation, with special exception defined in the file
+// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
+// distribution for complete text of the license and disclaimer of any warranty.
+//
+// Alternatively, this file may be used under the terms of Open CASCADE
+// commercial license or contractual agreement.
+
+#include <BRepMesh_UndefinedRangeSplitter.hxx>
+
+//=======================================================================
+// Function: getUndefinedIntervalNb
+// Purpose : 
+//=======================================================================
+Standard_Integer BRepMesh_UndefinedRangeSplitter::getUndefinedIntervalNb(
+  const Handle(Adaptor3d_Surface)& /*theSurface*/,
+  const Standard_Boolean           /*isU*/,
+  const GeomAbs_Shape              /*theContinuity*/) const
+{
+  return 1;
+}
--- a/src/BRepMesh/BRepMesh_UndefinedRangeSplitter.hxx
+++ b/src/BRepMesh/BRepMesh_UndefinedRangeSplitter.hxx
@ -0,0 +1,46 @@
+// Created on: 2022-09-07
+// Copyright (c) 2022 OPEN CASCADE SAS
+// Created by: Oleg AGASHIN
+//
+// This file is part of Open CASCADE Technology software library.
+//
+// This library is free software; you can redistribute it and/or modify it under
+// the terms of the GNU Lesser General Public License version 2.1 as published
+// by the Free Software Foundation, with special exception defined in the file
+// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
+// distribution for complete text of the license and disclaimer of any warranty.
+//
+// Alternatively, this file may be used under the terms of Open CASCADE
+// commercial license or contractual agreement.
+
+#ifndef _BRepMesh_UndefinedRangeSplitter_HeaderFile
+#define _BRepMesh_UndefinedRangeSplitter_HeaderFile
+
+#include <BRepMesh_NURBSRangeSplitter.hxx>
+
+//! Auxiliary class provides safe value for surfaces that looks like NURBS 
+//! but has no poles or other characteristics.
+class BRepMesh_UndefinedRangeSplitter : public BRepMesh_NURBSRangeSplitter
+{
+public:
+
+  //! Constructor.
+  BRepMesh_UndefinedRangeSplitter()
+  {
+  }
+
+  //! Destructor.
+  virtual ~BRepMesh_UndefinedRangeSplitter()
+  {
+  }
+
+protected:
+
+  //! Returns number of intervals computed using available geometrical parameters.
+  Standard_EXPORT virtual Standard_Integer getUndefinedIntervalNb(
+    const Handle(Adaptor3d_Surface)& theSurface,
+    const Standard_Boolean           isU,
+    const GeomAbs_Shape              theContinuity) const Standard_OVERRIDE;
+};
+
+#endif
--- a/src/BRepMesh/FILES
+++ b/src/BRepMesh/FILES
@ -40,6 +40,8 @@ BRepMesh_EdgeDiscret.hxx
 BRepMesh_EdgeParameterProvider.hxx
 BRepMesh_EdgeTessellationExtractor.cxx
 BRepMesh_EdgeTessellationExtractor.hxx
+BRepMesh_ExtrusionRangeSplitter.cxx
+BRepMesh_ExtrusionRangeSplitter.hxx
 BRepMesh_FaceChecker.cxx
 BRepMesh_FaceChecker.hxx
 BRepMesh_FaceDiscret.cxx
@ -80,6 +82,8 @@ BRepMesh_SphereRangeSplitter.hxx
 BRepMesh_TorusRangeSplitter.cxx
 BRepMesh_TorusRangeSplitter.hxx
 BRepMesh_Triangle.hxx
+BRepMesh_UndefinedRangeSplitter.cxx
+BRepMesh_UndefinedRangeSplitter.hxx
 BRepMesh_UVParamRangeSplitter.hxx
 BRepMesh_Vertex.hxx
 BRepMesh_VertexInspector.hxx
--- a/tests/bugs/iges/buc60820_1
+++ b/tests/bugs/iges/buc60820_1
@ -12,5 +12,5 @@ tclean result
 incmesh result 0.1
 triangles result

