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0027079: Bad approximation of intersection curves with variable curvature

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1. Method Approx_ComputeLine::Perform is modified: now it contains also recursive calls after new line computation made by new method ApproxInt_MultiLine::MakeMLOneMorePoint.
    2. New method MakeMLOneMorePoint is added to ApproxInt_MultiLine: it builds new sub-line as a part of main line with new point added into the middle of the longest interval between existing points.
    3. Method ShapeConstruct_ProjectCurveOnSurface::ApproxPCurve is modified to avoid regressions: now it takes care of the set of initial points to be enough close to each other so that an interval between two adjacent points is less than half-period of the surface.
    4. Modification in ShapeConstruct_ProjectCurveOnSurface: correction of pcurves of edges which extremities are in the singularities of surface.
This commit is contained in:
jgv
2017-03-20 14:43:32 +03:00
committed by bugmaster
parent 6c060ff2c4
commit 2c26a53d85
29 changed files with 1626 additions and 460 deletions
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52
src/BRepApprox/BRepApprox_TheMultiLineOfApprox.hxx
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@@ -41,6 +41,8 @@ public:
DEFINE_STANDARD_ALLOC
Standard_EXPORT BRepApprox_TheMultiLineOfApprox();
//! The class SvSurfaces is used when the approximation algorithm
//! needs some extra points on the line <line>.
//! A New line is then created which shares the same surfaces and functions.
@@ -51,6 +53,8 @@ public:
const Standard_Address PtrSvSurfaces,
const Standard_Integer NbP3d,
const Standard_Integer NbP2d,
const Standard_Boolean ApproxU1V1,
const Standard_Boolean ApproxU2V2,
const Standard_Real xo,
const Standard_Real yo,
const Standard_Real zo,
@@ -66,6 +70,8 @@ public:
Standard_EXPORT BRepApprox_TheMultiLineOfApprox(const Handle(BRepApprox_ApproxLine)& line,
const Standard_Integer NbP3d,
const Standard_Integer NbP2d,
const Standard_Boolean ApproxU1V1,
const Standard_Boolean ApproxU2V2,
const Standard_Real xo,
const Standard_Real yo,
const Standard_Real zo,
@@ -106,30 +112,42 @@ public:
//! Returns the 3d and 2d points of the multipoint <MPointIndex>.
Standard_EXPORT Standard_Boolean Tangency (const Standard_Integer MPointIndex, TColgp_Array1OfVec& tabV, TColgp_Array1OfVec2d& tabV2d) const;
//! Tries to make a sub-line between <Low> and <High> points of this line
//! by adding <NbPointsToInsert> new points
Standard_EXPORT BRepApprox_TheMultiLineOfApprox MakeMLBetween (const Standard_Integer Low,
const Standard_Integer High,
const Standard_Integer NbPointsToInsert) const;
Standard_EXPORT BRepApprox_TheMultiLineOfApprox MakeMLBetween (const Standard_Integer Low, const Standard_Integer High, const Standard_Integer NbPointsToInsert) const;
//! Tries to make a sub-line between <Low> and <High> points of this line
//! by adding one more point between (indbad-1)-th and indbad-th points
Standard_EXPORT Standard_Boolean MakeMLOneMorePoint (const Standard_Integer Low,
const Standard_Integer High,
const Standard_Integer indbad,
BRepApprox_TheMultiLineOfApprox& OtherLine) const;
//! Dump of the current multi-line.
Standard_EXPORT void Dump() const;
protected:
BRepApprox_TheMultiLineOfApprox operator=(BRepApprox_TheMultiLineOfApprox&);
private:
const Standard_Address PtrOnmySvSurfaces;
const Handle(BRepApprox_ApproxLine) myLine;
const Standard_Integer indicemin;
const Standard_Integer indicemax;
const Standard_Integer nbp3d;
const Standard_Integer nbp2d;
const Standard_Boolean p2donfirst;
const Standard_Real Xo;
const Standard_Real Yo;
const Standard_Real Zo;
const Standard_Real U1o;
const Standard_Real V1o;
const Standard_Real U2o;
const Standard_Real V2o;
Standard_Address PtrOnmySvSurfaces;
Handle(BRepApprox_ApproxLine) myLine;
Standard_Integer indicemin;
Standard_Integer indicemax;
Standard_Integer nbp3d;
Standard_Integer nbp2d;
Standard_Boolean myApproxU1V1;
Standard_Boolean myApproxU2V2;
Standard_Boolean p2donfirst;
Standard_Real Xo;
Standard_Real Yo;
Standard_Real Zo;
Standard_Real U1o;
Standard_Real V1o;
Standard_Real U2o;
Standard_Real V2o;
};