public static List <PolygonMap> GetPolygonsOnMap(string ResultKML)
{
List <PolygonMap> Polygons = new List <PolygonMap>();
XmlDocument xd = new XmlDocument();
xd.LoadXml(ResultKML);
XmlNode kml = xd.DocumentElement;
XmlNodeList GeoObjectTemp = xd.GetElementsByTagName("Folder");
foreach (XmlNode node in GeoObjectTemp)
{
foreach (XmlNode item in node.ChildNodes)
{
if (item.Name == "Placemark")
{
PolygonMap Polygon = new PolygonMap();
bool IsPolygon = false;
foreach (XmlNode PlacemarkItems in item.ChildNodes)
{
if (PlacemarkItems.Name == "description")
{
IsPolygon = (PlacemarkItems.InnerXml.Trim() == "Polygon");
}
else if (PlacemarkItems.Name == "name")
{
Polygon.Id = PlacemarkItems.InnerXml;
}
else if (PlacemarkItems.Name == "LinearRing")
{
Polygon.Points = PolygonMap.GetPointsFromString(item.LastChild["coordinates"].InnerXml.Replace(',', ' '));
}
}
if (IsPolygon)
{
Polygons.Add(Polygon);
}
}
}
}
return(Polygons);
}
/// <summary>
/// Возвращаем Id полигона, которому пренадлежит точка
/// </summary>
/// <param name="polygons">Полигоны, которых нужно искать точку</param>
/// <param name="mainPoint">Точка для проверки</param>
/// <returns>Возвращает Id полигона</returns>
public static string GetIdPolygonOwnerPoint( PolygonMap[] polygons, PointD mainPoint )
{
return polygons.Where(x => x.IsInPolygon(mainPoint)).Select(polygonMap => polygonMap.Id).FirstOrDefault();
}