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fieldExprDriverTemplates.C 2.44 KiB
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  • /*---------------------------------------------------------------------------*\
      =========                 |
      \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
       \\    /   O peration     |
        \\  /    A nd           | www.openfoam.com
         \\/     M anipulation  |
    -------------------------------------------------------------------------------
        Copyright (C) 2019 OpenCFD Ltd.
    -------------------------------------------------------------------------------
    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/>.
    
    \*---------------------------------------------------------------------------*/
    
    // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
    
    template<class Type>
    Foam::tmp<Foam::Field<Type>>
    Foam::expressions::fieldExpr::parseDriver::getField
    (
        const word& name
    ) const
    {
        bool isPointVal = false;
        bool isUniformVal = false;
    
        tmp<Field<Type>> tfield;
    
        if (hasVariable(name) && variable(name).isType<Type>())
        {
            const expressions::exprResult& var = variable(name);
    
            isPointVal = var.isPointValue();
            isUniformVal = var.isUniform();
    
            tfield = var.cref<Type>().clone();
        }
    
        if (tfield.valid())
        {
            const label fldLen = tfield().size();
            const label len = (isPointVal ? this->pointSize() : this->size());
    
            if (returnReduce((fldLen == len), andOp<bool>()))
            {
                return tfield;
            }
    
            if (!isUniformVal)
            {
                WarningInFunction
                    << "Variable " << name
                    << " does not fit the size and is not a uniform value." << nl
                    << "Using average value" << endl;
            }
    
            return tmp<Field<Type>>::New(this->size(), gAverage(tfield));
        }
    
        return tfield;
    }
    
    
    // ************************************************************************* //