void mitk::SurfaceToImageFilter::Stencil3DImage(int time)
{
mitk::Image::Pointer output = this->GetOutput();
mitk::Image::Pointer binaryImage = mitk::Image::New();
unsigned int size = sizeof(unsigned char);
if (m_MakeOutputBinary)
binaryImage->Initialize(mitk::MakeScalarPixelType<unsigned char>(), *this->GetImage()->GetTimeGeometry(),1,1);
else
{
binaryImage->Initialize(this->GetImage()->GetPixelType(), *this->GetImage()->GetTimeGeometry(),1,1);
size = this->GetImage()->GetPixelType().GetSize();
}
for (unsigned int i = 0; i < binaryImage->GetDimension(); ++i)
size *= binaryImage->GetDimension(i);
mitk::ImageWriteAccessor accessor( binaryImage );
memset( accessor.GetData(), 1, size );
const mitk::TimeGeometry *surfaceTimeGeometry = GetInput()->GetTimeGeometry();
const mitk::TimeGeometry *imageTimeGeometry = GetImage()->GetTimeGeometry();
// Convert time step from image time-frame to surface time-frame
mitk::TimePointType matchingTimePoint = imageTimeGeometry->TimeStepToTimePoint(time);
mitk::TimeStepType surfaceTimeStep = surfaceTimeGeometry->TimePointToTimeStep(matchingTimePoint);
vtkPolyData * polydata = ( (mitk::Surface*)GetInput() )->GetVtkPolyData( surfaceTimeStep );
if(polydata)
{
vtkSmartPointer<vtkTransformPolyDataFilter> move = vtkSmartPointer<vtkTransformPolyDataFilter>::New();
move->SetInputData(polydata);
move->ReleaseDataFlagOn();
vtkSmartPointer<vtkTransform> transform = vtkSmartPointer<vtkTransform>::New();
BaseGeometry* geometry = surfaceTimeGeometry->GetGeometryForTimeStep( surfaceTimeStep );
if(!geometry)
{
geometry = GetInput()->GetGeometry();
}
transform->PostMultiply();
transform->Concatenate(geometry->GetVtkTransform()->GetMatrix());
// take image geometry into account. vtk-Image information will be changed to unit spacing and zero origin below.
BaseGeometry* imageGeometry = imageTimeGeometry->GetGeometryForTimeStep(time);
transform->Concatenate(imageGeometry->GetVtkTransform()->GetLinearInverse());
move->SetTransform(transform);
vtkSmartPointer<vtkPolyDataNormals> normalsFilter = vtkSmartPointer<vtkPolyDataNormals>::New();
normalsFilter->SetFeatureAngle(50);
normalsFilter->SetConsistency(1);
normalsFilter->SetSplitting(1);
normalsFilter->SetFlipNormals(0);
normalsFilter->ReleaseDataFlagOn();
normalsFilter->SetInputConnection(move->GetOutputPort());
vtkSmartPointer<vtkPolyDataToImageStencil> surfaceConverter = vtkSmartPointer<vtkPolyDataToImageStencil>::New();
surfaceConverter->SetTolerance( 0.0 );
surfaceConverter->ReleaseDataFlagOn();
surfaceConverter->SetInputConnection( normalsFilter->GetOutputPort() );
vtkImageData *image = m_MakeOutputBinary
? binaryImage->GetVtkImageData()
: const_cast<mitk::Image *>(this->GetImage())->GetVtkImageData(time);
// Create stencil and use numerical minimum of pixel type as background value
vtkSmartPointer<vtkImageStencil> stencil = vtkSmartPointer<vtkImageStencil>::New();
stencil->SetInputData(image);
stencil->ReverseStencilOff();
stencil->ReleaseDataFlagOn();
stencil->SetStencilConnection(surfaceConverter->GetOutputPort());
stencil->SetBackgroundValue(m_MakeOutputBinary ? 0 : m_BackgroundValue);
stencil->Update();
output->SetVolume( stencil->GetOutput()->GetScalarPointer(), time );
MITK_INFO << "stencil ref count: " << stencil->GetReferenceCount() << std::endl;
}
else
{
memset( accessor.GetData(), 0, size );
output->SetVolume(accessor.GetData(),time);
}
}
void mitk::PlaneGeometryDataToSurfaceFilter::GenerateOutputInformation()
{
mitk::PlaneGeometryData::ConstPointer input = this->GetInput();
mitk::Surface::Pointer output = this->GetOutput();
if ( input.IsNull() || (input->GetPlaneGeometry() == nullptr)
|| (input->GetPlaneGeometry()->IsValid() == false)
|| (m_UseBoundingBox && (m_BoundingBox.IsNull() || (m_BoundingBox->GetDiagonalLength2() < mitk::eps))) )
{
return;
}
Point3D origin;
Point3D right, bottom;
vtkPolyData *planeSurface = nullptr;
// Does the PlaneGeometryData contain an AbstractTransformGeometry?
