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ArcGIS API for Silverlight 实现修改地图上的工程点位置 .

silverlight   发布时间：2022-05-03  发布网站：大佬教程  code.js-code.com
大佬教程收集整理的这篇文章主要介绍了ArcGIS API for Silverlight 实现修改地图上的工程点位置 .，大佬教程大佬觉得挺不错的，现在分享给大家，也给大家做个参考。

概述

[csharp] view plaincopyprint? 01. #region 处理工程点点击编辑相关事件 02. 03. public Graphic editgraphics = null; //待编辑的Graphics图层 04. public Graphic oldgraphics = null; //原先Graphics图层
[csharp] view plaincopyprint?
01. #region 处理工程点点击编辑相关事件   
02.  
03.        public Graphic editgraphics = null; //待编辑的Graphics图层   
04.        public Graphic oldgraphics = null; //原先Graphics图层   
05.        public Symbol symbolold = null;  
06.  
07.        /// <sumMary>   
08.        /// 在地图上点击编辑点处理事件   
09.        /// </sumMary>   
10.        /// <param name="sender"></param>   
11.        /// <param name="e"></param>   
12.        void mymap_MouSELEftButtonDown(object sender,MouseButtonEventArgs E)  
13.        {  
14.            ESRI.ArcGIs.CLIENt.Projection.WebMercator mercator = new ESRI.ArcGIs.CLIENt.Projection.WebMercator();  
15.            try  
16.            {  
17.                if (editgraphics != null)  
18.                {  
19.                    if (isedit)  
20.                    {  
21.                        System.Windows.Point screenPoint = e.GetPosition(mymap);  
22.                        ESRI.ArcGIs.CLIENt.Geometry.MapPoint mapPoint = mymap.ScreenToMap(screenPoint);  
23.                        double x = Math.round(R_55_11845@apPoint.X,4);  
24.                        double y = Math.round(R_55_11845@apPoint.Y,4);  
25.                        MapPoint mp = new MapPoint(x,y);  
26.                        editgraphics.Geometry = mp;  
27.                    }  
28.                    else  
29.                    {  
30.                        editgraphics = oldgraphics;  
31.                    }  
32.                }  
33.                else  
34.                {  
35.  
36.                }  
37.            }  
38.            catch (Exception)  
39.            {  
40.                return;  
41.            }  
42.        }  
43.  
44.        void graphic_MouSELEftButtonDown(object sender,MouseButtonEventArgs E)  
45.        {  
46.            Graphic graphic = sender as Graphic;  
47.            oldgraphics = graphic; //保存原先的Graphics图层   
48.            isedit = true;  
49.            //选工程点   
50.            if (graphic != null)  
51.            {  
52.                //将上一个图元还原第一个图元   
53.                if (symbolold != null)  
54.                {  
55.                    editgraphics.Symbol = symbolold;  
56.                }  
57.  
58.                editgraphics = graphic;  
59.                symbolold = editgraphics.Symbol;  
60.                editgraphics.Symbol = ((SimpleMarkerSymbol)this.FindName("SimpleSymbol"));  
61.  
62.                ESRI.ArcGIs.CLIENt.Geometry.MapPoint mp = (MapPoint)graphic.Geometry;  
63.                ESRI.ArcGIs.CLIENt.Projection.WebMercator mercator = new ESRI.ArcGIs.CLIENt.Projection.WebMercator();  
64.                mp = WKIDConvert.mercator2lonlat(ESRI.ArcGIs.CLIENt.Geometry.Geometry.NormalizeCentralMeridian(mp) as ESRI.ArcGIs.CLIENt.Geometry.MapPoint);  
65.                //打开Tab进行编辑操作   
66.                this.gridTab2.Width = new GridLength(278,GridUnitType.Pixel);  
67.                tbTip1.Text = "<<";  
68.                String title = graphic.Attributes["NAME"].ToString(); //工程名称   
69.                this.tbProjectName.Text = title;  
70.                this.tbLatitute.Text = Math.round(R_55_11845@p.X,4).ToString(); //经度   
71.                this.tbLongitute.Text = Math.round(R_55_11845@p.Y,4).ToString(); //纬度   
72.            }  
73.        }  
74.  
75.        void graphic_MouSELEftButtonUp(object sender,MouseButtonEventArgs E)  
76.        {  
77.            Graphic graphic = sender as Graphic;  
78.  
79.            editgraphics.Symbol = ((SimpleMarkerSymbol)this.FindName("SimpleSymbol"));  
80.  
81.            ESRI.ArcGIs.CLIENt.Geometry.MapPoint mp = (MapPoint)graphic.Geometry;  
82.            ESRI.ArcGIs.CLIENt.Projection.WebMercator mercator = new ESRI.ArcGIs.CLIENt.Projection.WebMercator();  
83.            mp = WKIDConvert.mercator2lonlat(ESRI.ArcGIs.CLIENt.Geometry.Geometry.NormalizeCentralMeridian(mp) as ESRI.ArcGIs.CLIENt.Geometry.MapPoint);  
