db7fac3f24
git-svn-id: https://openfoam-extend.svn.sourceforge.net/svnroot/openfoam-extend/trunk/Core/OpenFOAM-1.5-dev@1731 e4e07f05-0c2f-0410-a05a-b8ba57e0c909
127 lines
3.4 KiB
C++
127 lines
3.4 KiB
C++
/*---------------------------------------------------------------------------*\
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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::ellipseEdge
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Description
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ellipseEdge class : defines the edge of an ellipse in terms of two
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points on the ellipse, its centre and eccentricity, for example:
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@verbatim
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ellipse 8 9 (32.8182156135093 0 0) -0.341427833787956
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ellipse 9 10 (0 11.9214352419999 -32.8182156135093) 0.341427833787956
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@endverbatim
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This still defines two elipses and negative eccentricity selects the
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"other" one.
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SourceFiles
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ellipseEdge.C
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Authors
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Henrik Rusche, Wikki GmbH
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All rights reserved.
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\*---------------------------------------------------------------------------*/
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#ifndef ellipseEdge_H
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#define ellipseEdge_H
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#include "curvedEdge.H"
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#include "ellipticCylindricalCS.H"
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#include "mathematicalConstants.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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using namespace Foam::mathematicalConstant;
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namespace Foam
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{
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/*---------------------------------------------------------------------------*\
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Class ellipseEdge Declaration
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\*---------------------------------------------------------------------------*/
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class ellipseEdge
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:
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public curvedEdge
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{
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// Private data
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vector p1_, p2_, centre_;
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scalar eccentricity_;
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scalar theta1_, theta2_;
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scalar mu_;
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ellipticCylindricalCS cs_;
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ellipticCylindricalCS calcCS();
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public:
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//- Runtime type information
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TypeName("ellipse");
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// Constructors
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//- Construct from components
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ellipseEdge
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(
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const pointField& points,
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const label start, const label end,
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const vector&,
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const scalar
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);
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//- Construct from Istream setting pointsList
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ellipseEdge(const pointField& points, Istream&);
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// Destructor
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virtual ~ellipseEdge(){}
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// Member Functions
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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) 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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