anonymous_namespace{ObjectLocator.cpp} Namespace Reference

Functions
void	getHPRFromQuat (const osg::Quat &q, double &h, double &p, double &r)

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Function Documentation

void anonymous_namespace{ObjectLocator.cpp}::getHPRFromQuat	(	const osg::Quat &	q,
		double &	h,
		double &	p,
		double &	r
	)

Definition at line 12 of file ObjectLocator.cpp.

    {
        osg::Matrixd rot(q);
        p = asin(rot(1,2));
        if( osg::equivalent(osg::absolute(p), osg::PI_2) )
        {
            r = 0.0;
            h = atan2( rot(0,1), rot(0,0) );
        }
        else
        {
            r = atan2( rot(0,2), rot(2,2) );
            h = atan2( rot(1,0), rot(1,1) );
        }
        h = osg::RadiansToDegrees(h);
        p = osg::RadiansToDegrees(p);
        r = osg::RadiansToDegrees(r);
    }

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