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>
21 #include <Standard_Type.hxx>
23 #include <Standard_Real.hxx>
24 #include <TColStd_SequenceOfReal.hxx>
25 #include <Standard_Integer.hxx>
26 #include <Bisector_PolyBis.hxx>
27 #include <Standard_Boolean.hxx>
28 #include <gp_Pnt2d.hxx>
29 #include <Bisector_Curve.hxx>
30 #include <GeomAbs_Shape.hxx>
32 class Standard_DomainError;
33 class Standard_RangeError;
35 class Geom2d_Geometry;
38 class Bisector_PolyBis;
41 class Bisector_BisecCC;
42 DEFINE_STANDARD_HANDLE(Bisector_BisecCC, Bisector_Curve)
44 //! Construct the bisector between two curves.
45 //! The curves can intersect only in their extremities.
46 class Bisector_BisecCC : public Bisector_Curve
52 Standard_EXPORT Bisector_BisecCC();
54 //! Constructs the bisector between the curves <Cu1>
57 //! <Side1> (resp <Side2>) = 1 if the
58 //! bisector curve is on the left of <Cu1> (resp <Cu2>)
59 //! else <Side1> (resp <Side2>) = -1.
61 //! the Bisector is trimmed by the Point <Origin>.
62 //! <DistMax> is used to trim the bisector.The distance
63 //! between the points of the bisector and <Cu> is smaller
65 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);
67 //! Computes the bisector between the curves <Cu1>
70 //! <Side1> (resp <Side2>) = 1 if the
71 //! bisector curve is on the left of <Cu1> (resp <Cu2>)
72 //! else <Side1> (resp <Side2>) = -1.
74 //! the Bisector is trimmed by the Point <Origin>.
76 //! <DistMax> is used to trim the bisector.The distance
77 //! between the points of the bisector and <Cu> is smaller
79 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);
81 Standard_EXPORT Standard_Boolean IsExtendAtStart() const Standard_OVERRIDE;
83 Standard_EXPORT Standard_Boolean IsExtendAtEnd() const Standard_OVERRIDE;
85 Standard_EXPORT void Reverse() Standard_OVERRIDE;
87 Standard_EXPORT Standard_Real ReversedParameter (const Standard_Real U) const Standard_OVERRIDE;
89 //! Returns the order of continuity of the curve.
91 Standard_EXPORT Standard_Boolean IsCN (const Standard_Integer N) const Standard_OVERRIDE;
93 //! The parameter on <me> is linked to the parameter
94 //! on the first curve. This method creates the same bisector
95 //! where the curves are inversed.
96 Standard_EXPORT Handle(Bisector_BisecCC) ChangeGuide() const;
98 Standard_EXPORT Handle(Geom2d_Geometry) Copy() const Standard_OVERRIDE;
101 //! Transformation of a geometric object. This tansformation
102 //! can be a translation, a rotation, a symmetry, a scaling
103 //! or a complex transformation obtained by combination of
104 //! the previous elementaries transformations.
105 Standard_EXPORT void Transform (const gp_Trsf2d& T) Standard_OVERRIDE;
107 Standard_EXPORT Standard_Real FirstParameter() const Standard_OVERRIDE;
109 Standard_EXPORT Standard_Real LastParameter() const Standard_OVERRIDE;
111 Standard_EXPORT GeomAbs_Shape Continuity() const Standard_OVERRIDE;
113 //! If necessary, breaks the curve in intervals of
114 //! continuity <C1>. And returns the number of
116 Standard_EXPORT Standard_Integer NbIntervals() const Standard_OVERRIDE;
118 //! Returns the first parameter of the current
120 Standard_EXPORT Standard_Real IntervalFirst (const Standard_Integer Index) const Standard_OVERRIDE;
122 //! Returns the last parameter of the current
124 Standard_EXPORT Standard_Real IntervalLast (const Standard_Integer Index) const Standard_OVERRIDE;
126 Standard_EXPORT GeomAbs_Shape IntervalContinuity() const;
128 Standard_EXPORT Standard_Boolean IsClosed() const Standard_OVERRIDE;
130 Standard_EXPORT Standard_Boolean IsPeriodic() const Standard_OVERRIDE;
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 ValueAndDist (const Standard_Real U, Standard_Real& U1, Standard_Real& U2, Standard_Real& Distance) const;
139 //! Returns the point of parameter U.
140 //! Computes the distance between the current point and
141 //! the two curves I separate.
