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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2025 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Class
Foam::zoneGenerators::sphere
Description
A zoneGenerator which selects points, cells or faces with centres either
inside or outside a sphere.
By default all the points, cells or faces of the mesh are tested for being
inside or outside the sphere but an optional single zone or list of zones
may be provided and those points, cells or faces are tested instead. This
provides an efficient method of hierarchical sub-division of space where an
initial selection of points cells or faces is refined by selecting the
sub-set inside or outside the given sphere rather than having to generate
another zone to intersect with.
Usage
\table
Property | Description | Required | Default value
type | Type: sphere | yes |
name | Name of the zone | no | zoneGenerator name
zoneType | Type of zone | yes |
select | Select either the inside or outside | no | inside
moveUpdate | Switch to update after mesh motion | no | false
centre | Centre of the sphere | yes |
radius | Radius of the sphere | yes |
zone | Optional zone to sub-set | no |
zones | Optional list of zones to sub-set | no |
\endtable
A cellZone named \c sphere1 containing the cells with centres inside
a cylinder can be generated by
\verbatim
sphere1
{
type sphere;
zoneType cell;
centre (-0.003 0.0025 0);
radius 0.001;
}
\endverbatim
See also
zoneGenerators::volume
SourceFiles
sphere.C
\*---------------------------------------------------------------------------*/
#ifndef sphere_zoneGenerator_H
#define sphere_zoneGenerator_H
#include "volume.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace zoneGenerators
{
/*---------------------------------------------------------------------------*\
Class sphere Declaration
\*---------------------------------------------------------------------------*/
class sphere
:
public volume
{
// Private Data
//- Centre
vector centre_;
//- Radius
scalar radius_;
//- Radius squared
scalar radiusSqr_;
// Private Member Functions
friend class volume;
//- Return true if the spherees contain the given point
inline bool contains(const point& p) const;
public:
//- Runtime type information
TypeName("sphere");
// Constructors
//- Construct from dictionary
sphere
(
const word& name,
const polyMesh& mesh,
const dictionary& dict
);
//- Destructor
virtual ~sphere();
// Member Functions
virtual zoneSet generate() const;
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace zoneGenerators
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //
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