-checktrinfo result -tri 638 -nod 564
+checktrinfo result -tri 736 -nod 613
 checkview -display result -2d -path ${imagedir}/${test_image}.png
--- a/tests/bugs/iges/buc60820_2
+++ b/tests/bugs/iges/buc60820_2
@ -13,6 +13,6 @@ vdisplay result
 vsetdispmode result 1
 vfit

-checktrinfo result -tri 200 -nod 215
+checktrinfo result -tri 202 -nod 216

 checkview -display result -2d -path ${imagedir}/${test_image}.png
--- a/tests/bugs/iges/buc60823
+++ b/tests/bugs/iges/buc60823
@ -14,6 +14,6 @@ vdisplay result
 vsetdispmode result 1
 vfit

-checktrinfo result -tri 2722 -nod 2618
+checktrinfo result -tri 3496 -nod 3005

 checkview -display result -2d -path ${imagedir}/${test_image}.png
--- a/tests/bugs/iges/bug306
+++ b/tests/bugs/iges/bug306
@ -20,7 +20,7 @@ vsetdispmode result 1
 vdisplay result
 vfit

-checktrinfo result -tri 5812 -nod 5809
+checktrinfo result -tri 6014 -nod 5910

 checkmaxtol result -ref 0.92213088179312575
 checknbshapes result -shell 1
--- a/tests/bugs/mesh/bug23631
+++ b/tests/bugs/mesh/bug23631
@ -13,7 +13,7 @@ restore [locate_data_file OCC396_f2903.brep] result
 incmesh result 0.01
 triangles result 

-checktrinfo result -tri 57 -nod 59
+checktrinfo result -tri 75 -nod 68

 vinit
 vdisplay result
--- a/tests/bugs/mesh/bug25287
+++ b/tests/bugs/mesh/bug25287
@ -11,7 +11,7 @@ renamevar a_1 result

 incmesh result 0.0001 -a 30 -force_face_def -parallel

-checktrinfo result -tri 12512 -nod 8519 -defl 0.00031502118964205414 -tol_abs_defl 1e-6
+checktrinfo result -tri 14494 -nod 9510 -defl 0.00031502118964205414 -tol_abs_defl 1e-6

 vinit
 vsetdispmode 1
--- a/tests/bugs/mesh/bug27845
+++ b/tests/bugs/mesh/bug27845
@ -14,7 +14,7 @@ vdisplay result
 vfit 
 checkview -screenshot -3d -path ${imagedir}/${test_image}.png

-checktrinfo result -tri 3006 -nod 4360 -defl 3.0544822246414993 -tol_abs_defl 1e-6
+checktrinfo result -tri 3828 -nod 4771 -defl 3.0544822246414993 -tol_abs_defl 1e-6

 set log [tricheck result]
 if { [llength $log] != 0 } {
--- a/tests/bugs/mesh/bug29149
+++ b/tests/bugs/mesh/bug29149
@ -7,7 +7,7 @@ restore [locate_data_file bug29149.brep] result
 tclean result
 incmesh result 0.1

-checktrinfo result -tri 7998 -nod 4931 -defl 1.9852316024615062 -tol_abs_defl 1e-6
+checktrinfo result -tri 8972 -nod 5418 -defl 1.4639409344792007 -tol_abs_defl 1e-6