142 //! Computes the parameters on each curve corresponding
143 //! of the projection of the current point.
144 Standard_EXPORT gp_Pnt2d ValueByInt (const Standard_Real U, Standard_Real& U1, Standard_Real& U2, Standard_Real& Distance) const;
146 Standard_EXPORT void D0 (const Standard_Real U, gp_Pnt2d& P) const Standard_OVERRIDE;
148 Standard_EXPORT void D1 (const Standard_Real U, gp_Pnt2d& P, gp_Vec2d& V) const Standard_OVERRIDE;
150 Standard_EXPORT void D2 (const Standard_Real U, gp_Pnt2d& P, gp_Vec2d& V1, gp_Vec2d& V2) const Standard_OVERRIDE;
152 Standard_EXPORT void D3 (const Standard_Real U, gp_Pnt2d& P, gp_Vec2d& V1, gp_Vec2d& V2, gp_Vec2d& V3) const Standard_OVERRIDE;
154 Standard_EXPORT gp_Vec2d DN (const Standard_Real U, const Standard_Integer N) const Standard_OVERRIDE;
156 Standard_EXPORT Standard_Boolean IsEmpty() const;
158 //! Returns the parameter on the curve1 of the projection
159 //! of the point of parameter U on <me>.
160 Standard_EXPORT Standard_Real LinkBisCurve (const Standard_Real U) const;
162 //! Returns the reciproque of LinkBisCurve.
163 Standard_EXPORT Standard_Real LinkCurveBis (const Standard_Real U) const;
165 Standard_EXPORT Standard_Real Parameter (const gp_Pnt2d& P) const Standard_OVERRIDE;
167 Standard_EXPORT Handle(Geom2d_Curve) Curve (const Standard_Integer IndCurve) const;
169 Standard_EXPORT const Bisector_PolyBis& Polygon() const;
171 Standard_EXPORT void Dump (const Standard_Integer Deep = 0, const Standard_Integer Offset = 0) const;
176 DEFINE_STANDARD_RTTIEXT(Bisector_BisecCC,Bisector_Curve)
186 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;
188 Standard_EXPORT void SupLastParameter();
190 Standard_EXPORT gp_Pnt2d Extension (const Standard_Real U, Standard_Real& U1, Standard_Real& U2, Standard_Real& Dist, gp_Vec2d& T1) const;
192 Standard_EXPORT Standard_Real SearchBound (const Standard_Real U1, const Standard_Real U2) const;
194 Standard_EXPORT void ComputePointEnd();
196 Standard_EXPORT void Curve (const Standard_Integer Index, const Handle(Geom2d_Curve)& C);
198 Standard_EXPORT void Sign (const Standard_Integer Index, const Standard_Real Sign);
200 Standard_EXPORT void Polygon (const Bisector_PolyBis& Poly);
202 Standard_EXPORT void DistMax (const Standard_Real DistMax);
204 Standard_EXPORT void IsConvex (const Standard_Integer Index, const Standard_Boolean IsConvex);
206 Standard_EXPORT void IsEmpty (const Standard_Boolean IsEmpty);
208 Standard_EXPORT void ExtensionStart (const Standard_Boolean ExtensionStart);
210 Standard_EXPORT void ExtensionEnd (const Standard_Boolean ExtensionEnd);
212 Standard_EXPORT void PointStart (const gp_Pnt2d& Point);
214 Standard_EXPORT void PointEnd (const gp_Pnt2d& Point);
216 Standard_EXPORT void StartIntervals (const TColStd_SequenceOfReal& StartIntervals);
218 Standard_EXPORT void EndIntervals (const TColStd_SequenceOfReal& EndIntervals);
220 Standard_EXPORT void FirstParameter (const Standard_Real U1);
222 Standard_EXPORT void LastParameter (const Standard_Real U1);
224 Handle(Geom2d_Curve) curve1;
225 Handle(Geom2d_Curve) curve2;
228 TColStd_SequenceOfReal startIntervals;
229 TColStd_SequenceOfReal endIntervals;
230 Standard_Integer currentInterval;
231 Bisector_PolyBis myPolygon;
232 Standard_Real shiftParameter;
233 Standard_Real distMax;
234 Standard_Boolean isEmpty;
235 Standard_Boolean isConvex1;
236 Standard_Boolean isConvex2;
237 Standard_Boolean extensionStart;
238 Standard_Boolean extensionEnd;
251 #endif // _Bisector_BisecCC_HeaderFile