84.            String title = graphic.Attributes["NAME"].ToString(); //工程名称   
85.            this.tbProjectName.Text = title;  
86.            this.tblEditName.Text = title;  
87.            this.tbLatitute.Text = Math.round(R_55_11845@p.X,4).ToString(); //经度   
88.            this.tbLongitute.Text = Math.round(R_55_11845@p.Y,4).ToString(); //纬度   
89.        }  
90.  
91.        void graphic_MouseMove(object sender,MouseEventArgs E)  
92.        {  
93.            Graphic graphic = sender as Graphic;  
94.            Grid grid = new Grid();  
95.            grid.BACkground = new SolidColorBrush(Colors.bluE);  
96.            TextBlock msg = new TextBlock();  
97.            msg.Foreground = new SolidColorBrush(Colors.WhitE);  
98.            msg.FontSize = 13;  
99.            msg.FontFamily = new FontFamily("Microsoft YaHei");  
100.            msg.Text = graphic.Attributes["NAME"].ToString();  
101.            grid.Children.Add(msg);  
102.            graphic.MapTip = grid;  
103.        }  
104.  
105.        RichTextBox rtb;  
106.  
107.        void graphic_MouseRightButtonUp(object sender,MouseButtonEventArgs E)  
108.        {  
109.            if (isedit)  
110.            {  
111.                //只有在选中点开始编辑后，才可以取消编辑   
112.                RTBContextMenu menu = new RTBContextMenu(rtb,this);  
113.                menu.Show(e.GetPosition(LayoutRoot));  
114.            }  
115.            else  
116.            {  
117.                //什么也不执行   
118.            }  
119.        }  
120.  
121.        void graphic_MouseRightButtonDown(object sender,MouseButtonEventArgs E)  
122.        {  
123.            e.Handled = true;  
124.        }  
125.  
126.        private void btnModify_Click(object sender,System.Windows.RoutedEventArgs E)  
127.        {  
128.            try  
129.            {  
130.                if (String.IsNullOrEmpty(this.tbProjectName.Text))  
131.                {  
132.                    messageBox.Show("请先选择一个工程点！");  
133.                }  
134.                else  
135.                {  
136.                    MapPoint mp = (MapPoint)editgraphics.Geometry;  
137.                    getDataSoapClient client = new getDataSoapClient();  
138.                    client.uPDAgePositionCompleted += new EventHandler<AsyncCompletedEventArgs>(client_uPDAgePositionCompleted);  
139.                    MapPoint mapPoint = WKIDConvert.mercator2lonlat(ESRI.ArcGIs.CLIENt.Geometry.Geometry.NormalizeCentralMeridian(mp) as ESRI.ArcGIs.CLIENt.Geometry.MapPoint);  
140.                    client.uPDAgePositionAsync(this.tbProjectName.Text,Math.round(R_55_11845@apPoint.X,4).ToString(),Math.round(R_55_11845@apPoint.Y,4).ToString());  
141.                }  
142.            }  
143.            catch (Exception)  
144.            {  
145.                messageBox.Show("请先选择一个工程点！");  
146.            }  
147.  
148.        }  
149.  
150.        void client_uPDAgePositionCompleted(object sender,AsyncCompletedEventArgs E)  
151.        {  
152.            //重新加载数据,这里需要维持地图缩放的比例   
153.            ESRI.ArcGIs.CLIENt.Projection.WebMercator mercator = new ESRI.ArcGIs.CLIENt.Projection.WebMercator();  
154.            ESRI.ArcGIs.CLIENt.Geometry.Envelope SELEctedFeatureExtent = mercator.ToGeographic(editgraphics.Geometry).Extent; //选中点的位置   
155.            double expandPercentage = 10;  
156.  
157.            //加数值后，聚焦（这里需要注意，进行地理坐标和墨卡托坐标的转换）   
158.            double widthExpand = (SELEctedFeatureExtent.Width + 5) * (expandPercentage / 100);  
159.            double heightExpand = (SELEctedFeatureExtent.Height + 5) * (expandPercentage / 100);  
160.            ESRI.ArcGIs.CLIENt.Geometry.Envelope displayExtent = new Envelope(WKIDConvert.lonlat2R_55_11845@ercator(new MapPoint(SELEctedFeatureExtent.XMin - (widthExpand / 2),SELEctedFeatureExtent.ymin - (heightExpand / 2))),WKIDConvert.lonlat2R_55_11845@ercator(new MapPoint(SELEctedFeatureExtent.XMax + (widthExpand / 2),SELEctedFeatureExtent.ymax + (heightExpand / 2))))  
161.            {  
162.                SpatialReference = new SpatialReference(102100)  
163.            };  
164.  
165.            messageBox.Show("工程位置更新成功！");  
166.            //重新加载地图   
