[occt.git] / src / BRepAdaptor / BRepAdaptor_Surface.cdl

-- Created on: 1993-02-22
-- Created by: Remi LEQUETTE
-- Copyright (c) 1993-1999 Matra Datavision
-- Copyright (c) 1999-2012 OPEN CASCADE SAS
--
-- The content of this file is subject to the Open CASCADE Technology Public
-- License Version 6.5 (the "License"). You may not use the content of this file
-- except in compliance with the License. Please obtain a copy of the License
-- at http://www.opencascade.org and read it completely before using this file.
--
-- The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
-- main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
--
-- The Original Code and all software distributed under the License is
-- distributed on an "AS IS" basis, without warranty of any kind, and the
-- Initial Developer hereby disclaims all such warranties, including without
-- limitation, any warranties of merchantability, fitness for a particular
-- purpose or non-infringement. Please see the License for the specific terms
-- and conditions governing the rights and limitations under the License.


class Surface from BRepAdaptor inherits Surface from Adaptor3d

	---Purpose: The Surface from BRepAdaptor allows to  use a Face
	--          of the BRep topology look like a 3D surface.
	--          
	--          It  has  the methods  of  the class   Surface from
	--          Adaptor3d.
	--          
	--          It is created or initialized with a Face. It takes
	--          into account the local coordinates system.
	--          
	--          The  u,v parameter range is   the minmax value for
	--          the  restriction,  unless  the flag restriction is
	--          set to false.

uses
    Face            from TopoDS,
    SurfaceType     from GeomAbs,
    HSurface        from Adaptor3d,
    HCurve          from Adaptor3d,
    Surface         from GeomAdaptor,
    Shape           from GeomAbs,
    BezierSurface   from Geom,
    BSplineSurface  from Geom,
    Trsf            from gp,
    Pnt             from gp,
    Vec             from gp,
    Dir             from gp,
    Pln             from gp,
    Cylinder        from gp,
    Sphere          from gp,
    Torus           from gp,
    Cone            from gp,
    Ax1             from gp,
    Array1OfReal    from TColStd


raises 

    OutOfRange   from Standard,
    DomainError  from Standard,
    NoSuchObject from Standard

is

    Create returns Surface from BRepAdaptor;
	---Purpose: Creates an undefined surface with no face loaded.
	
    Create(F : Face from TopoDS;
           R : Boolean = Standard_True) 
    returns Surface from BRepAdaptor;
	---Purpose: Creates a surface to  access the geometry  of <F>.
	--          If  <Restriction> is  true  the parameter range is
	--          the  parameter  range  in   the  UV space  of  the
	--          restriction. 
	
    Initialize(me : in out; F : Face from TopoDS; 
    	    	    	    Restriction : Boolean = Standard_True)
	---Purpose: Sets the surface to the geometry of <F>.
    is static;
    
    Surface(me) returns Surface from GeomAdaptor
	---Purpose: Returns the surface.
	--          
	---C++: return const &
    is static;
    
    ChangeSurface(me : in out) returns Surface from GeomAdaptor
	---Purpose: Returns the surface.
	--          
	---C++: return &
    is static;
    
    Trsf(me) returns Trsf from gp
	---Purpose: Returns the surface coordinate system.
	--          
	---C++: return const &
    is static;
    
    Face(me) returns Face from TopoDS
	---Purpose: Returns the face.
	--          
	---C++: return const &
    is static;
    
    Tolerance(me) returns Real
	---Purpose: Returns the face tolerance.
	--          
    is static;

    --
    --  Methods of Surface from GeomAdaptor
    --              
    
    FirstUParameter(me) returns Real
         ---C++:inline
    is redefined static;

    LastUParameter(me) returns Real
         ---C++:inline
    is redefined static;
    
    FirstVParameter(me) returns Real
         ---C++:inline
    is redefined static;

    LastVParameter(me) returns Real
         ---C++:inline
    is redefined static;
    
    UContinuity(me) returns Shape from GeomAbs
         ---C++:inline
    is redefined static;
    
    VContinuity(me) returns Shape from GeomAbs
         ---C++:inline
    is redefined static;
    
    NbUIntervals(me; S : Shape from GeomAbs) returns Integer
	---Purpose: If necessary, breaks the surface in U intervals of
	--          continuity    <S>.  And   returns  the  number  of
	--          intervals.
        ---C++:inline
    is redefined static;
    
