dvdoug / PHPCoord

     *

     * @return OSRef

     */

    public function toOSRef()

    {

        $this->toOSGB36();

        $OSGB = new OSRef(0, 0); //dummy to get reference data

        $scale = $OSGB->getScaleFactor();

        $N0 = $OSGB->getOriginNorthing();

        $E0 = $OSGB->getOriginEasting();

        $phi0 = $OSGB->getOriginLatitude();

        $lambda0 = $OSGB->getOriginLongitude();

        $coords = $this->toTransverseMercatorEastingNorthing($scale, $E0, $N0, $phi0, $lambda0);

        return new OSRef(round($coords['E']), round($coords['N']), $this->h);

    }

    /**

     * Convert this LatLng object into an ITM grid reference

     *

     * @return ITMRef

     */

    public function toITMRef()

    {

        $this->toWGS84();

        $ITM = new ITMRef(0, 0); //dummy to get reference data

        $scale = $ITM->getScaleFactor();

        $N0 = $ITM->getOriginNorthing();

        $E0 = $ITM->getOriginEasting();

        $phi0 = $ITM->getOriginLatitude();

        $lambda0 = $ITM->getOriginLongitude();

        $coords = $this->toTransverseMercatorEastingNorthing($scale, $E0, $N0, $phi0, $lambda0);

        return new ITMRef(round($coords['E']), round($coords['N']), $this->h);

    }

    /**