167.            GetGCInfoByType(tip_Base.Currentvalue);  
168.            //重新置文本输入框为空   
169.            this.tbProjectName.Text = "";  
170.            this.tbLatitute.Text = "";  
171.            this.tbLongitute.Text = "";  
172.        }  
173. 
174.        #endregion   
175.          
176.using System;  
177.using System.Net;  
178.using System.Windows;  
179.using System.Windows.Controls;  
180.using System.Windows.Documents;  
181.using System.Windows.Ink;  
182.using System.Windows.Input;  
183.using System.Windows.Media;  
184.using System.Windows.Media.Animation;  
185.using System.Windows.Shapes;  
186.using System.Windows.Media.Imaging;  
187.using System.Windows.Media.Effects;  
188.using ESRI.ArcGIs.CLIENt.Featureservice.Symbols;  
189.using ESRI.ArcGIs.CLIENt.Geometry;  
190.  
191.  
192.namespace MapClient.CommonClass  
193.{  
194.    public class RTBContextMenu : ContextMenu  
195.    {  
196.        RichTextBox rtb;  
197.        GCSiteM _gcSite;  
198.  
199.        public RTBContextMenu(RichTextBox rtb,GCSiteM gcSitE)  
200.        {  
201.            this.rtb = rtb;  
202.            _gcSite = gcSite;  
203.        }  
204.  
205.  
206.        //构造菜单按钮并返回一个FrameworkElement对象   
207.        protected override FrameworkElement GetContent()  
208.        {  
209.            Border border = new Border() { BorderBrush = new SolidColorBrush(Color.FromArgb(255,167,171,176)),BorderThickness = new Thickness(1),BACkground = new SolidColorBrush(Colors.WhitE) };  
210.            border.Effect = new DropShadowEffect() { BlurRadius = 3,Color = Color.FromArgb(255,230,227,236) };  
211.  
212.  
213.            //取消选中   
214.            Button tjspButton = new Button() { Height = 22,Margin = new Thickness(0,0),HorizontalAlignment = HorizontalAlignment.Stretch,VerticalAlignment = VerticalAlignment.Top,HorizontalContentAlignment = HorizontalAlignment.Left };  
215.            tjspButton.Style = Application.Current.resources["ContextMenuButton"] as Style;  
216.            tjspButton.Click += new RoutedEventHandler(tjspButton_Click);  
217.  
218.            tjspButton.Content = "取消选中";  
219.  
220.            border.Child = tjspButton;  
221.            return border;  
222.        }  
223.  
224.  
225.        void tjspButton_Click(object sender,RoutedEventArgs E)  
226.        {  
227.            //恢复原来的颜色   
228.            _gcSite.editgraphics.Symbol = new SimpleMarkerSymbol()  
229.            {  
230.                Color = new SolidColorBrush(ColorRevert.ToColor("#FF0551A7")),231.                Size = 10,232.                Style = ESRI.ArcGIs.CLIENt.Featureservice.Symbols.SimpleMarkerSymbol.SimpleMarkerStyle.Circle  
233.            };  
234.            _gcSite.isedit = false;  
235.  
236.  
237.            //重新加载数据,这里需要维持地图缩放的比例   
238.            ESRI.ArcGIs.CLIENt.Projection.WebMercator mercator = new ESRI.ArcGIs.CLIENt.Projection.WebMercator();  
239.            ESRI.ArcGIs.CLIENt.Geometry.Envelope SELEctedFeatureExtent = mercator.ToGeographic(_gcSite.oldgraphics.Geometry).Extent; //原先选中点的位置   
240.            double expandPercentage = 10;  
241.  
242.  
243.            //加数值后，聚焦（这里需要注意，进行地理坐标和墨卡托坐标的转换）   
244.            double widthExpand = (SELEctedFeatureExtent.Width + 5) * (expandPercentage / 100);  
245.            double heightExpand = (SELEctedFeatureExtent.Height + 5) * (expandPercentage / 100);  
246.            ESRI.ArcGIs.CLIENt.Geometry.Envelope displayExt http:// ent = new Envelope(WKIDConvert.lonlat2R_55_11845@ercator(new MapPoint(SELEctedFeatureExtent.XMin - (widthExpand / 2),SELEctedFeatureExtent.ymax + (heightExpand / 2))))   
247.            {  
248.                SpatialReference = new SpatialReference(102100)  
249.            };  
250.  
251.  
252.            //重新加载地图   
253.            _gcSite.GetGCInfoByType(tip_Base.Currentvalue);  
254.            //重新置文本输入框为空   
255.            _gcSite.tbProjectName.Text = "";  
256.            _gcSite.tbLatitute.Text = "";  
257.            _gcSite.tbLongitute.Text = "";  
258.            Close();  
259.        }  
260.    }  
261.}


 

以上使用到的右键菜单功能ContextMenu.cs类请参考：http://blog.csdn.net/taomanman/article/details/7333612

 

 

原文地址http://blog.csdn.net/taomanman/article/details/8602366

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