    NbVIntervals(me; S : Shape from GeomAbs) returns Integer
	---Purpose: If necessary, breaks the surface in V intervals of
	--          continuity    <S>.  And   returns  the  number  of
	--          intervals.
        ---C++:inline
    is redefined static;
    
    UIntervals(me; T : in out Array1OfReal from TColStd; 
    	    	   S :        Shape        from GeomAbs ) 
	---Purpose: Returns the  intervals with the requested continuity
	--          in the U direction.
    raises
    	OutOfRange from Standard -- if the Length of the array does
	    	    	         -- have enought slots to accomodate
	    	    	         -- the result.
    is redefined static;

    VIntervals(me; T : in out Array1OfReal from TColStd; 
    	    	   S :        Shape        from GeomAbs ) 
	---Purpose: Returns the  intervals with the requested continuity
	--          in the V direction.
    raises
    	OutOfRange from Standard -- if the Length of the array does
	    	    	         -- have enought slots to accomodate
	    	    	         -- the result.
    is redefined static;
    
    UTrim(me; First, Last, Tol : Real) returns HSurface from Adaptor3d
	---Purpose: Returns    a  surface trimmed in the U direction
	--           equivalent   of  <me>  between
	--          parameters <First>  and <Last>. <Tol>  is used  to
	--          test for 3d points confusion.
    raises
    	OutOfRange from Standard
	---Purpose: If <First> >= <Last> 
    is redefined static ;
    
    VTrim(me; First, Last, Tol : Real) returns HSurface from Adaptor3d
	---Purpose: Returns    a  surface trimmed in the V direction  between
	--          parameters <First>  and <Last>. <Tol>  is used  to
	--          test for 3d points confusion.
    raises
    	OutOfRange from Standard
	---Purpose: If <First> >= <Last> 
    is redefined static ;

    IsUClosed(me) returns Boolean
         ---C++:inline
    is redefined static;
     
    IsVClosed(me) returns Boolean
         ---C++:inline
    is redefined static;
     
    IsUPeriodic(me) returns Boolean
         ---C++:inline
    is redefined static;
    
    UPeriod(me) returns Real
    raises
    	DomainError from Standard -- if the curve is not periodic
         ---C++:inline
    is redefined static;
     
    IsVPeriodic(me) returns Boolean
         ---C++:inline
    is redefined static;
    
    VPeriod(me) returns Real
         ---C++:inline
    raises
    	DomainError from Standard -- if the curve is not periodic
    is redefined static;
     
    Value (me; U, V : Real)  returns Pnt from gp
        --- Purpose : Computes the point of parameters U,V on the surface.
    is redefined static;

    D0 (me; U, V : Real; P : out Pnt from gp)
        --- Purpose : Computes the point of parameters U,V on the surface.
    is redefined static;

    D1 (me; U, V     : Real; 
    	    P        : out Pnt from gp; 
    	    D1U, D1V : out Vec from gp)
        --- Purpose : Computes the point  and the first derivatives on
        --  the surface.
    raises 
    	DomainError from Standard
            --- Purpose   : Raised   if  the continuity  of   the  current
            --  intervals is not C1.
    is redefined static;

    D2 (me; U, V : Real; 
    	    P : out Pnt from gp; 
    	    D1U, D1V, D2U, D2V, D2UV : out Vec from gp)
        --- Purpose  :  Computes   the point,  the  first  and  second
        --  derivatives on the surface.
    raises 
    	DomainError from Standard
            --- Purpose   : Raised  if   the   continuity   of the current
            --  intervals is not C2.
    is redefined static;

    D3 (me; U, V : Real; P : out Pnt from gp; 
    	    D1U, D1V, D2U, D2V, D2UV, D3U, D3V, D3UUV, D3UVV : out Vec from gp)
        --- Purpose : Computes the point,  the first, second and third
        --  derivatives on the surface.
    raises 
    	DomainError from Standard
            --- Purpose   : Raised  if   the   continuity   of the current
            --  intervals is not C3.
    is redefined static;

    DN (me; U, V : Real; Nu, Nv : Integer)   returns Vec from gp
        --- Purpose :  Computes the derivative of order Nu in the direction 
        --  U and Nv in the direction V at the point P(U, V).
    raises 
    	DomainError from Standard,
            --- Purpose : Raised if the current U  interval is not not CNu
            --  and the current V interval is not CNv.
        OutOfRange from Standard
            --- Purpose : Raised if Nu + Nv < 1 or Nu < 0 or Nv < 0.
    is redefined static;
  
