cxImageTF3D.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
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   this list of conditions and the following disclaimer.

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   may be used to endorse or promote products derived from this software 
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/*
 * sscImageTF3D.cpp
 *
 *  Created on: Jan 9, 2009
 *      Author: christiana
 */

#include "cxImageTF3D.h"

#include <vector>
#include <vtkImageData.h>
#include <vtkWindowLevelLookupTable.h>
#include <vtkColorTransferFunction.h>
#include <vtkPiecewiseFunction.h>
#include <vtkVolumeProperty.h>
#include <QColor>
#include <QDomDocument>
#include <QStringList>
#include "cxVector3D.h"

#include "vtkForwardDeclarations.h"
#include "cxImageTF3D.h"

#include "cxTypeConversions.h"

namespace cx
{

ImageTF3D::ImageTF3D()
{
}

//void ImageTF3D::setInitialTFFromImage(vtkImageDataPtr base)
//{
//      double smin = base->GetScalarRange()[0];
//      double smax = base->GetScalarRange()[1];
//      double srange = smax - smin;

//      // set a winlevel spanning the entire range
//      // set llr/alpha with full transmission


//      mOpacityMap.clear();
//      this->addAlphaPoint(smin - 1, 0);
//      this->addAlphaPoint(smin + 0.1  * srange, 255.0 * 0.1);
//      this->addAlphaPoint(smin + 0.4  * srange, 255.0 * 0.5);
//      this->addAlphaPoint(smax, 255);

//      mColorMap.clear();
//      this->addColorPoint(smin, Qt::black);
//      this->addColorPoint(smax, Qt::white);
//}

void ImageTF3D::internalsHaveChanged()
{
        this->refreshOpacityTF();
        this->refreshColorTF();
        emit transferFunctionsChanged();
}

ImageTF3DPtr ImageTF3D::createCopy()
{
        ImageTF3DPtr retval(new ImageTF3D());
        retval->deepCopy(this);
        return retval;
}

vtkPiecewiseFunctionPtr ImageTF3D::getOpacityTF()
{
        if (!mOpacityTF)
        {
                mOpacityTF = vtkPiecewiseFunctionPtr::New();
                this->refreshOpacityTF();
        }
        return mOpacityTF;
}

vtkColorTransferFunctionPtr ImageTF3D::getColorTF()
{
        if (!mColorTF)
        {
                mColorTF = vtkColorTransferFunctionPtr::New();
                this->refreshColorTF();
        }
        return mColorTF;
}

void ImageTF3D::refreshColorTF()
{
        if (!mColorTF)
                return;
        this->fillColorTFFromMap(mColorTF);
}

void ImageTF3D::refreshOpacityTF()
{
        if (!mOpacityTF)
                return;
        this->fillOpacityTFFromMap(mOpacityTF);
}

void ImageTF3D::buildOpacityMapFromLLRAlpha()
{
        // REMOVED CA 2014-02-07 - TODO
        double range = this->getWindow();
        int smooth = (int) (0.1 * range);

        mOpacityMap.clear();
//      this->addAlphaPoint(this->getScalarMin(), 0);
//      if (this->getLLR() > this->getScalarMin())
        this->addAlphaPoint(this->getLLR() - 1, 0);
        this->addAlphaPoint(this->getLLR() + 1 * smooth, this->getAlpha() * 255 * 1 / 10);
        this->addAlphaPoint(this->getLLR() + 4 * smooth, this->getAlpha() * 255 * 5 / 10);
        this->addAlphaPoint(this->getLLR() + 10 * smooth, this->getAlpha() * 255);
//      this->addAlphaPoint(this->getScalarMax(), this->getAlpha() * 255);
}

}