cxFrameMetricBase.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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#include "cxFrameMetricBase.h"
#include "cxBoundingBox3D.h"
#include "cxTypeConversions.h"
#include "cxSpaceProvider.h"
#include "cxSpaceListener.h"

namespace cx {

FrameMetricBase::FrameMetricBase(const QString& uid, const QString& name, PatientModelServicePtr dataManager, SpaceProviderPtr spaceProvider) :
                DataMetric(uid, name, dataManager, spaceProvider),
                mSpace(CoordinateSystem::reference()),
                mFrame(Transform3D::Identity())
{
        mSpaceListener = mSpaceProvider->createListener();
        mSpaceListener->setSpace(mSpace);
//      mSpaceListener.reset(new SpaceListener(mSpace));
        connect(mSpaceListener.get(), SIGNAL(changed()), this, SIGNAL(transformChanged()));
}

FrameMetricBase::~FrameMetricBase()
{
}

QString FrameMetricBase::getParentSpace()
{
        return mSpaceProvider->convertToSpecific(mSpace).mRefObject;
}

void FrameMetricBase::setFrame(const Transform3D& rMt)
{
        mFrame = rMt;
        emit transformChanged();
}

Transform3D FrameMetricBase::getFrame()
{
        return mFrame;
}

Vector3D FrameMetricBase::getCoordinate() const
{
        Vector3D point_t = Vector3D(0,0,0);
        return mFrame.coord(point_t);
}

Transform3D FrameMetricBase::getRefFrame() const
{
        Transform3D rMq = mSpaceProvider->get_toMfrom(this->getSpace(), CoordinateSystem(csREF));
        return rMq * mFrame;
}

Vector3D FrameMetricBase::getRefCoord() const
{
        Transform3D rMq = this->getRefFrame();
        Vector3D p_r = rMq.coord(Vector3D(0,0,0));
        return p_r;
}

void FrameMetricBase::setSpace(CoordinateSystem space)
{
        if (space == mSpace)
                return;

        // keep the absolute position (in ref) constant when changing space.
        Transform3D new_M_old = mSpaceProvider->get_toMfrom(this->getSpace(), space);
        mFrame = new_M_old*mFrame;

        mSpace = space;
        mSpaceListener->setSpace(space);
}

CoordinateSystem FrameMetricBase::getSpace() const
{
        return mSpace;
}

DoubleBoundingBox3D FrameMetricBase::boundingBox() const
{
        // convert both inputs to r space
        Transform3D rM0 = mSpaceProvider->get_toMfrom(this->getSpace(), CoordinateSystem(csREF));
        Vector3D p0_r = rM0.coord(this->getCoordinate());

        return DoubleBoundingBox3D(p0_r, p0_r);
}

QString FrameMetricBase::matrixAsSingleLineString() const
{
        std::stringstream stream;
        mFrame.put(stream, 0, ' ');
        return qstring_cast(stream.str());
}

} //namespace cx