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/*=========================================================================
Program: Visualization Toolkit
Module: TestPDFExporterContextPolyData.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 "vtkAbstractMapper.h"
#include "vtkAxis.h"
#include "vtkBandedPolyDataContourFilter.h"
#include "vtkBoundingBox.h"
#include "vtkCellData.h"
#include "vtkContextScene.h"
#include "vtkContextView.h"
#include "vtkFeatureEdges.h"
#include "vtkFloatArray.h"
#include "vtkInteractiveArea.h"
#include "vtkInteractorStyle.h"
#include "vtkLookupTable.h"
#include "vtkNew.h"
#include "vtkPDFExporter.h"
#include "vtkPen.h"
#include "vtkPointData.h"
#include "vtkPolyDataConnectivityFilter.h"
#include "vtkPolyDataItem.h"
#include "vtkRegressionTestImage.h"
#include "vtkRenderWindow.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkRenderer.h"
#include "vtkSmartPointer.h"
#include "vtkTestUtilities.h"
#include "vtkTestingInteractor.h"
#include "vtkTextProperty.h"
#include "vtkXMLPolyDataReader.h"
namespace
{
//------------------------------------------------------------------------------
vtkSmartPointer<vtkXMLPolyDataReader> ReadUVCDATPolyData(int argc, char* argv[])
{
const char* fileName = vtkTestUtilities::ExpandDataFileName(argc, argv, "Data/isofill_0.vtp");
vtkSmartPointer<vtkXMLPolyDataReader> reader = vtkSmartPointer<vtkXMLPolyDataReader>::New();
reader->SetFileName(fileName);
reader->Update();
delete[] fileName;
return reader;
}
//------------------------------------------------------------------------------
vtkSmartPointer<vtkPolyDataItem> CreateMapItem(int argc, char* argv[])
{
vtkSmartPointer<vtkXMLPolyDataReader> reader = ReadUVCDATPolyData(argc, argv);
vtkPolyData* poly = reader->GetOutput();
// Select point/cell data
double range[2];
int scalarMode = VTK_SCALAR_MODE_USE_POINT_DATA;
vtkDataArray* activeData = scalarMode == VTK_SCALAR_MODE_USE_POINT_DATA
? poly->GetPointData()->GetScalars()
: poly->GetCellData()->GetScalars();
activeData->GetRange(range, 0);
// Map scalars
vtkLookupTable* colorLut = activeData->GetLookupTable();
if (!colorLut)
{
activeData->CreateDefaultLookupTable();
colorLut = activeData->GetLookupTable();
colorLut->SetAlpha(1.0);
colorLut->SetRange(range[0], range[1]);
}
vtkUnsignedCharArray* mappedColors = colorLut->MapScalars(activeData, VTK_COLOR_MODE_DEFAULT, 0);
// Setup item
vtkSmartPointer<vtkPolyDataItem> polyItem = vtkSmartPointer<vtkPolyDataItem>::New();
polyItem->SetPolyData(poly);
polyItem->SetScalarMode(scalarMode);
polyItem->SetMappedColors(mappedColors);
mappedColors->Delete();
return polyItem;
}
//------------------------------------------------------------------------------
vtkSmartPointer<vtkPolyDataItem> CreateContourItem(int argc, char* argv[])
{
vtkSmartPointer<vtkXMLPolyDataReader> reader = ReadUVCDATPolyData(argc, argv);
vtkNew<vtkBandedPolyDataContourFilter> contour;
contour->SetInputConnection(reader->GetOutputPort());
contour->GenerateValues(20, 6, 40);
contour->ClippingOn();
contour->SetClipTolerance(0.);
contour->Update();
vtkNew<vtkPolyDataConnectivityFilter> connectivity;
connectivity->SetInputConnection(contour->GetOutputPort());
connectivity->SetExtractionModeToAllRegions();
connectivity->ColorRegionsOn();
connectivity->Update();
vtkNew<vtkPolyDataConnectivityFilter> extract;
extract->SetInputConnection(connectivity->GetOutputPort());
extract->ScalarConnectivityOn();
extract->SetScalarRange(6, 58);
vtkNew<vtkFeatureEdges> edge;
edge->SetInputConnection(extract->GetOutputPort());
