nastranSurfaceWriter.H

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    Copyright (C) 2012-2016 OpenFOAM Foundation
    Copyright (C) 2015-2020 OpenCFD Ltd.
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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::surfaceWriters::nastranWriter
 
Description
    A surface writer for the Nastran file format - both surface mesh and fields
 
    The formatOptions for nastran:
    \table
        Property | Description                              | Required | Default
        fields   | field pairs for PLOAD2/PLOAD4            | yes   |
        format   | short / long / free                      | no    | long
        scale    | output geometry scaling                  | no    | 1
        fieldScale | output field scaling (dictionary)      | no    | empty
        commonGeometry | use separate geometry files        | no    | false
    \endtable
 
    For example,
    \verbatim
    formatOptions
    {
        nastran
        {
            // OpenFOAM field name to NASTRAN load types
            fields
            (
                (pMean  PLOAD2)
                (p      PLOAD4)
            );
 
            format  free;     // format type
 
            scale   1000;     // [m] -> [mm]
            fieldScale
            {
               "p.*"   0.01;  // [Pa] -> [mbar]
            }
        }
    }
    \endverbatim
 
    \section Output file locations
 
    The \c rootdir normally corresponds to something like
    \c postProcessing/<name>
 
    \subsection Geometry
    \verbatim
    rootdir
    `-- <time>
        |-- surfaceName0.{nas}
        `-- surfaceName1.{nas}
    \endverbatim
 
    \subsection Fields
    \verbatim
    rootdir
    `-- <time>
        `-- field0
        |   |-- surfaceName0.{bdf}
        |   `-- surfaceName1.{bdf}
        `-- field1
            |-- surfaceName0.{bdf}
            `-- surfaceName1.{bdf}
    \endverbatim
 
Note
    Output variable scaling does not apply to integer types such as Ids.
    Field pairs default to PLOAD2 for scalars and PLOAD4 for vectors etc.
 
SourceFiles
    nastranSurfaceWriter.C
    nastranSurfaceWriterImpl.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef nastranSurfaceWriter_H
#define nastranSurfaceWriter_H
 
#include "surfaceWriter.H"
#include "NASCore.H"
#include "HashTable.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace surfaceWriters
{
 
/*---------------------------------------------------------------------------*\
                        Class nastranWriter Declaration
\*---------------------------------------------------------------------------*/
 
class nastranWriter
:
    public surfaceWriter
{
public:
 
    //- File field formats
    using fieldFormat = Foam::fileFormats::NASCore::fieldFormat;
 
    //- Output load format
    using loadFormat = Foam::fileFormats::NASCore::loadFormat;
 
 
private:
 
    // Private Data
 
        //- Field format (width and separator)
        fieldFormat writeFormat_;
 
        //- Mapping from field name to data format enumeration
        HashTable<loadFormat> fieldMap_;
 
        //- Use common geometry file
        bool commonGeometry_;
 
        //- Output geometry scaling
        const scalar geometryScale_;
 
        //- Output field scaling
        const dictionary fieldScale_;
 
        //- Separator used for free format
        word separator_;
 
 
    // Private Member Functions
 
        //- Write a coordinate
        void writeCoord
        (
            Ostream& os,
            const point& pt,
            const label pointI      
        ) const;
 
        //- Write a face element (CTRIA3 or CQUAD4)
        void writeFace
        (
            Ostream& os,
            const word& faceType,
            const labelUList& facePts,
            const label elemId,     
            const label propId      
        ) const;
 
        //- Write the surface mesh geometry, tracking face decomposition
        //  Includes SHELL/MAT information
        //
        //  \param decompOffsets  begin/end offsets (size+1) into decompFaces
        //  \param decompFaces    Non tri/quad decomposed into triangles
        void writeGeometry
        (
            Ostream& os,
            const meshedSurf& surf,
            labelList& decompOffsets,
            DynamicList<face>& decompFaces
        ) const;
 
        //- Write the formatted keyword to the output stream
        Ostream& writeKeyword
        (
            Ostream& os,
            const word& keyword
        ) const;
 
        //- Write a formatted value to the output stream
        template<class Type>
        Ostream& writeValue(Ostream& os, const Type& value) const;
 
        //- Write a face-based value
        template<class Type>
        Ostream& writeFaceValue
        (
            Ostream& os,
            const loadFormat format,
            const Type& value,
            const label elemId      
        ) const;
 
 
        //- Templated write operation
        template<class Type>
        fileName writeTemplate
        (
            const word& fieldName,          
            const Field<Type>& localValues  
        );
 
 
public:
 
    //- Declare type-name, virtual type (with debug switch)
    TypeNameNoDebug("nastran");
 
 
    // Constructors
 
        //- Default construct. Default SHORT format
        nastranWriter();
 
        //- Construct with some output options. Default LONG format
        explicit nastranWriter(const dictionary& options);
 
        //- Construct from components
        nastranWriter
        (
            const meshedSurf& surf,
            const fileName& outputPath,
            bool parallel = Pstream::parRun(),
            const dictionary& options = dictionary()
        );
 
        //- Construct from components
        nastranWriter
        (
            const pointField& points,
            const faceList& faces,
            const fileName& outputPath,
            bool parallel = Pstream::parRun(),
            const dictionary& options = dictionary()
        );
 
 
    //- Destructor
    virtual ~nastranWriter() = default;
 
 
    // Member Functions
 
        //- Format uses faceIds as part of its output
        virtual bool usesFaceIds() const // override
        {
            return true;
        }
 
        //- Write surface geometry to file.
        virtual fileName write(); // override
 
        declareSurfaceWriterWriteMethod(label);
        declareSurfaceWriterWriteMethod(scalar);
        declareSurfaceWriterWriteMethod(vector);
        declareSurfaceWriterWriteMethod(sphericalTensor);
        declareSurfaceWriterWriteMethod(symmTensor);
        declareSurfaceWriterWriteMethod(tensor);
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace surfaceWriters
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //