Graphic edit and Spatial Analyst

GisDevelop_Exp/MainWindow.xaml

@@ -6,7 +6,8 @@
         xmlns:esri="http://schemas.esri.com/arcgis/runtime/2013"
         xmlns:local="clr-namespace:GisDevelop_Exp"
         mc:Ignorable="d"
-        Title="GIS开发实验" Height="450" Width="800">
+        Title="GIS开发实验" Height="450" Width="800"
+        MouseLeftButtonDown="LayerListBox_OnPreviewMouseLeftButtonDown">
     <Window.Resources>
         <local:MapViewModel x:Key="MapViewModel" />
     </Window.Resources>
@@ -30,37 +31,111 @@
                 <MenuItem x:Name="Menu_Click_Indentify" Header="点击查询" Click="Menu_Click_Indentify_OnClick"></MenuItem>
                 <MenuItem x:Name="Menu_Identify_Indentify" Header="Indentify查询" Click="Menu_Identify_Indentify_OnClick"></MenuItem>
             </MenuItem>
-            <MenuItem x:Name="Menu_Symbology" Header="符号系统">
+            <MenuItem x:Name="Menu_Symbology" Header="符号设计">
                 <MenuItem x:Name="Menu_Point_Add_Layer" Header="添加图层" Click="Menu_OpenShp_Click"></MenuItem>
                 <MenuItem x:Name="Menu_Point_Draw_Point" Header="画点" Click="Menu_Point_Symbol_Click"></MenuItem>
                 <MenuItem x:Name="Menu_Point_Draw_Line" Header="画线" Click="Menu_Point_Draw_Line_OnClick"></MenuItem>
                 <MenuItem x:Name="Menu_Point_Draw_Polygon" Header="画面" Click="Menu_Point_Draw_Polygon_OnClick"></MenuItem>
                 <MenuItem x:Name="Menu_Layers_Options" Header="符号系统" Click="Menu_Layers_Options_OnClick"></MenuItem>
             </MenuItem>
+            <MenuItem x:Name="Menu_Thematic_Map" Header="专题地图">
+                <MenuItem x:Name="Menu_Simple_Color" Header="简单着色" Click="Menu_Simple_Color_OnClick"></MenuItem>
+                <MenuItem x:Name="Menu_Unique_Color" Header="唯一值着色" Click="Menu_Unique_Color_OnClick"></MenuItem>
+                <MenuItem x:Name="Menu_Level_Color" Header="分级着色" Click="Menu_Level_Color_OnClick"></MenuItem>
+            </MenuItem>
+            <MenuItem x:Name="Menu_Spatial_Analyst" Header="空间分析">
+                <MenuItem x:Name="Menu_Clip" Header="裁剪" Click="Menu_Clip_OnClick"></MenuItem>
+                <MenuItem x:Name="Menu_Cut" Header="剪切" Click="Menu_Cut_OnClick"></MenuItem>
+                <MenuItem x:Name="Menu_Union" Header="联合" Click="Menu_Union_OnClick"></MenuItem>
+                <MenuItem x:Name="Menu_Intersect" Header="求交" Click="Menu_Intersect_OnClick"></MenuItem>
+                <Separator></Separator>
+                <MenuItem x:Name="Menu_Topology" Header="拓扑纠正" Click="Menu_Topology_OnClick"></MenuItem>
+                <MenuItem x:Name="Menu_Simplify" Header="简化" Click="Menu_Simplify_OnClick"></MenuItem>
+                <MenuItem x:Name="Menu_Buffer" Header="缓冲" Click="Menu_Buffer_OnClick"></MenuItem>
+                <MenuItem x:Name="Menu_Intersection_Point" Header="求交点" Click="Menu_Intersection_Point_OnClick"></MenuItem>
+            </MenuItem>
         </Menu>
-        <esri:MapView x:Name="MainMapView" Map="{Binding Map, Source={StaticResource MapViewModel}}" Margin="0,19,0,0" ViewpointChanged="MainMapView_OnViewpointChanged" GeoViewTapped="MainMapView_OnGeoViewTapped" MouseLeftButtonDown="MainMapView_OnMouseLeftButtonDown" MouseRightButtonDown="MainMapView_OnMouseRightButtonDown"/>
+        <esri:MapView x:Name="MainMapView" Map="{Binding Map, Source={StaticResource MapViewModel}}" Margin="0,19,0,0"
-        <ListBox x:Name="LayerListBox" Width="143" SelectedIndex="0" RenderTransformOrigin="0.451,1.105" Margin="0,37,0,13" HorizontalAlignment="Left" PreviewMouseMove="LayerListBox_OnPreviewMouseMove" Drop="LayerListBox_OnDrop" ItemStringFormat="删除">
+                      ViewpointChanged="MainMapView_OnViewpointChanged" GeoViewTapped="MainMapView_OnGeoViewTapped"
-            <ListBox.ContextMenu>
