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occt/src/IntPatch/IntPatch_Intersection.hxx
nbv 7797eb389a 0029496: No intersection curve between faces if starting points are given 
Now, bounded IntPatch_Points are found in case when starting points are used in intersection algorithm. Before the fix, these points were not looked for (even).
2018-02-16 15:07:01 +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 parametric 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 entered 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 entered 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 entered 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 entered 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 (without 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 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 successful.
Standard_Boolean IsDone() const;
//! Returns true if the is no intersection.
Standard_Boolean IsEmpty() const;
//! Returns True if the two patches are considered as
//! entirely 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 GeomAbs_SurfaceType typs1, const GeomAbs_SurfaceType typs2);
//! Flag theIsReqToKeepRLine has been entered 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 GeomAbs_SurfaceType typs1, const GeomAbs_SurfaceType typs2, const Standard_Boolean theIsReqToKeepRLine);
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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