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119 lines
3.7 KiB
Plaintext
Executable File
119 lines
3.7 KiB
Plaintext
Executable File
// Created on: 1998-12-07
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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 <math_Matrix.hxx>
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#include <math_Vector.hxx>
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#include <TColStd_Array2OfReal.hxx>
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#include <PLib_Base.hxx>
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#include <PLib_JacobiPolynomial.hxx>
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#include <PLib_HermitJacobi.hxx>
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#include <FEmTool_HAssemblyTable.hxx>
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//=======================================================================
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//function : Optimization
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//purpose : (like FORTRAN subroutine MINIMI)
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//=======================================================================
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void AppParCurves_Variational::Optimization(Handle(AppParCurves_SmoothCriterion)& J,
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FEmTool_Assembly& A,
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const Standard_Boolean ToAssemble,
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const Standard_Real EpsDeg,
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Handle(FEmTool_Curve)& Curve,
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const TColStd_Array1OfReal& Parameters) const
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{
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Standard_Integer MxDeg = Curve->Base()->WorkDegree(),
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NbElm = Curve->NbElements(),
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NbDim = Curve->Dimension();
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Handle(FEmTool_HAssemblyTable) AssTable;
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math_Matrix H(0, MxDeg, 0, MxDeg);
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math_Vector G(0, MxDeg), Sol(1, A.NbGlobVar());
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Standard_Integer el, dim;
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A.GetAssemblyTable(AssTable);
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Standard_Integer NbConstr = myNbPassPoints + myNbTangPoints + myNbCurvPoints;
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Standard_Real CBLONG = J->EstLength();
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// Updating Assembly
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if (ToAssemble)
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A.NullifyMatrix();
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A.NullifyVector();
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for (el = 1; el <= NbElm; el++) {
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if (ToAssemble) {
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J->Hessian(el, 1, 1, H);
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for(dim = 1; dim <= NbDim; dim++)
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A.AddMatrix(el, dim, dim, H);
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}
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for(dim = 1; dim <= NbDim; dim++) {
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J->Gradient(el, dim, G);
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A.AddVector(el, dim, G);
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}
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}
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// Solution of system
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if (ToAssemble) {
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if(NbConstr != 0) { //Treatment of constraints
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AssemblingConstraints(Curve, Parameters, CBLONG, A);
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}
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A.Solve();
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}
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A.Solution(Sol);
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// Updating J
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J->SetCurve(Curve);
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J->InputVector(Sol, AssTable);
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// Updating Curve and reduction of degree
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Standard_Integer Newdeg;
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Standard_Real MaxError;
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if(NbConstr == 0) {
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for(el = 1; el <= NbElm; el++) {
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Curve->ReduceDegree(el, EpsDeg, Newdeg, MaxError);
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}
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}
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else {
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TColStd_Array1OfReal& TabInt = Curve->Knots();
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Standard_Integer Icnt = 1, p0 = Parameters.Lower() - myFirstPoint, point;
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for(el = 1; el <= NbElm; el++) {
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while((Icnt < NbConstr) &&
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(Parameters(p0 + myTypConstraints->Value(2 * Icnt - 1)) <= TabInt(el))) Icnt++;
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point = p0 + myTypConstraints->Value(2 * Icnt - 1);
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if(Parameters(point) <= TabInt(el) || Parameters(point) >= TabInt(el + 1))
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Curve->ReduceDegree(el, EpsDeg, Newdeg, MaxError);
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else
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if(Curve->Degree(el) < MxDeg) Curve->SetDegree(el, MxDeg);
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}
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}
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}
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