+                      MouseLeftButtonDown="MainMapView_OnMouseLeftButtonDown"
-                <ContextMenu/>
+                      MouseRightButtonDown="MainMapView_OnMouseRightButtonDown" />
-            </ListBox.ContextMenu>
+        <ListBox x:Name="LayerListBox" Width="143" SelectedIndex="0" RenderTransformOrigin="0.451,1.105"
+                 Margin="0,56,0,13" HorizontalAlignment="Left" PreviewMouseMove="LayerListBox_OnPreviewMouseMove"
+                 Drop="LayerListBox_OnDrop" PreviewMouseRightButtonDown="LayerListBox_OnPreviewMouseRightButtonDown"
+                 PreviewMouseLeftButtonDown="LayerListBox_OnPreviewMouseLeftButtonDown">
+            <!-- <ListBox.ContextMenu> -->
+            <!--     <ContextMenu> -->
+            <!--         <MenuItem Header="删除" x:Name="Context_Menu_Delete" Click="Context_Menu_Delete_OnClick"/> -->
+            <!--         <MenuItem Header="缩放至图层" x:Name="Context_Menu_Fit" Click="Context_Menu_Fit_OnClick"/> -->
+            <!--         <MenuItem Header="图层符号化" x:Name="Context_Menu_Symbology" Click="Context_Menu_Symbology_OnClick"/> -->
+            <!--     </ContextMenu> -->
+            <!-- </ListBox.ContextMenu> -->
         </ListBox>
-        <Border BorderBrush="#FF8B1D76" BorderThickness="2,2,2,2" HorizontalAlignment="Right" Height="180" Width="202" VerticalAlignment="Top" IsEnabled="False">
+        <Popup x:Name="Layer_Popup" Placement="MousePoint" StaysOpen="True">
+            <Border Background="White" BorderBrush="Gray" BorderThickness="0.5">
+                <StackPanel>
+                    <MenuItem Header="删除" x:Name="Context_Menu_Delete" Click="Context_Menu_Delete_OnClick" />
+                    <MenuItem Header="缩放至图层" x:Name="Context_Menu_Fit" Click="Context_Menu_Fit_OnClick" />
+                    <MenuItem Header="图层符号化" x:Name="Context_Menu_Symbology" Click="Context_Menu_Symbology_OnClick" />
+                </StackPanel>
+            </Border>
+        </Popup>
+        <Border BorderBrush="#FF8B1D76" BorderThickness="2,2,2,2" HorizontalAlignment="Right" Height="180" Width="202"
+                VerticalAlignment="Top" IsEnabled="False">
             <esri:MapView x:Name="EagleMapView" />
         </Border>
-        <Border BorderBrush="#000000" BorderThickness="1" HorizontalAlignment="Right" Height="24" Width="202" VerticalAlignment="Top" IsEnabled="True" Margin="580,210,0,0" Background="{DynamicResource {x:Static SystemColors.ControlBrushKey}}">
+        <Border BorderBrush="#000000" BorderThickness="1" HorizontalAlignment="Right" Height="24" Width="202"
-            <ComboBox x:Name="BasemapChooser" HorizontalAlignment="Left" Height="24" Margin="9,-1,0,-1" VerticalAlignment="Top" Width="182" SelectionChanged="BasemapChooser_OnSelectionChanged" IsEnabled="True"/>
+                VerticalAlignment="Top" IsEnabled="True" Margin="580,210,0,0"
+                Background="{DynamicResource {x:Static SystemColors.ControlBrushKey}}">
+            <ComboBox x:Name="BasemapChooser" HorizontalAlignment="Left" Height="24" Margin="9,-1,0,-1"
+                      VerticalAlignment="Top" Width="182" SelectionChanged="BasemapChooser_OnSelectionChanged"
+                      IsEnabled="True" />
         </Border>
-        <!-- <ToolBar HorizontalAlignment="Left" Height="29" Margin="0,20,0,0" VerticalAlignment="Top" Width="361"> -->
+        <Grid Margin="0,18,0,350" Background="White">
-        <!--     <Button x:Name="Btn_Add_Shp" Height="32" Width="32" Click="Menu_OpenShp_Click"> -->
+            <Button x:Name="BtnDraw" Content="开始绘制" HorizontalAlignment="Left" Height="26"
-        <!--         <Button.Background> -->
+                    Margin="169,4,0,0" VerticalAlignment="Top" Width="68" Click="BtnDraw_Click" IsEnabled="False" />