 # Reduce shape tolerance in order to hard check of mesh quality
 settolerance result 1.0e-7
--- a/tests/bugs/mesh/bug29641
+++ b/tests/bugs/mesh/bug29641
@ -0,0 +1,20 @@
+puts "========"
+puts "0029641: Mesher produce 'bad' result for extruded spline with given deviation coefficient"
+puts "========"
+puts ""
+
+restore [locate_data_file bug29641.brep] result
+tclean result
+
+vinit
+vdefaults -devCoeff 0.0001
+
+vsetdispmode 1
+vdisplay result
+vtop
+vrotate -0.1 0.1 1 0 0 0
+vfit
+
+checktrinfo result -tri 29040 -nod 15358
+
+checkview -screenshot -3d -path ${imagedir}/${test_image}.png
--- a/tests/bugs/mesh/bug30008_1
+++ b/tests/bugs/mesh/bug30008_1
@ -12,6 +12,6 @@ vdisplay result
 vviewparams -scale 8.46292 -proj 0.653203 -0.644806 0.396926 -up -0.0109833 0.51609 0.856464 -at 347.559 1026.89 219.262 -eye 2080.75 -684.022 1272.45

 tricheck result
-checktrinfo result -tri 6978 -nod 4890 -defl 8.4394056682382157 -tol_abs_defl 1e-6
+checktrinfo result -tri 6996 -nod 4899 -defl 8.4394056682382157 -tol_abs_defl 1e-6

 checkview -screenshot -3d -path ${imagedir}/${test_image}.png
--- a/tests/bugs/mesh/bug30167
+++ b/tests/bugs/mesh/bug30167
@ -12,6 +12,6 @@ vdisplay result
 vfit

 tricheck result
-checktrinfo result -tri 3424 -nod 1801 -max_defl 0.55846824898476011 -tol_abs_defl 1.0e-6
+checktrinfo result -tri 2954 -nod 1566 -max_defl 0.66166700094601016 -tol_abs_defl 1.0e-6

 checkview -screenshot -3d -path ${imagedir}/${test_image}.png
--- a/tests/bugs/mesh/bug31251
+++ b/tests/bugs/mesh/bug31251
@ -15,7 +15,7 @@ vdefaults -autoTriang 0

 tclean result
 incmesh result 0.004 -a 14
-checktrinfo result -tri 70556 -nod 39944 -defl 0.24607185555570676 -tol_abs_defl 1e-6
+checktrinfo result -tri 72522 -nod 40927 -defl 0.24607185555570676 -tol_abs_defl 1e-6

 vdisplay result -redisplay
 vfit
@ -23,7 +23,7 @@ checkview -screenshot -3d -path ${imagedir}/${test_image}_default.png

 tclean result
 incmesh result 0.004 -a 14 -force_face_def
-checktrinfo result -tri 292556 -nod 150944 -defl 0.16388671063364907 -tol_abs_defl 1e-6
+checktrinfo result -tri 288022 -nod 148677 -defl 0.16388671063364907 -tol_abs_defl 1e-6