edge->BoundaryEdgesOn();
edge->FeatureEdgesOff();
edge->ManifoldEdgesOff();
edge->NonManifoldEdgesOff();
edge->Update();
// Select point/cell data
double range[2];
int scalarMode = VTK_SCALAR_MODE_USE_CELL_DATA;
vtkPolyData* poly = edge->GetOutput();
vtkDataArray* activeData = scalarMode == VTK_SCALAR_MODE_USE_POINT_DATA
? poly->GetPointData()->GetScalars()
: poly->GetCellData()->GetScalars();
activeData->GetRange(range, 0);
// Map scalars
vtkLookupTable* colorLut = activeData->GetLookupTable();
if (!colorLut)
{
activeData->CreateDefaultLookupTable();
colorLut = activeData->GetLookupTable();
colorLut->SetAlpha(1.0);
colorLut->SetRange(range[0], range[1]);
}
vtkUnsignedCharArray* mappedColors = colorLut->MapScalars(activeData, VTK_COLOR_MODE_DEFAULT, 0);
// Setup item
vtkSmartPointer<vtkPolyDataItem> polyItem = vtkSmartPointer<vtkPolyDataItem>::New();
polyItem->SetPolyData(poly);
polyItem->SetScalarMode(scalarMode);
polyItem->SetMappedColors(mappedColors);
mappedColors->Delete();
return polyItem;
}
} // end anon namespace
/**
* Tests vtkPolyDataItem and shows its usage with an example. vtkPolyDataItem
* renders vtkPolyData primitives into a vtkContextScene directly (without the
* need of a vtkMapper).
*/
///////////////////////////////////////////////////////////////////////////////
int TestPDFExporterContextPolyData(int argc, char* argv[])
{
// Set up a 2D context view, context test object and add it to the scene
vtkNew<vtkContextView> view;
view->GetRenderer()->SetBackground(0.3, 0.3, 0.3);
view->GetRenderWindow()->SetSize(600, 400);
view->GetRenderWindow()->SetMultiSamples(0);
view->GetInteractor()->Initialize();
view->GetInteractor()->GetInteractorStyle()->SetCurrentRenderer(view->GetRenderer());
// Create the container item that handles view transform (aspect, interaction,
// etc.)
vtkNew<vtkInteractiveArea> area;
vtkSmartPointer<vtkPolyDataItem> mapItem = CreateMapItem(argc, argv);
vtkSmartPointer<vtkPolyDataItem> contourItem = CreateContourItem(argc, argv);
area->GetDrawAreaItem()->AddItem(mapItem);
area->GetDrawAreaItem()->AddItem(contourItem);
vtkBoundingBox bounds(mapItem->GetPolyData()->GetBounds());
area->SetDrawAreaBounds(
vtkRectd(bounds.GetBound(0), bounds.GetBound(2), bounds.GetLength(0), bounds.GetLength(1)));
area->SetFixedAspect(bounds.GetLength(0) / bounds.GetLength(1));
area->GetAxis(vtkAxis::BOTTOM)->SetTitle("X Axis");
area->GetAxis(vtkAxis::LEFT)->SetTitle("Y Axis");
area->GetAxis(vtkAxis::TOP)->SetVisible(false);
area->GetAxis(vtkAxis::RIGHT)->SetVisible(false);
for (int i = 0; i < 4; ++i)
{
vtkAxis* axis = area->GetAxis(static_cast<vtkAxis::Location>(i));
axis->GetLabelProperties()->SetColor(.6, .6, .9);
axis->GetTitleProperties()->SetColor(.6, .6, .9);
axis->GetPen()->SetColor(.6 * 255, .6 * 255, .9 * 255, 255);
axis->GetGridPen()->SetColor(.6 * 255, .6 * 255, .9 * 255, 128);
}
// Turn off the color buffer
view->GetScene()->SetUseBufferId(false);
view->GetScene()->AddItem(area);
view->Render();
std::string filename =
vtkTestingInteractor::TempDirectory + std::string("/TestPDFExporterContextPolyData.pdf");
vtkNew<vtkPDFExporter> exp;
exp->SetRenderWindow(view->GetRenderWindow());
exp->SetFileName(filename.c_str());
exp->Write();
vtkNew<vtkRenderWindowInteractor> iren;
iren->SetRenderWindow(view->GetRenderWindow());
view->GetRenderWindow()->SetMultiSamples(0);
view->GetRenderWindow()->GetInteractor()->Initialize();
view->GetRenderWindow()->GetInteractor()->Start();
return EXIT_SUCCESS;
}
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