if ( mitk::AbstractTransformGeometry *abstractGeometry =
dynamic_cast< AbstractTransformGeometry * >( input->GetPlaneGeometry() ) )
{
// In the case of an AbstractTransformGeometry (which holds a possibly
// non-rigid transform), we proceed slightly differently: since the
// plane can be arbitrarily deformed, we need to transform it by the
// abstract transform before clipping it. The setup for this is partially
// done in the constructor.
origin = abstractGeometry->GetPlane()->GetOrigin();
right = origin + abstractGeometry->GetPlane()->GetAxisVector( 0 );
bottom = origin + abstractGeometry->GetPlane()->GetAxisVector( 1 );
// Define the plane
m_PlaneSource->SetOrigin( origin[0], origin[1], origin[2] );
m_PlaneSource->SetPoint1( right[0], right[1], right[2] );
m_PlaneSource->SetPoint2( bottom[0], bottom[1], bottom[2] );
// Set the plane's resolution (unlike for non-deformable planes, the plane
// grid needs to have a certain resolution so that the deformation has the
// desired effect).
if ( m_UseGeometryParametricBounds )
{
m_PlaneSource->SetXResolution(
(int)abstractGeometry->GetParametricExtent(0)
);
m_PlaneSource->SetYResolution(
(int)abstractGeometry->GetParametricExtent(1)
);
}
else
{
m_PlaneSource->SetXResolution( m_XResolution );
m_PlaneSource->SetYResolution( m_YResolution );
}
if ( m_PlaceByGeometry )
{
// Let the output use the input geometry to appropriately transform the
// coordinate system.
mitk::Geometry3D::TransformType *affineTransform =
abstractGeometry->GetIndexToWorldTransform();
TimeGeometry *timeGeometry = output->GetTimeGeometry();
BaseGeometry *g3d = timeGeometry->GetGeometryForTimeStep( 0 );
g3d->SetIndexToWorldTransform( affineTransform );
vtkGeneralTransform *composedResliceTransform = vtkGeneralTransform::New();
composedResliceTransform->Identity();
composedResliceTransform->Concatenate(
abstractGeometry->GetVtkTransform()->GetLinearInverse() );
composedResliceTransform->Concatenate(
abstractGeometry->GetVtkAbstractTransform()
);
// Use the non-rigid transform for transforming the plane.
m_VtkTransformPlaneFilter->SetTransform(
composedResliceTransform
);
}
else
{
// Use the non-rigid transform for transforming the plane.
