cxVolumetricRep.cpp

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/*=========================================================================
This file is part of CustusX, an Image Guided Therapy Application.

Copyright (c) 2008-2014, SINTEF Department of Medical Technology
All rights reserved.

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modification, are permitted provided that the following conditions are met:

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   this list of conditions and the following disclaimer.

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   this list of conditions and the following disclaimer in the documentation 
   and/or other materials provided with the distribution.

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   may be used to endorse or promote products derived from this software 
   without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
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#include "cxVolumetricRep.h"

#include <vtkPiecewiseFunction.h>
#include <vtkColorTransferFunction.h>
#include <vtkVolumeProperty.h>

#include <vtkSmartVolumeMapper.h>

//#if VTK_MINOR_VERSION >= 6
        #include <vtkGPUVolumeRayCastMapper.h>
//#endif

#include <vtkImageData.h>
#include <vtkVolume.h>
#include <vtkRenderer.h>
#include <vtkMatrix4x4.h>

#include "cxView.h"
#include "cxImage.h"
#include "cxImageTF3D.h"
#include "cxSlicePlaneClipper.h"
#include "cxTypeConversions.h"
#include "vtkForwardDeclarations.h"

#include "cxImageMapperMonitor.h"

#include "cxVolumeProperty.h"

typedef vtkSmartPointer<class vtkGPUVolumeRayCastMapper> vtkGPUVolumeRayCastMapperPtr;

namespace cx
{
VolumetricRep::VolumetricRep() :
        VolumetricBaseRep(),
        mVolume(vtkVolumePtr::New()),
        mVolumeProperty(cx::VolumeProperty::create()),
        mMaxVoxels(0)
{
        this->setUseVolumeTextureMapper();
        mVolume->SetProperty(mVolumeProperty->getVolumeProperty());
}

VolumetricRep::~VolumetricRep()
{}

void VolumetricRep::setUseGPUVolumeRayCastMapper()
{
//#if (( VTK_MINOR_VERSION >= 6 )||( VTK_MAJOR_VERSION >5 ))
        vtkGPUVolumeRayCastMapperPtr mapper = vtkGPUVolumeRayCastMapperPtr::New();
        mMapper = mapper;
        mMapper->SetBlendModeToComposite();
        mVolume->SetMapper( mMapper );
//#endif
}

//TODO: Use vtkSmartVolumeMapper instead
void VolumetricRep::setUseVolumeTextureMapper()
{
        vtkVolumeTextureMapper3DPtr mapper = vtkVolumeTextureMapper3DPtr::New();
        mMapper = mapper;

        // from snws
#ifndef CX_VTK_OPENGL2
        mapper->SetPreferredMethodToNVidia();
#endif
        mMapper->SetBlendModeToComposite();

        mVolume->SetMapper( mMapper );
}

void VolumetricRep::addRepActorsToViewRenderer(ViewPtr view)
{
        view->getRenderer()->AddVolume(mVolume);
}

void VolumetricRep::removeRepActorsFromViewRenderer(ViewPtr view)
{
        view->getRenderer()->RemoveVolume(mVolume);
}

ImagePtr VolumetricRep::getImage()
{
        return mImage;
}

void VolumetricRep::setImage(ImagePtr image)
{
        if (image==mImage)
        {
                return;
        }

        if (mImage)
        {
                mVolumeProperty->setImage(ImagePtr());
                disconnect(mImage.get(), &Image::vtkImageDataChanged, this, &VolumetricRep::vtkImageDataChangedSlot);
                disconnect(mImage.get(), &Image::transformChanged, this, &VolumetricRep::transformChangedSlot);
                mMonitor.reset();
                mMapper->SetInputData( (vtkImageData*)NULL );
        }

        mImage = image;

        if (mImage)
        {
                connect(mImage.get(), &Image::vtkImageDataChanged, this, &VolumetricRep::vtkImageDataChangedSlot);
                connect(mImage.get(), &Image::transformChanged, this, &VolumetricRep::transformChangedSlot);
                mVolumeProperty->setImage(mImage);
                this->vtkImageDataChangedSlot();
                mMonitor = ImageMapperMonitor::create(mVolume, mImage);
        }
}

bool VolumetricRep::hasImage(ImagePtr image) const
{
        return (mImage == image);
}

void VolumetricRep::vtkImageDataChangedSlot()
{
        this->updateVtkImageDataSlot();
        this->transformChangedSlot();
}

void VolumetricRep::transformChangedSlot()
{
        if (!mImage)
        {
                return;
        }
        mVolume->SetUserMatrix(mImage->get_rMd().getVtkMatrix());
}

void VolumetricRep::updateVtkImageDataSlot()
{
        if (!mImage)
                return;

        vtkImageDataPtr volume = mImage->resample(this->mMaxVoxels);
        mMapper->SetInputData(volume);
}

void VolumetricRep::setMaxVolumeSize(long maxVoxels)
{
        mMaxVoxels = maxVoxels;
}


//---------------------------------------------------------
} // namespace cx
//---------------------------------------------------------