How to use

getControlPoints

method

in

org.deegree.geometry.primitive.Ring

/**
 * @param linearRing
 * @throws XMLStreamException
 * @throws UnknownCRSException
 * @throws TransformationException
 */
public void exportLinearRing( Ring linearRing )
            throws XMLStreamException, TransformationException, UnknownCRSException {
  startGeometry( "LinearRing", linearRing );
  exportCoordinates( linearRing.getControlPoints() );
  writer.writeEndElement(); // </gml:LinearRing>
}

@Override
public Points getExteriorRingCoordinates() {
  if ( patches.size() == 1 ) {
    if ( patches.get( 0 ) instanceof PolygonPatch ) {
      PolygonPatch patch = (PolygonPatch) patches.get( 0 );
      return patch.getExteriorRing().getControlPoints();
    }
    throw new IllegalArgumentException( Messages.getMessage( "SURFACE_IS_NON_PLANAR" ) );
  }
  throw new IllegalArgumentException( Messages.getMessage( "SURFACE_MORE_THAN_ONE_PATCH" ) );
}

@Override
public List<Points> getInteriorRingsCoordinates() {
  List<Points> controlPoints = new ArrayList<Points>();
  if ( patches.size() == 1 ) {
    if ( patches.get( 0 ) instanceof PolygonPatch ) {
      PolygonPatch patch = (PolygonPatch) patches.get( 0 );
      List<Ring> interiorRings = patch.getInteriorRings();
      for ( Ring ring : interiorRings ) {
        controlPoints.add( ring.getControlPoints() );
      }
    } else {
      throw new IllegalArgumentException( Messages.getMessage( "SURFACE_IS_NON_PLANAR" ) );
    }
  } else {
    throw new IllegalArgumentException( Messages.getMessage( "SURFACE_MORE_THAN_ONE_PATCH" ) );
  }
  return controlPoints;
}

private LinearRing transform( Ring ring, Transformation trans )
            throws TransformationException {
  if ( ring != null ) {
    // TODO DefaultRing.getAsLineString currently returns an UnsupportedOpertionException
    // interior.getAsLineString().getControlPoints(),
    Points cP = ring.getControlPoints();
    Points tcP = transform( cP, trans );
    return geomFactory.createLinearRing( ring.getId(), getTargetCRS(), tcP );
  }
  return null;
}