[EDF24911] : StaticMesh option in Ensight Reader + Force Static Mesh Plugin. Synchron...

[modules/paravis.git] / src / Plugins / StaticMesh / plugin / StaticMeshModule / vtkForceStaticMesh.cxx

diff --git a/src/Plugins/StaticMesh/plugin/StaticMeshModule/vtkForceStaticMesh.cxx b/src/Plugins/StaticMesh/plugin/StaticMeshModule/vtkForceStaticMesh.cxx
new file mode 100644 (file)
index 0000000..de4ced0
--- /dev/null
+++ b/src/Plugins/StaticMesh/plugin/StaticMeshModule/vtkForceStaticMesh.cxx
@@ -0,0 +1,110 @@
+/*=========================================================================
+
+  Program:   Visualization Toolkit
+  Module:    vtkForceStaticMesh.cxx
+
+  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
+  All rights reserved.
+  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
+
+     This software is distributed WITHOUT ANY WARRANTY; without even
+     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+     PURPOSE.  See the above copyright notice for more information.
+
+=========================================================================*/
+
+#include "vtkForceStaticMesh.h"
+
+#include <vtkCellData.h>
+#include <vtkInformation.h>
+#include <vtkInformationVector.h>
+#include <vtkMultiBlockDataSet.h>
+#include <vtkObjectFactory.h>
+#include <vtkPointData.h>
+#include <vtkUnstructuredGrid.h>
+#include <vtksys/SystemTools.hxx>
+
+vtkStandardNewMacro(vtkForceStaticMesh);
+
+//------------------------------------------------------------------------------
+void vtkForceStaticMesh::PrintSelf(ostream& os, vtkIndent indent)
+{
+  this->Superclass::PrintSelf(os, indent);
+  os << indent << "ForceCacheComputation: " << (this->ForceCacheComputation ? "on" : "off") << endl;
+}
+
+//------------------------------------------------------------------------------
+int vtkForceStaticMesh::FillInputPortInformation(int, vtkInformation* info)
+{
+  info->Set(vtkAlgorithm::INPUT_REQUIRED_DATA_TYPE(), "vtkDataObject");
+  return 1;
+}
+
+//------------------------------------------------------------------------------
+int vtkForceStaticMesh::RequestData(vtkInformation* vtkNotUsed(request),
+  vtkInformationVector** inputVector, vtkInformationVector* outputVector)
+{
+  vtkUnstructuredGrid* input = vtkUnstructuredGrid::GetData(inputVector[0]);
+  vtkMultiBlockDataSet* inputMB = vtkMultiBlockDataSet::GetData(inputVector[0]);
+
+  // Recover the first block
+  if (inputMB && inputMB->GetNumberOfBlocks() >= 1)
+  {
+    input = vtkUnstructuredGrid::SafeDownCast(inputMB->GetBlock(0));
+  }
+
+  if (!input)
+  {
+    vtkErrorMacro("Input is invalid, it should be either an unstructured grid or a multiblock a unstructured grid in the first block");
+    return 0;
+  }
+
+  if (inputMB && inputMB->GetNumberOfBlocks() > 1)
+  {
+    vtkWarningMacro("Only the first block will be passed");
+  }
+
+  vtkUnstructuredGrid* output = vtkUnstructuredGrid::GetData(outputVector);
+
+  bool validCache = this->CacheInitialized;
+  if (validCache)
+  {
+    if (input->GetNumberOfPoints() != this->Cache->GetNumberOfPoints())
+    {
+      vtkWarningMacro("Cache has been invalidated, the number of points in input changed, from " << this->Cache->GetNumberOfPoints() << " to " << input->GetNumberOfPoints());
+      validCache = false;
+    }
+    if (input->GetNumberOfCells() != this->Cache->GetNumberOfCells())
+    {
+      vtkWarningMacro("Cache has been invalidated, the number of cells in input changed, from " << this->Cache->GetNumberOfCells() << " to " << input->GetNumberOfCells());
+      validCache = false;
+    }
+  }
+
+  if (this->ForceCacheComputation || !validCache)
+  {
+    // Cache is invalid
+    if (vtksys::SystemTools::HasEnv("VTK_DEBUG_STATIC_MESH"))
+    {
+      vtkWarningMacro("Building static mesh cache");
+    }
+
+    this->Cache->DeepCopy(input);
+    this->CacheInitialized = true;
+  }
+  else
+  {
+    // Cache mesh is up to date, use it to generate data
+    if (vtksys::SystemTools::HasEnv("VTK_DEBUG_STATIC_MESH"))
+    {
+      vtkWarningMacro("Using static mesh cache");
+    }
+
+    this->Cache->GetPointData()->ShallowCopy(input->GetPointData());
+    this->Cache->GetCellData()->ShallowCopy(input->GetCellData());
+    this->Cache->GetFieldData()->ShallowCopy(input->GetFieldData());
+  }
+
+  output->ShallowCopy(this->Cache);
+  return 1;
+}