m_VtkTransformPlaneFilter->SetTransform(
abstractGeometry->GetVtkAbstractTransform()
);
}
if ( m_UseBoundingBox )
{
mitk::BoundingBox::PointType boundingBoxMin = m_BoundingBox->GetMinimum();
mitk::BoundingBox::PointType boundingBoxMax = m_BoundingBox->GetMaximum();
//mitk::BoundingBox::PointType boundingBoxCenter = m_BoundingBox->GetCenter();
m_Box->SetXMin( boundingBoxMin[0], boundingBoxMin[1], boundingBoxMin[2] );
m_Box->SetXMax( boundingBoxMax[0], boundingBoxMax[1], boundingBoxMax[2] );
}
else
{
// Plane will not be clipped
m_Box->SetXMin( -10000.0, -10000.0, -10000.0 );
m_Box->SetXMax( 10000.0, 10000.0, 10000.0 );
}
m_Transform->Identity();
m_Transform->Concatenate( input->GetPlaneGeometry()->GetVtkTransform() );
m_Transform->PreMultiply();
m_Box->SetTransform( m_Transform );
m_PlaneClipper->SetInputConnection(m_VtkTransformPlaneFilter->GetOutputPort() );
m_PlaneClipper->SetClipFunction( m_Box );
m_PlaneClipper->GenerateClippedOutputOff(); // important to NOT generate normals data for clipped part
m_PlaneClipper->InsideOutOn();
m_PlaneClipper->SetValue( 0.0 );
m_PlaneClipper->Update();
planeSurface = m_PlaneClipper->GetOutput();
}
// Does the PlaneGeometryData contain a PlaneGeometry?
else if ( dynamic_cast< PlaneGeometry * >( input->GetPlaneGeometry() ) != nullptr )
{
mitk::PlaneGeometry *planeGeometry =
dynamic_cast< PlaneGeometry * >( input->GetPlaneGeometry() );
if ( m_PlaceByGeometry )
{
// Let the output use the input geometry to appropriately transform the
// coordinate system.
mitk::Geometry3D::TransformType *affineTransform =
planeGeometry->GetIndexToWorldTransform();
TimeGeometry *timeGeometry = output->GetTimeGeometry();
BaseGeometry *geometrie3d = timeGeometry->GetGeometryForTimeStep( 0 );
geometrie3d->SetIndexToWorldTransform( affineTransform );
}
if ( !m_UseBoundingBox)
{
// We do not have a bounding box, so no clipping is required.
if ( m_PlaceByGeometry )
{
// Derive coordinate axes and origin from input geometry extent
origin.Fill( 0.0 );
FillVector3D( right, planeGeometry->GetExtent(0), 0.0, 0.0 );
FillVector3D( bottom, 0.0, planeGeometry->GetExtent(1), 0.0 );
}
else
{
// Take the coordinate axes and origin directly from the input geometry.
origin = planeGeometry->GetOrigin();
right = planeGeometry->GetCornerPoint( false, true );
bottom = planeGeometry->GetCornerPoint( true, false );
}
// Since the plane is planar, there is no need to subdivide the grid
// (cf. AbstractTransformGeometry case)
m_PlaneSource->SetXResolution( 1 );
m_PlaneSource->SetYResolution( 1 );
m_PlaneSource->SetOrigin( origin[0], origin[1], origin[2] );
m_PlaneSource->SetPoint1( right[0], right[1], right[2] );
m_PlaneSource->SetPoint2( bottom[0], bottom[1], bottom[2] );
m_PlaneSource->Update();
planeSurface = m_PlaneSource->GetOutput();
}
else
{
// Set up a cube with the extent and origin of the bounding box. This
// cube will be clipped by a plane later on. The intersection of the
// cube and the plane will be the surface we are interested in. Note
// that the bounding box needs to be explicitly specified by the user
// of this class, since it is not necessarily clear from the data
// available herein which bounding box to use. In most cases, this
// would be the bounding box of the input geometry's reference
// geometry, but this is not an inevitable requirement.
