private static void WritePoint(XmlWriter writer, Point point, string label)
{
writer.WriteStartElement("PNT");
writer.WriteXmlAttribute("A", "2");
writer.WriteXmlAttribute("B", label);
writer.WriteXmlAttribute("C", point.Y.ToString(CultureInfo.InvariantCulture)); // Latitude
writer.WriteXmlAttribute("D", point.X.ToString(CultureInfo.InvariantCulture)); // Longitude
writer.WriteEndElement();
}