arcgis中创建图元(Graphic)对象
作者：互联网
arcgis中创建图元(Graphic)对象
using System;
using System.Collections.Generic;
using System.Runtime.Serialization;
using System.Windows.Controls;
using System.Windows.Media;
using ESRI.ArcGIS.Client;
using ESRI.ArcGIS.Client.Geometry;
using ESRI.ArcGIS.Client.Symbols;
namespace ArcGISSilverlightSDK
{
public partial class AddGraphics : UserControl
{
private static ESRI.ArcGIS.Client.Projection.WebMercator mercator =
new ESRI.ArcGIS.Client.Projection.WebMercator();
public AddGraphics()
{
InitializeComponent();
AddMarkerGraphics();
AddPictureMarkerAndTextGraphics();
AddLineGraphics();
AddPolygonGraphics();
}
void AddMarkerGraphics()
{
string jsonCoordinateString = "{'Coordinates':[{'X':13,'Y':55.59},{'X':72.83,'Y':18.97},{'X':55.43,'Y':34.3}]}";
CustomCoordinateList coordinateList = DeserializeJson<CustomCoordinateList>(jsonCoordinateString);
GraphicsLayer graphicsLayer = MyMap.Layers["MyGraphicsLayer"] as GraphicsLayer;
for (int i = 0; i < coordinateList.Coordinates.Count; i++)
{
Graphic graphic = new Graphic()
{
Geometry = mercator.FromGeographic(new MapPoint(coordinateList.Coordinates[i].X, coordinateList.Coordinates[i].Y)),
Symbol = i > 0 ? LayoutRoot.Resources["RedMarkerSymbol"] as Symbol : LayoutRoot.Resources["BlackMarkerSymbol"] as Symbol
};
graphicsLayer.Graphics.Add(graphic);
}
}
private void AddPictureMarkerAndTextGraphics()
{
string gpsNMEASentences = "$GPGGA, 92204.9, -35.6334, N, -60.2343, W, 1, 04, 2.4, 25.7, M,,,,*75\r\n" +
"$GPGGA, 92510.5, -49.9334, N, -65.2131, W, 1, 04, 2.6, 1.7, M,,,,*75\r\n";
string[] gpsNMEASentenceArray = gpsNMEASentences.Split('\n');
GraphicsLayer graphicsLayer = MyMap.Layers["MyGraphicsLayer"] as GraphicsLayer;
for (int i = 0; i < gpsNMEASentenceArray.Length - 1; i++)
{
string[] gpsNMEASentence = gpsNMEASentenceArray[i].Split(',');
Graphic graphic = new Graphic()
{
Geometry = mercator.FromGeographic(new MapPoint(Convert.ToDouble(gpsNMEASentence[4], System.Globalization.CultureInfo.InvariantCulture),
Convert.ToDouble(gpsNMEASentence[2], System.Globalization.CultureInfo.InvariantCulture))),
Symbol = LayoutRoot.Resources["GlobePictureSymbol"] as Symbol
};
graphicsLayer.Graphics.Add(graphic);
TextSymbol textSymbol = new TextSymbol()
{
FontFamily = new System.Windows.Media.FontFamily("Arial"),
Foreground = new System.Windows.Media.SolidColorBrush(Colors.Black),
FontSize = 10,
Text = gpsNMEASentence[9]
};
Graphic graphicText = new Graphic()
{
Geometry = mercator.FromGeographic(new MapPoint(Convert.ToDouble(gpsNMEASentence[4], System.Globalization.CultureInfo.InvariantCulture),
Convert.ToDouble(gpsNMEASentence[2], System.Globalization.CultureInfo.InvariantCulture))),
Symbol = textSymbol
};
graphicsLayer.Graphics.Add(graphicText);
}
}
private void AddLineGraphics()
{
string geoRSSLine = @"<?xml version='1.0' encoding='utf-8'?>
<feed xmlns='http://www.w3.org/2005/Atom' xmlns:georss='http://www.georss.org/georss'>
<georss:line>-118.169, 34.016, -104.941, 39.7072, -96.724, 32.732</georss:line>
