usVTKConverter.cpp

/****************************************************************************
 *
 * This file is part of the ustk software.
 * Copyright (C) 2016 - 2017 by Inria. All rights reserved.
 *
 * This software is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * ("GPL") version 2 as published by the Free Software Foundation.
 * See the file LICENSE.txt at the root directory of this source
 * distribution for additional information about the GNU GPL.
 *
 * For using ustk with software that can not be combined with the GNU
 * GPL, please contact Inria about acquiring a ViSP Professional
 * Edition License.
 *
 * This software was developed at:
 * Inria Rennes - Bretagne Atlantique
 * Campus Universitaire de Beaulieu
 * 35042 Rennes Cedex
 * France
 *
 * If you have questions regarding the use of this file, please contact
 * Inria at ustk@inria.fr
 *
 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 * Authors:
 * Marc Pouliquen
 *
 *****************************************************************************/
 
#include <visp3/ustk_gui/usVTKConverter.h>
 
#ifdef USTK_HAVE_VTK_QT
 
#include <vtkDataArray.h>
#include <vtkImageImport.h>
#include <vtkPointData.h>
 
void usVTKConverter::convert(const usImagePostScan3D<unsigned char> &postScanImage,
                             vtkSmartPointer<vtkImageData> &vtkPostScanImage, vtkSmartPointer<vtkImageImport> importer)
{
  if (importer == NULL) {
    importer = vtkSmartPointer<vtkImageImport>::New();
    importer->SetDataScalarTypeToUnsignedChar();
    importer->SetWholeExtent(0, postScanImage.getWidth() - 1, 0, postScanImage.getHeight() - 1, 0,
                             postScanImage.getNumberOfFrames() - 1);
    importer->SetDataExtentToWholeExtent();
    importer->SetNumberOfScalarComponents(1);
    importer->SetImportVoidPointer((void *)postScanImage.getConstData(), 1);
  } else
    importer->SetImportVoidPointer((void *)postScanImage.getConstData());
 
  importer->Update();
 
  vtkPostScanImage = importer->GetOutput();
  vtkPostScanImage->SetSpacing(postScanImage.getElementSpacingX(), postScanImage.getElementSpacingY(),
                               postScanImage.getElementSpacingZ());
}
 
void usVTKConverter::convert(const usImagePreScan3D<unsigned char> &preScanImage,
                             vtkSmartPointer<vtkImageData> &vtkPreScanImage, vtkSmartPointer<vtkImageImport> importer)
{
  if (importer == NULL) {
    importer = vtkSmartPointer<vtkImageImport>::New();
    importer->SetDataScalarTypeToUnsignedChar();
    importer->SetImportVoidPointer((void *)preScanImage.getConstData());
    importer->SetWholeExtent(0, preScanImage.getWidth() - 1, 0, preScanImage.getHeight() - 1, 0,
                             preScanImage.getNumberOfFrames() - 1);
    importer->SetDataExtentToWholeExtent();
    importer->SetNumberOfScalarComponents(1);
  } else
    importer->SetImportVoidPointer((void *)preScanImage.getConstData());
 
  importer->Update();
 
  vtkPreScanImage = importer->GetOutput();
}
 
void usVTKConverter::convert(vtkSmartPointer<vtkImageData> &vtkPostScanImage,
                             usImagePostScan2D<unsigned char> &postScanImage)
{
  // get dimentions/spacing of the 3D image.
  int imageDims[3];
  vtkPostScanImage->GetDimensions(imageDims);
  double spacing[3];
  vtkPostScanImage->GetSpacing(spacing);
 
  postScanImage.resize(imageDims[1], imageDims[0]);
 
  for (int i = 0; i < imageDims[0]; i++) {
    for (int j = 0; j < imageDims[1]; j++) {
      postScanImage[j][i] =
          (unsigned char)(vtkPostScanImage->GetScalarComponentAsDouble(i, imageDims[1] - j - 1, 0, 0));
    }
  }
 
  postScanImage.setWidthResolution(spacing[0]);
  postScanImage.setHeightResolution(spacing[1]);
}
 
void usVTKConverter::convert(const vpHomogeneousMatrix &vispMatrix, vtkMatrix4x4 *vtkMatrix)
{
  for (int i = 0; i < 4; i++)
    for (int j = 0; j < 4; j++)
      vtkMatrix->SetElement(i, j, vispMatrix[i][j]);
}
 
void usVTKConverter::convert(vtkMatrix4x4 *vtkMatrix, vpHomogeneousMatrix &vispMatrix)
{
  for (int i = 0; i < 4; i++)
    for (int j = 0; j < 4; j++)
      vispMatrix[i][j] = vtkMatrix->GetElement(i, j);
}
 
#endif