Method ManageTextDisplay

Interaction/Widgets/vtkImagePlaneWidget.cxx:1300–1332

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//------------------------------------------------------------------------------
void vtkImagePlaneWidget::ManageTextDisplay()
{
  if (!this->DisplayText)
  {
    return;
  }

  if (this->State == vtkImagePlaneWidget::WindowLevelling)
  {
    auto result = vtk::format_to_n(this->TextBuff, VTK_IMAGE_PLANE_WIDGET_MAX_TEXTBUFF,
      "Window, Level: ( {:g}, {:g} )", this->CurrentWindow, this->CurrentLevel);
    *result.out = '\0';
  }
  else if (this->State == vtkImagePlaneWidget::Cursoring)
  {
    if (this->CurrentImageValue == VTK_DOUBLE_MAX)
    {
      auto result =
        vtk::format_to_n(this->TextBuff, VTK_IMAGE_PLANE_WIDGET_MAX_TEXTBUFF, "Off Image");
      *result.out = '\0';
    }
    else
    {
      auto result = vtk::format_to_n(this->TextBuff, VTK_IMAGE_PLANE_WIDGET_MAX_TEXTBUFF,
        "( {:g}, {:g}, {:g} ): {:g}", this->CurrentCursorPosition[0],
        this->CurrentCursorPosition[1], this->CurrentCursorPosition[2], this->CurrentImageValue);
      *result.out = '\0';
    }
  }

  this->TextActor->SetInput(this->TextBuff);
  this->TextActor->Modified();
}

//------------------------------------------------------------------------------
void vtkImagePlaneWidget::Push(double* p1, double* p2)