cxPlaneMetricRep.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.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
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 "cxPlaneMetricRep.h"

#include "cxView.h"
#include <vtkCamera.h>
#include <vtkRenderer.h>
#include "boost/bind.hpp"
#include "cxBoundingBox3D.h"

namespace cx
{

PlaneMetricRepPtr PlaneMetricRep::New(const QString& uid)
{
        return wrap_new(new PlaneMetricRep(), uid);
}

PlaneMetricRep::PlaneMetricRep()
{
        mViewportListener.reset(new ViewportListener);
        mViewportListener->setCallback(boost::bind(&PlaneMetricRep::rescale, this));
}

void PlaneMetricRep::clear()
{
    mGraphicalPoint.reset();
    mNormal.reset();
}

void PlaneMetricRep::addRepActorsToViewRenderer(ViewPtr view)
{
    mViewportListener->startListen(view->getRenderer());
    DataMetricRep::addRepActorsToViewRenderer(view);
}

void PlaneMetricRep::removeRepActorsFromViewRenderer(ViewPtr view)
{
        mViewportListener->stopListen();
    DataMetricRep::removeRepActorsFromViewRenderer(view);
}

PlaneMetricPtr PlaneMetricRep::getPlaneMetric()
{
        return boost::dynamic_pointer_cast<PlaneMetric>(mMetric);
}

void PlaneMetricRep::onModifiedStartRender()
{
        PlaneMetricPtr planeMetric = this->getPlaneMetric();
        if (!planeMetric)
                return;

        if (!mGraphicalPoint && this->getView() && mMetric)
        {
                mGraphicalPoint.reset(new GraphicalPoint3D(this->getRenderer()));
                mNormal.reset(new GraphicalArrow3D(this->getRenderer()));
                mRect.reset(new Rect3D(this->getRenderer(), mMetric->getColor()));
                mRect->setLine(true, 1);
        }

        if (!mGraphicalPoint)
                return;

        mGraphicalPoint->setColor(mMetric->getColor());
        mNormal->setColor(mMetric->getColor());
        mRect->setColor(mMetric->getColor());

        this->rescale();
}

void PlaneMetricRep::rescale()
{
        if (!mGraphicalPoint)
                return;

        PlaneMetricPtr planeMetric = this->getPlaneMetric();

        Vector3D p0_r = planeMetric->getRefCoord();
        Vector3D n_r = planeMetric->getRefNormal();

        double size = mViewportListener->getVpnZoom(p0_r);
        double sphereSize = mGraphicsSize / 100 / size;

        mGraphicalPoint->setValue(p0_r);
        mGraphicalPoint->setRadius(sphereSize);

        mNormal->setValue(p0_r, n_r, sphereSize * 8);

        this->drawRectangleForPlane(p0_r, n_r, size);

    this->drawText();
}

void PlaneMetricRep::drawRectangleForPlane(Vector3D p0_r, Vector3D n_r, double size)
{
        if (!mRect)
                return;
        // draw a rectangle showing the plane:
        Vector3D e_z = n_r;
        Vector3D k1(1,0,0);
        Vector3D k2(0,1,0);
        Vector3D e_x;
        if (cross(k2,e_z).length() > cross(k1,e_z).length())
                e_x = cross(k2,e_z)/cross(k2,e_z).length();
        else
                e_x = cross(k1,e_z)/cross(k1,e_z).length();

        Vector3D e_y = cross(e_z,e_x);
        Transform3D rMb = createTransformIJC(e_x, e_y, p0_r);
        double bb_size = 0.10/size;
        DoubleBoundingBox3D bb(-bb_size,bb_size,-bb_size,bb_size,0,0);

        mRect->updatePosition(bb, rMb);
}

}