    UResolution(me; R3d : Real ) returns Real
         ---Purpose :  Returns the parametric U  resolution corresponding
         --         to the real space resolution <R3d>.
         --         
	---C++:inline
    is redefined static;
  
    VResolution(me; R3d : Real ) returns Real
         ---Purpose :  Returns the parametric V  resolution corresponding
         --         to the real space resolution <R3d>.
         --         
	---C++:inline
    is redefined static;
  
    GetType(me) returns SurfaceType from GeomAbs
	---Purpose: Returns the type of the surface : Plane, Cylinder,
	--          Cone,      Sphere,        Torus,    BezierSurface,
	--          BSplineSurface,               SurfaceOfRevolution,
	--          SurfaceOfExtrusion, OtherSurface
	---C++:inline
    is redefined static;
    
    Plane(me) returns Pln from gp
      raises NoSuchObject from Standard
      
    is redefined static;
    
    Cylinder(me) returns Cylinder from gp
      raises NoSuchObject from Standard
    is redefined static;
    
    Cone(me) returns Cone from gp
      raises NoSuchObject from Standard
    is redefined static;
    
    Sphere(me) returns Sphere from gp
      raises NoSuchObject from Standard
    is redefined static;
    
    Torus(me) returns Torus from gp
      raises NoSuchObject from Standard
    is redefined static;


    UDegree(me) returns Integer 
     raises NoSuchObject from Standard
     ---C++:inline
    is redefined static;

    NbUPoles(me) returns Integer
     raises NoSuchObject from Standard
    ---C++:inline
    is redefined static;

    VDegree(me) returns Integer
     raises NoSuchObject from Standard
	---C++:inline    
    is redefined static;

    NbVPoles(me) returns Integer
     raises NoSuchObject from Standard
	---C++:inline     
    is redefined static;
    
    
    NbUKnots(me) returns Integer
    raises 
       NoSuchObject from Standard
	---C++:inline       
    is redefined static;
    
    
    NbVKnots(me) returns Integer
    raises 
       NoSuchObject from Standard
	---C++:inline       
    is redefined static;
    
    
    IsURational(me) returns Boolean
    raises
    	NoSuchObject from Standard
	---C++:inline	
    is redefined static;
    
    IsVRational(me) returns Boolean
    raises
    	NoSuchObject from Standard
	---C++:inline	
    is redefined static;
    

    Bezier(me) returns BezierSurface from Geom
    	---Purpose: 
--Warning : this will make a copy of the 
    	--           Bezier Surface since it applies
    	--           to it the myTsrf transformation
    	--           Be Carefull when using this method

    raises 
    	NoSuchObject from Standard
    is redefined static;

    BSpline(me) returns BSplineSurface from Geom
    	---Purpose: 
--  Warning : this will make a copy of the 
    	--           BSpline Surface since it applies
    	--           to it the myTsrf transformation
    	--           Be Carefull when using this method

    raises 
    	NoSuchObject from Standard
    is redefined static;
    
    AxeOfRevolution(me) returns Ax1 from gp
    raises 
       NoSuchObject from Standard -- only for SurfaceOfRevolution
    is redefined static;

    Direction(me) returns Dir from gp
    raises 
       NoSuchObject from Standard -- only for SurfaceOfExtrusion
    is redefined static;

    BasisCurve(me) returns HCurve from Adaptor3d
    raises 
       NoSuchObject from Standard
       ---Purpose: only for SurfaceOfExtrusion and SurfaceOfRevolution
       --  Warning: this will make a copy of the underlying curve
       --          since it applies to it the transformation
       --          myTrsf. Be carefull when using this method.
    is redefined static;

    BasisSurface(me) returns HSurface from Adaptor3d
    raises 
       NoSuchObject from Standard -- only for Offset Surface
    is redefined static;

