Method vtkCompassRepresentation

Interaction/Widgets/vtkCompassRepresentation.cxx:36–123

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//------------------------------------------------------------------------------
vtkCompassRepresentation::vtkCompassRepresentation()
{
  // The coordinates defining the compass
  this->Point1Coordinate = vtkCoordinate::New();
  this->Point1Coordinate->SetCoordinateSystemToNormalizedViewport();
  this->Point1Coordinate->SetValue(0.80, 0.80, 0.0);

  this->Point2Coordinate = vtkCoordinate::New();
  this->Point2Coordinate->SetCoordinateSystemToNormalizedViewport();
  this->Point2Coordinate->SetValue(0.99, 0.99, 0.0);

  // Default configuration
  this->OuterRadius = 0.9;
  this->InnerRadius = 0.75;

  this->TiltRepresentation = vtkSmartPointer<vtkCenteredSliderRepresentation>::New();
  this->TiltRepresentation->GetPoint1Coordinate()->SetCoordinateSystemToViewport();
  this->TiltRepresentation->GetPoint2Coordinate()->SetCoordinateSystemToViewport();
  this->TiltRepresentation->SetMinimumValue(-90);
  this->TiltRepresentation->SetMaximumValue(90);
  this->TiltRepresentation->SetValue(0);
  this->TiltRepresentation->SetTitleText("tilt");

  this->DistanceRepresentation = vtkSmartPointer<vtkCenteredSliderRepresentation>::New();
  this->DistanceRepresentation->GetPoint1Coordinate()->SetCoordinateSystemToViewport();
  this->DistanceRepresentation->GetPoint2Coordinate()->SetCoordinateSystemToViewport();
  this->DistanceRepresentation->SetMinimumValue(0);
  this->DistanceRepresentation->SetMaximumValue(2.0);
  this->DistanceRepresentation->SetValue(1.0);
  this->DistanceRepresentation->SetTitleText("dist");

  // The points and the transformation for the points. There are a total of
  // 73 points two rings of 340 degrees in increments of 10 plus three extra
  // points
  this->XForm = vtkTransform::New();
  this->Points = vtkPoints::New();
  this->Points->SetNumberOfPoints(73);

  this->BuildRing();

  this->RingXForm = vtkTransformPolyDataFilter::New();
  this->RingXForm->SetInputData(this->Ring);
  this->RingXForm->SetTransform(this->XForm);

  this->RingMapper = vtkPolyDataMapper2D::New();
  this->RingMapper->SetInputConnection(this->RingXForm->GetOutputPort());

  this->RingProperty = vtkProperty2D::New();
  this->RingProperty->SetOpacity(0.5);

  this->RingActor = vtkActor2D::New();
  this->RingActor->SetMapper(this->RingMapper);
  this->RingActor->SetProperty(this->RingProperty);

  this->SelectedProperty = vtkProperty2D::New();
  this->SelectedProperty->SetOpacity(0.8);

  this->LabelProperty = vtkTextProperty::New();