106 lines
2.9 KiB
C
106 lines
2.9 KiB
C
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/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright held by original author
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 2 of the License, or (at your
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option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM; if not, write to the Free Software Foundation,
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Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Class
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Foam::BSpline
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Description
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BSpline : cubic spline going through all the knots
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SourceFiles
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BSpline.C
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\*---------------------------------------------------------------------------*/
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#ifndef BSpline_H
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#define BSpline_H
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#include "spline.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace Foam
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{
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/*---------------------------------------------------------------------------*\
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Class BSpline Declaration
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\*---------------------------------------------------------------------------*/
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class BSpline
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:
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public spline
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{
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// Private member functions
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scalar remap(const scalar&);
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pointField findKnots
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(
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const pointField&,
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const vector& fstend = vector::zero,
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const vector& sndend = vector::zero
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);
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public:
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// Constructors
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//- Construct from components
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BSpline(const pointField& knots);
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//- Construct from components
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BSpline
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(
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const pointField& knots,
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const vector& fstend,
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const vector& sndend
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);
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// Member Functions
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//- Return the real position of a point on the curve given by
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// the parameter 0 <= lambda <= 1
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vector realPosition(scalar lambda);
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//- Return the position of a point on the curve given by
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// the parameter 0 <= lambda <= 1
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vector position(const scalar lambda) const;
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//- Return the length of the curve
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scalar length() const;
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};
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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} // End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************************************************************* //
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