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1 | // Created on: 1998-11-10 |
2 | // Created by: Igor FEOKTISTOV |
3 | // Copyright (c) 1998-1999 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 | #include <FEmTool_ElementsOfRefMatrix.ixx> |
24 | #include <PLib_Base.hxx> |
25 | #include <TColStd_Array1OfReal.hxx> |
26 | |
27 | |
28 | FEmTool_ElementsOfRefMatrix::FEmTool_ElementsOfRefMatrix(const Handle(PLib_Base)& TheBase, |
29 | const Standard_Integer DerOrder): |
30 | myBase(TheBase) |
31 | { |
32 | if(DerOrder < 0 || DerOrder > 3) |
33 | Standard_ConstructionError::Raise("FEmTool_ElementsOfRefMatrix"); |
34 | |
35 | myDerOrder = DerOrder; |
36 | myNbEquations = (myBase->WorkDegree()+2)*(myBase->WorkDegree()+1)/2; |
37 | |
38 | } |
39 | |
40 | Standard_Integer FEmTool_ElementsOfRefMatrix::NbVariables() const |
41 | { |
42 | return 1; |
43 | } |
44 | |
45 | Standard_Integer FEmTool_ElementsOfRefMatrix::NbEquations() const |
46 | { |
47 | return myNbEquations; |
48 | } |
49 | |
50 | Standard_Boolean FEmTool_ElementsOfRefMatrix::Value(const math_Vector& X, math_Vector& F) |
51 | { |
52 | if(F.Length() < myNbEquations) Standard_OutOfRange::Raise("FEmTool_ElementsOfRefMatrix::Value"); |
53 | |
54 | Standard_Real u = X(X.Lower()); |
55 | TColStd_Array1OfReal Basis(0,myBase->WorkDegree()), Aux(0,myBase->WorkDegree()); |
56 | |
57 | switch (myDerOrder) { |
58 | case 0 : |
59 | myBase->D0(u, Basis); |
60 | break; |
61 | case 1 : |
62 | myBase->D1(u, Aux, Basis); |
63 | break; |
64 | case 2 : |
65 | myBase->D2(u, Aux, Aux, Basis); |
66 | break; |
67 | case 3 : |
68 | myBase->D3(u, Aux, Aux, Aux, Basis); |
69 | break; |
70 | } |
71 | |
72 | Standard_Integer i, j, ii = 0; |
73 | for(i = 0; i<=myBase->WorkDegree(); i++) |
74 | for(j = i; j<=myBase->WorkDegree(); j++) { |
75 | F(F.Lower()+ii) = Basis(i)*Basis(j); ii++; |
76 | } |
77 | |
78 | return Standard_True; |
79 | } |
80 | |