Added ability to probe filter to allow disabling of passing field data.

There were use-cases when passing the input field data can cause problems.
Adding API to disable the default behavior as needed.

Also fix vtkCompositeDataProbeFilter to respect PassCellArrays and
PassPointArrays flags (BUG #0014613).

Change-Id: I9d3acc34dc945858198c9abd244d8a7a4cb018ef

Filters/Core/vtkCompositeDataProbeFilter.cxx

@@ -131,6 +131,7 @@ int vtkCompositeDataProbeFilter::RequestData(
     idx++;
     }
 
+  this->PassAttributeData(input, sourceComposite, output);
   return 1;
 }
 //----------------------------------------------------------------------------

Filters/Core/vtkProbeFilter.cxx

@@ -55,6 +55,7 @@ vtkProbeFilter::vtkProbeFilter()
 
   this->PassCellArrays = 0;
   this->PassPointArrays = 0;
+  this->PassFieldArrays = 1;
 }
 
 //----------------------------------------------------------------------------
@@ -120,6 +121,14 @@ int vtkProbeFilter::RequestData(
 
   this->Probe(input, source, output);
 
+  this->PassAttributeData(input, source, output);
+  return 1;
+}
+
+//----------------------------------------------------------------------------
+void vtkProbeFilter::PassAttributeData(
+  vtkDataSet* input, vtkDataObject* vtkNotUsed(source), vtkDataSet* output)
+{
   // copy point data arrays
   if (this->PassPointArrays)
     {
@@ -140,7 +149,14 @@ int vtkProbeFilter::RequestData(
       }
     }
 
-  return 1;
+  if (this->PassFieldArrays)
+    {
+    // nothing to do, vtkDemandDrivenPipeline takes care of that.
+    }
+  else
+    {
+    output->GetFieldData()->Initialize();
+    }
 }
 
 //----------------------------------------------------------------------------
@@ -554,4 +570,6 @@ void vtkProbeFilter::PrintSelf(ostream& os, vtkIndent indent)
   os << indent << "ValidPointMaskArrayName: " << (this->ValidPointMaskArrayName?
     this->ValidPointMaskArrayName : "vtkValidPointMask") << "\n";
   os << indent << "ValidPoints: " << this->ValidPoints << "\n";
+  os << indent << "PassFieldArrays: "
+     << (this->PassFieldArrays? "On" : " Off") << "\n";
 }

Filters/Core/vtkProbeFilter.h

@@ -94,6 +94,14 @@ public:
   vtkSetMacro(PassPointArrays, int);
   vtkGetMacro(PassPointArrays, int);
 
+
+  // Description:
+  // Set whether to pass the field-data arrays from the Input i.e. the input
+  // providing the geometry to the output. On by default.
+  vtkSetMacro(PassFieldArrays, int);
+  vtkBooleanMacro(PassFieldArrays, int);
+  vtkGetMacro(PassFieldArrays, int);
+
 //BTX
 protected:
   vtkProbeFilter();
@@ -101,6 +109,7 @@ protected:
 
   int PassCellArrays;
   int PassPointArrays;
+  int PassFieldArrays;
 
   int SpatialMatch;
 
@@ -111,6 +120,12 @@ protected:
   virtual int RequestUpdateExtent(vtkInformation *, vtkInformationVector **,
     vtkInformationVector *);
 
+  // Description:
+  // Call at end of RequestData() to pass attribute data respecting the
+  // PassCellArrays, PassPointArrays, PassFieldArrays flags.
+  void PassAttributeData(
+    vtkDataSet* input, vtkDataObject* source, vtkDataSet* output);
+
   // Description:
   // Equivalent to calling InitializeForProbing(); ProbeEmptyPoints().
   void Probe(vtkDataSet *input, vtkDataSet *source, vtkDataSet *output);