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vtkWebUtilities.cxx
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vtkWebUtilities.cxx
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/*=========================================================================
Program: Visualization Toolkit
Module: vtkWebUtilities.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 "vtkWebUtilities.h"
#include "vtkPython.h" // Need to be first and used for Py_xxx macros
#include "vtkDataSet.h"
#include "vtkDataSetAttributes.h"
#include "vtkJavaScriptDataWriter.h"
#include "vtkMultiProcessController.h"
#include "vtkNew.h"
#include "vtkObjectFactory.h"
#include "vtkSplitColumnComponents.h"
#include "vtkTable.h"
#include <sstream>
vtkStandardNewMacro(vtkWebUtilities);
//------------------------------------------------------------------------------
vtkWebUtilities::vtkWebUtilities() = default;
//------------------------------------------------------------------------------
vtkWebUtilities::~vtkWebUtilities() = default;
//------------------------------------------------------------------------------
std::string vtkWebUtilities::WriteAttributesToJavaScript(int field_type, vtkDataSet* dataset)
{
if (dataset == nullptr ||
(field_type != vtkDataObject::POINT && field_type != vtkDataObject::CELL))
{
return "[]";
}
std::ostringstream stream;
vtkNew<vtkDataSetAttributes> clone;
clone->PassData(dataset->GetAttributes(field_type));
clone->RemoveArray("vtkValidPointMask");
vtkNew<vtkTable> table;
table->SetRowData(clone);
vtkNew<vtkSplitColumnComponents> splitter;
splitter->SetInputDataObject(table);
splitter->Update();
vtkNew<vtkJavaScriptDataWriter> writer;
writer->SetOutputStream(&stream);
writer->SetInputDataObject(splitter->GetOutputDataObject(0));
writer->SetVariableName(nullptr);
writer->SetIncludeFieldNames(false);
writer->Write();
return stream.str();
}
//------------------------------------------------------------------------------
std::string vtkWebUtilities::WriteAttributeHeadersToJavaScript(int field_type, vtkDataSet* dataset)
{
if (dataset == nullptr ||
(field_type != vtkDataObject::POINT && field_type != vtkDataObject::CELL))
{
return "[]";
}
std::ostringstream stream;
stream << "[";
vtkDataSetAttributes* dsa = dataset->GetAttributes(field_type);
vtkNew<vtkDataSetAttributes> clone;
clone->CopyAllocate(dsa, 0);
clone->RemoveArray("vtkValidPointMask");
vtkNew<vtkTable> table;
table->SetRowData(clone);
vtkNew<vtkSplitColumnComponents> splitter;
splitter->SetInputDataObject(table);
splitter->Update();
dsa = vtkTable::SafeDownCast(splitter->GetOutputDataObject(0))->GetRowData();
for (int cc = 0; cc < dsa->GetNumberOfArrays(); cc++)
{
const char* name = dsa->GetArrayName(cc);
if (cc != 0)
{
stream << ", ";
}
stream << "\"" << (name ? name : "") << "\"";
}
stream << "]";
return stream.str();
}
//------------------------------------------------------------------------------
void vtkWebUtilities::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
}
//------------------------------------------------------------------------------
void vtkWebUtilities::ProcessRMIs()
{
vtkWebUtilities::ProcessRMIs(1, 0);
}
//------------------------------------------------------------------------------
void vtkWebUtilities::ProcessRMIs(int reportError, int dont_loop)
{
Py_BEGIN_ALLOW_THREADS vtkMultiProcessController::GetGlobalController()->ProcessRMIs(
reportError, dont_loop);
Py_END_ALLOW_THREADS
}