@Override
    protected Object toJmeObject() {
        throw new UnsupportedOperationException();
    }
Converts the euler angles from {@link #getVector3Value(long)} to
a quaternion rotation.
@param time Time at which to get the euler angles.
@return The rotation at time
jme3-plugins/src/fbx/java/com/jme3/scene/plugins/fbx/anim/FbxAnimCurveNode.java