openfoam/applications/utilities/finiteArea/makeFaMesh/findMeshDefinitionDict.H
Mark Olesen ba10afea77 ENH: add 'filtered' polyMesh regionName() method
- in various situations with mesh regions it is also useful to
  filter out or remove the defaultRegion name (ie, "region0").

  Can now do that conveniently from the polyMesh itself or as a static
  function. Simply use this

      const word& regionDir = polyMesh::regionName(regionName);

  OR  mesh.regionName()

  instead of

      const word& regionDir =
      (
           regionName != polyMesh::defaultRegion
         ? regionName
         : word::null
      );

  Additionally, since the string '/' join operator filters out empty
  strings, the following will work correctly:

      (polyMesh::regionName(regionName)/polyMesh::meshSubDir)

      (mesh.regionName()/polyMesh::meshSubDir)
2022-05-27 14:10:31 +02:00

98 lines
2.6 KiB
C

/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | www.openfoam.com
\\/ M anipulation |
-------------------------------------------------------------------------------
Copyright (C) 2021-2022 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM, distributed under GPL-3.0-or-later.
Description
Search for the appropriate faMeshDefinition dictionary...
\*---------------------------------------------------------------------------*/
const word dictName("faMeshDefinition");
autoPtr<IOdictionary> meshDictPtr;
{
fileName dictPath;
const word& regionDir = polyMesh::regionName(regionName);
if (args.readIfPresent("dict", dictPath))
{
// Dictionary specified on the command-line ...
if (isDir(dictPath))
{
dictPath /= dictName;
}
}
else if
(
// Check global location
exists
(
runTime.path()/runTime.caseConstant()
/ regionDir/faMesh::meshSubDir/dictName
)
)
{
// Dictionary present in constant faMesh directory (old-style)
dictPath =
(
runTime.constant()
/ regionDir/faMesh::meshSubDir/dictName
);
// Warn that constant/faMesh/faMeshDefinition was used
// instead of system/faMeshDefinition
#if 0
WarningIn(args.executable())
<< "Using the old faMeshDefinition location: "
<< dictPath << nl
<< " instead of default location: "
<< runTime.system()/regionDir/dictName << nl
<< endl;
#endif
}
else
{
// Assume dictionary is in the system directory
dictPath = runTime.system()/regionDir/dictName;
}
IOobject meshDictIO
(
dictPath,
runTime,
IOobject::MUST_READ,
IOobject::NO_WRITE,
false, // no registerObject
true // is globalObject
);
if (!meshDictIO.typeHeaderOk<IOdictionary>(true))
{
FatalErrorInFunction
<< meshDictIO.objectPath() << nl
<< exit(FatalError);
}
Info<< "Creating faMesh from definition: "
<< meshDictIO.objectRelPath() << endl;
meshDictPtr = autoPtr<IOdictionary>::New(meshDictIO);
}
IOdictionary& meshDefDict = *meshDictPtr;
// ************************************************************************* //