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occt/src/IntPatch/IntPatch_Intersection.hxx
nbv d30895f5da 0023178: Intersection of cylinders fails to produce results 
1. Unification of trimmed and not-trimmed cylinders processing (IntPatch_Intersection::GeomGeomPerfomTrimSurf() method has been removed).
2. Interface of IntPatch_ImpImpIntersection::Perform(...) method has been changed.
3. Now, WLine purging is forbidden for Geom-Geom-Intersection.
4. Bnd_Range class has been created. See Bnd_Range.hxx for detail information.
5. Algorithm of AddBoundaryPoint function has been improved in order to obtain intersection points in both boundaries (VFirst and VLast of every surface).
6. Earlier, method Geom2dConvert::ConcatG1(...) increased resulted B-spline degree (in case of not succession of previous iteration). Now increased value has been limited by Geom2d_BSplineCurve::MaxDegree() value (max degree = 25).
7. Algorithm of B-spline closure definition has been changed in the methods Geom2dConvert::C0BSplineToC1BSplineCurve(...) and Geom2dConvert::C0BSplineToArrayOfC1BSplineCurve(...).

Creation of test case for this issue.
Adjusting test cases according to their new behavior.

Small correction in the code according to KGV's remark.
2016-10-07 13:37:31 +03:00

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// Created on: 1993-01-21
// Created by: Jacques GOUSSARD
// Copyright (c) 1993-1999 Matra Datavision
// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// 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 _IntPatch_Intersection_HeaderFile
#define _IntPatch_Intersection_HeaderFile
#include <Standard.hxx>
#include <Standard_DefineAlloc.hxx>
#include <Standard_Handle.hxx>
#include <Standard_Boolean.hxx>
#include <IntPatch_SequenceOfPoint.hxx>
#include <IntPatch_SequenceOfLine.hxx>
#include <Standard_Real.hxx>
#include <IntSurf_ListOfPntOn2S.hxx>
#include <GeomAbs_SurfaceType.hxx>
#include <Standard_Integer.hxx>
class StdFail_NotDone;
class Standard_OutOfRange;
class Standard_DomainError;
class Standard_ConstructionError;
class Adaptor3d_HSurface;
class Adaptor3d_TopolTool;
class IntPatch_Point;
class IntPatch_Line;
//! This class provides a generic algorithm to intersect
//! 2 surfaces.
class IntPatch_Intersection
{
public:
DEFINE_STANDARD_ALLOC
Standard_EXPORT IntPatch_Intersection();
Standard_EXPORT IntPatch_Intersection(const Handle(Adaptor3d_HSurface)& S1, const Handle(Adaptor3d_TopolTool)& D1, const Handle(Adaptor3d_HSurface)& S2, const Handle(Adaptor3d_TopolTool)& D2, const Standard_Real TolArc, const Standard_Real TolTang);
Standard_EXPORT IntPatch_Intersection(const Handle(Adaptor3d_HSurface)& S1, const Handle(Adaptor3d_TopolTool)& D1, const Standard_Real TolArc, const Standard_Real TolTang);
//! Set the tolerances used by the algorithms:
//! --- Implicit - Parametric
//! --- Parametric - Parametric
//! --- Implicit - Implicit
//!
//! TolArc is used to compute the intersections
//! between the restrictions of a surface and a
//! walking line.
//!
//! TolTang is used to compute the points on a walking
//! line, and in geometric algorithms.
//!
//! Fleche is a parameter used in the walking
//! algorithms to provide small curvatures on a line.
//!
//! UVMaxStep is a parameter used in the walking
//! algorithms to compute the distance between to
//! points in their respective parametrtic spaces.
Standard_EXPORT void SetTolerances (const Standard_Real TolArc, const Standard_Real TolTang, const Standard_Real UVMaxStep, const Standard_Real Fleche);
//! Flag theIsReqToKeepRLine has been enterred only for
//! compatibility with TopOpeBRep package. It shall be deleted
//! after deleting TopOpeBRep.
//! When intersection result returns IntPatch_RLine and another
//! IntPatch_Line (not restriction) we (in case of theIsReqToKeepRLine==TRUE)
//! will always keep both lines even if they are coincided.
//! Flag theIsReqToPostWLProc has been enterred only for
//! compatibility with TopOpeBRep package. It shall be deleted
//! after deleting TopOpeBRep.
//! If theIsReqToPostWLProc == FALSE, then we will work with Walking-line
//! obtained after intersection algorithm directly (wothout any post-processing).
Standard_EXPORT void Perform (const Handle(Adaptor3d_HSurface)& S1, const Handle(Adaptor3d_TopolTool)& D1, const Handle(Adaptor3d_HSurface)& S2, const Handle(Adaptor3d_TopolTool)& D2, const Standard_Real TolArc, const Standard_Real TolTang, const Standard_Boolean isGeomInt = Standard_True, const Standard_Boolean theIsReqToKeepRLine = Standard_False, const Standard_Boolean theIsReqToPostWLProc = Standard_True);
//! If isGeomInt == Standard_False, then method
//! Param-Param intersection will be used.
//! Flag theIsReqToKeepRLine has been enterred only for
//! compatibility with TopOpeBRep package. It shall be deleted
//! after deleting TopOpeBRep.
//! When intersection result returns IntPatch_RLine and another
//! IntPatch_Line (not restriction) we (in case of theIsReqToKeepRLine==TRUE)
//! will always keep both lines even if they are coincided.
//! Flag theIsReqToPostWLProc has been enterred only for
//! compatibility with TopOpeBRep package. It shall be deleted
//! after deleting TopOpeBRep.
//! If theIsReqToPostWLProc == FALSE, then we will work with Walking-line
//! obtained after intersection algorithm directly (wothout any post-processing).
Standard_EXPORT void Perform (const Handle(Adaptor3d_HSurface)& S1, const Handle(Adaptor3d_TopolTool)& D1, const Handle(Adaptor3d_HSurface)& S2, const Handle(Adaptor3d_TopolTool)& D2, const Standard_Real TolArc, const Standard_Real TolTang, IntSurf_ListOfPntOn2S& LOfPnts, const Standard_Boolean RestrictLine = Standard_True, const Standard_Boolean isGeomInt = Standard_True, const Standard_Boolean theIsReqToKeepRLine = Standard_False, const Standard_Boolean theIsReqToPostWLProc = Standard_True);
//! Perform with start point
Standard_EXPORT void Perform (const Handle(Adaptor3d_HSurface)& S1, const Handle(Adaptor3d_TopolTool)& D1, const Handle(Adaptor3d_HSurface)& S2, const Handle(Adaptor3d_TopolTool)& D2, const Standard_Real U1, const Standard_Real V1, const Standard_Real U2, const Standard_Real V2, const Standard_Real TolArc, const Standard_Real TolTang);
//! Uses for finding self-intersected surfaces.
Standard_EXPORT void Perform (const Handle(Adaptor3d_HSurface)& S1, const Handle(Adaptor3d_TopolTool)& D1, const Standard_Real TolArc, const Standard_Real TolTang);
//! Returns True if the calculus was succesfull.
Standard_Boolean IsDone() const;
//! Returns true if the is no intersection.
Standard_Boolean IsEmpty() const;
//! Returns True if the two patches are considered as
//! entierly tangent, i-e every restriction arc of one
//! patch is inside the geometric base of the other patch.
Standard_Boolean TangentFaces() const;
//! Returns True when the TangentFaces returns True and the
//! normal vectors evaluated at a point on the first and the
//! second surface are opposite.
//! The exception DomainError is raised if TangentFaces
//! returns False.
Standard_Boolean OppositeFaces() const;
//! Returns the number of "single" points.
Standard_Integer NbPnts() const;
//! Returns the point of range Index.
//! An exception is raised if Index<=0 or Index>NbPnt.
const IntPatch_Point& Point (const Standard_Integer Index) const;
//! Returns the number of intersection lines.
Standard_Integer NbLines() const;
//! Returns the line of range Index.
//! An exception is raised if Index<=0 or Index>NbLine.
const Handle(IntPatch_Line)& Line (const Standard_Integer Index) const;
Standard_EXPORT const IntPatch_SequenceOfLine& SequenceOfLine() const;
//! Dump of each result line.
//! Mode for more accurate dumps.
Standard_EXPORT void Dump (const Standard_Integer Mode, const Handle(Adaptor3d_HSurface)& S1, const Handle(Adaptor3d_TopolTool)& D1, const Handle(Adaptor3d_HSurface)& S2, const Handle(Adaptor3d_TopolTool)& D2) const;
protected:
private:
Standard_EXPORT void ParamParamPerfom (const Handle(Adaptor3d_HSurface)& S1, const Handle(Adaptor3d_TopolTool)& D1, const Handle(Adaptor3d_HSurface)& S2, const Handle(Adaptor3d_TopolTool)& D2, const Standard_Real TolArc, const Standard_Real TolTang, IntSurf_ListOfPntOn2S& LOfPnts, const Standard_Boolean RestrictLine, const GeomAbs_SurfaceType typs1, const GeomAbs_SurfaceType typs2);
//! Flag theIsReqToKeepRLine has been enterred only for
//! compatibility with TopOpeBRep package. It shall be deleted
//! after deleting TopOpeBRep.
//! When intersection result returns IntPatch_RLine and another
//! IntPatch_Line (not restriction) we (in case of theIsReqToKeepRLine==TRUE)
//! will always keep both lines even if they are coincided.
Standard_EXPORT void GeomGeomPerfom (const Handle(Adaptor3d_HSurface)& S1, const Handle(Adaptor3d_TopolTool)& D1, const Handle(Adaptor3d_HSurface)& S2, const Handle(Adaptor3d_TopolTool)& D2, const Standard_Real TolArc, const Standard_Real TolTang, IntSurf_ListOfPntOn2S& LOfPnts, const Standard_Boolean RestrictLine, const GeomAbs_SurfaceType typs1, const GeomAbs_SurfaceType typs2, const Standard_Boolean theIsReqToKeepRLine = Standard_False);
Standard_EXPORT void GeomParamPerfom (const Handle(Adaptor3d_HSurface)& S1, const Handle(Adaptor3d_TopolTool)& D1, const Handle(Adaptor3d_HSurface)& S2, const Handle(Adaptor3d_TopolTool)& D2, const Standard_Boolean isNotAnalitical, const GeomAbs_SurfaceType typs1, const GeomAbs_SurfaceType typs2);
Standard_Boolean done;
Standard_Boolean empt;
Standard_Boolean tgte;
Standard_Boolean oppo;
IntPatch_SequenceOfPoint spnt;
IntPatch_SequenceOfLine slin;
Standard_Real myTolArc;
Standard_Real myTolTang;
Standard_Real myUVMaxStep;
Standard_Real myFleche;
Standard_Boolean myIsStartPnt;
Standard_Real myU1Start;
Standard_Real myV1Start;
Standard_Real myU2Start;
Standard_Real myV2Start;
};
#include <IntPatch_Intersection.lxx>
#endif // _IntPatch_Intersection_HeaderFile
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