public override ChinaArea Position(MapPoint point)
{
if (this.Rects == null && (this.Area == null || this.Area.Length == 0))
{
return(null);
}
ChinaArea area = null;
if (this.Rects != null && this.Rects.Length > 0)
{
area = base.Position(point);
if (area != null && Area != null && Area.Length > 0)
{
foreach (var a in Area)
{
if (a.Name.EndsWith("市辖区"))
{
continue;
}
var piecearea = a.Position(point);
if (piecearea != null)
{
area = piecearea;
break;
}
}
}
}
else if (Area != null && Area.Length > 0)
{
foreach (var a in Area)
{
if (a.Name.EndsWith("市辖区"))
{
continue;
}
var piecearea = a.Position(point);
if (piecearea != null)
{
area = piecearea;
break;
}
}
}
return(area);
}
static void AddPostion(ChinaArea positon)
{
var key = Thread.CurrentThread.ManagedThreadId;
List <ChinaArea> list = null;
if (PositionDic.TryGetValue(key, out list))
{
list.Add(positon);
}
else
{
list = new List <ChinaArea>();
list.Add(positon);
PositionDic.TryAdd(key, list);
}
}
public override ChinaArea Position(MapPoint point)
{
if (this.Rects == null && (this.Cities == null || this.Cities.Length == 0))
{
return(null);
}
ChinaArea area = null;
if (this.Rects != null && this.Rects.Length > 0)
{
area = base.Position(point);
if (area != null && Cities != null && this.Cities.Length > 0)
{
foreach (var a in Cities)
{
var piecearea = a.Position(point);
if (piecearea != null)
{
area = piecearea;
break;
}
}
}
}
else if (this.Cities != null && this.Cities.Length > 0)
{
foreach (var a in Cities)
{
var piecearea = a.Position(point);
if (piecearea != null)
{
area = piecearea;
break;
}
}
}
return(area);
}
public static ChinaArea GetNearPosition(MapPoint point)
{
var key = Thread.CurrentThread.ManagedThreadId;
List <ChinaArea> list = null;
ChinaArea minitem = null;
var min = double.MaxValue;
var radlat = Rad(point.Y);
var radlon = Rad(point.X);
if (PositionDic.TryGetValue(key, out list))
{
list = list.Select(p => p).ToList();
foreach (var item in list)
{
if (item is Province)
{
var cities = (item as Province).Cities;
if (cities == null)
{
foreach (var pts in item.MapPointsList)
{
foreach (var pt in pts)
{
var dis = CalDistance2(radlat, radlon, Rad(pt.Y), Rad(pt.X));
if (dis < min)
{
min = dis;
minitem = item;
}
}
}
continue;
}
foreach (var city in cities)
{
var ct = city.Position(point);
if (ct != null)
{
return(ct);
}
foreach (var pts in city.MapPointsList)
{
foreach (var pt in pts)
{
var dis = CalDistance2(radlat, radlon, Rad(pt.Y), Rad(pt.X));
if (dis < min)
{
min = dis;
minitem = city;
}
}
}
}
}
}
if (min < 100000)
{
return(minitem);
}
return(null);
}
else
{
return(null);
}
}
