1 // Created on: 1993-05-14
2 // Created by: Bruno DUMORTIER
3 // Copyright (c) 1993-1999 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 _GeomAdaptor_Surface_HeaderFile
18 #define _GeomAdaptor_Surface_HeaderFile
20 #include <Standard.hxx>
21 #include <Standard_DefineAlloc.hxx>
22 #include <Standard_Handle.hxx>
24 #include <GeomAbs_SurfaceType.hxx>
25 #include <Standard_Real.hxx>
26 #include <BSplSLib_Cache.hxx>
27 #include <Adaptor3d_Surface.hxx>
28 #include <GeomAbs_Shape.hxx>
29 #include <Standard_Integer.hxx>
30 #include <TColStd_Array1OfReal.hxx>
31 #include <Standard_Boolean.hxx>
32 #include <GeomEvaluator_Surface.hxx>
34 class Standard_NoSuchObject;
35 class Standard_OutOfRange;
36 class Standard_ConstructionError;
37 class Standard_DomainError;
38 class Adaptor3d_HSurface;
46 class Geom_BezierSurface;
47 class Geom_BSplineSurface;
50 class Adaptor3d_HCurve;
53 //! An interface between the services provided by any
54 //! surface from the package Geom and those required
55 //! of the surface by algorithms which use it.
56 //! Creation of the loaded surface the surface is C1 by piece
58 //! Polynomial coefficients of BSpline surfaces used for their evaluation are
59 //! cached for better performance. Therefore these evaluations are not
60 //! thread-safe and parallel evaluations need to be prevented.
61 class GeomAdaptor_Surface : public Adaptor3d_Surface
68 GeomAdaptor_Surface();
70 GeomAdaptor_Surface(const Handle(Geom_Surface)& S);
72 //! ConstructionError is raised if UFirst>ULast or VFirst>VLast
73 GeomAdaptor_Surface(const Handle(Geom_Surface)& S, const Standard_Real UFirst, const Standard_Real ULast, const Standard_Real VFirst, const Standard_Real VLast, const Standard_Real TolU = 0.0, const Standard_Real TolV = 0.0);
75 void Load (const Handle(Geom_Surface)& S);
77 //! ConstructionError is raised if UFirst>ULast or VFirst>VLast
78 void Load (const Handle(Geom_Surface)& S, const Standard_Real UFirst, const Standard_Real ULast, const Standard_Real VFirst, const Standard_Real VLast, const Standard_Real TolU = 0.0, const Standard_Real TolV = 0.0);
80 const Handle(Geom_Surface)& Surface() const;
82 Standard_Real FirstUParameter() const Standard_OVERRIDE;
84 Standard_Real LastUParameter() const Standard_OVERRIDE;
86 Standard_Real FirstVParameter() const Standard_OVERRIDE;
88 Standard_Real LastVParameter() const Standard_OVERRIDE;
90 Standard_EXPORT GeomAbs_Shape UContinuity() const Standard_OVERRIDE;
92 Standard_EXPORT GeomAbs_Shape VContinuity() const Standard_OVERRIDE;
94 //! Returns the number of U intervals for continuity
95 //! <S>. May be one if UContinuity(me) >= <S>
96 Standard_EXPORT Standard_Integer NbUIntervals (const GeomAbs_Shape S) const Standard_OVERRIDE;
98 //! Returns the number of V intervals for continuity
99 //! <S>. May be one if VContinuity(me) >= <S>
100 Standard_EXPORT Standard_Integer NbVIntervals (const GeomAbs_Shape S) const Standard_OVERRIDE;
102 //! Returns the intervals with the requested continuity
103 //! in the U direction.
104 Standard_EXPORT void UIntervals (TColStd_Array1OfReal& T, const GeomAbs_Shape S) const Standard_OVERRIDE;
106 //! Returns the intervals with the requested continuity
107 //! in the V direction.
108 Standard_EXPORT void VIntervals (TColStd_Array1OfReal& T, const GeomAbs_Shape S) const Standard_OVERRIDE;
110 //! Returns a surface trimmed in the U direction
111 //! equivalent of <me> between
112 //! parameters <First> and <Last>. <Tol> is used to
113 //! test for 3d points confusion.
114 //! If <First> >= <Last>
115 Standard_EXPORT Handle(Adaptor3d_HSurface) UTrim (const Standard_Real First, const Standard_Real Last, const Standard_Real Tol) const Standard_OVERRIDE;
117 //! Returns a surface trimmed in the V direction between
118 //! parameters <First> and <Last>. <Tol> is used to
119 //! test for 3d points confusion.
