cxPointMetric.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 "cxPointMetric.h"
#include "cxBoundingBox3D.h"
#include "cxTool.h"
#include "cxTypeConversions.h"
#include "cxSpaceProvider.h"
#include "cxSpaceListener.h"
#include "cxCoordinateSystemHelpers.h"

namespace cx
{

PointMetric::PointMetric(const QString& uid, const QString& name, PatientModelServicePtr dataManager, SpaceProviderPtr spaceProvider) :
        DataMetric(uid, name, dataManager, spaceProvider),
        mCoordinate(0,0,0),
        mSpace(CoordinateSystem::reference())
{
        mSpaceListener = mSpaceProvider->createListener();
        mSpaceListener->setSpace(mSpace);
        connect(mSpaceListener.get(), SIGNAL(changed()), this, SLOT(resetCachedValues()));
        connect(mSpaceListener.get(), SIGNAL(changed()), this, SIGNAL(transformChanged()));
}

PointMetricPtr PointMetric::create(QString uid, QString name, PatientModelServicePtr dataManager, SpaceProviderPtr spaceProvider)
{
        return PointMetricPtr(new PointMetric(uid, name, dataManager, spaceProvider));
}

PointMetric::~PointMetric()
{
}

void PointMetric::setCoordinate(const Vector3D& p)
{
        if (p == mCoordinate)
                return;

        mCoordinate = p;
        this->resetCachedValues();
        emit transformChanged();
}

Vector3D PointMetric::getCoordinate() const
{
        return mCoordinate;
}

void PointMetric::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);
        mCoordinate = new_M_old.coord(mCoordinate);

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

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

void PointMetric::addXml(QDomNode& dataNode)
{
        DataMetric::addXml(dataNode);

        dataNode.toElement().setAttribute("space", mSpace.toString());
        dataNode.toElement().setAttribute("coord", qstring_cast(mCoordinate));
}

void PointMetric::parseXml(QDomNode& dataNode)
{
        DataMetric::parseXml(dataNode);

        this->setSpace(CoordinateSystem::fromString(dataNode.toElement().attribute("space", mSpace.toString())));
        this->setCoordinate(Vector3D::fromString(dataNode.toElement().attribute("coord", qstring_cast(mCoordinate))));
}

DoubleBoundingBox3D PointMetric::boundingBox() const
{
        // convert both inputs to r space
        Vector3D p0_r = this->getRefCoord();

        return DoubleBoundingBox3D(p0_r, p0_r);
}

void PointMetric::resetCachedValues()
{
//      std::cout << " ** PointMetric::resetCachedValues" << std::endl;

        mCachedRefCoord.reset();
}

Vector3D PointMetric::getRefCoord() const
{
//      std::cout << " ** PointMetric::getRefCoord" << std::endl;

//      return Vector3D(1,2,3);
        if (!mCachedRefCoord.isValid())
        {
//              std::cout << " ** PointMetric::getRefCoord FILL CACHE" << std::endl;
                Transform3D rM1 = mSpaceProvider->get_toMfrom(this->getSpace(), CoordinateSystem(csREF));
                Vector3D val = rM1.coord(this->getCoordinate());
                mCachedRefCoord.set(val);
        }
        return mCachedRefCoord.get();
}

QString PointMetric::getValueAsString() const
{
        return prettyFormat(this->getRefCoord(), 1, 3);
}

QString PointMetric::getAsSingleLineString() const
{
        return QString("%1 \"%2\" %3")
                        .arg(this->getSingleLineHeader())
                        .arg(mSpace.toString())
                        .arg(qstring_cast(this->getCoordinate()));
}

}