    OffsetValue(me) returns Real from Standard
    raises 
       NoSuchObject from Standard -- only for Offset Surface
    is redefined static;

fields

    mySurf : Surface from GeomAdaptor;
    myTrsf : Trsf from gp;
    myFace : Face from TopoDS;

end Surface;
Commit	Line	Data
b311480e	1	-- Created on: 1993-02-22
	2	-- Created by: Remi LEQUETTE
	3	-- Copyright (c) 1993-1999 Matra Datavision
	4	-- Copyright (c) 1999-2012 OPEN CASCADE SAS
	5	--
	6	-- The content of this file is subject to the Open CASCADE Technology Public
	7	-- License Version 6.5 (the "License"). You may not use the content of this file
	8	-- except in compliance with the License. Please obtain a copy of the License
	9	-- at http://www.opencascade.org and read it completely before using this file.
	10	--
	11	-- The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
	12	-- main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
	13	--
	14	-- The Original Code and all software distributed under the License is
	15	-- distributed on an "AS IS" basis, without warranty of any kind, and the
	16	-- Initial Developer hereby disclaims all such warranties, including without
	17	-- limitation, any warranties of merchantability, fitness for a particular
	18	-- purpose or non-infringement. Please see the License for the specific terms
	19	-- and conditions governing the rights and limitations under the License.
	20
7fd59977	21
	22
	23
	24	class Surface from BRepAdaptor inherits Surface from Adaptor3d
	25
	26	---Purpose: The Surface from BRepAdaptor allows to use a Face
	27	-- of the BRep topology look like a 3D surface.
	28	--
	29	-- It has the methods of the class Surface from
	30	-- Adaptor3d.
	31	--
	32	-- It is created or initialized with a Face. It takes
	33	-- into account the local coordinates system.
	34	--
	35	-- The u,v parameter range is the minmax value for
	36	-- the restriction, unless the flag restriction is
	37	-- set to false.
	38
	39	uses
	40	Face from TopoDS,
	41	SurfaceType from GeomAbs,
	42	HSurface from Adaptor3d,
	43	HCurve from Adaptor3d,
	44	Surface from GeomAdaptor,
	45	Shape from GeomAbs,
	46	BezierSurface from Geom,
	47	BSplineSurface from Geom,
	48	Trsf from gp,
	49	Pnt from gp,
	50	Vec from gp,
	51	Dir from gp,
	52	Pln from gp,
	53	Cylinder from gp,
	54	Sphere from gp,
	55	Torus from gp,
	56	Cone from gp,
	57	Ax1 from gp,
	58	Array1OfReal from TColStd
	59
	60
	61	raises
	62
	63	OutOfRange from Standard,
	64	DomainError from Standard,
	65	NoSuchObject from Standard
	66
	67	is
	68
	69	Create returns Surface from BRepAdaptor;
	70	---Purpose: Creates an undefined surface with no face loaded.
	71
	72	Create(F : Face from TopoDS;
	73	R : Boolean = Standard_True)
	74	returns Surface from BRepAdaptor;
	75	---Purpose: Creates a surface to access the geometry of <F>.
	76	-- If <Restriction> is true the parameter range is
	77	-- the parameter range in the UV space of the
	78	-- restriction.
	79
	80	Initialize(me : in out; F : Face from TopoDS;
	81	Restriction : Boolean = Standard_True)
	82	---Purpose: Sets the surface to the geometry of <F>.
	83	is static;
	84
85	Surface(me) returns Surface from GeomAdaptor
86	---Purpose: Returns the surface.
87	--
88	---C++: return const &
89	is static;
90
91	ChangeSurface(me : in out) returns Surface from GeomAdaptor
92	---Purpose: Returns the surface.
93	--
94	---C++: return &
95	is static;
96
97	Trsf(me) returns Trsf from gp
98	---Purpose: Returns the surface coordinate system.
99	--
100	---C++: return const &
101	is static;
102
103	Face(me) returns Face from TopoDS
104	---Purpose: Returns the face.
105	--
106	---C++: return const &
107	is static;
108
109	Tolerance(me) returns Real
110	---Purpose: Returns the face tolerance.
111	--
112	is static;
113
114	--
115	-- Methods of Surface from GeomAdaptor
116	--
117
118	FirstUParameter(me) returns Real
119	---C++:inline
120	is redefined static;
121
122	LastUParameter(me) returns Real
123	---C++:inline
124	is redefined static;
125
126	FirstVParameter(me) returns Real
127	---C++:inline
128	is redefined static;
129
130	LastVParameter(me) returns Real
131	---C++:inline
132	is redefined static;
133
134	UContinuity(me) returns Shape from GeomAbs
