LayerImageBase.cxx

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#include "LayerImageBase.h"

LayerImageBase::LayerImageBase()
{
        _actorPresent                   =       false;
        _Z                                              =       0;
        _thresholdTable                 =       NULL;
        _thresholdMapper                =       NULL;
        _thresholdActor                 =       NULL;
        _image                                  =       NULL;
        _baseView               =   NULL;
        _imageReslicer                  =       vtkImageReslice::New();

}

//----------------------------------------------------------------------------
  LayerImageBase::~LayerImageBase()
  {
  }

//----------------------------------------------------------------------------
void LayerImageBase::SetZ(int z)
{
        _Z = z;
}

//----------------------------------------------------------------------------
int LayerImageBase::GetZ()  // virtual
{
        return _Z;
}

//----------------------------------------------------------------------------
vtkImageData* LayerImageBase::GetImage()
{
        return _image;
}

//----------------------------------------------------------------------------
bool LayerImageBase::GetActorPresent()
{
        return _actorPresent;
}



//----------------------------------------------------------------------------
void LayerImageBase::SetImage(vtkImageData* image)
{
        _image = image;
}

//----------------------------------------------------------------------------
void LayerImageBase::SetwxVtkBaseView(wxVtkBaseView *baseview)
{
        _baseView = baseview;
}

//----------------------------------------------------------------------------
wxVtkBaseView *LayerImageBase::GetwxVtkBaseView()
{
        return _baseView;
}

//----------------------------------------------------------------------------
void LayerImageBase::Refresh()
{
    if (_baseView!=NULL)
    {
        _baseView->Refresh();
    }
}


//----------------------------------------------------------------------------
vtkLookupTable* LayerImageBase::GetThresholdTable()
{
        return _thresholdTable;
}

//----------------------------------------------------------------------------
int LayerImageBase::CleanZ(int z)
{
        int ext[6];
        _image->GetWholeExtent(ext);

        if (z<0)
        {
                z=0;
        }

        if ( z > (ext[5]-ext[4]) )
        {
                z=ext[5]-ext[4];
        }

        return z;
}

//----------------------------------------------------------------------------
void LayerImageBase::onThreshold()
{

        if ((_image!=NULL) && (_baseView!=NULL))
        {
                int z=CleanZ( GetZ() );

                if (!GetActorPresent())
                {
                        if (_thresholdTable==NULL)
                        {
                                //Lookup Table
                                _thresholdTable = vtkLookupTable::New();
                        } // _thresholdTable

                        if (_thresholdMapper==NULL)
                        {
                                _thresholdMapper = vtkImageMapToColors::New( );
                        }

                        if (_thresholdActor==NULL)
                        {
                                _thresholdActor = vtkImageActor::New( );
                                _thresholdActor->SetOpacity( 0.6 );
                                _thresholdActor->InterpolateOn(  );
                                _thresholdActor->SetPosition( 0,0, 900-1 );
                        } // _thresholdActor
                        _baseView->GetRenderer()->AddActor( _thresholdActor );
                        _actorPresent = true;
                }  // !GetActorPresent()

                ConfigLookupTable();  // virtual method
                _imageReslicer->SetInput( GetImage() );
                _imageReslicer->SetInformationInput( GetImage() );
                _imageReslicer->SetResliceAxesDirectionCosines(1,0,0, 0,1,0 ,0,0,1);
                _imageReslicer->SetOutputDimensionality(2);
                _imageReslicer->SetInterpolationModeToLinear();
                _imageReslicer->SetResliceAxesOrigin(0,0,z);

                vtkImageData *img = _imageReslicer->GetOutput();
                img->Update();
                img->UpdateInformation();

                _thresholdMapper->SetInput( img );
                _thresholdMapper->SetLookupTable( _thresholdTable );
                _thresholdActor->SetInput( _thresholdMapper->GetOutput() );
                } // _image
}



//----------------------------------------------------------------------------
void LayerImageBase::onThresholdChange()
{
        if (_actorPresent)
        {
                onThreshold();
        }
}

//----------------------------------------------------------------------------
void LayerImageBase::onThresholdInterpolation(bool interpolate)
{
        if (_thresholdActor!=NULL)
        {
                if (interpolate)
                {
                        _thresholdActor->InterpolateOn( );
                }
                else
                {
                        _thresholdActor->InterpolateOff( );
                }
        }
}

//----------------------------------------------------------------------------
void LayerImageBase::onThresholdChangeOpacity (int opacity)
{
        if (_actorPresent)
        {
                _thresholdActor->SetOpacity(opacity*0.1);
        }
}

//----------------------------------------------------------------------------
void LayerImageBase::onThresholdRemove()
{
        if (_actorPresent)
        {
                wxVtkBaseView * baseView = _baseView;
                baseView->GetRenderer()->RemoveActor( _thresholdActor );
                _actorPresent = false;
        }
}




// EOF