/// <summary>
/// Gets the length in bytes the Geometry will need when written as a shape file record.
/// </summary>
/// <param name="geometry">The Geometry object to use.</param>
/// <returns>The length in bytes the Geometry will use when represented as a shape file record.</returns>
public override int GetLength(Geometry geometry)
{
int numParts=GetNumParts(geometry);
return (22 + (2 * numParts) + geometry.GetNumPoints() * 8);
}