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81 lines
2.4 KiB
C++
Executable File
81 lines
2.4 KiB
C++
Executable File
// Created on: 1998-11-10
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// Created by: Igor FEOKTISTOV
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// Copyright (c) 1998-1999 Matra Datavision
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// Copyright (c) 1999-2012 OPEN CASCADE SAS
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//
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// The content of this file is subject to the Open CASCADE Technology Public
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// License Version 6.5 (the "License"). You may not use the content of this file
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// except in compliance with the License. Please obtain a copy of the License
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// at http://www.opencascade.org and read it completely before using this file.
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//
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// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
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// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
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//
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// The Original Code and all software distributed under the License is
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// distributed on an "AS IS" basis, without warranty of any kind, and the
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// Initial Developer hereby disclaims all such warranties, including without
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// limitation, any warranties of merchantability, fitness for a particular
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// purpose or non-infringement. Please see the License for the specific terms
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// and conditions governing the rights and limitations under the License.
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#include <FEmTool_ElementsOfRefMatrix.ixx>
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#include <PLib_Base.hxx>
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#include <TColStd_Array1OfReal.hxx>
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FEmTool_ElementsOfRefMatrix::FEmTool_ElementsOfRefMatrix(const Handle(PLib_Base)& TheBase,
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const Standard_Integer DerOrder):
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myBase(TheBase)
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{
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if(DerOrder < 0 || DerOrder > 3)
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Standard_ConstructionError::Raise("FEmTool_ElementsOfRefMatrix");
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myDerOrder = DerOrder;
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myNbEquations = (myBase->WorkDegree()+2)*(myBase->WorkDegree()+1)/2;
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}
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Standard_Integer FEmTool_ElementsOfRefMatrix::NbVariables() const
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{
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return 1;
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}
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Standard_Integer FEmTool_ElementsOfRefMatrix::NbEquations() const
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{
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return myNbEquations;
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}
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Standard_Boolean FEmTool_ElementsOfRefMatrix::Value(const math_Vector& X, math_Vector& F)
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{
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if(F.Length() < myNbEquations) Standard_OutOfRange::Raise("FEmTool_ElementsOfRefMatrix::Value");
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Standard_Real u = X(X.Lower());
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TColStd_Array1OfReal Basis(0,myBase->WorkDegree()), Aux(0,myBase->WorkDegree());
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switch (myDerOrder) {
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case 0 :
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myBase->D0(u, Basis);
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break;
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case 1 :
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myBase->D1(u, Aux, Basis);
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break;
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case 2 :
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myBase->D2(u, Aux, Aux, Basis);
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break;
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case 3 :
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myBase->D3(u, Aux, Aux, Aux, Basis);
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break;
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}
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Standard_Integer i, j, ii = 0;
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for(i = 0; i<=myBase->WorkDegree(); i++)
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for(j = i; j<=myBase->WorkDegree(); j++) {
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F(F.Lower()+ii) = Basis(i)*Basis(j); ii++;
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}
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return Standard_True;
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}
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