1 // Created on: 1994-01-10
2 // Created by: Yves FRICAUD
3 // Copyright (c) 1994-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
8 // This library is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU Lesser General Public License version 2.1 as published
10 // by the Free Software Foundation, with special exception defined in the file
11 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
12 // distribution for complete text of the license and disclaimer of any warranty.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
17 #ifndef _Bisector_BisecCC_HeaderFile
18 #define _Bisector_BisecCC_HeaderFile
20 #include <Standard.hxx>
22 #include <TColStd_SequenceOfReal.hxx>
23 #include <Standard_Integer.hxx>
24 #include <Bisector_PolyBis.hxx>
25 #include <gp_Pnt2d.hxx>
26 #include <Bisector_Curve.hxx>
27 #include <GeomAbs_Shape.hxx>
29 class Geom2d_Geometry;
34 class Bisector_BisecCC;
35 DEFINE_STANDARD_HANDLE(Bisector_BisecCC, Bisector_Curve)
37 //! Construct the bisector between two curves.
38 //! The curves can intersect only in their extremities.
39 class Bisector_BisecCC : public Bisector_Curve
45 Standard_EXPORT Bisector_BisecCC();
47 //! Constructs the bisector between the curves <Cu1>
50 //! <Side1> (resp <Side2>) = 1 if the
51 //! bisector curve is on the left of <Cu1> (resp <Cu2>)
52 //! else <Side1> (resp <Side2>) = -1.
54 //! the Bisector is trimmed by the Point <Origin>.
55 //! <DistMax> is used to trim the bisector.The distance
56 //! between the points of the bisector and <Cu> is smaller
58 Standard_EXPORT Bisector_BisecCC(const Handle(Geom2d_Curve)& Cu1, const Handle(Geom2d_Curve)& Cu2, const Standard_Real Side1, const Standard_Real Side2, const gp_Pnt2d& Origin, const Standard_Real DistMax = 500);
60 //! Computes the bisector between the curves <Cu1>
63 //! <Side1> (resp <Side2>) = 1 if the
64 //! bisector curve is on the left of <Cu1> (resp <Cu2>)
65 //! else <Side1> (resp <Side2>) = -1.
67 //! the Bisector is trimmed by the Point <Origin>.
69 //! <DistMax> is used to trim the bisector.The distance
70 //! between the points of the bisector and <Cu> is smaller
72 Standard_EXPORT void Perform (const Handle(Geom2d_Curve)& Cu1, const Handle(Geom2d_Curve)& Cu2, const Standard_Real Side1, const Standard_Real Side2, const gp_Pnt2d& Origin, const Standard_Real DistMax = 500);
74 Standard_EXPORT Standard_Boolean IsExtendAtStart() const Standard_OVERRIDE;
76 Standard_EXPORT Standard_Boolean IsExtendAtEnd() const Standard_OVERRIDE;
78 Standard_EXPORT void Reverse() Standard_OVERRIDE;
80 Standard_EXPORT Standard_Real ReversedParameter (const Standard_Real U) const Standard_OVERRIDE;
82 //! Returns the order of continuity of the curve.
84 Standard_EXPORT Standard_Boolean IsCN (const Standard_Integer N) const Standard_OVERRIDE;
86 //! The parameter on <me> is linked to the parameter
87 //! on the first curve. This method creates the same bisector
88 //! where the curves are inversed.
89 Standard_EXPORT Handle(Bisector_BisecCC) ChangeGuide() const;
91 Standard_EXPORT Handle(Geom2d_Geometry) Copy() const Standard_OVERRIDE;
94 //! Transformation of a geometric object. This tansformation
95 //! can be a translation, a rotation, a symmetry, a scaling
96 //! or a complex transformation obtained by combination of
97 //! the previous elementaries transformations.
98 Standard_EXPORT void Transform (const gp_Trsf2d& T) Standard_OVERRIDE;
100 Standard_EXPORT Standard_Real FirstParameter() const Standard_OVERRIDE;
102 Standard_EXPORT Standard_Real LastParameter() const Standard_OVERRIDE;
104 Standard_EXPORT GeomAbs_Shape Continuity() const Standard_OVERRIDE;
106 //! If necessary, breaks the curve in intervals of
107 //! continuity <C1>. And returns the number of
109 Standard_EXPORT Standard_Integer NbIntervals() const Standard_OVERRIDE;
111 //! Returns the first parameter of the current
113 Standard_EXPORT Standard_Real IntervalFirst (const Standard_Integer Index) const Standard_OVERRIDE;
115 //! Returns the last parameter of the current
117 Standard_EXPORT Standard_Real IntervalLast (const Standard_Integer Index) const Standard_OVERRIDE;
119 Standard_EXPORT GeomAbs_Shape IntervalContinuity() const;
121 Standard_EXPORT Standard_Boolean IsClosed() const Standard_OVERRIDE;
123 Standard_EXPORT Standard_Boolean IsPeriodic() const Standard_OVERRIDE;
125 //! Returns the point of parameter U.