mitk::BoundingBox::PointType boundingBoxMin = m_BoundingBox->GetMinimum();
mitk::BoundingBox::PointType boundingBoxMax = m_BoundingBox->GetMaximum();
mitk::BoundingBox::PointType boundingBoxCenter = m_BoundingBox->GetCenter();
m_CubeSource->SetXLength( boundingBoxMax[0] - boundingBoxMin[0] );
m_CubeSource->SetYLength( boundingBoxMax[1] - boundingBoxMin[1] );
m_CubeSource->SetZLength( boundingBoxMax[2] - boundingBoxMin[2] );
m_CubeSource->SetCenter(
boundingBoxCenter[0],
boundingBoxCenter[1],
boundingBoxCenter[2] );
// Now we have to transform the cube, so that it will cut our plane
// appropriately. (As can be seen below, the plane corresponds to the
// z-plane in the coordinate system and is *not* transformed.) Therefore,
// we get the inverse of the plane geometry's transform and concatenate
// it with the transform of the reference geometry, if available.
m_Transform->Identity();
m_Transform->Concatenate(
planeGeometry->GetVtkTransform()->GetLinearInverse()
);
BaseGeometry *referenceGeometry = planeGeometry->GetReferenceGeometry();
if ( referenceGeometry )
{
m_Transform->Concatenate(
referenceGeometry->GetVtkTransform()
);
}
// Transform the cube accordingly (s.a.)
m_PolyDataTransformer->SetInputConnection( m_CubeSource->GetOutputPort() );
m_PolyDataTransformer->SetTransform( m_Transform );
// Initialize the plane to clip the cube with, as lying on the z-plane
m_Plane->SetOrigin( 0.0, 0.0, 0.0 );
m_Plane->SetNormal( 0.0, 0.0, 1.0 );
// Cut the plane with the cube.
m_PlaneCutter->SetInputConnection( m_PolyDataTransformer->GetOutputPort() );
m_PlaneCutter->SetCutFunction( m_Plane );
// The output of the cutter must be converted into appropriate poly data.
m_PlaneStripper->SetInputConnection( m_PlaneCutter->GetOutputPort() );
m_PlaneStripper->Update();
if ( m_PlaneStripper->GetOutput()->GetNumberOfPoints() < 3 )
{
return;
}
m_PlanePolyData->SetPoints( m_PlaneStripper->GetOutput()->GetPoints() );
m_PlanePolyData->SetPolys( m_PlaneStripper->GetOutput()->GetLines() );
m_PlaneTriangler->SetInputData( m_PlanePolyData );
// Get bounds of the resulting surface and use it to generate the texture
// mapping information
m_PlaneTriangler->Update();
m_PlaneTriangler->GetOutput()->ComputeBounds();
double *surfaceBounds =
m_PlaneTriangler->GetOutput()->GetBounds();
origin[0] = surfaceBounds[0];
origin[1] = surfaceBounds[2];
origin[2] = surfaceBounds[4];
right[0] = surfaceBounds[1];
right[1] = surfaceBounds[2];
right[2] = surfaceBounds[4];
bottom[0] = surfaceBounds[0];
bottom[1] = surfaceBounds[3];
bottom[2] = surfaceBounds[4];
// Now we tell the data how it shall be textured afterwards;
// description see above.
m_TextureMapToPlane->SetInputConnection( m_PlaneTriangler->GetOutputPort() );
m_TextureMapToPlane->AutomaticPlaneGenerationOn();
m_TextureMapToPlane->SetOrigin( origin[0], origin[1], origin[2] );
m_TextureMapToPlane->SetPoint1( right[0], right[1], right[2] );
m_TextureMapToPlane->SetPoint2( bottom[0], bottom[1], bottom[2] );
// Need to call update so that output data and bounds are immediately
// available
m_TextureMapToPlane->Update();
// Return the output of this generation process
planeSurface = dynamic_cast< vtkPolyData * >(
m_TextureMapToPlane->GetOutput()
);
}
}
m_NormalsUpdater->SetInputData( planeSurface );
m_NormalsUpdater->AutoOrientNormalsOn(); // that's the trick! Brings consistency between
// normals direction and front/back faces direction (see bug 1440)
m_NormalsUpdater->ComputePointNormalsOn();
m_NormalsUpdater->Update();
output->SetVtkPolyData( m_NormalsUpdater->GetOutput() );
output->CalculateBoundingBox();
}
