there are some differences between

mitk::RenderingManager::GetInstance()->InitializeViews(myGeo);

and

mitk::RenderingManager::GetInstance()->InitializeView(myVtkRendererWindow, myGeo);

Try both variants after loading an image, e.g.

poStorage = oSceneIO->LoadScene("example.mitk", poStorage , false);

mitk::NodePredicateNot::Pointer oPred = mitk::NodePredicateNot::New(mitk::NodePredicateProperty::New("includeInBoundingBox", mitk::BoolProperty::New(false)));

mitk::DataStorage::SetOfObjects::ConstPointer   oRS         = poStorage->GetSubset(oPred);
mitk::TimeSlicedGeometry::Pointer               oBounds     = poStorage->ComputeBoundingGeometry3D(oRS);
mitk::Geometry3D::ConstPointer                  oGeometry   = oBounds;
if (oGeometry.IsNotNull() )
{

mitk::RenderingManager::GetInstance()->InitializeViews(oGeometry);
// and then try
mitk::RenderingManager::GetInstance()->InitializeView(myStdMultiWidget->GetRenderWindow1()->GetVtkRenderWindow(), oGeometry);
mitk::RenderingManager::GetInstance()->InitializeView(myStdMultiWidget->GetRenderWindow2()->GetVtkRenderWindow(), oGeometry);
mitk::RenderingManager::GetInstance()->InitializeView(myStdMultiWidget->GetRenderWindow3()->GetVtkRenderWindow(), oGeometry);
mitk::RenderingManager::GetInstance()->InitializeView(myStdMultiWidget->GetRenderWindow4()->GetVtkRenderWindow(), oGeometry);
}

The second version does not work, the widget does not get initialized!

SOLUTION:

This must be added to the InitializeView function so that the behaviour is equal, i tested it it works perfect:

Add in line 595 between "}" and "mitk::BaseRenderer* baseRenderer ="

if (geometry.IsNotNull() )

{// make sure bounding box has an extent bigger than zero in any direction
  // clone the input geometry
  Geometry3D::Pointer modifiedGeometry = dynamic_cast<Geometry3D*>( dataGeometry->Clone().GetPointer() );
  assert(modifiedGeometry.IsNotNull());
  Geometry3D::BoundsArrayType newBounds = modifiedGeometry->GetBounds();
  for( unsigned int dimension = 0; ( 2 * dimension ) < newBounds.Size() ; dimension++ )
  {
    //check for equality but for an epsilon
    if( Equal( newBounds[ 2 * dimension ], newBounds[ 2 * dimension + 1 ] ) )
    {
      newBounds[ 2 * dimension + 1 ] += 1;
    }
  }

  // set the newly calculated bounds array
  modifiedGeometry->SetBounds(newBounds);

  geometry = modifiedGeometry;
}

and add at after "mitk::BaseRenderer::GetInstance( renderWindow );":

baseRenderer->GetDisplayGeometry()->SetConstrainZoomingAndPanning(m_ConstrainedPaddingZooming);