From 2cfc88fa03d524b1048e0450a2bad986179769a9 Mon Sep 17 00:00:00 2001
From: Mark Olesen <Mark.Olesen@esi-group.com>
Date: Tue, 12 Sep 2017 15:42:10 +0200
Subject: [PATCH] STYLE: paraview reader attempts to shallow copy nullptr
 (closes #586)

- Can occur if the selected geometry does not actually exist.
  A non-critical bug since paraview catches this anyhow and
  just emits a warning message.
---
 .../graphics/PVReaders/vtkPVFoam/vtkPVFoam.H           | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/applications/utilities/postProcessing/graphics/PVReaders/vtkPVFoam/vtkPVFoam.H b/applications/utilities/postProcessing/graphics/PVReaders/vtkPVFoam/vtkPVFoam.H
index 55ec9d73e1..226ff6b9bd 100644
--- a/applications/utilities/postProcessing/graphics/PVReaders/vtkPVFoam/vtkPVFoam.H
+++ b/applications/utilities/postProcessing/graphics/PVReaders/vtkPVFoam/vtkPVFoam.H
@@ -155,7 +155,10 @@ class vtkPVFoam
             vtkSmartPointer<dataType> getCopy() const
             {
                 auto copy = vtkSmartPointer<dataType>::New();
-                copy->ShallowCopy(vtkgeom);
+                if (vtkgeom)
+                {
+                    copy->ShallowCopy(vtkgeom);
+                }
                 return copy;
             }
 
@@ -163,7 +166,10 @@ class vtkPVFoam
             void reuse()
             {
                 dataset = vtkSmartPointer<dataType>::New();
-                dataset->ShallowCopy(vtkgeom);
+                if (vtkgeom)
+                {
+                    dataset->ShallowCopy(vtkgeom);
+                }
             }
 
             //- Set the geometry and make a shallow copy to dataset