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130 lines
4.1 KiB
C++
130 lines
4.1 KiB
C++
// Created on: 1999-06-22
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// Created by: Roman LYGIN
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// Copyright (c) 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 _ShapeExtend_ComplexCurve_HeaderFile
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#define _ShapeExtend_ComplexCurve_HeaderFile
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#include <Standard.hxx>
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#include <Standard_Type.hxx>
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#include <Geom_Curve.hxx>
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#include <Standard_Integer.hxx>
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#include <GeomAbs_Shape.hxx>
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class gp_Trsf;
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class gp_Pnt;
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class gp_Vec;
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class ShapeExtend_ComplexCurve;
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DEFINE_STANDARD_HANDLE(ShapeExtend_ComplexCurve, Geom_Curve)
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//! Defines a curve which consists of several segments.
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//! Implements basic interface to it.
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class ShapeExtend_ComplexCurve : public Geom_Curve
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{
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public:
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//! Returns number of curves
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Standard_EXPORT virtual Standard_Integer NbCurves() const = 0;
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//! Returns curve given by its index
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Standard_EXPORT virtual const Handle(Geom_Curve)& Curve (const Standard_Integer index) const = 0;
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//! Returns number of the curve for the given parameter U
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//! and local paramete r UOut for the found curve
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Standard_EXPORT virtual Standard_Integer LocateParameter (const Standard_Real U, Standard_Real& UOut) const = 0;
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//! Returns global parameter for the whole curve according
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//! to the segment and local parameter on it
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Standard_EXPORT virtual Standard_Real LocalToGlobal (const Standard_Integer index, const Standard_Real Ulocal) const = 0;
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//! Applies transformation to each curve
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Standard_EXPORT virtual void Transform (const gp_Trsf& T) Standard_OVERRIDE;
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//! Returns 1 - U
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virtual Standard_Real ReversedParameter (const Standard_Real U) const Standard_OVERRIDE;
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//! Returns 0
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virtual Standard_Real FirstParameter() const Standard_OVERRIDE;
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//! Returns 1
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virtual Standard_Real LastParameter() const Standard_OVERRIDE;
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//! Returns True if the curve is closed
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virtual Standard_Boolean IsClosed() const Standard_OVERRIDE;
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//! Returns False
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virtual Standard_Boolean IsPeriodic() const Standard_OVERRIDE;
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//! Returns GeomAbs_C0
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virtual GeomAbs_Shape Continuity() const Standard_OVERRIDE;
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//! Returns False if N > 0
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virtual Standard_Boolean IsCN (const Standard_Integer N) const Standard_OVERRIDE;
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//! Returns point at parameter U.
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//! Finds appropriate curve and local parameter on it.
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Standard_EXPORT virtual void D0 (const Standard_Real U, gp_Pnt& P) const Standard_OVERRIDE;
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Standard_EXPORT virtual void D1 (const Standard_Real U, gp_Pnt& P, gp_Vec& V1) const Standard_OVERRIDE;
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Standard_EXPORT virtual void D2 (const Standard_Real U, gp_Pnt& P, gp_Vec& V1, gp_Vec& V2) const Standard_OVERRIDE;
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Standard_EXPORT virtual void D3 (const Standard_Real U, gp_Pnt& P, gp_Vec& V1, gp_Vec& V2, gp_Vec& V3) const Standard_OVERRIDE;
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Standard_EXPORT virtual gp_Vec DN (const Standard_Real U, const Standard_Integer N) const Standard_OVERRIDE;
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//! Returns scale factor for recomputing of deviatives.
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Standard_EXPORT virtual Standard_Real GetScaleFactor (const Standard_Integer ind) const = 0;
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//! Checks geometrical connectivity of the curves, including
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//! closure (sets fields myClosed)
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Standard_EXPORT Standard_Boolean CheckConnectivity (const Standard_Real Preci);
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DEFINE_STANDARD_RTTIEXT(ShapeExtend_ComplexCurve,Geom_Curve)
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protected:
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Standard_EXPORT ShapeExtend_ComplexCurve();
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//! Transform the derivative according to its order
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Standard_EXPORT void TransformDN (gp_Vec& V, const Standard_Integer ind, const Standard_Integer N) const;
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Standard_Boolean myClosed;
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private:
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};
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#include <ShapeExtend_ComplexCurve.lxx>
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#endif // _ShapeExtend_ComplexCurve_HeaderFile
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