File: TestLineSource.cxx

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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    TestLineSource.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 <vtkMinimalStandardRandomSequence.h>
#include <vtkSmartPointer.h>
#include <vtkLineSource.h>

int TestLineSource(int vtkNotUsed(argc), char *vtkNotUsed(argv)[])
{
  vtkSmartPointer<vtkMinimalStandardRandomSequence> randomSequence
    = vtkSmartPointer<vtkMinimalStandardRandomSequence>::New();
  randomSequence->SetSeed(1);

  vtkSmartPointer<vtkLineSource> lineSource
    = vtkSmartPointer<vtkLineSource>::New();
  lineSource->SetResolution(8);

  lineSource->SetOutputPointsPrecision(vtkAlgorithm::SINGLE_PRECISION);

  double point1[3];
  for(unsigned int i = 0; i < 3; ++i)
  {
    randomSequence->Next();
    point1[i] = randomSequence->GetValue();
  }
  lineSource->SetPoint1(point1);

  double point2[3];
  for(unsigned int i = 0; i < 3; ++i)
  {
    randomSequence->Next();
    point2[i] = randomSequence->GetValue();
  }
  lineSource->SetPoint2(point2);

  lineSource->Update();

  vtkSmartPointer<vtkPolyData> polyData = lineSource->GetOutput();
  vtkSmartPointer<vtkPoints> outputPoints = polyData->GetPoints();

  if(outputPoints->GetDataType() != VTK_FLOAT)
  {
    return EXIT_FAILURE;
  }

  lineSource->SetOutputPointsPrecision(vtkAlgorithm::DOUBLE_PRECISION);

  for(unsigned int i = 0; i < 3; ++i)
  {
    randomSequence->Next();
    point1[i] = randomSequence->GetValue();
  }
  lineSource->SetPoint1(point1);

  for(unsigned int i = 0; i < 3; ++i)
  {
    randomSequence->Next();
    point2[i] = randomSequence->GetValue();
  }
  lineSource->SetPoint2(point2);

  lineSource->Update();

  polyData = lineSource->GetOutput();
  outputPoints = polyData->GetPoints();

  if(outputPoints->GetDataType() != VTK_DOUBLE)
  {
    return EXIT_FAILURE;
  }

  lineSource->SetOutputPointsPrecision(vtkAlgorithm::SINGLE_PRECISION);

  vtkSmartPointer<vtkPoints> inputPoints = vtkSmartPointer<vtkPoints>::New();
  inputPoints->SetDataType(VTK_DOUBLE);

  for(unsigned int i = 0; i < 3; ++i)
  {
    randomSequence->Next();
    point1[i] = randomSequence->GetValue();
  }
  inputPoints->InsertNextPoint(point1);

  for(unsigned int i = 0; i < 3; ++i)
  {
    randomSequence->Next();
    point2[i] = randomSequence->GetValue();
  }
  inputPoints->InsertNextPoint(point2);

  lineSource->SetPoints(inputPoints);

  lineSource->Update();

  polyData = lineSource->GetOutput();
  outputPoints = polyData->GetPoints();

  if(outputPoints->GetDataType() != VTK_FLOAT)
  {
    return EXIT_FAILURE;
  }

  inputPoints->Reset();

  lineSource->SetOutputPointsPrecision(vtkAlgorithm::DOUBLE_PRECISION);

  for(unsigned int i = 0; i < 3; ++i)
  {
    randomSequence->Next();
    point1[i] = randomSequence->GetValue();
  }
  inputPoints->InsertNextPoint(point1);

  for(unsigned int i = 0; i < 3; ++i)
  {
    randomSequence->Next();
    point2[i] = randomSequence->GetValue();
  }
  inputPoints->InsertNextPoint(point2);

  lineSource->SetPoints(inputPoints);

  lineSource->Update();

  polyData = lineSource->GetOutput();
  outputPoints = polyData->GetPoints();

  if(outputPoints->GetDataType() != VTK_DOUBLE)
  {
    return EXIT_FAILURE;
  }

  return EXIT_SUCCESS;
}