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0033394: Modeling Algorithms - Wrong usage of BRepClass_FaceClassifier with 3d tolerance

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Added the function Tolerance2d().
Now 2d-tolerance is used instead of 3d-tolerance where it's necessary.
This commit is contained in:
astromko 2024-04-03 11:52:56 +01:00
parent b78ccf1f9b
commit 9151e65161
6 changed files with 47 additions and 17 deletions
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13
src/BRep/BRep_Tool.cxx
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@ -19,6 +19,7 @@
#include <BRep_CurveOnClosedSurface.hxx>
#include <BRep_CurveOnSurface.hxx>
#include <BRep_CurveRepresentation.hxx>
#include <BRep_GCurve.hxx>
#include <BRep_Polygon3D.hxx>
#include <BRep_PolygonOnSurface.hxx>
#include <BRep_PolygonOnTriangulation.hxx>
@ -26,6 +27,7 @@
#include <BRep_TFace.hxx>
#include <BRep_Tool.hxx>
#include <BRep_TVertex.hxx>
#include <BRepAdaptor_Surface.hxx>
#include <ElSLib.hxx>
#include <Geom2d_Curve.hxx>
#include <Geom2d_TrimmedCurve.hxx>
@ -61,7 +63,6 @@
#include <TopoDS_Vertex.hxx>
#include <TopTools_MapOfShape.hxx>
#include <TopTools_ShapeMapHasher.hxx>
#include <BRep_GCurve.hxx>
//modified by NIZNHY-PKV Fri Oct 17 14:13:29 2008f
static
@ -1672,3 +1673,13 @@ Standard_Real BRep_Tool::MaxTolerance (const TopoDS_Shape& theShape,
return aTol;
}
//=======================================================================
//function : Tolerance2d
//purpose :
//=======================================================================
Standard_Real BRep_Tool::Tolerance2d(const TopoDS_Face& theFace, const Standard_Real theTolerance)
{
BRepAdaptor_Surface aAdaptorSurface(theFace);
return Max(aAdaptorSurface.UResolution(theTolerance), aAdaptorSurface.VResolution(theTolerance));
}

5
src/BRep/BRep_Tool.hxx
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@ -297,6 +297,11 @@ public:
//@param theSubShape - Search subshape, only Face, Edge or Vertex are supported.
Standard_EXPORT static Standard_Real MaxTolerance (const TopoDS_Shape& theShape, const TopAbs_ShapeEnum theSubShape);
//! Returns the 2d tolerance.
//@param theFace - the input face to find 2d tolerance
//@param theTolerance - the input tolerance to calculate 2d tolerance.
Standard_EXPORT static Standard_Real Tolerance2d(const TopoDS_Face& theFace, const Standard_Real theTolerance);
};
#endif // _BRep_Tool_HeaderFile

21
src/BRepExtrema/BRepExtrema_DistanceSS.cxx
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@ -441,7 +441,6 @@ static void PERFORM_C0(const TopoDS_Edge& S1, const TopoDS_Edge& S2,
gp_Pnt P1, Pt;
Standard_Integer i, ii;
BRepClass_FaceClassifier classifier;
for (i = 1; i <= arrInter.Length(); i++)
{
const Standard_Real aParameter = arrInter(i);
@ -772,7 +771,7 @@ void BRepExtrema_DistanceSS::Perform(const TopoDS_Vertex& theS1,
Standard_Real U, V;
gp_Pnt Pt, P1 = BRep_Tool::Pnt(theS1);
BRepClass_FaceClassifier classifier;
const Standard_Real tol = BRep_Tool::Tolerance(theS2);
const Standard_Real tol2d = BRep_Tool::Tolerance2d(theS2, BRep_Tool::Tolerance(theS2));
for (i = 1; i <= NbExtrema; i++)
{
@ -784,7 +783,7 @@ void BRepExtrema_DistanceSS::Perform(const TopoDS_Vertex& theS1,
// Check if the parameter does not correspond to a vertex
Ext.Parameter(i, U, V);
const gp_Pnt2d PUV(U, V);
classifier.Perform(theS2, PUV, tol);
classifier.Perform(theS2, PUV, tol2d);
if (classifier.State() == TopAbs_IN)
{
if (myDstRef > Dstmin)
@ -922,7 +921,7 @@ void BRepExtrema_DistanceSS::Perform (const TopoDS_Edge& theS1, const TopoDS_Fac
if ((Dstmin < myDstRef - myEps) || (fabs(Dstmin - myDstRef) < myEps))
{
Standard_Real U, V;
const Standard_Real tol = BRep_Tool::Tolerance(theS2);
const Standard_Real tol2d = BRep_Tool::Tolerance2d(theS2, BRep_Tool::Tolerance(theS2));
gp_Pnt Pt1, Pt2;
const Standard_Real epsP = Precision::PConfusion();
@ -941,7 +940,7 @@ void BRepExtrema_DistanceSS::Perform (const TopoDS_Edge& theS1, const TopoDS_Fac
{
Ext.ParameterOnFace(i, U, V);
const gp_Pnt2d PUV(U, V);
classifier.Perform(theS2, PUV, tol);
classifier.Perform(theS2, PUV, tol2d);
if (classifier.State() == TopAbs_IN)
{
if (myDstRef > Dstmin)
@ -974,7 +973,7 @@ void BRepExtrema_DistanceSS::Perform (const TopoDS_Edge& theS1, const TopoDS_Fac
gp_Pnt Pt;
Standard_Real U, V;
const Standard_Real tol = BRep_Tool::Tolerance(theS2);
const Standard_Real tol2d = BRep_Tool::Tolerance2d(theS2, BRep_Tool::Tolerance(theS2));
Standard_Integer i;
for (i = 1; i <= arrInter.Length(); i++)
@ -1007,7 +1006,7 @@ void BRepExtrema_DistanceSS::Perform (const TopoDS_Edge& theS1, const TopoDS_Fac
// Check if the parameter does not correspond to a vertex
ExtPF.Parameter(ii, U, V);
const gp_Pnt2d PUV(U, V);
classifier.Perform(theS2, PUV, tol);
classifier.Perform(theS2, PUV, tol2d);
if (classifier.State() == TopAbs_IN)
{
if (myDstRef > Dstmin)
@ -1062,8 +1061,8 @@ void BRepExtrema_DistanceSS::Perform (const TopoDS_Face& theS1,
Dstmin = sqrt(Dstmin);
if ((Dstmin < myDstRef - myEps) || (fabs(Dstmin - myDstRef) < myEps))
{
const Standard_Real tol1 = BRep_Tool::Tolerance(theS1);
const Standard_Real tol2 = BRep_Tool::Tolerance(theS2);
const Standard_Real tol2d1 = BRep_Tool::Tolerance2d(theS1, BRep_Tool::Tolerance(theS1));
const Standard_Real tol2d2 = BRep_Tool::Tolerance2d(theS2, BRep_Tool::Tolerance(theS2));
gp_Pnt Pt1, Pt2;
gp_Pnt2d PUV;
@ -1081,12 +1080,12 @@ void BRepExtrema_DistanceSS::Perform (const TopoDS_Face& theS1,
// Check if the parameter does not correspond to a vertex
Ext.ParameterOnFace1(i, U1, V1);
PUV.SetCoord(U1, V1);
classifier.Perform(theS1, PUV, tol1);
classifier.Perform(theS1, PUV, tol2d1);
if (classifier.State() == TopAbs_IN)
{
Ext.ParameterOnFace2(i, U2, V2);
PUV.SetCoord(U2, V2);
classifier.Perform(theS2, PUV, tol2);
classifier.Perform(theS2, PUV, tol2d2);
if (classifier.State() == TopAbs_IN)
{
if (myDstRef > Dstmin)