 vdisplay result -redisplay
 vfit
--- a/tests/bugs/mesh/bug32241
+++ b/tests/bugs/mesh/bug32241
@ -0,0 +1,31 @@
+puts "========"
+puts "0032241: Mesh - wrong shading display of thrusections"
+puts "========"
+puts ""
+
+pload MODELING VISUALIZATION
+
+circle c0 0 0 0 0 0 1 30
+circle c1 0 0 0 0 0 1 30
+rotate c1 2000 0 0 0 1 0 15
+circle c2 0 0 0 0 0 1 30
+rotate c2 2000 0 0 0 1 0 30
+circle c3 0 0 0 0 0 1 30
+rotate c3 2000 0 0 0 1 0 45
+circle c4 0 0 0 0 0 1 30
+rotate c4 2000 0 0 0 1 0 60
+mkedge e0 c0
+mkedge e1 c1
+mkedge e2 c2
+mkedge e3 c3
+mkedge e4 c4
+wire w0 e0
+wire w1 e1
+wire w2 e2
+wire w3 e3
+wire w4 e4
+thrusections result issolid w0 w1 w2 w3 w4 
+
+checkview -display result -3d -path ${imagedir}/${test_image}.png
+
+checktrinfo result -tri 2744 -nod 1420
--- a/tests/bugs/mesh/bug32422
+++ b/tests/bugs/mesh/bug32422
@ -0,0 +1,32 @@
+puts "========"
+puts "0032422: Mesh - Weird rendering"
+puts "========"
+puts ""
+
+pload MODELING VISUALIZATION
+
+pbsplinecurve sp1 3 9 0 2 73.198335334976 1 109.22594821708 1 168.29694729401 1 244.58155163942 1 307.53411471698 1 344.2978168401 1 379.98768527731 1 399.75469301329 2 77.34874687409 77.303696496535 0 1 -37.404350826922 66.469283013615 0 1 -38.129049645989 51.427809605917 0 1 45.003598352348 23.760586819334 0 1 -76.009618710498 -14.499612221562 0 1 44.396611605217 -43.851734118626 0 1 119.71153838454 27.656796734959 0 1 38.244406969565 24.98300747794 0 1 68.787902964874 60.998473938995 0 1
+mkedge eg1 sp1
+wire wr1 eg1
+mkplane fc1 wr1
+prism result fc1 0 0 100
+checkshape result
+
+vinit
+vdisplay -dispMode 1 result
+vfit
+
+checktrinfo result -tri 1286 -nod 863
+
+explode result F
+tessellate r result_1 50 50
+
+vdisplay r -dispMode 1
+vaspects r -material STONE -color GREEN
+vlocation r -location 0 0 -100
+vleft
+vfit
+
+checktrinfo r -tri 5000 -nod 2601
+
+checkview -screenshot -3d -path ${imagedir}/${test_image}.png
--- a/tests/bugs/modalg_2/bug264_0
+++ b/tests/bugs/modalg_2/bug264_0
@ -15,6 +15,6 @@ vclear
 isos result 0
 triangles result

-checktrinfo result -tri 10 -nod 12
+checktrinfo result -tri 14 -nod 14
 checkprops result -s 1.3135 
 checkview -display result -3d -path ${imagedir}/${test_image}.png
--- a/tests/bugs/modalg_2/bug292
+++ b/tests/bugs/modalg_2/bug292
@ -19,6 +19,6 @@ vsetdispmode result 1
 isos result 0
 triangles result

-checktrinfo result -tri 10 -nod 12
+checktrinfo result -tri 14 -nod 14
 checkprops result -s 1.3135 
 checkview -display result -3d -path ${imagedir}/${test_image}.png
--- a/tests/bugs/modalg_2/bug358
+++ b/tests/bugs/modalg_2/bug358
@ -6,6 +6,14 @@ puts "========================"
 puts "The helical pipe is not shaded in AISViewer"
 #####

+if { [regexp {Windows} [dversion]] } {
+  set tri_n 19922
+  set nod_n 10395
+} else {
+  set tri_n 19882
+  set nod_n 10375
+}
+  
 restore [locate_data_file OCC358a.brep] f 
 checkshape f

@ -19,7 +27,7 @@ vdisplay result
 vfit
 vsetdispmode result 1

-checktrinfo result -tri 21654 -nod 11261
+checktrinfo result -tri $tri_n -nod $nod_n
 checkprops result -s 24861.2 
 checkshape result
 checkview -display result -2d -path ${imagedir}/${test_image}.png
--- a/tests/bugs/moddata_1/bug15519
+++ b/tests/bugs/moddata_1/bug15519
@ -14,5 +14,5 @@ tclean result
 set Deflection 1.
 catch {incmesh result ${Deflection} }

-checktrinfo result -tri 52956 -nod 46525 -defl 1.2592398118022043 -tol_rel_defl 0.001 -tol_rel_tri 0.001 -tol_rel_nod 0.001
+checktrinfo result -tri 59881 -nod 49987 -defl 1.6213275001104823 -tol_rel_defl 0.001 -tol_rel_tri 0.001 -tol_rel_nod 0.001
 checkview -display result -2d -path ${imagedir}/${test_image}.png
--- a/tests/bugs/moddata_1/bug22759
+++ b/tests/bugs/moddata_1/bug22759
@ -19,7 +19,7 @@ tclean result
 set Deflection 0.001
 incmesh result ${Deflection}

