Method SetAxisHighlightPosition

Views/Infovis/vtkParallelCoordinatesView.cxx:222–264

}

int vtkParallelCoordinatesView::SetAxisHighlightPosition(
  vtkParallelCoordinatesRepresentation* rep, int position)
{
  int numAxes = rep->GetNumberOfAxes();

  if (numAxes <= 0)
    return -1;

  double p1[2], p2[2];
  rep->GetPositionAndSize(p1, p2);
  double xpos = rep->GetXCoordinateOfPosition(position);

  if (xpos < 0 || position < 0 || position >= numAxes)
  {
    this->HighlightSource->SetBounds(-1, -1, -1, -1, -1, -1);
    this->HighlightActor->VisibilityOff();
    return -1;
  }
  else
  {
    double xmargin = .3 * p2[0] / static_cast<double>(numAxes);
    double ymargin = .05 * p2[1];
    if (this->AxisHighlightPosition == VTK_HIGHLIGHT_CENTER)
    {
      this->HighlightSource->SetBounds(
        xpos - xmargin, xpos + xmargin, p1[1] + ymargin, p1[1] + p2[1] - ymargin, 0, 0);
    }
    else if (this->AxisHighlightPosition == VTK_HIGHLIGHT_MIN)
    {
      this->HighlightSource->SetBounds(
        xpos - xmargin, xpos + xmargin, p1[1] - ymargin, p1[1] + ymargin, 0, 0);
    }
    else if (this->AxisHighlightPosition == VTK_HIGHLIGHT_MAX)
    {
      this->HighlightSource->SetBounds(
        xpos - xmargin, xpos + xmargin, p1[1] + p2[1] - ymargin, p1[1] + p2[1] + ymargin, 0, 0);
    }
    this->HighlightSource->Update();
    this->HighlightActor->VisibilityOn();
  }

  return position;
}

int vtkParallelCoordinatesView::SetAxisHighlightPosition(
  vtkParallelCoordinatesRepresentation* rep, double position)