foamToEnsightParts: added -index option, streamlined IOobject usage, fixed typo

applications/utilities/postProcessing/dataConversion/foamToEnsightParts/foamToEnsightParts.C

@@ -39,6 +39,10 @@ Usage
     @param -zeroTime \n
     Include the often incomplete initial conditions.
 
+    @param -index \<start\>\n
+    Ignore the time index contained in the time file and use a
+    simple indexing when creating the @c Ensight/data/######## files.
+
 Note
     - no parallel data.
     - writes to @a Ensight directory to avoid collisions with foamToEnsight.
@@ -70,6 +74,7 @@ int main(int argc, char *argv[])
     timeSelector::addOptions(true, false);
     argList::noParallel();
     argList::validOptions.insert("ascii", "");
+    argList::validOptions.insert("index",  "start");
 
     const word volFieldTypes[] =
     {
@@ -104,6 +109,15 @@ int main(int argc, char *argv[])
         format = IOstream::ASCII;
     }
 
+    // control for renumbering iterations
+    bool optIndex = false;
+    label indexingNumber = 0;
+    if (args.options().found("index"))
+    {
+        optIndex = true;
+        indexingNumber = readLabel(IStringStream(args.options()["index"])());
+    }
+
     fileName ensightDir = args.rootPath()/args.globalCaseName()/"Ensight";
     fileName dataDir = ensightDir/"data";
     fileName caseFileName = "Ensight.case";

applications/utilities/postProcessing/dataConversion/foamToEnsightParts/getTimeIndex.H

-// Read time index from */uniform/time,
-// but treat 0 and constant specially
+// Read time index from */uniform/time, but treat 0 and constant specially
+// or simply increment from the '-index' option if it was supplied
 
     label timeIndex = 0;
 
-    if
+    if (optIndex)
+    {
+        timeIndex = indexingNumber++;
+    }
+    else if
     (
         runTime.timeName() != "constant"
      && runTime.timeName() != "0"
@@ -22,19 +26,8 @@
 
         if (io.headerOk())
         {
-            IOdictionary timeObject
-            (
-                IOobject
-                (
-                    "time",
-                    runTime.timeName(),
-                    "uniform",
-                    runTime,
-                    IOobject::MUST_READ,
-                    IOobject::NO_WRITE,
-                    false
-                )
-            );
+            io.readOpt() = IOobject::MUST_READ;
+            IOdictionary timeObject(io);
 
             timeObject.lookup("index") >> timeIndex;
         }

applications/utilities/postProcessing/dataConversion/foamToEnsightParts/moveMesh.H

 {
-    IOobject ioPoints
+    IOobject io
     (
         "points",
         runTime.timeName(),
@@ -7,21 +7,11 @@
         mesh
     );
 
-    if (ioPoints.headerOk())
+    if (io.headerOk())
     {
-        // Reading new points
-        pointIOField newPoints
-        (
-            IOobject
-            (
-                "points",
-                mesh.time().timeName(),
-                polyMesh::meshSubDir,
-                mesh,
-                IOobject::MUST_READ,
-                IOobject::NO_WRITE
-            )
-        );
+        // Read new points
+        io.readOpt() = IOobject::MUST_READ;
+        pointIOField newPoints(io);
 
         mesh.movePoints(newPoints);
     }

applications/utilities/postProcessing/dataConversion/foamToEnsightParts/validateFields.H

@@ -5,7 +5,8 @@ forAllIter(HashTable<word>, volumeFields, fieldIter)
     const word& fieldName = fieldIter.key();
     const word& fieldType = fieldIter();
 
-    if (fieldName.size() > 2 &&  fieldName(fieldName.size() - 2, 2) != "_0")
+    // ignore _0 fields
+    if (fieldName.size() > 2 && fieldName(fieldName.size() - 2, 2) == "_0")
     {
         volumeFields.erase(fieldIter);
     }