120 //! If <First> >= <Last>
121 Standard_EXPORT Handle(Adaptor3d_HSurface) VTrim (const Standard_Real First, const Standard_Real Last, const Standard_Real Tol) const Standard_OVERRIDE;
123 Standard_EXPORT Standard_Boolean IsUClosed() const Standard_OVERRIDE;
125 Standard_EXPORT Standard_Boolean IsVClosed() const Standard_OVERRIDE;
127 Standard_EXPORT Standard_Boolean IsUPeriodic() const Standard_OVERRIDE;
129 Standard_EXPORT Standard_Real UPeriod() const Standard_OVERRIDE;
131 Standard_EXPORT Standard_Boolean IsVPeriodic() const Standard_OVERRIDE;
133 Standard_EXPORT Standard_Real VPeriod() const Standard_OVERRIDE;
135 //! Computes the point of parameters U,V on the surface.
136 Standard_EXPORT gp_Pnt Value (const Standard_Real U, const Standard_Real V) const Standard_OVERRIDE;
138 //! Computes the point of parameters U,V on the surface.
139 Standard_EXPORT void D0 (const Standard_Real U, const Standard_Real V, gp_Pnt& P) const Standard_OVERRIDE;
141 //! Computes the point and the first derivatives on
144 //! Warning : On the specific case of BSplineSurface:
145 //! if the surface is cut in interval of continuity at least C1,
146 //! the derivatives are computed on the current interval.
147 //! else the derivatives are computed on the basis surface.
148 Standard_EXPORT void D1 (const Standard_Real U, const Standard_Real V, gp_Pnt& P, gp_Vec& D1U, gp_Vec& D1V) const Standard_OVERRIDE;
150 //! Computes the point, the first and second
151 //! derivatives on the surface.
153 //! Warning : On the specific case of BSplineSurface:
154 //! if the surface is cut in interval of continuity at least C2,
155 //! the derivatives are computed on the current interval.
156 //! else the derivatives are computed on the basis surface.
157 Standard_EXPORT void D2 (const Standard_Real U, const Standard_Real V, gp_Pnt& P, gp_Vec& D1U, gp_Vec& D1V, gp_Vec& D2U, gp_Vec& D2V, gp_Vec& D2UV) const Standard_OVERRIDE;
159 //! Computes the point, the first, second and third
160 //! derivatives on the surface.
162 //! Warning : On the specific case of BSplineSurface:
163 //! if the surface is cut in interval of continuity at least C3,
164 //! the derivatives are computed on the current interval.
165 //! else the derivatives are computed on the basis surface.
166 Standard_EXPORT void D3 (const Standard_Real U, const Standard_Real V, gp_Pnt& P, gp_Vec& D1U, gp_Vec& D1V, gp_Vec& D2U, gp_Vec& D2V, gp_Vec& D2UV, gp_Vec& D3U, gp_Vec& D3V, gp_Vec& D3UUV, gp_Vec& D3UVV) const Standard_OVERRIDE;
168 //! Computes the derivative of order Nu in the
169 //! direction U and Nv in the direction V at the point P(U, V).
171 //! Warning : On the specific case of BSplineSurface:
172 //! if the surface is cut in interval of continuity CN,
173 //! the derivatives are computed on the current interval.
174 //! else the derivatives are computed on the basis surface.
175 //! Raised if Nu + Nv < 1 or Nu < 0 or Nv < 0.
176 Standard_EXPORT gp_Vec DN (const Standard_Real U, const Standard_Real V, const Standard_Integer Nu, const Standard_Integer Nv) const Standard_OVERRIDE;
178 //! Returns the parametric U resolution corresponding
179 //! to the real space resolution <R3d>.
180 Standard_EXPORT Standard_Real UResolution (const Standard_Real R3d) const Standard_OVERRIDE;
182 //! Returns the parametric V resolution corresponding
183 //! to the real space resolution <R3d>.
