ENH: extended runTimePostProcessing (#1206)

- Extended runTimePostProcessing to include access to "live"
  simulation objects such a geometry patches and sampled surfaces
  stored on the "functionObjectObjects" registry.

- Add 'live' runTimePostProcessing of cloud data.
  Extracts position and fields from the cloud via its objectRegistry writer

- For the "live" simulation objects, there are two new volume filters
  that work directly with the OpenFOAM volume fields:
      * iso-surface
      * cutting planes
  Both use the VTK algorithms directly and support multiple values.
  Eg, can make multiple iso-levels or multiple planes parallel to each
  other.

- When VTK has been compiled with MPI-support, parallel rendering will
  be used.

- Additional title text properties (shadow, italic etc)

- Simplified handling of scalar-bar and visibility switches

- Support multiple text positions. Eg, for adding watermark text.

tutorials/lagrangian/coalChemistryFoam/simplifiedSiwek/system/controlDict

@@ -53,8 +53,9 @@ maxDeltaT       1;
 
 functions
 {
+    #include "dataCloud"
     #include "vtkCloud"
-    // #include "dataCloud"
+
     #include "runTimePostProcessing"
 }
 

tutorials/lagrangian/coalChemistryFoam/simplifiedSiwek/system/runTimePostProcessing

@@ -2,9 +2,11 @@
 
 postPro1
 {
-    type            runTimePostProcessing;
-    libs            ("librunTimePostProcessing.so");
-    writeControl    writeTime;
+    #includeEtc "caseDicts/postProcessing/visualization/runTimePostPro.cfg"
+
+    // parallel    false;
+    // debug  true;
+
     output
     {
         name        image;
@@ -23,10 +25,10 @@ postPro1
 
         parallelProjection  yes;
 
-        focalPoint  (0.251 0.415 0.05);
-        position    (0.251 0.415 2.218);
+        focalPoint  (0.25 0.42 0.05);
+        position    (0.15 0.42 2.5);
         up          (0 1 0);
-        zoom        1;
+        zoom        1.5;
     }
 
     // Default colours
@@ -34,13 +36,7 @@ postPro1
     // they are locally overridden
     colours
     {
-        background  (0.5 0.5 0.5);
-        background2 (0.7 0.7 0.7);
-        text        (1 1 1);
-        edge        (1 0 0);
-        surface     (0.5 0.5 0.5);
-        line        (1 0 0);
-        point       (0.5 0.5 0.5);
+        ${..colourScheme.greyGradient};
     }
 
     // Points (cloud) data
@@ -48,55 +44,69 @@ postPro1
     {
         cloud1
         {
-            type            functionObjectCloud;
-            functionObject  cloudWrite1;
+            type            cloud;
             cloud           coalCloud1;
-            colourMap       blueWhiteRed;
+            colourMap       coolToWarm;
             representation  sphere;
-            maxGlyphLength  0.05;
-            visible         yes;
+            maxGlyphLength  0.025;
             featureEdges    no;
             colourBy        field;
             colourField     T;
             field           T;
             range           (290 410);
             opacity         1;
+
             scalarBar
             {
-                visible         yes;
+                visible         true;
                 vertical        yes;
                 position        (0.8 0.1);
                 fontSize        12;
+                titleSize       24;
                 title           "Temperature [K]";
                 labelFormat     "%.0f";
-                numberOfLabels  8;
+                numberOfLabels  9;
+                bold            false;
             }
         }
     }
 
-/* Future...
+    // Surface data
     surfaces
     {
-        container
+        patches
         {
             type            patches;
             patches         (".*");
             renderMode      phong;
             representation  surface;
-            edgeColour      (0 0 0);
-            visible         yes;
+            colourBy        colour;
+            field           U;
+            range           (0 40);
             featureEdges    yes;
-            opacity         0.25;
+            edgeColour      (0 0 0);
+            // Fails in parallel:  opacity         0.25;
+        }
+
+        k
+        {
+            type            isoSurface;
+            renderMode      phong;
+            representation  surface;
+            field           k;
+            values          ( 100 );
+            colourField     T;
+            colourBy        field;
+            range           (290 410);
+            smooth          true;
         }
     }
-*/
 
     // Text data
     text
     {
         text1
         {
-            visible     yes;
             string      "simplifiedSiwek";
             position    (0.1 0.05);
             size        24;