/// <summary>
/// 拓扑点转GMap标志点
/// </summary>
/// <param name="point"></param>
/// <returns></returns>
public GMapMarker PointToMarker(TopologyElement.Point point)
{
GMapMarker gMapMarker = new GMarkerGoogle(PointToMapPoint(point), GMarkerGoogleType.green);
gMapMarker.ToolTipText = string.Format("ID{0}:{1},{2}", point.ID, point.Lat, point.Lon);
gMapMarker.ToolTip.Foreground = Brushes.Black;
gMapMarker.ToolTip.TextPadding = new Size(20, 10);
return(gMapMarker);
}
private GMapRoute TwoPointsToLine(TopologyElement.Point point1, TopologyElement.Point point2, string arcId)
{
List <PointLatLng> points = new List <PointLatLng>();
points.Add(PointToMapPoint(point1));
points.Add(PointToMapPoint(point2));
GMapRoute route = new GMapRoute(points, arcId);
route.Stroke = new Pen(Color.BlueViolet, 3);
return(route);
}
/// <summary>
/// 添加GMapMarkerImage的点
/// </summary>
/// <param name="gMapMarker"></param>
//private void AddMarkers(GMapMarkerImage gMapMarker)
//{ markersOverlay.Markers.Add(gMapMarker); }
/// <summary>
/// 拓扑点转直线
/// </summary>
/// <param name="point1"></param>
/// <param name="point2"></param>
/// <returns></returns>
private GMapRoute TwoPointsToLine(TopologyElement.Point point1, TopologyElement.Point point2)
{
List <PointLatLng> points = new List <PointLatLng>();
points.Add(PointToMapPoint(point1));
points.Add(PointToMapPoint(point2));
GMapRoute route = new GMapRoute(points, "");
route.Stroke = new Pen(Color.Green, 3);
return(route);
}
private void gmap_Load(object sender, EventArgs e)
{
//加载谷歌中国地图
GMapProvider.TimeoutMs = 0;
gmap.MapProvider = GMapProviders.GoogleChinaMap;
gmap.MapProvider = GMap.NET.MapProviders.GoogleChinaMapProvider.Instance;
////加载谷歌卫星地图
//gmap.MapProvider = GMapProviders.GoogleChinaSatelliteMap;
//GMap.NET.GMaps.Instance.Mode = GMap.NET.AccessMode.ServerAndCache;
gmap.DragButton = System.Windows.Forms.MouseButtons.Left;
gmap.Zoom = 12;
gmap.ShowCenter = false;
gmap.MaxZoom = 24;
gmap.MinZoom = 2;
this.gmap.Position = new PointLatLng(39.923518, 116.539009);
this.gmap.IsAccessible = false;
GMapProvider.TimeoutMs = 1000;
TopologyElement.Point pt = new TopologyElement.Point();
pt.Lat = 39.923518;
pt.Lon = 116.539009;
pt.ID = 1;
}
/// <summary>
/// 获得纠偏后的地理坐标点
/// </summary>
/// <param name="pt">拓扑元素点</param>
/// <returns></returns>
private PointLatLng PointToMapPoint(TopologyElement.Point point)
{
double[] correctLatLng = transform(point.Lat, point.Lon);
return(new PointLatLng(correctLatLng[0], correctLatLng[1]));
}