-        <!--             <ImageBrush ImageSource="D:\01_Development\10_Visual_Studio_Project\GisDevelop\GisDevelop_Exp\GisDevelop_Exp\add.png"/> -->
+            <Label Content="类型" HorizontalAlignment="Left" Margin="51,4,0,0"
-        <!--         </Button.Background> -->
+                   VerticalAlignment="Top" RenderTransformOrigin="1.618,0.654" />
-        <!--     </Button> -->
+            <ComboBox x:Name="SketchModeComboBox" HorizontalAlignment="Left" Margin="90,4,0,0"
-        <!--     <Button x:Name="Btn_Add_Online" Height="32" Width="32" Click="Btn_Add_Online_OnClick"> -->
+                      VerticalAlignment="Top" Width="62" IsEnabled="False" />
-        <!--         <Button.Background> -->
+            <Button x:Name="BtnEdit" Content="编辑 " HorizontalAlignment="Left" Height="26"
-        <!--             <ImageBrush ImageSource="D:\01_Development\10_Visual_Studio_Project\GisDevelop\GisDevelop_Exp\GisDevelop_Exp\online.png"/> -->
+                    Margin="257,4,0,0" VerticalAlignment="Top" Width="68" IsEnabled="False" Click="BtnEdit_Click" />
-        <!--         </Button.Background> -->
+            <Button x:Name="BtnUndo" Content="撤销 " HorizontalAlignment="Left" Height="26"
-        <!--     </Button> -->
+                    Margin="349,4,0,0" VerticalAlignment="Top" Width="68" Command="{Binding UndoCommand}"
-        <!-- </ToolBar> -->
+                    IsEnabled="False" />
+            <Button x:Name="BtnRedo" Content="恢复" HorizontalAlignment="Left" Height="26"
+                    Margin="440,4,0,0" VerticalAlignment="Top" Width="68" Command="{Binding RedoCommand}"
+                    IsEnabled="False" />
+            <Button x:Name="BtnComplete" Content="完成" HorizontalAlignment="Left" Height="26"
+                    Margin="525,4,0,0" VerticalAlignment="Top" Width="68" RenderTransformOrigin="1.412,0.308"
+                    Command="{Binding CompleteCommand}" IsEnabled="False" />
+            <Button x:Name="BtnCancel" Content="取消" HorizontalAlignment="Left" Height="26"
+                    Margin="610,4,0,0" VerticalAlignment="Top" Width="68" RenderTransformOrigin="1.412,0.308"
+                    Command="{Binding CancelCommand}" IsEnabled="False" />
+            <Button x:Name="BtnClear" Content="清空" HorizontalAlignment="Left" Height="26"
+                    Margin="695,4,0,0" VerticalAlignment="Top" Width="68" RenderTransformOrigin="1.412,0.308"
+                    IsEnabled="False" Click="BtnClear_Click" />
+            <CheckBox x:Name="CBEditBegin" Content="开始" HorizontalAlignment="Left"
+                      Margin="5,9,0,0" VerticalAlignment="Top" RenderTransformOrigin="1.073,1.812"
+                      Checked="CBEditBegin_Checked" />
+        </Grid>
+        <Border HorizontalAlignment="Right" VerticalAlignment="Bottom">
+            <ToolBar HorizontalAlignment="Left" Height="32" VerticalAlignment="Top" Width="150" Margin="0,0,10,10"
+                     x:Name="MovableToolbar">
+                <Button x:Name="Btn_Add_Shp" Height="32" Width="32" Click="Menu_OpenShp_Click">
+                    <Button.Background>
+                        <ImageBrush
+                            ImageSource="D:\01_Development\10_Visual_Studio_Project\GisDevelop\GisDevelop_Exp\GisDevelop_Exp\add.png" />
+                    </Button.Background>
+                </Button>
+                <Button x:Name="Btn_Add_Online" Height="32" Width="32" Click="Btn_Add_Online_OnClick">
+                    <Button.Background>
+                        <ImageBrush
+                            ImageSource="D:\01_Development\10_Visual_Studio_Project\GisDevelop\GisDevelop_Exp\GisDevelop_Exp\online.png" />
+                    </Button.Background>
+                </Button>
+            </ToolBar>
+        </Border>
+
     </Grid>
 </Window>

