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b315a85dd7
New method for recognizing cylindrical surfaces based on analysis Gaussian field of initial surface is added in class GeomConvert_SurfToAnaSurf
136 lines
5.1 KiB
C++
136 lines
5.1 KiB
C++
// Created: 1998-06-03
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//
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// Copyright (c) 1999-2013 OPEN CASCADE SAS
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//
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// This file is part of commercial software by OPEN CASCADE SAS,
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// furnished in accordance with the terms and conditions of the contract
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// and with the inclusion of this copyright notice.
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// This file or any part thereof may not be provided or otherwise
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// made available to any third party.
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//
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// No ownership title to the software is transferred hereby.
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//
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// OPEN CASCADE SAS makes no representation or warranties with respect to the
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// performance of this software, and specifically disclaims any responsibility
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// for any damages, special or consequential, connected with its use.
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#ifndef _GeomConvert_SurfToAnaSurf_HeaderFile
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#define _GeomConvert_SurfToAnaSurf_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_Real.hxx>
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#include <Standard_Boolean.hxx>
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#include <GeomConvert_ConvType.hxx>
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#include <GeomAbs_SurfaceType.hxx>
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#include <TColgp_HArray1OfXYZ.hxx>
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class Geom_Surface;
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class Geom_SurfaceOfRevolution;
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class Geom_Circle;
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//! Converts a surface to the analitical form with given
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//! precision. Conversion is done only the surface is bspline
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//! of bezier and this can be approximed by some analytical
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//! surface with that precision.
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class GeomConvert_SurfToAnaSurf
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{
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public:
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DEFINE_STANDARD_ALLOC
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Standard_EXPORT GeomConvert_SurfToAnaSurf();
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Standard_EXPORT GeomConvert_SurfToAnaSurf(const Handle(Geom_Surface)& S);
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Standard_EXPORT void Init (const Handle(Geom_Surface)& S);
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void SetConvType(const GeomConvert_ConvType theConvType = GeomConvert_Simplest)
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{
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myConvType = theConvType;
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}
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void SetTarget(const GeomAbs_SurfaceType theSurfType = GeomAbs_Plane)
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{
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myTarget = theSurfType;
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}
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//! Returns maximal deviation of converted surface from the original
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//! one computed by last call to ConvertToAnalytical
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Standard_Real Gap() const
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{
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return myGap;
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}
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//! Tries to convert the Surface to an Analytic form
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//! Returns the result
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//! In case of failure, returns a Null Handle
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//!
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Standard_EXPORT Handle(Geom_Surface) ConvertToAnalytical (const Standard_Real InitialToler);
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Standard_EXPORT Handle(Geom_Surface) ConvertToAnalytical (const Standard_Real InitialToler,
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const Standard_Real Umin, const Standard_Real Umax,
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const Standard_Real Vmin, const Standard_Real Vmax);
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//! Returns true if surfaces is same with the given tolerance
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Standard_EXPORT static Standard_Boolean IsSame (const Handle(Geom_Surface)& S1, const Handle(Geom_Surface)& S2, const Standard_Real tol);
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//! Returns true, if surface is canonical
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Standard_EXPORT static Standard_Boolean IsCanonical (const Handle(Geom_Surface)& S);
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private:
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//!static method for checking surface of revolution
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//!To avoid two-parts cone-like surface
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static void CheckVTrimForRevSurf(const Handle(Geom_SurfaceOfRevolution)& aRevSurf,
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Standard_Real& V1, Standard_Real& V2);
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//!static method to try create cylindrical or conical surface
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static Handle(Geom_Surface) TryCylinerCone(const Handle(Geom_Surface)& theSurf, const Standard_Boolean theVCase,
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const Handle(Geom_Curve)& theUmidiso, const Handle(Geom_Curve)& theVmidiso,
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const Standard_Real theU1, const Standard_Real theU2, const Standard_Real theV1, const Standard_Real theV2,
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const Standard_Real theToler);
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//!static method to try create cylinrical surface using least square method
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static Standard_Boolean GetCylByLS(const Handle(TColgp_HArray1OfXYZ)& thePoints,
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const Standard_Real theTol,
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gp_Ax3& thePos, Standard_Real& theR,
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Standard_Real& theGap);
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//!static method to try create cylinrical surface based on its Gauss field
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static Handle(Geom_Surface) TryCylinderByGaussField(const Handle(Geom_Surface)& theSurf,
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const Standard_Real theU1, const Standard_Real theU2, const Standard_Real theV1, const Standard_Real theV2,
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const Standard_Real theToler, const Standard_Integer theNbU = 20, const Standard_Integer theNbV = 20,
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const Standard_Boolean theLeastSquare = Standard_False);
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//! static method to try create toroidal surface.
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//! In case <isTryUMajor> = Standard_True try to use V isoline radius as minor radaius.
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static Handle(Geom_Surface) TryTorusSphere(const Handle(Geom_Surface)& theSurf,
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const Handle(Geom_Circle)& circle,
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const Handle(Geom_Circle)& otherCircle,
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const Standard_Real Param1,
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const Standard_Real Param2,
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const Standard_Real aParam1ToCrv,
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const Standard_Real aParam2ToCrv,
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const Standard_Real toler,
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const Standard_Boolean isTryUMajor);
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static Standard_Real ComputeGap(const Handle(Geom_Surface)& theSurf,
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const Standard_Real theU1, const Standard_Real theU2, const Standard_Real theV1, const Standard_Real theV2,
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const Handle(Geom_Surface) theNewSurf, const Standard_Real theTol = RealLast());
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protected:
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private:
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Handle(Geom_Surface) mySurf;
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Standard_Real myGap;
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GeomConvert_ConvType myConvType;
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GeomAbs_SurfaceType myTarget;
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};
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#endif // _GeomConvert_SurfToAnaSurf_HeaderFile
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