-checktrinfo result -tri 375392 -nod 190670 -defl 0.080199363667810539 -tol_rel_defl 0.001 -tol_rel_tri 0.001 -tol_rel_nod 0.001
+checktrinfo result -tri 326712 -nod 166330 -defl 0.080199363667810539 -tol_rel_defl 0.001 -tol_rel_tri 0.001 -tol_rel_nod 0.001

 vinit
 vdisplay result
--- a/tests/bugs/moddata_2/bug428
+++ b/tests/bugs/moddata_2/bug428
@ -19,5 +19,5 @@ isos result 0
 triangles result
 fit

-checktrinfo result -tri 7863 -nod 6342
+checktrinfo result -tri 7769 -nod 6295
 checkview -screenshot -2d -path ${imagedir}/${test_image}_axo.png
--- a/tests/de_mesh/shape_write_stl/A11
+++ b/tests/de_mesh/shape_write_stl/A11
@ -9,7 +9,7 @@ writestl m $imagedir/${casename}
 readstl res $imagedir/${casename}
 file delete $imagedir/${casename}

-checktrinfo res -tri 58 -nod 31
+checktrinfo res -tri 60 -nod 32

 # Visual check
 checkview -display res -2d -path ${imagedir}/${test_image}.png
--- a/tests/de_mesh/shape_write_stl/A4
+++ b/tests/de_mesh/shape_write_stl/A4
@ -9,7 +9,7 @@ writestl m $imagedir/${casename}
 readstl res $imagedir/${casename}
 file delete $imagedir/${casename}

-checktrinfo res -tri 106 -nod 55
+checktrinfo res -tri 110 -nod 57

 # Visual check
 checkview -display res -2d -path ${imagedir}/${test_image}.png
--- a/tests/hlr/poly_hlr/C12
+++ b/tests/hlr/poly_hlr/C12
@ -1,5 +1,5 @@
 set viewname "vright"
-set length 514.884
+set length 516.649

 testreadstep [locate_data_file bug27341_Adapter_Zylinder_2_CAD.stp] a
 COMPUTE_HLR $viewname $algotype
--- a/tests/hlr/poly_hlr/C14
+++ b/tests/hlr/poly_hlr/C14
@ -1,7 +1,5 @@
-puts "TODO OCC30286 ALL: Error : The length of result shape is 5499.*, expected 5934.34"
-
 set viewname "vright"
-set length 5934.34
+set length 5502.06

 testreadstep [locate_data_file bug27341_Assembly_BILZ_WFL2_1_CAD.stp] a
 COMPUTE_HLR $viewname $algotype
--- a/tests/hlr/poly_hlr/C15
+++ b/tests/hlr/poly_hlr/C15
@ -1,5 +1,5 @@
 set viewname "vright"
-set length 5117.25
+set length 5102.18

 testreadstep [locate_data_file bug27341_Assembly_GMS_Kurz_CAD.stp] a
 COMPUTE_HLR $viewname $algotype
--- a/tests/hlr/poly_hlr/C16
+++ b/tests/hlr/poly_hlr/C16
@ -1,7 +1,5 @@
-puts "TODO OCC30286 ALL: Error : The length of result shape is 1664.\\d+, expected 1664.48"
-
 set viewname "vright"
-set length 1664.48
+set length 1662.85

 testreadstep [locate_data_file bug27341_CCS_Adapter_CAD.stp] a
 COMPUTE_HLR $viewname $algotype
--- a/tests/hlr/poly_hlr/C17
+++ b/tests/hlr/poly_hlr/C17
@ -1,5 +1,5 @@
 set viewname "vright"
-set length 2234.38
+set length 2239.23

