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/*=========================================================================
Program: Visualization Toolkit
Module: TestButterflyScalars.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.
=========================================================================*/
// Test that no scalar overflow occurs with ButterflySubdivision
#include "vtkSmartPointer.h"
#include "vtkCylinderSource.h"
#include "vtkPolyData.h"
#include "vtkPointData.h"
#include "vtkUnsignedCharArray.h"
#include "vtkFloatArray.h"
#include "vtkIntArray.h"
#include "vtkPolyDataMapper.h"
#include "vtkButterflySubdivisionFilter.h"
#include "vtkLoopSubdivisionFilter.h"
#include "vtkTriangleFilter.h"
#include "vtkPolyDataMapper.h"
#include "vtkRenderWindow.h"
#include "vtkRenderer.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkRegressionTestImage.h"
//----------------------------------------------------------------------------
int TestButterflyScalars(int argc, char * argv[])
{
//Defining a cylinder source.
vtkSmartPointer<vtkCylinderSource> cylinderSource =
vtkSmartPointer<vtkCylinderSource>::New();
cylinderSource->Update();
vtkSmartPointer<vtkTriangleFilter> triangles =
vtkSmartPointer<vtkTriangleFilter>::New();
triangles->SetInputConnection(cylinderSource->GetOutputPort());
triangles->Update();
vtkSmartPointer<vtkPolyData> originalMesh;
originalMesh = triangles->GetOutput();
vtkSmartPointer<vtkUnsignedCharArray> colors =
vtkSmartPointer<vtkUnsignedCharArray>::New();
colors->SetNumberOfComponents(3);
colors->SetNumberOfTuples(originalMesh->GetNumberOfPoints());
colors->SetName("Colors");
//Loop to select colors for each of the points in the polydata.
for (int i = 0; i < originalMesh->GetNumberOfPoints(); i++)
{
if (i > 0 && i < 5)
{
//Black
colors->InsertTuple3(i, 255, 255, 0);
}
else if (i > 4 && i < 10)
{
//Blue
colors->InsertTuple3(i, 0, 0, 255);
}
else if (i > 9 && i < 300)
{
//Red
colors->InsertTuple3(i, 255, 0, 0);
}
else
{
colors->InsertTuple3(i, 255, 0, 0);
}
}
originalMesh->GetPointData()->SetScalars(colors);
//Subdivision.
int numberOfSubdivisions = 4;
vtkSmartPointer<vtkButterflySubdivisionFilter> subdivisionFilter =
vtkSmartPointer<vtkButterflySubdivisionFilter>::New();
subdivisionFilter->SetNumberOfSubdivisions(numberOfSubdivisions);
subdivisionFilter->SetInputData(originalMesh);
subdivisionFilter->Update();
vtkSmartPointer<vtkRenderWindow> renderWindow =
vtkSmartPointer<vtkRenderWindow>::New();
vtkSmartPointer<vtkRenderer> renderer =
vtkSmartPointer<vtkRenderer>::New();
vtkSmartPointer<vtkRenderWindowInteractor> renderWindowInteractor =
vtkSmartPointer<vtkRenderWindowInteractor>::New();
renderWindowInteractor->SetRenderWindow(renderWindow);
//Create a mapper and actor
vtkSmartPointer<vtkPolyDataMapper> mapper =
vtkSmartPointer<vtkPolyDataMapper>::New();
mapper->SetInputConnection(subdivisionFilter->GetOutputPort());
vtkSmartPointer<vtkActor> actor =
vtkSmartPointer<vtkActor>::New();
actor->SetMapper(mapper);
renderer->AddActor(actor);
renderer->SetBackground(0, 0, 0);
renderer->ResetCamera();
renderWindow->AddRenderer(renderer);
renderWindow->Render();
int testStatus = vtkRegressionTestImage(renderWindow.GetPointer());
if (testStatus == vtkRegressionTester::DO_INTERACTOR)
{
renderWindowInteractor->Start();
}
return (testStatus ? EXIT_SUCCESS : EXIT_FAILURE);
}
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