ENH: multi-region support for transformPoints (#2080)

applications/utilities/mesh/manipulation/transformPoints/createRegionMesh.H

@@ -0,0 +1,49 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | www.openfoam.com
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+    Copyright (C) 2021 OpenCFD Ltd.
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM, distributed under GPL-3.0-or-later.
+
+Description
+    Create a fvMesh for a specified named region
+
+Required Variables
+    - regionName [word]
+    - runTime [Time]
+
+Provided Variables
+    - mesh [fvMesh]
+
+\*---------------------------------------------------------------------------*/
+
+Foam::Info << "Create mesh";
+if (regionName != Foam::polyMesh::defaultRegion)
+{
+    Foam::Info << ' ' << regionName;
+}
+Foam::Info << " for time = " << runTime.timeName() << Foam::nl;
+
+Foam::fvMesh mesh
+(
+    Foam::IOobject
+    (
+        regionName,
+        runTime.timeName(),
+        runTime,
+        Foam::IOobject::MUST_READ
+    ),
+    false
+);
+
+mesh.init(true);   // Initialise all (lower levels and current)
+
+Foam::Info << Foam::endl;
+
+
+// ************************************************************************* //

applications/utilities/mesh/manipulation/transformPoints/transformPoints.C

@@ -6,7 +6,7 @@
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
     Copyright (C) 2011-2016 OpenFOAM Foundation
-    Copyright (C) 2017-2020 OpenCFD Ltd.
+    Copyright (C) 2017-2021 OpenCFD Ltd.
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -79,6 +79,7 @@ Note
 #include "surfaceFields.H"
 #include "ReadFields.H"
 #include "pointFields.H"
+#include "regionProperties.H"
 #include "transformField.H"
 #include "transformGeometricField.H"
 #include "axisAngleRotation.H"
@@ -99,18 +100,18 @@ void readAndRotateFields
 )
 {
     ReadFields(mesh, objects, flds);
-    forAll(flds, i)
+    for (GeoField& fld : flds)
     {
-        Info<< "Transforming " << flds[i].name() << endl;
-        const dimensionedTensor dimT("t", flds[i].dimensions(), rotT);
-        transform(flds[i], dimT, flds[i]);
+        Info<< "Transforming " << fld.name() << endl;
+        const dimensionedTensor dimT("t", fld.dimensions(), rotT);
+        transform(fld, dimT, fld);
     }
 }
 
 
-void rotateFields(const argList& args, const Time& runTime, const tensor& T)
+void rotateFields(const word& regionName, const Time& runTime, const tensor& T)
 {
-    #include "createNamedMesh.H"
+    #include "createRegionMesh.H"
 
     // Read objects in time directory
     IOobjectList objects(mesh, runTime.timeName());
@@ -300,7 +301,7 @@ int main(int argc, char *argv[])
     // Compatibility with surfaceTransformPoints
     argList::addOptionCompat("scale", {"write-scale", 0});
 
-    #include "addRegionOption.H"
+    #include "addAllRegionOptions.H"
     #include "setRootCase.H"
 
     const bool doRotateFields = args.found("rotateFields");
@@ -336,16 +337,10 @@ int main(int argc, char *argv[])
         }
     }
 
+    // ------------------------------------------------------------------------
+
     #include "createTime.H"
 
-    word regionName = polyMesh::defaultRegion;
-    fileName meshDir = polyMesh::meshSubDir;
-
-    if (args.readIfPresent("region", regionName))
-    {
-        meshDir = regionName/polyMesh::meshSubDir;
-    }
-
     if (args.found("time"))
     {
         if (args["time"] == "constant")
@@ -359,6 +354,25 @@ int main(int argc, char *argv[])
         }
     }
 
+    // Handle -allRegions, -regions, -region
+    #include "getAllRegionOptions.H"
+
+    // ------------------------------------------------------------------------
+
+    forAll(regionNames, regioni)
+    {
+        const word& regionName = regionNames[regioni];
+        const word& regionDir =
+        (
+            regionName == polyMesh::defaultRegion ? word::null : regionName
+        );
+        const fileName meshDir = regionDir/polyMesh::meshSubDir;
+
+        if (regionNames.size() > 1)
+        {
+            Info<< "region=" << regionName << nl;
+        }
+
         pointIOField points
         (
             IOobject
@@ -420,7 +434,7 @@ int main(int argc, char *argv[])
 
             if (doRotateFields)
             {
-            rotateFields(args, runTime, rot);
+                rotateFields(regionName, runTime, rot);
             }
         }
         else if (args.found("rotate-angle"))
@@ -444,7 +458,7 @@ int main(int argc, char *argv[])
 
             if (doRotateFields)
             {
-            rotateFields(args, runTime, rot);
+                rotateFields(regionName, runTime, rot);
             }
         }
         else if (args.readIfPresent("rollPitchYaw", v))
@@ -461,7 +475,7 @@ int main(int argc, char *argv[])
 
             if (doRotateFields)
             {
-            rotateFields(args, runTime, rot);
+                rotateFields(regionName, runTime, rot);
             }
         }
         else if (args.readIfPresent("yawPitchRoll", v))
@@ -478,7 +492,7 @@ int main(int argc, char *argv[])
 
             if (doRotateFields)
             {
-            rotateFields(args, runTime, rot);
+                rotateFields(regionName, runTime, rot);
             }
         }
 
@@ -495,8 +509,11 @@ int main(int argc, char *argv[])
         // Set the precision of the points data to 10
         IOstream::defaultPrecision(max(10u, IOstream::defaultPrecision()));
 
-    Info<< "Writing points into directory " << points.path() << nl << endl;
+        Info<< "Writing points into directory "
+            << runTime.relativePath(points.path()) << nl
+            << endl;
         points.write();
+    }
 
     Info<< nl << "End" << nl << endl;