 testreadstep [locate_data_file bug27341_CCT_PMK_32_L_o_CAD.stp] a
 COMPUTE_HLR $viewname $algotype
--- a/tests/hlr/poly_hlr/C3
+++ b/tests/hlr/poly_hlr/C3
@ -1,5 +1,5 @@
 set viewname "vright"
-set length 3060.33
+set length 3059.05

 testreadstep [locate_data_file bug27341_570-DWLNL-40-08-L_131LANG_16VERSATZ_DIN.stp] a
 COMPUTE_HLR $viewname $algotype
--- a/tests/hlr/poly_hlr/C7
+++ b/tests/hlr/poly_hlr/C7
@ -1,5 +1,5 @@
 set viewname "vright"
-set length 2257
+set length 2261.22

 testreadstep [locate_data_file bug27341_AIF_Grundhalter_GR1_CAD.stp] a
 COMPUTE_HLR $viewname $algotype
--- a/tests/hlr/poly_hlr/bug23625_1
+++ b/tests/hlr/poly_hlr/bug23625_1
@ -6,7 +6,7 @@ puts ""
 puts "REQUIRED All: Meshing statuses: SelfIntersectingWire Failure"

 set viewname "vfront"
-set length 28388
+set length 26881.1

 restore [locate_data_file bug23625_a1.brep] a

--- a/tests/hlr/poly_hlr/bug23625_2
+++ b/tests/hlr/poly_hlr/bug23625_2
@ -4,7 +4,7 @@ puts "============"
 puts ""

 set viewname "vfront"
-set length 29113.3
+set length 27461.9

 restore [locate_data_file bug23625_a2.brep] a
 COMPUTE_HLR $viewname $algotype
--- a/tests/hlr/poly_hlr/bug23625_3
+++ b/tests/hlr/poly_hlr/bug23625_3
@ -4,7 +4,7 @@ puts "============"
 puts ""

 set viewname "vtop"
-set length 19604.4
+set length 19259.1

 restore [locate_data_file bug23625_a3.brep] a
 COMPUTE_HLR $viewname $algotype
--- a/tests/hlr/poly_hlr/bug27719_102
+++ b/tests/hlr/poly_hlr/bug27719_102
@ -4,7 +4,7 @@ puts "====================================="
 puts ""

 set viewname "vtop"
-set length 5.7955
+set length 5.79554

 restore [locate_data_file bug27719_Extruded.brep] a
 COMPUTE_HLR $viewname $algotype
--- a/tests/hlr/poly_hlr/bug27719_103
+++ b/tests/hlr/poly_hlr/bug27719_103
@ -4,7 +4,7 @@ puts "====================================="
 puts ""

 set viewname "vbottom"
-set length 6.14978
+set length 6.14989

 restore [locate_data_file bug27719_Extruded.brep] a
 COMPUTE_HLR $viewname $algotype
--- a/tests/hlr/poly_hlr/bug27719_104
+++ b/tests/hlr/poly_hlr/bug27719_104
@ -4,7 +4,7 @@ puts "====================================="
 puts ""

 set viewname "vfront"
-set length 7.4551
+set length 7.45513

 restore [locate_data_file bug27719_Extruded.brep] a
 COMPUTE_HLR $viewname $algotype
--- a/tests/hlr/poly_hlr/bug27719_105
+++ b/tests/hlr/poly_hlr/bug27719_105
@ -4,7 +4,7 @@ puts "====================================="
 puts ""

