public void FitToMarkers()
{
var rect = _gmapControl.GetRectOfAllMarkers(StandardOverlayName);
if (rect != null)
{
_gmapControl.SetZoomToFitRect(rect.Value);
UpdateCurrentCoords();
}
}
public void ShowAll()
{
if (_gMap == null)
{
return;
}
var rect = GetRectOfAllMarkers();
if (rect.HasValue &&
!double.IsNaN(rect.Value.Lat) && !double.IsInfinity(rect.Value.Lat) &&
!double.IsNaN(rect.Value.Lng) && !double.IsInfinity(rect.Value.Lng) &&
!double.IsNaN(rect.Value.WidthLng) && !double.IsInfinity(rect.Value.WidthLng) &&
!double.IsNaN(rect.Value.HeightLat) && !double.IsInfinity(rect.Value.HeightLat) &&
RectLatLng.FromLTRB(-180, 90, 180, -90).Contains(rect.Value))
{
_gMap.SetZoomToFitRect(rect.Value);
}
}
/// <summary>
/// 按单位加载场地
/// </summary>
/// <param name="ub"></param>
/// <param name="gMapCtrl"></param>
public static void ZoomToSiteByUnit(UnitInfoBean ub, GMapControl gMapCtrl)
{
try
{
ClearAllSiteMarker(gMapCtrl);
if (IsLayerExisted("unitlayer", gMapCtrl))
{
GetOverlay("unitlayer", gMapCtrl).Polygons.Clear();
}
List <SiteBean> sblist = SiteBll.Instance.GetWhere(new { UNITCODE = ub.UnitCode }).ToList();//获取数据
//DataTable sitedb = SiteBll.Instance.GetDataTable("select UNITCODE,SITECODE,SITENAME,SITETYPE,HISTORYSITE," +
// "LONGTITUDE,LATITUDE,ALTITUDE,PLACE,FAULTCODE,STARTDATE,SITESTATUS,MARKSTONETYPE,BUILDUNIT,OBSUNIT," +
// "SITESITUATION,GEOSITUATION,NOTE,LOCATIONS,OTHERSITUATION,DATACHG,XZQCODE,OBSCYC from t_siteinfodb where UNITCODE='" + ub.UnitCode + "'");
//ModelHandler<SiteBean> mh = new ModelHandler<SiteBean>();
//foreach (DataRow dr in sitedb.Rows)
//{
// sblist.Add(mh.FillModel(dr));
//}
if (sblist == null)
{
return;
}
if (sblist.Count == 0)
{
return;
}
List <PointLatLng> plllist = new List <PointLatLng>();
#region 获取最大最小角点坐标
double minlat = double.MaxValue;
double minlgt = double.MaxValue;
double maxlat = double.MinValue;
double maxlgt = double.MinValue;
foreach (SiteBean sb in sblist)
{
if (sb.Latitude == 0 || sb.Longtitude == 0)
{
continue;
}
if (sb.Latitude < minlat)
{
minlat = sb.Latitude;
}
if (sb.Longtitude < minlgt)
{
minlgt = sb.Longtitude;
}
if (sb.Latitude > maxlat)
{
maxlat = sb.Latitude;
}
if (sb.Longtitude > maxlgt)
{
maxlgt = sb.Longtitude;
}
}
minlat = minlat - 0.2;
minlgt = minlgt - 0.2;
maxlat = maxlat + 0.2;
maxlgt = maxlgt + 0.2;
#endregion
plllist.Add(new PointLatLng(minlat, minlgt));
plllist.Add(new PointLatLng(maxlat, minlgt));
plllist.Add(new PointLatLng(maxlat, maxlgt));
plllist.Add(new PointLatLng(minlat, maxlgt));
// GMapPolygon gmp = new GMapPolygon(plllist, ub.UnitName);
//GMapOverlay unitOverlay = IsLayerExisted("unitlayer", gMapCtrl) ? GetOverlay("unitlayer", gMapCtrl) : new GMapOverlay("unitlayer");
//Pen pen = new Pen(Color.Red, 2);
//pen.DashStyle = DashStyle.DashDot;
//pen.DashPattern = new float[] { 1f, 1f };
//gmp.Stroke = pen;
//gmp.Fill = new SolidBrush(Color.FromArgb(50, Color.LightBlue));
//if (!IsLayerExisted("unitlayer", gMapCtrl))
// gMapCtrl.Overlays.Add(unitOverlay);
// unitOverlay.Polygons.Add(gmp);
AddSiteMarker(sblist, gMapCtrl);
gMapCtrl.SetZoomToFitRect(new RectLatLng(maxlat, minlgt, maxlgt - minlgt, maxlat - minlat));
}
catch (Exception ex)
{
}
}
