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// Created on: 1994-01-10
// Created by: Yves FRICAUD
// Copyright (c) 1994-1999 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 _Bisector_BisecPC_HeaderFile
#define _Bisector_BisecPC_HeaderFile
#include <Standard.hxx>
#include <Standard_Type.hxx>
#include <gp_Pnt2d.hxx>
#include <Standard_Real.hxx>
#include <TColStd_SequenceOfReal.hxx>
#include <Standard_Integer.hxx>
#include <Standard_Boolean.hxx>
#include <Bisector_Curve.hxx>
#include <GeomAbs_Shape.hxx>
class Geom2d_Curve;
class Standard_DomainError;
class Standard_RangeError;
class gp_Pnt2d;
class Geom2d_Geometry;
class gp_Trsf2d;
class gp_Vec2d;
class Bisector_BisecPC;
DEFINE_STANDARD_HANDLE(Bisector_BisecPC, Bisector_Curve)
//! Provides the bisector between a point and a curve.
//! the curvature on the curve has to be monoton.
//! the point can't be on the curve exept at the extremitys.
class Bisector_BisecPC : public Bisector_Curve
{
public:
Standard_EXPORT Bisector_BisecPC();
//! Constructs the bisector between the point <P> and
//! the curve <Cu>.
//! <Side> = 1. if the bisector curve is on the Left of <Cu>
//! else <Side> = -1.
//! <DistMax> is used to trim the bisector.The distance
//! between the points of the bisector and <Cu> is smaller
//! than <DistMax>.
Standard_EXPORT Bisector_BisecPC(const Handle(Geom2d_Curve)& Cu, const gp_Pnt2d& P, const Standard_Real Side, const Standard_Real DistMax = 500);
//! Constructs the bisector between the point <P> and
//! the curve <Cu> Trimmed by <UMin> and <UMax>
//! <Side> = 1. if the bisector curve is on the Left of <Cu>
//! else <Side> = -1.
//! Warning: the bisector is supposed all over defined between
//! <UMin> and <UMax>.
Standard_EXPORT Bisector_BisecPC(const Handle(Geom2d_Curve)& Cu, const gp_Pnt2d& P, const Standard_Real Side, const Standard_Real UMin, const Standard_Real UMax);
//! Construct the bisector between the point <P> and
//! the curve <Cu>.
//! <Side> = 1. if the bisector curve is on the Left of <Cu>
//! else <Side> = -1.
//! <DistMax> is used to trim the bisector.The distance
//! between the points of the bisector and <Cu> is smaller
//! than <DistMax>.
Standard_EXPORT void Perform (const Handle(Geom2d_Curve)& Cu, const gp_Pnt2d& P, const Standard_Real Side, const Standard_Real DistMax = 500);
//! Returns True if the bisector is extended at start.
Standard_EXPORT Standard_Boolean IsExtendAtStart() const Standard_OVERRIDE;
//! Returns True if the bisector is extended at end.
Standard_EXPORT Standard_Boolean IsExtendAtEnd() const Standard_OVERRIDE;
//! Changes the direction of parametrization of <me>.
//! The orientation of the curve is modified. If the curve
//! is bounded the StartPoint of the initial curve becomes the
//! EndPoint of the reversed curve and the EndPoint of the initial
//! curve becomes the StartPoint of the reversed curve.
Standard_EXPORT void Reverse() Standard_OVERRIDE;
//! Returns the parameter on the reversed curve for
//! the point of parameter U on <me>.
Standard_EXPORT Standard_Real ReversedParameter (const Standard_Real U) const Standard_OVERRIDE;
Standard_EXPORT Handle(Geom2d_Geometry) Copy() const Standard_OVERRIDE;
//! Transformation of a geometric object. This tansformation
//! can be a translation, a rotation, a symmetry, a scaling
//! or a complex transformation obtained by combination of
//! the previous elementaries transformations.
Standard_EXPORT void Transform (const gp_Trsf2d& T) Standard_OVERRIDE;
//! Returns the order of continuity of the curve.
//! Raised if N < 0.
Standard_EXPORT Standard_Boolean IsCN (const Standard_Integer N) const Standard_OVERRIDE;
//! Value of the first parameter.
Standard_EXPORT Standard_Real FirstParameter() const Standard_OVERRIDE;
//! Value of the last parameter.
Standard_EXPORT Standard_Real LastParameter() const Standard_OVERRIDE;
Standard_EXPORT GeomAbs_Shape Continuity() const Standard_OVERRIDE;
//! If necessary, breaks the curve in intervals of
//! continuity <C1>. And returns the number of
//! intervals.