 set viewname "vback"
-set length 7.48367
+set length 7.48374

 restore [locate_data_file bug27719_Extruded.brep] a
 COMPUTE_HLR $viewname $algotype
--- a/tests/mesh/data/advanced/B8
+++ b/tests/mesh/data/advanced/B8
@ -2,5 +2,5 @@ set TheFileName OCC357.brep
 if { [string compare $command "shading"] == 0 } {
  #set bug_area "OCC22687"
  set max_rel_tol_diff 0.25
-  set rel_tol 1.7957583466671934
+  set rel_tol 1.299910771524823
 }
--- a/tests/mesh/data/standard/L2
+++ b/tests/mesh/data/standard/L2
@ -1,5 +1,5 @@
 set TheFileName shading_101.brep
 if { [string compare $command "shading"] != 0 } {
   set max_rel_tol_diff 0.1
-   set rel_tol 1.2162834127672983
+   set rel_tol 0.3408446823303861
 }
--- a/tests/mesh/data/standard/M8
+++ b/tests/mesh/data/standard/M8
@ -3,7 +3,7 @@ set max_rel_tol_diff 1
 if { [string compare $command "shading"] == 0 } {
  set rel_tol 0.241
 } else {
-  set rel_tol 6.376860334255998
+  set rel_tol 3.2394842919345677
 }
 #set bug_freenodes "M8"
 #set nbfreenodes(All) 1
--- a/tests/mesh/data/standard/Q3
+++ b/tests/mesh/data/standard/Q3
@ -1,5 +1,5 @@
 set TheFileName shading_147.brep
 if { [string compare $command "shading"] == 0 } {
-  set rel_tol 0.8791879462861206
+  set rel_tol 0.8369721827353692
  set max_rel_tol_diff 0.001
 }
--- a/tests/mesh/data/standard/U2
+++ b/tests/mesh/data/standard/U2
@ -1,9 +1,9 @@
 set TheFileName shading_wrongshape_004.brep
 ###set bug_area "OCC22687"
 if { [string compare $command "shading"] == 0 } {
-  set rel_tol 0.06073194250400039
+  set rel_tol 0.07204699336483454
 } else {
-  set rel_tol 0.003702162749171707
+  set rel_tol 0.008767384551980804
 }
 set max_rel_tol_diff 0.001
 ###set bug_withouttri "OCC22687"
--- a/tests/mesh/data/standard/W6
+++ b/tests/mesh/data/standard/W6
@ -1,6 +1,6 @@
 set TheFileName shading_wrongshape_026.brep
 if { [string compare $command "shading"] == 0 } {
-  set rel_tol 0.06893312870606805
+  set rel_tol 0.08526389274308782
 } else {
  set rel_tol 0.0020125629706199506
 }
--- a/tests/mesh/data/standard/W7
+++ b/tests/mesh/data/standard/W7
@ -7,5 +7,5 @@ if { [string compare $command "shading"] != 0 } {
  set rel_tol 0.19838215623500813
 } else {
  set max_rel_tol_diff 0.01
-  set rel_tol 0.12561722204279838
+  set rel_tol 0.18116134043436827
 }
--- a/tests/mesh/data/standard/X1
+++ b/tests/mesh/data/standard/X1
@ -6,8 +6,8 @@ set TheFileName shading_wrongshape_030.brep
 set bug_cross "OCC22687"
 set nbcross(All) 4
 if { [string compare $command "shading"] == 0 } {
-  set rel_tol 0.5456843734442471
+  set rel_tol 0.5225697108844659
 } else {
-  set rel_tol 0.1783852555846471
+  set rel_tol 0.1856053577754922
 }
 set max_rel_tol_diff 0.001
--- a/tests/perf/mesh/bug26965
+++ b/tests/perf/mesh/bug26965
@ -16,4 +16,4 @@ dchrono h
 vfit
 checkview -screenshot -3d -path ${imagedir}/${test_image}.png

-checktrinfo a -tri 14764 -nod 7587 -defl 0.29573935005082458 -tol_abs_defl 1e-6
+checktrinfo a -tri 15564 -nod 7987 -defl 0.25696012112765304 -tol_abs_defl 1e-6
--- a/tests/v3d/bugs/bug288_5
+++ b/tests/v3d/bugs/bug288_5
@ -14,5 +14,5 @@ isos result 0
 triangles result
 vfit

-checktrinfo result -tri 8048 -nod 8247
+checktrinfo result -tri 8130 -nod 8288
 vdump $imagedir/${casename}.png