Method SetWindowLevel

Interaction/Widgets/vtkImagePlaneWidget.cxx:1228–1263

------------------------------------------------------------------------------

//------------------------------------------------------------------------------
void vtkImagePlaneWidget::SetWindowLevel(double window, double level, int copy)
{
  if (copy)
  {
    this->CurrentWindow = window;
    this->CurrentLevel = level;
    return;
  }

  if (this->CurrentWindow == window && this->CurrentLevel == level)
  {
    return;
  }

  // if the new window is negative and the old window was positive invert table
  if (((window < 0 && this->CurrentWindow > 0) || (window > 0 && this->CurrentWindow < 0)) &&
    !this->UserControlledLookupTable)
  {
    this->InvertTable();
  }

  this->CurrentWindow = window;
  this->CurrentLevel = level;

  if (!this->UserControlledLookupTable)
  {
    double rmin = this->CurrentLevel - 0.5 * fabs(this->CurrentWindow);
    double rmax = rmin + fabs(this->CurrentWindow);
    this->LookupTable->SetTableRange(rmin, rmax);
  }

  if (this->Enabled)
  {
    this->Interactor->Render();
  }
}

//------------------------------------------------------------------------------
void vtkImagePlaneWidget::GetWindowLevel(double wl[2])