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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::Union
Description
A zoneGenerator which selects all the elements from the zones generated by
the given list of zoneGenerators
A union of faceZones is oriented only if ALL the faceZones combined are
oriented, otherwise the returned faceZone is unoriented.
Usage
\table
Property | Description | Required | Default value
type | Type: union | 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::Union 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 coneAndAnnulus containing the cells with centres
inside the union of the predefined \c cone1 cellZone which is looked-up
from the cellZoneList and the locally defined annulus is be generated by
\verbatim
coneAndAnnulus
{
type union;
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::difference
zoneGenerators::intersection
zoneGeneratorList
SourceFiles
Union.C
\*---------------------------------------------------------------------------*/
#ifndef union_zoneGenerator_H
#define union_zoneGenerator_H
#include "zoneGeneratorList.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace zoneGenerators
{
/*---------------------------------------------------------------------------*\
Class Union Declaration
\*---------------------------------------------------------------------------*/
class Union
:
public zoneGenerator
{
// Private Data
//- The type of zone to lookup (optional)
zoneTypesAll zoneType_;
zoneGeneratorList zoneGenerators_;
// Private Member Functions
//- Add the given list of indices to the selected list
void select
(
boolList& selected,
const labelList& indices,
const bool select = true
) const;
//- Add the given list of face indices and corresponding flipMap
// to the selected list and flipMap
void select
(
boolList& selected,
boolList& flipMap,
const labelList& indices,
const boolList& zoneFlipMap,
const bool select = true
) const;
protected:
// Protected Member Functions
//- Generate the zoneSet for union or difference
// optionally initialising all the points and/or cells and/or faces
zoneSet generate(const bool diff, const bool all) const;
public:
//- Runtime type information
TypeName("union");
// Constructors
//- Construct from dictionary
Union
(
const word& name,
const polyMesh& mesh,
const dictionary& dict
);
//- Destructor
virtual ~Union();
// Member Functions
virtual zoneSet generate() const;
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace zoneGenerators
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //
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