public AngleAxisDirection Multiply(AngleAxisDirection aad)
{
xyAngle *= aad.xyAngle;
xzAngle *= aad.xzAngle;
yzAngle *= aad.yzAngle;
return(this);
}
public AngleAxisDirection Add(AngleAxisDirection aad)
{
xyAngle += aad.xyAngle;
xzAngle += aad.xzAngle;
yzAngle += aad.yzAngle;
return(this);
}