cxOrientationAnnotation2DRep.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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   this list of conditions and the following disclaimer.

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

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#include "cxOrientationAnnotation2DRep.h"
#include "cxOrientationAnnotationRep.h"

#include <vtkTextProperty.h>
#include <vtkRenderer.h>
#include <vtkTextMapper.h>
#include <vtkObjectFactory.h>
#include <vtkCornerAnnotation.h>

#include "cxView.h"
#include "cxSliceProxy.h"
#include "cxVtkHelperClasses.h"
#include "cxTypeConversions.h"

// --------------------------------------------------------
namespace cx
// --------------------------------------------------------
{

OrientationAnnotationSmartRep::OrientationAnnotationSmartRep() :
        RepImpl()
{
        mAngle = M_PI*60/180;
        mOrientation = OrientationAnnotationPtr::New();
        mOrientation->SetNonlinearFontScaleFactor(0.35);
        mOrientation->GetTextProperty()->SetColor(0.7372, 0.815, 0.6039);

        mDCMDirections_r["P"] = Vector3D( 0, 1, 0); // Posterior
        mDCMDirections_r["A"] = Vector3D( 0,-1, 0); // Anterior
        mDCMDirections_r["R"] = Vector3D(-1, 0, 0); // Right
        mDCMDirections_r["L"] = Vector3D( 1, 0, 0); // Left
        mDCMDirections_r["S"] = Vector3D( 0, 0, 1); // Superior
        mDCMDirections_r["I"] = Vector3D( 0, 0,-1); // Inferior

        mPlaneDirections_s.resize(4);
        mPlaneDirections_s[0] = Vector3D( 1, 0, 0); // East
        mPlaneDirections_s[1] = Vector3D( 0, 1, 0); // North
        mPlaneDirections_s[2] = Vector3D(-1, 0, 0); // West
        mPlaneDirections_s[3] = Vector3D( 0,-1, 0); // South
}



OrientationAnnotationSmartRepPtr OrientationAnnotationSmartRep::New(const QString& uid)
{
        return wrap_new(new OrientationAnnotationSmartRep(), uid);
}

OrientationAnnotationSmartRep::~OrientationAnnotationSmartRep()
{

}

void OrientationAnnotationSmartRep::setVisible(bool visible)
{
        mOrientation->SetVisibility(visible);
}

void OrientationAnnotationSmartRep::setSliceProxy(SliceProxyPtr slicer)
{
        if (mSlicer)
        {
                disconnect(mSlicer.get(), SIGNAL(transformChanged(Transform3D)), this, SLOT(transformChangedSlot()));
        }
        mSlicer = slicer;
        if (mSlicer)
        {
                connect(mSlicer.get(), SIGNAL(transformChanged(Transform3D)), this, SLOT(transformChangedSlot()));
                this->transformChangedSlot();
        }
}

void OrientationAnnotationSmartRep::transformChangedSlot()
{
        this->createAnnotation();
}

QString OrientationAnnotationSmartRep::determineAnnotation(Vector3D planeDir_s, Transform3D rMs)
{
        Vector3D planeDir_r = rMs.vector(planeDir_s);

        QString text;
        double threshold = cos(mAngle);
//      double threshold = 0.5;

        for (std::map<QString, Vector3D>::iterator iter=mDCMDirections_r.begin(); iter!=mDCMDirections_r.end(); ++iter)
        {
                double w = dot(planeDir_r, iter->second);
                if (w > threshold)
                        text += iter->first;
        }

        return text;
//      return "test_"+qstring_cast(planeDir_s);
}

void OrientationAnnotationSmartRep::addRepActorsToViewRenderer(ViewPtr view)
{
        this->transformChangedSlot();
        view->getRenderer()->AddActor(mOrientation);
}

void OrientationAnnotationSmartRep::removeRepActorsFromViewRenderer(ViewPtr view)
{
        view->getRenderer()->RemoveActor(mOrientation);
}

void OrientationAnnotationSmartRep::ThresholdAngle(double angle)
{
        mAngle = angle;
        this->createAnnotation();
}

double OrientationAnnotationSmartRep::ThresholdAngle() const
{
        return mAngle;
}

void OrientationAnnotationSmartRep::createAnnotation()
{
        if (!mSlicer)
                return;

        Transform3D rMs = mSlicer->get_sMr().inv();

        // update texts
        for (unsigned int i=0; i<mPlaneDirections_s.size(); ++i)
        {
                QString text = this->determineAnnotation(mPlaneDirections_s[i], rMs);
                mOrientation->SetText(i, cstring_cast(text));
        }
}


// --------------------------------------------------------
} //end namespace
// --------------------------------------------------------