osg::ref_ptr<osg::AnimationPath> CVehicle::outputScene(const osg::ref_ptr<osg::Vec3Array>& junctionArray , double width, unsigned int num)
{
osg::ref_ptr<osg::Vec3Array> driveway = new osg::Vec3Array;
for (int i = 0; i != m_index.size(); i++ )
{
driveway->push_back((*junctionArray)[m_index[i]]);
}
m_loc = rand() % num ;
double w = width / 2.0 + width * m_loc;
generatePath(driveway,w);
typedef osg::AnimationPath::ControlPoint ControlPoint;
osg::Vec3 yoz(1.0, 0.0, 0.0), xoz(0.0, 1.0, 0.0), xoy(0.0, 0.0, 1.0);
osg::ref_ptr<osg::AnimationPath> path = new osg::AnimationPath;
double m = 0;
for (int i = 0; i != m_index.size(); i++ )
{
if( i == 0)
{
path->insert( 0,
ControlPoint((*driveway)[i],osg::Quat( 0.0,yoz,0.0,xoz, 0.0,xoy)) );
}
else
{
m += m_angleList[i-1];
path->insert( (i-1) * m_speed + 0.1,
ControlPoint((*driveway)[i-1],osg::Quat( 0.0,yoz,0.0,xoz,m,xoy)) );
path->insert( i * m_speed ,
ControlPoint((*driveway)[i],osg::Quat( 0.0,yoz,0.0,xoz,m,xoy)) );
}
}
return path.release();
}
osg::AnimationPath* createPath()
{
typedef osg::AnimationPath::ControlPoint ControlPoint;
osg::Vec3 yoz(1.0, 0.0, 0.0), xoz(0.0, 1.0, 0.0), xoy(0.0, 0.0, 1.0);
osg::ref_ptr<osg::AnimationPath> path = new osg::AnimationPath;
path->insert( 0.0,
ControlPoint(osg::Vec3(0.0,0.0,0.0), osg::Quat( 0.0,yoz,0.0,xoz, 0.0,xoy)) );
path->insert( 2.0,
ControlPoint(osg::Vec3(5.0,0.0,0.0), osg::Quat(osg::PI,yoz,0.0,xoz, 0.0,xoy)) );
path->insert( 4.0,
ControlPoint(osg::Vec3(5.0,0.0,5.0), osg::Quat(osg::PI,yoz,0.0,xoz,osg::PI,xoy)) );
path->insert( 6.0,
ControlPoint(osg::Vec3(0.0,0.0,5.0), osg::Quat( 0.0,yoz,0.0,xoz,osg::PI,xoy)) );
path->insert( 8.0,
ControlPoint(osg::Vec3(0.0,0.0,0.0), osg::Quat( 0.0,yoz,0.0,xoz, 0.0,xoy)) );
return path.release();
}