C++ (Cpp) Pointer::GetPointer Examples

Example #1

File: mitkAffineDataInteractor3D.cpp Project: Maggunator/MITK

bool mitk::AffineDataInteractor3D::ColorizeSurface(BaseRenderer::Pointer renderer, double scalar)
{
  BaseData::Pointer data = this->GetDataNode()->GetData();
  if(data.IsNull())
  {
    MITK_ERROR << "AffineInteractor3D: No data object present!";
    return false;
  }

  // Get the timestep to also support 3D+t
  int timeStep = 0;
  if (renderer.IsNotNull())
    timeStep = renderer->GetTimeStep(data);


  // If data is an mitk::Surface, extract it
  Surface::Pointer surface = dynamic_cast< Surface* >(data.GetPointer());
  vtkPolyData* polyData = NULL;
  if (surface.IsNotNull())
    polyData = surface->GetVtkPolyData(timeStep);

  if (polyData == NULL)
  {
    MITK_ERROR << "AffineInteractor3D: No poly data present!";
    return false;
  }

  vtkPointData* pointData = polyData->GetPointData();
  if (pointData == NULL)
  {
    MITK_ERROR << "AffineInteractor3D: No point data present!";
    return false;
  }

  vtkDataArray* scalars = pointData->GetScalars();
  if (scalars == NULL)
  {
    MITK_ERROR << "AffineInteractor3D: No scalars for point data present!";
    return false;
  }

  for (unsigned int i = 0; i < pointData->GetNumberOfTuples(); ++i)
  {
    scalars->SetComponent(i, 0, scalar);
  }

  polyData->Modified();
  pointData->Update();

  return true;
}

Example #2

File: mitkPlanarFigureInteractor.cpp Project: 151706061/MITK

void mitk::PlanarFigureInteractor::AddPoint(StateMachineAction*, InteractionEvent* interactionEvent)
{
  const mitk::InteractionPositionEvent* positionEvent = dynamic_cast<mitk::InteractionPositionEvent*>( interactionEvent );
  if ( positionEvent == nullptr )
    return;

  const DataNode::Pointer node = this->GetDataNode();
  const BaseData::Pointer data = node->GetData();

  /*
  * Added check for "initiallyplaced" due to bug 13097:
  *
  * There are two possible cases in which a point can be inserted into a PlanarPolygon:
  *
  * 1. The figure is currently drawn -> the point will be appended at the end of the figure
  * 2. A point is inserted at a userdefined position after the initial placement of the figure is finished
  *
  * In the second case we need to determine the proper insertion index. In the first case the index always has
  * to be -1 so that the point is appended to the end.
  *
  * These changes are necessary because of a mac os x specific issue: If a users draws a PlanarPolygon then the
  * next point to be added moves according to the mouse position. If then the user left clicks in order to add
  * a point one would assume the last move position is identical to the left click position. This is actually the
  * case for windows and linux but somehow NOT for mac. Because of the insertion logic of a new point in the
  * PlanarFigure then for mac the wrong current selected point is determined.
  *
  * With this check here this problem can be avoided. However a redesign of the insertion logic should be considered
  */

  bool isFigureFinished = false;
  data->GetPropertyList()->GetBoolProperty("initiallyplaced", isFigureFinished);

  bool selected = false;
  bool isEditable = true;

  node->GetBoolProperty("selected", selected);
  node->GetBoolProperty("planarfigure.iseditable", isEditable);

  if ( !selected || !isEditable )
  {
    return;
  }

  mitk::PlanarFigure *planarFigure = dynamic_cast<mitk::PlanarFigure *>(data.GetPointer());

  // We can't derive a new control point from a polyline of a Bezier curve
  // as all control points contribute to each polyline point.
  if (dynamic_cast<PlanarBezierCurve*>(planarFigure) != nullptr && isFigureFinished)
    return;

  const mitk::PlaneGeometry *planarFigureGeometry = planarFigure->GetPlaneGeometry();
  const mitk::AbstractTransformGeometry *abstractTransformGeometry =
    dynamic_cast< AbstractTransformGeometry * >( planarFigure->GetGeometry( 0 ) );

  if ( abstractTransformGeometry != nullptr)
    return;

  // If the planarFigure already has reached the maximum number
  if ( planarFigure->GetNumberOfControlPoints() >= planarFigure->GetMaximumNumberOfControlPoints() )
  {
    return;
  }

  // Extract point in 2D world coordinates (relative to PlaneGeometry of
  // PlanarFigure)
  Point2D point2D, projectedPoint;
  if ( !this->TransformPositionEventToPoint2D( positionEvent, planarFigureGeometry, point2D ) )
  {
    return;
  }

  // TODO: check segment of polyline we clicked in
  int nextIndex = -1;

  // We only need to check which position to insert the control point
  // when interacting with a PlanarPolygon. For all other types
  // new control points will always be appended

  const mitk::BaseRenderer *renderer = interactionEvent->GetSender();
  const PlaneGeometry *projectionPlane = renderer->GetCurrentWorldPlaneGeometry();

  if (dynamic_cast<mitk::PlanarPolygon*>(planarFigure) && isFigureFinished)
  {
    nextIndex = this->IsPositionOverFigure(
      positionEvent,
      planarFigure,
      planarFigureGeometry,
      projectionPlane,
      projectedPoint
      );
  }


  // Add point as new control point

  if ( planarFigure->IsPreviewControlPointVisible() )
  {
    point2D = planarFigure->GetPreviewControlPoint();
  }

  planarFigure->AddControlPoint( point2D, planarFigure->GetControlPointForPolylinePoint( nextIndex, 0 ) );

  if ( planarFigure->IsPreviewControlPointVisible() )
  {
    planarFigure->SelectControlPoint( nextIndex );
    planarFigure->ResetPreviewContolPoint();
  }

  // Re-evaluate features
  planarFigure->EvaluateFeatures();
  //this->LogPrintPlanarFigureQuantities( planarFigure );

  // Update rendered scene
  renderer->GetRenderingManager()->RequestUpdateAll();
}