135	---C++:inline
136	is redefined static;
137
138	VContinuity(me) returns Shape from GeomAbs
139	---C++:inline
140	is redefined static;
141
142	NbUIntervals(me; S : Shape from GeomAbs) returns Integer
143	---Purpose: If necessary, breaks the surface in U intervals of
144	-- continuity <S>. And returns the number of
145	-- intervals.
146	---C++:inline
147	is redefined static;
148
149	NbVIntervals(me; S : Shape from GeomAbs) returns Integer
150	---Purpose: If necessary, breaks the surface in V intervals of
151	-- continuity <S>. And returns the number of
152	-- intervals.
153	---C++:inline
154	is redefined static;
155
156	UIntervals(me; T : in out Array1OfReal from TColStd;
157	S : Shape from GeomAbs )
158	---Purpose: Returns the intervals with the requested continuity
159	-- in the U direction.
160	raises
161	OutOfRange from Standard -- if the Length of the array does
162	-- have enought slots to accomodate
163	-- the result.
164	is redefined static;
165
166	VIntervals(me; T : in out Array1OfReal from TColStd;
167	S : Shape from GeomAbs )
168	---Purpose: Returns the intervals with the requested continuity
169	-- in the V direction.
170	raises
171	OutOfRange from Standard -- if the Length of the array does
172	-- have enought slots to accomodate
173	-- the result.
174	is redefined static;
175
176	UTrim(me; First, Last, Tol : Real) returns HSurface from Adaptor3d
177	---Purpose: Returns a surface trimmed in the U direction
178	-- equivalent of <me> between
179	-- parameters <First> and <Last>. <Tol> is used to
180	-- test for 3d points confusion.
181	raises
182	OutOfRange from Standard
183	---Purpose: If <First> >= <Last>
184	is redefined static ;
185
186	VTrim(me; First, Last, Tol : Real) returns HSurface from Adaptor3d
187	---Purpose: Returns a surface trimmed in the V direction between
188	-- parameters <First> and <Last>. <Tol> is used to
189	-- test for 3d points confusion.
190	raises
191	OutOfRange from Standard
192	---Purpose: If <First> >= <Last>
193	is redefined static ;
194
195	IsUClosed(me) returns Boolean
196	---C++:inline
197	is redefined static;
198
199	IsVClosed(me) returns Boolean
200	---C++:inline
201	is redefined static;
202
203	IsUPeriodic(me) returns Boolean
204	---C++:inline
205	is redefined static;
206
207	UPeriod(me) returns Real
208	raises
209	DomainError from Standard -- if the curve is not periodic
210	---C++:inline
211	is redefined static;
212
213	IsVPeriodic(me) returns Boolean
214	---C++:inline
215	is redefined static;
216
217	VPeriod(me) returns Real
218	---C++:inline
219	raises
220	DomainError from Standard -- if the curve is not periodic
221	is redefined static;
222
223	Value (me; U, V : Real) returns Pnt from gp
224	--- Purpose : Computes the point of parameters U,V on the surface.
225	is redefined static;
226
227	D0 (me; U, V : Real; P : out Pnt from gp)
228	--- Purpose : Computes the point of parameters U,V on the surface.
229	is redefined static;
230
231	D1 (me; U, V : Real;
232	P : out Pnt from gp;
233	D1U, D1V : out Vec from gp)
234	--- Purpose : Computes the point and the first derivatives on
235	-- the surface.
236	raises
237	DomainError from Standard
238	--- Purpose : Raised if the continuity of the current
239	-- intervals is not C1.
240	is redefined static;
241
242	D2 (me; U, V : Real;
243	P : out Pnt from gp;
244	D1U, D1V, D2U, D2V, D2UV : out Vec from gp)
245	--- Purpose : Computes the point, the first and second
246	-- derivatives on the surface.
247	raises
248	DomainError from Standard
249	--- Purpose : Raised if the continuity of the current
250	-- intervals is not C2.
251	is redefined static;
252
253	D3 (me; U, V : Real; P : out Pnt from gp;
254	D1U, D1V, D2U, D2V, D2UV, D3U, D3V, D3UUV, D3UVV : out Vec from gp)
255	--- Purpose : Computes the point, the first, second and third
256	-- derivatives on the surface.
257	raises
258	DomainError from Standard
259	--- Purpose : Raised if the continuity of the current
260	-- intervals is not C3.
261	is redefined static;
262
263	DN (me; U, V : Real; Nu, Nv : Integer) returns Vec from gp
264	--- Purpose : Computes the derivative of order Nu in the direction
265	-- U and Nv in the direction V at the point P(U, V).
