/**
If in region growing mode (m_ReferenceSlice != NULL), then
1. Calculate the new thresholds from mouse position (relative to first position)
2. Perform a new region growing and update the feedback contour
*/
bool mitk::RegionGrowingTool::OnMouseMoved( StateMachineAction*, InteractionEvent* interactionEvent )
{
if ( FeedbackContourTool::CanHandleEvent(interactionEvent) > 0.0 )
{
if ( m_ReferenceSlice.IsNotNull() && m_OriginalPicSlice )
{
mitk::InteractionPositionEvent* positionEvent = dynamic_cast<mitk::InteractionPositionEvent*>( interactionEvent );
//const PositionEvent* positionEvent = dynamic_cast<const PositionEvent*>(stateEvent->GetEvent());
if (positionEvent)
{
ApplicationCursor* cursor = ApplicationCursor::GetInstance();
if (!cursor) return false;
m_ScreenYDifference += cursor->GetCursorPosition()[1] - m_LastScreenPosition[1];
cursor->SetCursorPosition( m_LastScreenPosition );
m_LowerThreshold = std::max<mitk::ScalarType>(0.0, m_InitialLowerThreshold - m_ScreenYDifference * m_MouseDistanceScaleFactor);
m_UpperThreshold = std::max<mitk::ScalarType>(0.0, m_InitialUpperThreshold - m_ScreenYDifference * m_MouseDistanceScaleFactor);
// 2. Perform region growing again and show the result
mitkIpPicDescriptor* result = PerformRegionGrowingAndUpdateContour(positionEvent->GetSender()->GetTimeStep());
ipMITKSegmentationFree( result );
// 3. Update the contour
mitk::RenderingManager::GetInstance()->ForceImmediateUpdate(positionEvent->GetSender()->GetRenderWindow());
}
}
}
return true;
}
/**
3.2 Initialize region growing
3.2.1 Determine memory offset inside the original image
3.2.2 Determine initial region growing parameters from the level window settings of the image
3.2.3 Perform a region growing (which generates a new feedback contour)
*/
bool mitk::RegionGrowingTool::OnMousePressedOutside(Action* itkNotUsed( action ), const StateEvent* stateEvent)
{
const PositionEvent* positionEvent = dynamic_cast<const PositionEvent*>(stateEvent->GetEvent()); // checked in OnMousePressed
// 3.2 If we have a reference image, then perform an initial region growing, considering the reference image's level window
// if click was outside the image, don't continue
const Geometry3D* sliceGeometry = m_ReferenceSlice->GetGeometry();
Point3D mprojectedPointIn2D;
sliceGeometry->WorldToIndex( positionEvent->GetWorldPosition(), mprojectedPointIn2D );
itk::Index<2> projectedPointIn2D;
projectedPointIn2D[0] = static_cast<int>( mprojectedPointIn2D[0] - 0.5 );
projectedPointIn2D[1] = static_cast<int>( mprojectedPointIn2D[1] - 0.5 );
if ( sliceGeometry->IsIndexInside( mprojectedPointIn2D ) )
{
MITK_DEBUG << "OnMousePressed: point " << positionEvent->GetWorldPosition() << " (index coordinates " << mprojectedPointIn2D << ") IS in reference slice" << std::endl;
// 3.2.1 Remember Y cursor position and initial seed point
//m_ScreenYPositionAtStart = static_cast<int>(positionEvent->GetDisplayPosition()[1]);
m_LastScreenPosition = ApplicationCursor::GetInstance()->GetCursorPosition();
m_ScreenYDifference = 0;
m_SeedPointMemoryOffset = projectedPointIn2D[1] * m_OriginalPicSlice->n[0] + projectedPointIn2D[0];
m_LastWorkingSeed = m_SeedPointMemoryOffset; // remember for skeletonization
if ( m_SeedPointMemoryOffset < static_cast<int>( m_OriginalPicSlice->n[0] * m_OriginalPicSlice->n[1] ) &&
m_SeedPointMemoryOffset >= 0 )
{
// 3.2.2 Get level window from reference DataNode
// Use some logic to determine initial gray value bounds
LevelWindow lw(0, 500);
m_ToolManager->GetReferenceData(0)->GetLevelWindow(lw); // will fill lw if levelwindow property is present, otherwise won't touch it.
ScalarType currentVisibleWindow = lw.GetWindow();
if (!mitk::Equal(currentVisibleWindow, m_VisibleWindow))
{
m_InitialLowerThreshold = currentVisibleWindow / 20.0;
m_InitialUpperThreshold = currentVisibleWindow / 20.0;
m_LowerThreshold = m_InitialLowerThreshold;
m_UpperThreshold = m_InitialUpperThreshold;
// 3.2.3. Actually perform region growing
mitkIpPicDescriptor* result = PerformRegionGrowingAndUpdateContour();
ipMITKSegmentationFree( result);
// display the contour
FeedbackContourTool::SetFeedbackContourVisible(true);
mitk::RenderingManager::GetInstance()->RequestUpdate(positionEvent->GetSender()->GetRenderWindow());
m_FillFeedbackContour = true;
}
}
return true;
}
return false;
}
