mirror of
https://github.com/Open-Cascade-SAS/OCCT.git
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42cf5bc1ca
Automatic upgrade of OCCT code by command "occt_upgrade . -nocdl": - WOK-generated header files from inc and sources from drv are moved to src - CDL files removed - All packages are converted to nocdlpack
76 lines
2.2 KiB
C++
76 lines
2.2 KiB
C++
// 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) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#include <FEmTool_ElementsOfRefMatrix.hxx>
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#include <PLib_Base.hxx>
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#include <Standard_ConstructionError.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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