cxGuideRep2D.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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modification, are permitted provided that the following conditions are met:

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   this list of conditions and the following disclaimer.

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   this list of conditions and the following disclaimer in the documentation 
   and/or other materials provided with the distribution.

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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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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
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#include "cxGuideRep2D.h"
#include "boost/bind.hpp"

#include <vtkActor.h>
#include <vtkPolyDataMapper.h>
#include <vtkProperty.h>
#include <vtkRenderer.h>
#include <vtkSectorSource.h>
#include "cxTool.h"

#include "cxSliceProxy.h"
#include "cxView.h"
#include "cxPatientModelService.h"

namespace cx
{

GuideRep2DPtr GuideRep2D::New(PatientModelServicePtr dataManager, const QString& uid)
{
        return wrap_new(new GuideRep2D(dataManager), uid);
}

GuideRep2D::GuideRep2D(PatientModelServicePtr dataManager) :
        mDataManager(dataManager),
        mOutlineWidth(1),
        mRequestedAccuracy(1)
{
}


void GuideRep2D::clear()
{
        if (this->getView())
                this->getView()->getRenderer()->RemoveActor(mCircleActor);
}

void GuideRep2D::onModifiedStartRender()
{
        if (!mMetric)
                return;

        if (!mCircleActor && this->getView() && mMetric && mSliceProxy)
        {
                mCircleSource = vtkSectorSource::New();
                mCircleSource->SetOuterRadius(mGraphicsSize);
                mCircleSource->SetInnerRadius(0);
                mCircleSource->SetStartAngle(0);
                mCircleSource->SetEndAngle(360);
                mCircleSource->SetCircumferentialResolution(60);
                vtkPolyDataMapperPtr mapper = vtkPolyDataMapper::New();
                mapper->SetInputConnection(mCircleSource->GetOutputPort());
                mapper->ScalarVisibilityOff();
                mCircleActor = vtkActor::New();
                mCircleActor->SetMapper(mapper);
                mCircleActor->GetProperty()->LightingOff();
                this->getRenderer()->AddActor(mCircleActor);

        }

        if (!mCircleActor)
                return;
        if (!mSliceProxy->getTool())
        {
                return;
        }

        double toolOffset = mSliceProxy->getTool()->getTooltipOffset();
        Transform3D rMt = mDataManager->get_rMpr()*mSliceProxy->getTool()->get_prMt();
        Vector3D toolOffsetPosRef = rMt.coord(Vector3D(0,0,toolOffset));
        Vector3D toolPosRef = rMt.coord(Vector3D(0,0,0));

        Vector3D centerRef = mMetric->getRefCoord() + 0.5*(toolOffsetPosRef - mMetric->getRefCoord());
        Vector3D position = mSliceProxy->get_sMr() * centerRef;
        mCircleActor->SetPosition(position[0], position[1], 0);

        const double margin = 10;
        double offsetDistance = (mMetric->getRefCoord() - toolOffsetPosRef).length();
        double distance = (mMetric->getRefCoord() - toolPosRef).length();
        double radius = 0.5 * offsetDistance + margin;
        mCircleSource->SetOuterRadius(radius);
        mCircleSource->SetInnerRadius(radius - mOutlineWidth);

        if (distance < mRequestedAccuracy)
        {
                mCircleActor->GetProperty()->SetColor(0, 1, 1);
        }
        else if (offsetDistance < mRequestedAccuracy && toolOffset >= 0 && distance < 4*mRequestedAccuracy)
        {
                mCircleActor->GetProperty()->SetColor(0, 1, 1.0 - (distance-mRequestedAccuracy)/(3*mRequestedAccuracy));
        }
        else if (offsetDistance < mRequestedAccuracy && toolOffset >= 0)
        {
                mCircleActor->GetProperty()->SetColor(0, 1, 0);
        }
        else
        {
                mCircleActor->GetProperty()->SetColor(1, 0, 0);
        }

}

void GuideRep2D::setSliceProxy(SliceProxyPtr sliceProxy)
{
        if (mSliceProxy)
                disconnect(mSliceProxy.get(), SIGNAL(transformChanged(Transform3D)), this, SLOT(setModified()));
        mSliceProxy = sliceProxy;
        if (mSliceProxy)
                connect(mSliceProxy.get(), SIGNAL(transformChanged(Transform3D)), this, SLOT(setModified()));
        this->setModified();
}

void GuideRep2D::setOutlineWidth(double width)
{
        mOutlineWidth = width;
        this->setModified();
}

void GuideRep2D::setRequestedAccuracy(double accuracy)
{
        mRequestedAccuracy = accuracy;
        this->setModified();
}

}