<georss:line>-28.69, 14.16, -14.91, 23.702, -1.74, 13.72</georss:line>
</feed>";
List<ESRI.ArcGIS.Client.Geometry.Polyline> polylineList = new List<ESRI.ArcGIS.Client.Geometry.Polyline>();
using (System.Xml.XmlReader xmlReader = System.Xml.XmlReader.Create(new System.IO.StringReader(geoRSSLine)))
{
while (xmlReader.Read())
{
switch (xmlReader.NodeType)
{
case System.Xml.XmlNodeType.Element:
string nodeName = xmlReader.Name;
if (nodeName == "georss:line")
{
string lineString = xmlReader.ReadElementContentAsString();
string[] lineCoords = lineString.Split(',');
ESRI.ArcGIS.Client.Geometry.PointCollection pointCollection = new ESRI.ArcGIS.Client.Geometry.PointCollection();
for (int i = 0; i < lineCoords.Length; i += 2)
{
pointCollection.Add(new MapPoint(Convert.ToDouble(lineCoords[i], System.Globalization.CultureInfo.InvariantCulture),
Convert.ToDouble(lineCoords[i + 1], System.Globalization.CultureInfo.InvariantCulture)));
}
ESRI.ArcGIS.Client.Geometry.Polyline polyline = new ESRI.ArcGIS.Client.Geometry.Polyline();
polyline.Paths.Add(pointCollection);
polylineList.Add(polyline);
}
break;
}
}
}
GraphicsLayer graphicsLayer = MyMap.Layers["MyGraphicsLayer"] as GraphicsLayer;
foreach (ESRI.ArcGIS.Client.Geometry.Polyline polyline in polylineList)
{
Graphic graphic = new Graphic()
{
Symbol = LayoutRoot.Resources["DefaultLineSymbol"] as Symbol,
Geometry = mercator.FromGeographic(polyline)
};
graphicsLayer.Graphics.Add(graphic);
}
}
private void AddPolygonGraphics()
{
string coordinateString1 = "130,5.59 118.42,3.92 117.3,23.3 143.2,22.9 130,5.59";
GraphicsLayer graphicsLayer = MyMap.Layers["MyGraphicsLayer"] as GraphicsLayer;
PointCollectionConverter pointConverter = new PointCollectionConverter();
ESRI.ArcGIS.Client.Geometry.PointCollection pointCollection1 =
pointConverter.ConvertFromString(coordinateString1) as ESRI.ArcGIS.Client.Geometry.PointCollection;
ESRI.ArcGIS.Client.Geometry.Polygon polygon1 = new ESRI.ArcGIS.Client.Geometry.Polygon();
polygon1.Rings.Add(pointCollection1);
Graphic graphic = new Graphic()
{
Geometry = mercator.FromGeographic(polygon1),
Symbol = LayoutRoot.Resources["DefaultFillSymbol"] as Symbol
};
graphicsLayer.Graphics.Add(graphic);
}
internal static T DeserializeJson<T>(string json)
{
T objectInstance = Activator.CreateInstance<T>();
System.IO.MemoryStream memoryStream = new System.IO.MemoryStream(System.Text.Encoding.Unicode.GetBytes(json));
System.Runtime.Serialization.Json.DataContractJsonSerializer jsonSerializer =
new System.Runtime.Serialization.Json.DataContractJsonSerializer(objectInstance.GetType());
objectInstance = (T)jsonSerializer.ReadObject(memoryStream);
memoryStream.Close();
return objectInstance;
}
}
[DataContract]
public class CustomCoordinateList
{
[DataMember]
public List<CustomCoordinate> Coordinates = new List<CustomCoordinate>();
}
[DataContract]
public class CustomCoordinate
{
public CustomCoordinate() { }
public CustomCoordinate(double x, double y)
