void mitk::DisplayGeometry::SetSizeInDisplayUnits(unsigned int width, unsigned int height, bool keepDisplayedRegion)
{
Vector2D oldSizeInMM( m_SizeInMM );
Point2D oldCenterInMM;
if(keepDisplayedRegion)
{
Point2D centerInDisplayUnits;
centerInDisplayUnits[0] = m_SizeInDisplayUnits[0]*0.5;
centerInDisplayUnits[1] = m_SizeInDisplayUnits[1]*0.5;
DisplayToWorld(centerInDisplayUnits, oldCenterInMM);
}
m_SizeInDisplayUnits[0]=width;
m_SizeInDisplayUnits[1]=height;
if(m_SizeInDisplayUnits[0] <= 0)
m_SizeInDisplayUnits[0] = 1;
if(m_SizeInDisplayUnits[1] <= 0)
m_SizeInDisplayUnits[1] = 1;
DisplayToWorld(m_SizeInDisplayUnits, m_SizeInMM);
if(keepDisplayedRegion)
{
Point2D positionOfOldCenterInCurrentDisplayUnits;
WorldToDisplay(oldCenterInMM, positionOfOldCenterInCurrentDisplayUnits);
Point2D currentNewCenterInDisplayUnits;
currentNewCenterInDisplayUnits[0] = m_SizeInDisplayUnits[0]*0.5;
currentNewCenterInDisplayUnits[1] = m_SizeInDisplayUnits[1]*0.5;
Vector2D shift;
shift=positionOfOldCenterInCurrentDisplayUnits.GetVectorFromOrigin()-currentNewCenterInDisplayUnits;
MoveBy(shift);
Zoom(m_SizeInMM.GetNorm()/oldSizeInMM.GetNorm(), currentNewCenterInDisplayUnits);
}
Modified();
}
bool mitk::DisplayGeometry::SetScaleFactor(ScalarType mmPerDisplayUnit)
{
if(mmPerDisplayUnit<0.0001)
{
mmPerDisplayUnit=0.0001;
}
m_ScaleFactorMMPerDisplayUnit = mmPerDisplayUnit;
assert(m_ScaleFactorMMPerDisplayUnit < ScalarTypeNumericTraits::infinity());
DisplayToWorld(m_SizeInDisplayUnits, m_SizeInMM);
return !this->RefitVisibleRect();
}
void mitk::GizmoInteractor::MoveFreely(StateMachineAction*, InteractionEvent* interactionEvent)
{
auto positionEvent = dynamic_cast<const InteractionPositionEvent*>(interactionEvent);
if(positionEvent == NULL)
{
return;
}
Point2D currentPosition2D = positionEvent->GetPointerPositionOnScreen();
// re-use the initial z value to really move parallel to the camera plane
auto renderer = positionEvent->GetSender()->GetVtkRenderer();
renderer->SetDisplayPoint(currentPosition2D[0], currentPosition2D[1], m_InitialClickPosition2DZ);
renderer->DisplayToWorld();
vtkVector3d worldPointVTK(renderer->GetWorldPoint());
Point3D worldPointITK(worldPointVTK.GetData());
Vector3D movementITK( worldPointITK - m_InitialClickPosition3D );
ApplyTranslationToManipulatedObject(movementITK);
RenderingManager::GetInstance()->ForceImmediateUpdateAll();
}
void mitk::DisplayGeometry::ULDisplayToMM(const Vector2D &vec_ULdisplay, Vector2D &vec_mm) const
{
ULDisplayToDisplay(vec_ULdisplay, vec_mm);
DisplayToWorld(vec_mm, vec_mm);
}
void mitk::DisplayGeometry::ULDisplayToMM(const Point2D &pt_ULdisplay, Point2D &pt_mm) const
{
ULDisplayToDisplay(pt_ULdisplay, pt_mm);
DisplayToWorld(pt_mm, pt_mm);
}
