add region option

applications/utilities/postProcessing/sampling/sample/sample.C

@@ -97,10 +97,11 @@ using namespace Foam;
 int main(int argc, char *argv[])
 {
     timeSelector::addOptions();
+#   include "addRegionOption.H"
 #   include "setRootCase.H"
 #   include "createTime.H"
     instantList timeDirs = timeSelector::select0(runTime, args);
-#   include "createMesh.H"
+#   include "createNamedMesh.H"
 
     IOsampledSets sSets
     (

applications/utilities/postProcessing/sampling/sample/sampleDict

@@ -105,6 +105,14 @@ sets
         end         (2 0.51  0.005);
         nPoints     10;
     }
+
+    somePoints
+    {
+        type    cloud;
+        axis    xyz;
+        points  ((0.049 0.049 0.005)(0.051 0.049 0.005));
+    }
+
 );