/// <summary>
/// 根据客户端发来的Graphic，在地图上画出该Graphic
/// Graphic以Json串形式发来
/// </summary>
/// <param name="json"></param>
public static void DrawBufferByJSON(JObject json)
{
PublicParams.pubMainMap.Dispatcher.BeginInvoke(new Action(() => {
try
{
Geometry geometry = Geometry.FromJson(json["GRAPHIC"]["Geometry"].ToString());
Graphic graphic = new Graphic()
{
Geometry = geometry
};
switch (json["TYPE"].ToString())
{
case "Polygon":
graphic.Symbol = PublicParams.fillSymbol;
break;
case "Polyline":
graphic.Symbol = PublicParams.lineSymbol;
break;
default:
break;
}
MapLayers.AddGraphicToGLayerByLayerID(graphic, PublicParams.gLayerDrawing);
}
catch (Exception)
{
}
}));
}
public static void ShowSearchCamerasByJson(JObject json)
{
PublicParams.pubMainMap.Dispatcher.BeginInvoke(new Action(() => {
try
{
Geometry geometry = Geometry.FromJson(json["GRAPHIC"]["Geometry"].ToString());
Graphic graphic = new Graphic()
{
Geometry = geometry, Symbol = PublicParams.symbolSearchCameras
};
MapLayers.AddGraphicToGLayerByLayerID(graphic, PublicParams.gLayerSearchCamerasNearCrime);
}
catch (Exception)
{
}
}));
}
/// <summary>
/// LPY 2016-3-25 添加
/// 根据JSON，在大屏上标出测量的距离或者面积结果
/// </summary>
/// <param name="json"></param>
public static void ShowLengthOrAreaByJSON(JObject json)
{
PublicParams.pubMainMap.Dispatcher.BeginInvoke(new Action(() =>
{
try
{
string result = json["RESULT"].ToString();
Geometry geometry = Geometry.FromJson(json["GRAPHIC"]["Geometry"].ToString());
Graphic graphic = new Graphic()
{
Geometry = geometry
};
switch (json["TYPE"].ToString())
{
case "Polygon":
graphic.Symbol = PublicParams.areaSymbol;
break;
case "Polyline":
graphic.Symbol = PublicParams.lengthSymbol;
break;
default:
break;
}
MapLayers.AddGraphicToGLayerByLayerID(graphic, PublicParams.gLayerLengthOrArea);
double xCenter = (graphic.Geometry.Extent.XMax + graphic.Geometry.Extent.XMin) / 2;//查找中心点
double yCenter = (graphic.Geometry.Extent.YMax + graphic.Geometry.Extent.YMin) / 2;
MapPoint mpCenter = new MapPoint(xCenter, yCenter, graphic.Geometry.SpatialReference);
TextSymbol txtSymbol = PublicParams.textSymbol;
Graphic gResult = new Graphic()
{
Geometry = mpCenter, Symbol = txtSymbol
};
gResult.Attributes["Result"] = result;
gResult.SetZIndex(2);
MapLayers.AddGraphicToGLayerByLayerID(gResult, PublicParams.gLayerLengthOrArea);
}
catch (Exception)
{
}
}));
}
private void DrawPoliceCarByJson(JObject json)
{
try
{
Graphic gPoliceCar = MapLayers.GetGraphicFromGLayerByID("TITLE", json["TITLE"].ToString(), PublicParams.gLayerPoliceCarGPS);
if (gPoliceCar != null)
{
gPoliceCar.Geometry = new MapPoint((double)json["X"], (double)json["Y"], new SpatialReference(4326));
gPoliceCar.Attributes["X"] = (double)json["X"];
gPoliceCar.Attributes["Y"] = (double)json["Y"];
MapLayers.RefreshGLayerByID(PublicParams.gLayerPoliceCarGPS);
if (PublicParams.pubInfoWin.IsOpen == true && (PublicParams.pubInfoWin.Content as JObject)["TITLE"].ToString() == gPoliceCar.Attributes["TITLE"].ToString())
{
PublicParams.pubInfoWin.Anchor = gPoliceCar.Geometry as MapPoint;
Point screenPoint = PublicParams.pubMainMap.MapToScreen(gPoliceCar.Geometry as MapPoint);
MapMethods.SendPoliceCarPositon(gPoliceCar, Convert.ToInt32(screenPoint.X), Convert.ToInt32(screenPoint.Y));
}
}
else//不存在该车辆，先添加该车辆到地图上
{
MapPoint mpGPS = new MapPoint((double)json["X"], (double)json["Y"], new SpatialReference(4326));
Symbol sGPS = App.Current.Resources["PoliceCarOnline"] as Symbol;
Graphic gNewCar = new Graphic()
{
Symbol = sGPS, Geometry = mpGPS
};
gNewCar.Attributes.Add("TITLE", json["TITLE"].ToString());
gNewCar.Attributes.Add("HH", json["HH"].ToString());//呼号
gNewCar.Attributes.Add("Class", "PoliceCar");
gNewCar.Attributes.Add("X", (double)json["X"]); gNewCar.Attributes.Add("Y", (double)json["Y"]);
MapLayers.AddGraphicToGLayerByLayerID(gNewCar, PublicParams.gLayerPoliceCarGPS);
MapLayers.RefreshGLayerByID(PublicParams.gLayerPoliceCarGPS);
}
}
catch (Exception)
{
}
}