return Plane.POSITIVE_SIDE;
return Plane.NO_SIDE;
    public int whichSide(Plane plane) {        float fRadius=FastMath.abs(extent.x*(plane.getNormal().dot(xAxis)))+                FastMath.abs(extent.y*(plane.getNormal().dot(yAxis)))+                FastMath.abs(extent.z*(plane.getNormal().dot(zAxis)));        float fDistance=plane.pseudoDistance(center);        if (fDistance <=-fRadius)            return Plane.NEGATIVE_SIDE;        else            return Plane.POSITIVE_SIDE;    }