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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::intersection
Description
A zoneGenerator which selects the elements which are in all the zones
generated by the given list of zoneGenerators
An intersection of faceZones is oriented if any of the faceZones combined
are oriented, otherwise the returned faceZone is unoriented.
Usage
\table
Property | Description | Required | Default value
type | Type: intersection | yes |
name | Name of the zone | no | zoneGenerator name
zoneType | Type of zone | no | all the zone types
moveUpdate | Switch to update after mesh motion | no | false
\endtable
These options are followed by a list of any number of zoneGenerators
which can either generate the zones locally or return zones from the lists
of zones held by the mesh using the zoneGenerators::lookup zoneGenerator.
Each zoneGenerator returns a zoneSet containing a pointZone and/or a
cellZone and/or a faceZone, the zoneGenerators::intersection operation
combines each of the zone types unless the \c zoneType is specified in which
case only the zones of that type are combined.
A cellZone named \c coneAnnulus containing the cells with centres inside the
intersection of the predefined \c cone1 cellZone which is looked-up from the
cellZoneList and are also inside the locally defined annulus is be
generated by
\verbatim
coneAnnulus
{
type intersection;
cone1;
annulus1
{
type annulus;
zoneType cell;
point1 (-0.0075 0 -1);
point2 (-0.003 0.0025 1);
outerRadius 0.002;
innerRadius 0.001;
}
}
\endverbatim
See also
zoneGenerators::Union
zoneGenerators::difference
zoneGeneratorList
SourceFiles
intersection.C
\*---------------------------------------------------------------------------*/
#ifndef intersection_zoneGenerator_H
#define intersection_zoneGenerator_H
#include "zoneGeneratorList.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace zoneGenerators
{
/*---------------------------------------------------------------------------*\
Class intersection Declaration
\*---------------------------------------------------------------------------*/
class intersection
:
public zoneGenerator
{
// Private Data
//- The type of zone to lookup (optional)
zoneTypesAll zoneType_;
zoneGeneratorList zoneGenerators_;
// Private Member Functions
//- Count the zone intersections
void countIntersections
(
labelList& nIntersections,
const labelList& indices
) const;
//- Count the faceZone intersections and set the corresponding flipMap
void countIntersections
(
labelList& nIntersections,
boolList& flipMap,
const labelList& indices,
const boolList& zoneFlipMap
) const;
//- Return the list of indices
// for which the number of intersection == the number of zones
labelList indices(const labelList& nIntersections) const;
public:
//- Runtime type information
TypeName("intersection");
// Constructors
//- Construct from dictionary
intersection
(
const word& name,
const polyMesh& mesh,
const dictionary& dict
);
//- Destructor
virtual ~intersection();
// Member Functions
virtual zoneSet generate() const;
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace zoneGenerators
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //
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