{
this.X = x;
this.Y = y;
}
[DataMember]
public double X { get; set; }
[DataMember]
public double Y { get; set; }
}
}
arcgis for silverlight 为graphiclayer 上的点添加属性信息和获取属性信息
分类： silverlight王国 2012-06-11 14:06 200人阅读 评论(0) 收藏 举报
silverlightnullexception测试存储
#region 获取所有权限视频点加载到图层
private void MonitorpointInfo()
{
#region 测试数据
//foreach (MapService.MonitorModel objMonitor in lisMonitor)
//{
// if ((objMonitor.X != null || objMonitor.X != "") && (objMonitor.Y != null || objMonitor.Y != ""))
// {
// }
//}
//MonitorModel objM1=new MonitorModel()
//{
// X = 98318.3584436682,
// Y = 3498207.6618042
//};
//MonitorModel objM2 = new MonitorModel()
//{
// X = 98328.3584436682,
// Y = 3498207.6618042
//};
//MonitorModel objM3 = new MonitorModel()
//{
// X = 98338.3584436682,
// Y = 3498207.6618042
//};
//lisMonitor.Add(objM1);
//lisMonitor.Add(objM2);
//lisMonitor.Add(objM3);
#endregion
// 单个视频点
ESRI.ArcGIS.Client.Graphic graphic = null;
// 为了使视频点能够随着地图比例的变化改变使用面
ESRI.ArcGIS.Client.Geometry.MapPoint mapPointVideo = null;
for (int i = 0; i < lisMonitor.Count; i++)
{
MapService.MonitorModel objMM = lisMonitor[i];
if ((objMM.X != null && objMM.X != "") && (objMM.Y != null && objMM.Y != ""))
{
mapPointVideo = new MapPoint(double.Parse(objMM.X), double.Parse(objMM.Y));
graphic = new ESRI.ArcGIS.Client.Graphic()
{
Geometry = mapPointVideo,
Symbol = this.LayoutRoot.Resources["DefaultPictureSymbol"] as ESRI.ArcGIS.Client.Symbols.Symbol
};
graphic.Attributes.Add("MonitorId", objMM.MonitorId);
graphic.Attributes.Add("Address", objMM.Address);
graphic.Attributes.Add("GroupId", objMM.GroupId);
graphic.Attributes.Add("Memo", objMM.Memo);
graphic.Attributes.Add("MonitorCode", objMM.MonitorCode);
graphic.Attributes.Add("MonitorGuid", objMM.MonitorGuid);
graphic.Attributes.Add("MonitorIp", objMM.MonitorIp);
graphic.Attributes.Add("MonitorUrl", objMM.MonitorUrl);
graphic.Attributes.Add("MonitorName", objMM.MonitorName);
graphic.Attributes.Add("X", objMM.X);
graphic.Attributes.Add("Y", objMM.Y);
graphic.Attributes.Add("Towns", objMM.Towns);
graphic.Attributes.Add("MonitorPort", objMM.MonitorPort);
graphic.Attributes.Add("UserCode", objMM.UserCode);
graphic.Attributes.Add("PassWord", objMM.PassWord);
//string strid = objgraphic.Attributes["ID"].ToString();
// 构建提示信息
FrameworkElement mapTipElement = GetMapTipInfo(objMM);
if (mapTipElement != null)
{
graphic.MapTip = mapTipElement;
graphic.MapTip.Opacity = 1;
}
featureLayerMonitor.Graphics.Add(graphic);
}
else
{
lisMonitor.RemoveAt(i);
i--;
}
}
// 设置其聚簇显示
FlareClusterer myflareClusterer = new FlareClusterer();
//设置背景色
myflareClusterer.FlareBackground = new SolidColorBrush(Colors.Orange);
//设置前景色
myflareClusterer.FlareForeground = new SolidColorBrush() { Color = Color.FromArgb(99, 0, 0, 0) };
// 设置以像素为单位的聚集半径
myflareClusterer.Radius = 20;
// 聚集的最大个数，超过则用大聚集设置Gradient
myflareClusterer.MaximumFlareCount = 30;
featureLayerMonitor.Clusterer = myflareClusterer;
this.CurrentMap.Layers.Add(featureLayerMonitor);
