ENH: ensightWrite, vtkWrite support for excluding fields and patches

- functionality similar to that provided by foamToEnsight, foamToVTK
  which allows blocking out patches (eg, outer walls, inlet/outlet)
  that are not particularly interesting to visualize

tutorials/incompressible/simpleFoam/motorBike/system/ensightWrite

@@ -12,6 +12,11 @@ ensightWrite
 
     writeControl    writeTime;
     writeInterval   1;
+
+    //patches       ( "motorBike.*" );
+
+    //- These patches are uninteresting
+    excludePatches  ( inlet outlet frontAndBack ".*[Ww]all" );
 }
 
 

tutorials/incompressible/simpleFoam/windAroundBuildings/system/vtkWrite

@@ -6,6 +6,10 @@ vtkWrite
     libs    (utilityFunctionObjects);
     log     true;
 
+    //- Write more frequent than fields
+    writeControl    timeStep;
+    writeInterval   25;
+
     // Fields to output (words or regex)
     fields  (U p "(k|epsilon|omega)");
 
@@ -21,9 +25,8 @@ vtkWrite
     //- Write cell ids as field - Default=true
     writeIds    false;
 
-    //- Write more frequent than fields
-    writeControl    timeStep;
-    writeInterval   25;
+    //- These patches are uninteresting
+    excludePatches ( inlet outlet frontAndBack );
 }
 
 subset
@@ -32,6 +35,10 @@ subset
     libs    (utilityFunctionObjects);
     log     true;
 
+    //- Write more frequent than fields
+    writeControl    timeStep;
+    writeInterval   25;
+
     // boundary    false;
 
     interpolate true;
@@ -42,9 +49,8 @@ subset
     //- Write cell ids as field - Default=true
     writeIds    false;
 
-    //- Write more frequent than fields
-    writeControl    timeStep;
-    writeInterval   25;
+    //- These patches are uninteresting
+    excludePatches ( inlet outlet frontAndBack );
 
     // Region of interest
     selection