cxAngleMetric.cpp

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/*=========================================================================
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Copyright (c) 2008-2014, SINTEF Department of Medical Technology
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#include "cxAngleMetric.h"

#include "cxBoundingBox3D.h"
#include "cxTypeConversions.h"

#include "cxPatientModelService.h"

namespace cx
{

AngleMetric::AngleMetric(const QString& uid, const QString& name, PatientModelServicePtr dataManager, SpaceProviderPtr spaceProvider) :
                                DataMetric(uid, name, dataManager, spaceProvider)
{
        mUseSimpleVisualization = false;
        mArguments.reset(new MetricReferenceArgumentList(QStringList() << "point 0" << "point 1" << "point 2" << "point 3"));
        mArguments->setValidArgumentTypes(QStringList() << "pointMetric");
        connect(mArguments.get(), SIGNAL(argumentsChanged()), this, SLOT(resetCachedValues()));
        connect(mArguments.get(), SIGNAL(argumentsChanged()), this, SIGNAL(transformChanged()));
}

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

//AngleMetricPtr AngleMetric::create(QDomNode node)
//{
//    AngleMetricPtr retval = AngleMetric::create("");
//    retval->parseXml(node);
//    return retval;
//}

AngleMetric::~AngleMetric()
{
}

void AngleMetric::addXml(QDomNode& dataNode)
{
        DataMetric::addXml(dataNode);
        mArguments->addXml(dataNode);
        dataNode.toElement().setAttribute("useSimpleVisualization", QString::number(mUseSimpleVisualization));
}

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

        mArguments->parseXml(dataNode, mDataManager->getData());

        mUseSimpleVisualization = dataNode.toElement().attribute("useSimpleVisualization", QString::number(mUseSimpleVisualization)).toInt();
        this->resetCachedValues();
}

void AngleMetric::resetCachedValues()
{
        mCachedEndPoints.reset();
}

bool AngleMetric::isValid() const
{
        return !this->getEndpoints().empty();
}

std::vector<Vector3D> AngleMetric::getEndpoints() const
{
        if (!mCachedEndPoints.isValid())
        {
                mCachedEndPoints.set(mArguments->getRefCoords());
        }
        return mCachedEndPoints.get();
}

Vector3D AngleMetric::getRefCoord() const
{
    return this->boundingBox().center();
}

double AngleMetric::getAngle() const
{
        std::vector<Vector3D> p = this->getEndpoints();

        if (p.empty())
                return -1;

        Vector3D a = (p[0] - p[1]).normalized();
        Vector3D b = (p[3] - p[2]).normalized();

        double angle = acos(dot(a, b) / a.length() / b.length());
        return angle;
}

QString AngleMetric::getValueAsString() const
{
        return QString("%1*").arg(this->getAngle() / M_PI * 180, 0, 'f', 1);
}

DoubleBoundingBox3D AngleMetric::boundingBox() const
{
        return DoubleBoundingBox3D::fromCloud(this->getEndpoints());
}

QString AngleMetric::getAsSingleLineString() const
{
        return QString("%1 %2")
                        .arg(this->getSingleLineHeader())
                        .arg(qstring_cast(this->getAngle()));
}

bool AngleMetric::getUseSimpleVisualization() const
{
        return mUseSimpleVisualization;
}

void AngleMetric::setUseSimpleVisualization(bool val)
{
        mUseSimpleVisualization = val;
        emit propertiesChanged();
}


}