Standard_EXPORT Standard_Integer NbIntervals() const Standard_OVERRIDE;
//! Returns the first parameter of the current
//! interval.
Standard_EXPORT Standard_Real IntervalFirst (const Standard_Integer Index) const Standard_OVERRIDE;
//! Returns the last parameter of the current
//! interval.
Standard_EXPORT Standard_Real IntervalLast (const Standard_Integer Index) const Standard_OVERRIDE;
Standard_EXPORT GeomAbs_Shape IntervalContinuity() const;
Standard_EXPORT Standard_Boolean IsClosed() const Standard_OVERRIDE;
Standard_EXPORT Standard_Boolean IsPeriodic() const Standard_OVERRIDE;
//! Returns the distance between the point of
//! parameter U on <me> and my point or my curve.
Standard_EXPORT Standard_Real Distance (const Standard_Real U) const;
Standard_EXPORT void D0 (const Standard_Real U, gp_Pnt2d& P) const Standard_OVERRIDE;
Standard_EXPORT void D1 (const Standard_Real U, gp_Pnt2d& P, gp_Vec2d& V) const Standard_OVERRIDE;
Standard_EXPORT void D2 (const Standard_Real U, gp_Pnt2d& P, gp_Vec2d& V1, gp_Vec2d& V2) const Standard_OVERRIDE;
Standard_EXPORT void D3 (const Standard_Real U, gp_Pnt2d& P, gp_Vec2d& V1, gp_Vec2d& V2, gp_Vec2d& V3) const Standard_OVERRIDE;
Standard_EXPORT gp_Vec2d DN (const Standard_Real U, const Standard_Integer N) const Standard_OVERRIDE;
Standard_EXPORT void Dump (const Standard_Integer Deep = 0, const Standard_Integer Offset = 0) const;
//! Returns the parameter on the curve1 of the projection
//! of the point of parameter U on <me>.
Standard_EXPORT Standard_Real LinkBisCurve (const Standard_Real U) const;
//! Returns the reciproque of LinkBisCurve.
Standard_EXPORT Standard_Real LinkCurveBis (const Standard_Real U) const;
//! Returns the parameter on <me> corresponding to <P>.
Standard_EXPORT Standard_Real Parameter (const gp_Pnt2d& P) const Standard_OVERRIDE;
//! Returns <True> if the bisector is empty.
Standard_EXPORT Standard_Boolean IsEmpty() const;
DEFINE_STANDARD_RTTIEXT(Bisector_BisecPC,Bisector_Curve)
protected:
private:
Standard_EXPORT void Values (const Standard_Real U, const Standard_Integer N, gp_Pnt2d& P, gp_Vec2d& V1, gp_Vec2d& V2, gp_Vec2d& V3) const;
Standard_EXPORT void Extension (const Standard_Real U, gp_Pnt2d& P, gp_Vec2d& V1, gp_Vec2d& V2, gp_Vec2d& V3) const;
//! Computes the interval where the bisector is defined.
Standard_EXPORT void ComputeIntervals();
Standard_EXPORT void CuspFilter();
Standard_EXPORT Standard_Real SearchBound (const Standard_Real U1, const Standard_Real U2) const;
Standard_EXPORT void Init (const Handle(Geom2d_Curve)& Curve, const gp_Pnt2d& Point, const Standard_Real Sign, const TColStd_SequenceOfReal& StartIntervals, const TColStd_SequenceOfReal& EndIntervals, const Standard_Integer BisInterval, const Standard_Integer CurrentInterval, const Standard_Real ShiftParameter, const Standard_Real DistMax, const Standard_Boolean IsEmpty, const Standard_Boolean IsConvex, const Standard_Boolean ExtensionStart, const Standard_Boolean ExtensionEnd, const gp_Pnt2d& PointStartBis, const gp_Pnt2d& PointEndBis);
Handle(Geom2d_Curve) curve;
gp_Pnt2d point;
Standard_Real sign;
TColStd_SequenceOfReal startIntervals;
TColStd_SequenceOfReal endIntervals;
Standard_Integer bisInterval;
Standard_Integer currentInterval;
Standard_Real shiftParameter;
Standard_Real distMax;
Standard_Boolean isEmpty;
Standard_Boolean isConvex;
Standard_Boolean extensionStart;
Standard_Boolean extensionEnd;
gp_Pnt2d pointStartBis;
gp_Pnt2d pointEndBis;
};
#endif // _Bisector_BisecPC_HeaderFile
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