126 //! Computes the distance between the current point and
127 //! the two curves I separate.
128 //! Computes the parameters on each curve corresponding
129 //! of the projection of the current point.
130 Standard_EXPORT gp_Pnt2d ValueAndDist (const Standard_Real U, Standard_Real& U1, Standard_Real& U2, Standard_Real& Distance) const;
132 //! Returns the point of parameter U.
133 //! Computes the distance between the current point and
134 //! the two curves I separate.
135 //! Computes the parameters on each curve corresponding
136 //! of the projection of the current point.
137 Standard_EXPORT gp_Pnt2d ValueByInt (const Standard_Real U, Standard_Real& U1, Standard_Real& U2, Standard_Real& Distance) const;
139 Standard_EXPORT void D0 (const Standard_Real U, gp_Pnt2d& P) const Standard_OVERRIDE;
141 Standard_EXPORT void D1 (const Standard_Real U, gp_Pnt2d& P, gp_Vec2d& V) const Standard_OVERRIDE;
143 Standard_EXPORT void D2 (const Standard_Real U, gp_Pnt2d& P, gp_Vec2d& V1, gp_Vec2d& V2) const Standard_OVERRIDE;
145 Standard_EXPORT void D3 (const Standard_Real U, gp_Pnt2d& P, gp_Vec2d& V1, gp_Vec2d& V2, gp_Vec2d& V3) const Standard_OVERRIDE;
147 Standard_EXPORT gp_Vec2d DN (const Standard_Real U, const Standard_Integer N) const Standard_OVERRIDE;
149 Standard_EXPORT Standard_Boolean IsEmpty() const;
151 //! Returns the parameter on the curve1 of the projection
152 //! of the point of parameter U on <me>.
153 Standard_EXPORT Standard_Real LinkBisCurve (const Standard_Real U) const;
155 //! Returns the reciproque of LinkBisCurve.
156 Standard_EXPORT Standard_Real LinkCurveBis (const Standard_Real U) const;
158 Standard_EXPORT Standard_Real Parameter (const gp_Pnt2d& P) const Standard_OVERRIDE;
160 Standard_EXPORT Handle(Geom2d_Curve) Curve (const Standard_Integer IndCurve) const;
162 Standard_EXPORT const Bisector_PolyBis& Polygon() const;
164 Standard_EXPORT void Dump (const Standard_Integer Deep = 0, const Standard_Integer Offset = 0) const;
169 DEFINE_STANDARD_RTTIEXT(Bisector_BisecCC,Bisector_Curve)
179 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;
181 Standard_EXPORT void SupLastParameter();
183 Standard_EXPORT gp_Pnt2d Extension (const Standard_Real U, Standard_Real& U1, Standard_Real& U2, Standard_Real& Dist, gp_Vec2d& T1) const;
185 Standard_EXPORT Standard_Real SearchBound (const Standard_Real U1, const Standard_Real U2) const;
187 Standard_EXPORT void ComputePointEnd();
189 Standard_EXPORT void Curve (const Standard_Integer Index, const Handle(Geom2d_Curve)& C);
191 Standard_EXPORT void Sign (const Standard_Integer Index, const Standard_Real Sign);
193 Standard_EXPORT void Polygon (const Bisector_PolyBis& Poly);
195 Standard_EXPORT void DistMax (const Standard_Real DistMax);
197 Standard_EXPORT void IsConvex (const Standard_Integer Index, const Standard_Boolean IsConvex);
199 Standard_EXPORT void IsEmpty (const Standard_Boolean IsEmpty);
201 Standard_EXPORT void ExtensionStart (const Standard_Boolean ExtensionStart);
203 Standard_EXPORT void ExtensionEnd (const Standard_Boolean ExtensionEnd);
205 Standard_EXPORT void PointStart (const gp_Pnt2d& Point);
207 Standard_EXPORT void PointEnd (const gp_Pnt2d& Point);
209 Standard_EXPORT void StartIntervals (const TColStd_SequenceOfReal& StartIntervals);
211 Standard_EXPORT void EndIntervals (const TColStd_SequenceOfReal& EndIntervals);
213 Standard_EXPORT void FirstParameter (const Standard_Real U1);
215 Standard_EXPORT void LastParameter (const Standard_Real U1);
217 Handle(Geom2d_Curve) curve1;
218 Handle(Geom2d_Curve) curve2;
221 TColStd_SequenceOfReal startIntervals;
222 TColStd_SequenceOfReal endIntervals;
223 Standard_Integer currentInterval;
224 Bisector_PolyBis myPolygon;
225 Standard_Real shiftParameter;
226 Standard_Real distMax;
227 Standard_Boolean isEmpty;
228 Standard_Boolean isConvex1;
229 Standard_Boolean isConvex2;
230 Standard_Boolean extensionStart;
231 Standard_Boolean extensionEnd;
244 #endif // _Bisector_BisecCC_HeaderFile