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e146ef9a93
1. VRange of intersection curve has been limited. As result, too oblong intersection curve(s) will be never returned. 2. Now, purger algorithm is not called for lines obtained by Geom-Geom intersection method. 3. New statuses are entered in IntPatch_ImpImpIntersection class. It makes intersection algorithm more informative and flexible for using. 4. Method IntPatch_ImpImpIntersection::GetStatus() has been created. Tuning of test case bugs modalg_6/bug26894
156 lines
5.1 KiB
C++
156 lines
5.1 KiB
C++
// Created on: 1992-05-07
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// Created by: Jacques GOUSSARD
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// Copyright (c) 1992-1999 Matra Datavision
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// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifndef _IntPatch_ImpImpIntersection_HeaderFile
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#define _IntPatch_ImpImpIntersection_HeaderFile
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#include <Standard.hxx>
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#include <Standard_DefineAlloc.hxx>
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#include <Standard_Handle.hxx>
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#include <Standard_Boolean.hxx>
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#include <IntPatch_SequenceOfPoint.hxx>
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#include <IntPatch_SequenceOfLine.hxx>
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#include <IntPatch_TheSOnBounds.hxx>
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#include <Standard_Real.hxx>
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#include <Standard_Integer.hxx>
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class StdFail_NotDone;
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class Standard_OutOfRange;
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class Standard_DomainError;
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class Standard_ConstructionError;
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class Adaptor3d_HSurface;
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class Adaptor3d_TopolTool;
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class IntPatch_Point;
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class IntPatch_Line;
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//! Implementation of the intersection between two
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//! quadric patches : Plane, Cone, Cylinder or Sphere.
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class IntPatch_ImpImpIntersection
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{
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public:
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DEFINE_STANDARD_ALLOC
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enum IntStatus
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{
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//! OK. Good intersection result.
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IntStatus_OK,
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//! Intersection curve is too long (e.g. as in the bug #26894).
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//! We cannot provide precise computation of value and
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//! derivatives of this curve having used floating-point model
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//! determined by IEEE 754 standard. As result, OCCT algorithms
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//! cannot work with that curve correctly.
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IntStatus_InfiniteSectionCurve,
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//! Algorithm cannot finish correctly.
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IntStatus_Fail
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};
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Standard_EXPORT IntPatch_ImpImpIntersection();
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//! Flag theIsReqToKeepRLine has been entered only for
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//! compatibility with TopOpeBRep package. It shall be deleted
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//! after deleting TopOpeBRep.
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//! When intersection result returns IntPatch_RLine and another
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//! IntPatch_Line (not restriction) we (in case of theIsReqToKeepRLine==TRUE)
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//! will always keep both lines even if they are coincided.
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Standard_EXPORT IntPatch_ImpImpIntersection(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 theIsReqToKeepRLine = Standard_False);
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//! Flag theIsReqToKeepRLine has been entered only for
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//! compatibility with TopOpeBRep package. It shall be deleted
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//! after deleting TopOpeBRep.
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//! When intersection result returns IntPatch_RLine and another
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//! IntPatch_Line (not restriction) we (in case of theIsReqToKeepRLine==TRUE)
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//! will always keep both lines even if they are coincided.
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Standard_EXPORT void Perform (const Handle(Adaptor3d_HSurface)& S1,
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const Handle(Adaptor3d_TopolTool)& D1,
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const Handle(Adaptor3d_HSurface)& S2,
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const Handle(Adaptor3d_TopolTool)& D2,
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const Standard_Real TolArc,
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const Standard_Real TolTang,
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const Standard_Boolean theIsReqToKeepRLine =
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Standard_False);
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//! Returns True if the calculus was successful.
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Standard_Boolean IsDone() const;
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//! Returns status
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IntStatus GetStatus() const;
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//! Returns true if the is no intersection.
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Standard_Boolean IsEmpty() const;
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//! Returns True if the two patches are considered as
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//! entirely tangent, i.e every restriction arc of one
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//! patch is inside the geometric base of the other patch.
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Standard_Boolean TangentFaces() const;
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//! Returns True when the TangentFaces returns True and the
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//! normal vectors evaluated at a point on the first and the
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//! second surface are opposite.
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//! The exception DomainError is raised if TangentFaces
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//! returns False.
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Standard_Boolean OppositeFaces() const;
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//! Returns the number of "single" points.
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Standard_Integer NbPnts() const;
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//! Returns the point of range Index.
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//! An exception is raised if Index<=0 or Index>NbPnt.
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const IntPatch_Point& Point (const Standard_Integer Index) const;
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//! Returns the number of intersection lines.
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Standard_Integer NbLines() const;
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//! Returns the line of range Index.
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//! An exception is raised if Index<=0 or Index>NbLine.
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const Handle(IntPatch_Line)& Line (const Standard_Integer Index) const;
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protected:
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private:
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IntStatus myDone;
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Standard_Boolean empt;
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Standard_Boolean tgte;
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Standard_Boolean oppo;
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IntPatch_SequenceOfPoint spnt;
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IntPatch_SequenceOfLine slin;
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IntPatch_TheSOnBounds solrst;
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};
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#include <IntPatch_ImpImpIntersection.lxx>
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#endif // _IntPatch_ImpImpIntersection_HeaderFile
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