}
#endregion
/////////获取点的属性信息
case SilverlightMap.MainPage.ToolType.EditMonitor:
Envelope envelope2 = e.Geometry as Envelope;
MapPoint mapPoint11 = new MapPoint(envelope2.Extent.XMax, envelope2.Extent.YMax);
MapPoint mapPoint12 = new MapPoint(envelope2.Extent.XMin, envelope2.Extent.YMin);
GeneralTransform generalTran1 = objCurrentMap.TransformToVisual(App.Current.RootVisual);
Point point11 = generalTran1.Transform(objCurrentMap.MapToScreen(mapPoint11));
Point point12 = generalTran1.Transform(objCurrentMap.MapToScreen(mapPoint12));
Rect selrect = new Rect(point11, point12);
GraphicsLayer gralayer1 = objCurrentMap.Layers["FEATURELAYERMONITOR"] as GraphicsLayer;
IEnumerable<Graphic> graphicList1 = gralayer1.FindGraphicsInHostCoordinates(selrect);
if (graphicList1.Count() != 1 )
{
MessageBox.Show("请选中一个视频点，再进行编辑！", "修改视频点", MessageBoxButton.OK);
break;
}
foreach (Graphic objgraphic in graphicList1)
{
try
{
MapService.MonitorModel objEditMonitor = new MapService.MonitorModel();
//存储编辑视频点
Graphic objEditgraphic = objgraphic;
objEditMonitor.MonitorName = objEditgraphic.Attributes["MonitorName"].ToString();
objEditMonitor.MonitorId = int.Parse(objEditgraphic.Attributes["MonitorId"].ToString());
objEditMonitor.Address = objEditgraphic.Attributes["Address"].ToString();
objEditMonitor.GroupId = int.Parse(objEditgraphic.Attributes["GroupId"].ToString());
objEditMonitor.Memo = objEditgraphic.Attributes["Memo"].ToString();
objEditMonitor.MonitorCode = objEditgraphic.Attributes["MonitorCode"].ToString();
objEditMonitor.MonitorGuid = objEditgraphic.Attributes["MonitorGuid"].ToString();
objEditMonitor.MonitorIp = objEditgraphic.Attributes["MonitorIp"].ToString();
objEditMonitor.MonitorUrl = objEditgraphic.Attributes["MonitorUrl"].ToString();
objEditMonitor.X = objEditgraphic.Attributes["X"].ToString();
objEditMonitor.Y = objEditgraphic.Attributes["Y"].ToString();
objEditMonitor.Towns = objEditgraphic.Attributes["Towns"].ToString();
objEditMonitor.MonitorPort = objEditgraphic.Attributes["MonitorPort"].ToString() == string.Empty ? 80 : int.Parse(objEditgraphic.Attributes["MonitorPort"].ToString());
objEditMonitor.UserCode = objEditgraphic.Attributes["UserCode"].ToString();
objEditMonitor.PassWord = objEditgraphic.Attributes["PassWord"].ToString();
// 弹出新增的视频点的输入框
MonitorEditInfo WinMonitorEdit = new MonitorEditInfo(objEditMonitor);
WinMonitorEdit.FlwinIdentify.IsOpen = false;
// 设置显示的位置
WinMonitorEdit.FlwinIdentify.InitialLeft = 100;
WinMonitorEdit.FlwinIdentify.InitialTop = 70;
// 添加该弹出框
objCurrentPage.LayoutRoot.Children.Add(WinMonitorEdit);
WinMonitorEdit.FlwinIdentify.IsOpen = true;
}
catch (Exception ex)
{
MapService.Service1Client objWcfAgency = SilverlightMap.UtilityClass.WcfAgency.GetMapServer();
objWcfAgency.RecordExceptionToFileAsync(ex);
}
}
objCurrentPage.CurrentToolType = SilverlightMap.MainPage.ToolType.Pan;
break;
标签：objMM,Graphic,创建,System,arcgis,Add,graphic,new,Attributes 来源： https://www.cnblogs.com/devgis/p/16524748.html