184 Standard_EXPORT Standard_Real VResolution (const Standard_Real R3d) const Standard_OVERRIDE;
186 //! Returns the type of the surface : Plane, Cylinder,
187 //! Cone, Sphere, Torus, BezierSurface,
188 //! BSplineSurface, SurfaceOfRevolution,
189 //! SurfaceOfExtrusion, OtherSurface
190 GeomAbs_SurfaceType GetType() const Standard_OVERRIDE;
192 Standard_EXPORT gp_Pln Plane() const Standard_OVERRIDE;
194 Standard_EXPORT gp_Cylinder Cylinder() const Standard_OVERRIDE;
196 Standard_EXPORT gp_Cone Cone() const Standard_OVERRIDE;
198 Standard_EXPORT gp_Sphere Sphere() const Standard_OVERRIDE;
200 Standard_EXPORT gp_Torus Torus() const Standard_OVERRIDE;
202 Standard_EXPORT Standard_Integer UDegree() const Standard_OVERRIDE;
204 Standard_EXPORT Standard_Integer NbUPoles() const Standard_OVERRIDE;
206 Standard_EXPORT Standard_Integer VDegree() const Standard_OVERRIDE;
208 Standard_EXPORT Standard_Integer NbVPoles() const Standard_OVERRIDE;
210 Standard_EXPORT Standard_Integer NbUKnots() const Standard_OVERRIDE;
212 Standard_EXPORT Standard_Integer NbVKnots() const Standard_OVERRIDE;
214 Standard_EXPORT Standard_Boolean IsURational() const Standard_OVERRIDE;
216 Standard_EXPORT Standard_Boolean IsVRational() const Standard_OVERRIDE;
218 //! This will NOT make a copy of the
219 //! Bezier Surface : If you want to modify
220 //! the Surface please make a copy yourself
221 //! Also it will NOT trim the surface to
223 Standard_EXPORT Handle(Geom_BezierSurface) Bezier() const Standard_OVERRIDE;
225 //! This will NOT make a copy of the
226 //! BSpline Surface : If you want to modify
227 //! the Surface please make a copy yourself
228 //! Also it will NOT trim the surface to
230 Standard_EXPORT Handle(Geom_BSplineSurface) BSpline() const Standard_OVERRIDE;
232 Standard_EXPORT gp_Ax1 AxeOfRevolution() const Standard_OVERRIDE;
234 Standard_EXPORT gp_Dir Direction() const Standard_OVERRIDE;
236 Standard_EXPORT Handle(Adaptor3d_HCurve) BasisCurve() const Standard_OVERRIDE;
238 Standard_EXPORT Handle(Adaptor3d_HSurface) BasisSurface() const Standard_OVERRIDE;
240 Standard_EXPORT Standard_Real OffsetValue() const Standard_OVERRIDE;
254 Standard_EXPORT void Span (const Standard_Integer Side, const Standard_Integer Ideb, const Standard_Integer Ifin, Standard_Integer& OutIdeb, Standard_Integer& OutIfin, const Standard_Integer FKIndx, const Standard_Integer LKIndx) const;
256 Standard_EXPORT Standard_Boolean IfUVBound (const Standard_Real U, const Standard_Real V, Standard_Integer& Ideb, Standard_Integer& Ifin, Standard_Integer& IVdeb, Standard_Integer& IVfin, const Standard_Integer USide, const Standard_Integer VSide) const;
258 Standard_EXPORT void load (const Handle(Geom_Surface)& S, const Standard_Real UFirst, const Standard_Real ULast, const Standard_Real VFirst, const Standard_Real VLast, const Standard_Real TolU = 0.0, const Standard_Real TolV = 0.0);
260 //! Rebuilds B-spline cache
261 //! \param theU first parameter to identify the span for caching
262 //! \param theV second parameter to identify the span for caching
263 Standard_EXPORT void RebuildCache (const Standard_Real theU, const Standard_Real theV) const;
266 Handle(Geom_Surface) mySurface;
267 Standard_Real myUFirst;
268 Standard_Real myULast;
269 Standard_Real myVFirst;
270 Standard_Real myVLast;
271 Standard_Real myTolU;
272 Standard_Real myTolV;
274 Handle(Geom_BSplineSurface) myBSplineSurface; ///< B-spline representation to prevent downcasts
275 mutable Handle(BSplSLib_Cache) mySurfaceCache; ///< Cached data for B-spline or Bezier surface
278 GeomAbs_SurfaceType mySurfaceType;
279 Handle(GeomEvaluator_Surface) myNestedEvaluator; ///< Calculates values of nested complex surfaces (offset surface, surface of extrusion or revolution)
283 #include <GeomAdaptor_Surface.lxx>
289 #endif // _GeomAdaptor_Surface_HeaderFile