7
src/BRepExtrema/BRepExtrema_ExtFF.cxx
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@ -89,7 +89,7 @@ void BRepExtrema_ExtFF::Perform(const TopoDS_Face& F1, const TopoDS_Face& F2)
{
// Exploration of points and classification
BRepClass_FaceClassifier classifier;
const Standard_Real Tol2 = BRep_Tool::Tolerance(F2);
const Standard_Real Tol2d2 = BRep_Tool::Tolerance2d(F2, BRep_Tool::Tolerance(F2));
Extrema_POnSurf P1, P2;
Standard_Integer i;
@ -98,13 +98,14 @@ void BRepExtrema_ExtFF::Perform(const TopoDS_Face& F1, const TopoDS_Face& F2)
myExtSS.Points(i, P1, P2);
P1.Parameter(U1, U2);
const gp_Pnt2d Puv1(U1, U2);
classifier.Perform(F1, Puv1, Tol1);
const Standard_Real Tol2d1 = BRep_Tool::Tolerance2d(F1, Tol1);
classifier.Perform(F1, Puv1, Tol2d1);
const TopAbs_State state1 = classifier.State();
if (state1 == TopAbs_ON || state1 == TopAbs_IN)
{
P2.Parameter(U1, U2);
const gp_Pnt2d Puv2(U1, U2);
classifier.Perform(F2, Puv2, Tol2);
classifier.Perform(F2, Puv2, Tol2d2);
const TopAbs_State state2 = classifier.State();
if (state2 == TopAbs_ON || state2 == TopAbs_IN)
{

4
src/BRepExtrema/BRepExtrema_ExtPF.cxx
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@ -85,12 +85,12 @@ void BRepExtrema_ExtPF::Perform(const TopoDS_Vertex& TheVertex, const TopoDS_Fac
{
BRepClass_FaceClassifier classifier;
Standard_Real U1, U2;
const Standard_Real Tol = BRep_Tool::Tolerance(TheFace);
const Standard_Real Tol2d = BRep_Tool::Tolerance2d(TheFace, BRep_Tool::Tolerance(TheFace));
for (Standard_Integer i = 1; i <= myExtPS.NbExt(); i++)
{
myExtPS.Point(i).Parameter(U1, U2);
const gp_Pnt2d Puv(U1, U2);
classifier.Perform(TheFace, Puv, Tol);
classifier.Perform(TheFace, Puv, Tol2d);
const TopAbs_State state = classifier.State();
if(state == TopAbs_ON || state == TopAbs_IN)
{

14
tests/bugs/modalg_8/bug33394 Normal file
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@ -0,0 +1,14 @@
puts "========================"
puts "0033394: Modeling Algorithms - Wrong usage of BRepClass_FaceClassifier with 3d tolerance"
puts "========================"
puts ""
pload MODELING
restore [locate_data_file bug33394.brep] fb
vertex vert 1016.3915670000133 17180 -5689.3758362036951
distmini aa fb vert
set tolerance [checkmaxtol aa]
if { [dval aa_val] > ${tolerance} } {
puts "Error: The distance should be 0"
}