266	raises
267	DomainError from Standard,
268	--- Purpose : Raised if the current U interval is not not CNu
269	-- and the current V interval is not CNv.
270	OutOfRange from Standard
271	--- Purpose : Raised if Nu + Nv < 1 or Nu < 0 or Nv < 0.
272	is redefined static;
273
274	UResolution(me; R3d : Real ) returns Real
275	---Purpose : Returns the parametric U resolution corresponding
276	-- to the real space resolution <R3d>.
277	--
278	---C++:inline
279	is redefined static;
280
281	VResolution(me; R3d : Real ) returns Real
282	---Purpose : Returns the parametric V resolution corresponding
283	-- to the real space resolution <R3d>.
284	--
285	---C++:inline
286	is redefined static;
287
288	GetType(me) returns SurfaceType from GeomAbs
289	---Purpose: Returns the type of the surface : Plane, Cylinder,
290	-- Cone, Sphere, Torus, BezierSurface,
291	-- BSplineSurface, SurfaceOfRevolution,
292	-- SurfaceOfExtrusion, OtherSurface
293	---C++:inline
294	is redefined static;
295
296	Plane(me) returns Pln from gp
297	raises NoSuchObject from Standard
298
299	is redefined static;
300
301	Cylinder(me) returns Cylinder from gp
302	raises NoSuchObject from Standard
303	is redefined static;
304
305	Cone(me) returns Cone from gp
306	raises NoSuchObject from Standard
307	is redefined static;
308
309	Sphere(me) returns Sphere from gp
310	raises NoSuchObject from Standard
311	is redefined static;
312
313	Torus(me) returns Torus from gp
314	raises NoSuchObject from Standard
315	is redefined static;
316
317
318	UDegree(me) returns Integer
319	raises NoSuchObject from Standard
320	---C++:inline
321	is redefined static;
322
323	NbUPoles(me) returns Integer
324	raises NoSuchObject from Standard
325	---C++:inline
326	is redefined static;
327
328	VDegree(me) returns Integer
329	raises NoSuchObject from Standard
330	---C++:inline
331	is redefined static;
332
333	NbVPoles(me) returns Integer
334	raises NoSuchObject from Standard
335	---C++:inline
336	is redefined static;
337
338
339	NbUKnots(me) returns Integer
340	raises
341	NoSuchObject from Standard
342	---C++:inline
343	is redefined static;
344
345
346	NbVKnots(me) returns Integer
347	raises
348	NoSuchObject from Standard
349	---C++:inline
350	is redefined static;
351
352
353	IsURational(me) returns Boolean
354	raises
355	NoSuchObject from Standard
356	---C++:inline
357	is redefined static;
358
359	IsVRational(me) returns Boolean
360	raises
361	NoSuchObject from Standard
362	---C++:inline
363	is redefined static;
364
365
366	Bezier(me) returns BezierSurface from Geom
367	---Purpose:
368	--Warning : this will make a copy of the
369	-- Bezier Surface since it applies
370	-- to it the myTsrf transformation
371	-- Be Carefull when using this method
372
373	raises
374	NoSuchObject from Standard
375	is redefined static;
376
377	BSpline(me) returns BSplineSurface from Geom
378	---Purpose:
379	-- Warning : this will make a copy of the
380	-- BSpline Surface since it applies
381	-- to it the myTsrf transformation
382	-- Be Carefull when using this method
383
384	raises
385	NoSuchObject from Standard
386	is redefined static;
387
388	AxeOfRevolution(me) returns Ax1 from gp
389	raises
390	NoSuchObject from Standard -- only for SurfaceOfRevolution
391	is redefined static;
392
393	Direction(me) returns Dir from gp
394	raises
395	NoSuchObject from Standard -- only for SurfaceOfExtrusion
396	is redefined static;
397
398	BasisCurve(me) returns HCurve from Adaptor3d
399	raises
400	NoSuchObject from Standard
401	---Purpose: only for SurfaceOfExtrusion and SurfaceOfRevolution
402	-- Warning: this will make a copy of the underlying curve
403	-- since it applies to it the transformation
404	-- myTrsf. Be carefull when using this method.
405	is redefined static;
406
407	BasisSurface(me) returns HSurface from Adaptor3d
408	raises
409	NoSuchObject from Standard -- only for Offset Surface
410	is redefined static;
411
412	OffsetValue(me) returns Real from Standard
413	raises
414	NoSuchObject from Standard -- only for Offset Surface
415	is redefined static;
416
417	fields
418
419	mySurf : Surface from GeomAdaptor;
420	myTrsf : Trsf from gp;
421	myFace : Face from TopoDS;
422
423	end Surface;