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1 | -- Created on: 1995-10-19 |
2 | -- Created by: Andre LIEUTIER |
3 | -- Copyright (c) 1995-1999 Matra Datavision |
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4 | -- Copyright (c) 1999-2014 OPEN CASCADE SAS |
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5 | -- |
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6 | -- This file is part of Open CASCADE Technology software library. |
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7 | -- |
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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 |
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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. |
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13 | -- |
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14 | -- Alternatively, this file may be used under the terms of Open CASCADE |
15 | -- commercial license or contractual agreement. |
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16 | |
17 | class D2 from Plate |
18 | ---Purpose : define an order 2 derivatives of a 3d valued |
19 | -- function of a 2d variable |
20 | -- |
21 | |
22 | uses XYZ from gp |
23 | |
24 | is |
25 | Create(duu,duv,dvv : XYZ from gp) returns D2; |
26 | Create(ref : D2 from Plate) returns D2; |
27 | |
28 | fields |
29 | |
30 | Duu, Duv,Dvv : XYZ from gp; |
31 | |
32 | friends |
33 | class GtoCConstraint from Plate, |
34 | class FreeGtoCConstraint from Plate |
35 | end; |