GisDevelop_Exp/MainWindow.xaml.cs

@@ -7,6 +7,7 @@ using System.Text;
 using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Controls;
+using System.Windows.Controls.Primitives;
 using System.Windows.Data;
 using System.Windows.Documents;
 using System.Windows.Input;
@@ -35,6 +36,15 @@ enum CURRENTOPERATION
     DrawPoint,
     DrawLine,
     DrawPolygon,
+    Cal_Clip,
+    Cal_Cut,
+    Cal_Union,
+    Cal_IntersectPoint,
+    Cal_Simplify,
+    Cal_Intersect,
+    Cal_Intersection,
+    Cal_Gene,
+    Cal_Buff
 }
 
 namespace GisDevelop_Exp
@@ -59,6 +69,15 @@ namespace GisDevelop_Exp
         private SimpleFillSymbol fillSymbol;
         private SimpleLineSymbol outlineSymbol;
 
+        private Symbol pSymbol;
+        private ListBoxItem cur_LayerItem;
+
+        private GraphicsOverlay _pGraphicsOverLay;
+
+        private Point _startPoint;
+
+        private List<Graphic> listOfClipGraphics; //几何操作时选择的图形
+
         private readonly Dictionary<string, Basemap> _basemapOptions = new Dictionary<string, Basemap>()
         {
             { "Streets (Raster)", new Basemap(BasemapStyle.OSMStreets) },
@@ -76,13 +95,23 @@ namespace GisDevelop_Exp
 
         private CURRENTOPERATION m_CurOper;
 
+        List<System.Drawing.Color> ColorArray = new List<Color>
+        {
+            Color.AliceBlue, Color.AntiqueWhite, Color.Aqua, Color.Aquamarine, Color.Azure,
+            Color.Beige, Color.Bisque, Color.Black, Color.BlanchedAlmond, Color.Blue, Color.Brown,
+            Color.BurlyWood, Color.CadetBlue, Color.Chocolate, Color.Coral, Color.CornflowerBlue,
+            Color.Cornsilk, Color.Crimson, Color.Cyan, Color.FloralWhite, Color.Green, Color.GreenYellow,
+            Color.HotPink, Color.LawnGreen, Color.Magenta
+        };
+
         public MainWindow()
         {
             InitializeComponent();
 
             pointSymbol = new SimpleMarkerSymbol(SimpleMarkerSymbolStyle.Circle, System.Drawing.Color.Blue, 3);
             lineSymbol = new SimpleLineSymbol(SimpleLineSymbolStyle.Solid, System.Drawing.Color.Blue, 1);
-            fillSymbol = new SimpleFillSymbol(SimpleFillSymbolStyle.Solid, System.Drawing.Color.Blue,new SimpleLineSymbol(SimpleLineSymbolStyle.Solid,System.Drawing.Color.Pink,1));
+            fillSymbol = new SimpleFillSymbol(SimpleFillSymbolStyle.Solid, System.Drawing.Color.Blue,
+                new SimpleLineSymbol(SimpleLineSymbolStyle.Solid, System.Drawing.Color.Pink, 1));
             outlineSymbol = new SimpleLineSymbol(SimpleLineSymbolStyle.Solid, System.Drawing.Color.Blue, 1);
 
             linePoints = new List<MapPoint>();
@@ -93,6 +122,7 @@ namespace GisDevelop_Exp
             EagleMapView.Map = new Map(BasemapStyle.ArcGISImageryStandard);
             GraphicsOverlay graphicLayer = new GraphicsOverlay();
             MainMapView.GraphicsOverlays.Add(graphicLayer);
+            listOfClipGraphics = new List<Graphic>();
         }
 
         private void Initialize()
@@ -134,6 +164,7 @@ namespace GisDevelop_Exp
                     await MainMapView.SetViewpointGeometryAsync(openedFeature.Extent);
                 }
             }
+
             AddLayerNameToList();
         }
 
@@ -169,6 +200,7 @@ namespace GisDevelop_Exp
                 MainMapView.Map.InitialViewpoint = geodatabaseViewPoint;
                 // MainMapView.Map = geodatabaseMap;
             }
+
             AddLayerNameToList();
         }
 
@@ -331,7 +363,7 @@ namespace GisDevelop_Exp
             AddLayerNameToList();
         }
 
-        private void MainMapView_OnGeoViewTapped(object? sender, GeoViewInputEventArgs e)
+        private async void MainMapView_OnGeoViewTapped(object? sender, GeoViewInputEventArgs e)
         {
             MainMapView.DismissCallout();
             if (m_CurOper == CURRENTOPERATION.NullOpe)
@@ -354,7 +386,8 @@ namespace GisDevelop_Exp
                         FunClickQuery(e.Location, _featureLayer);
                     }
                 }
-            }else if (m_CurOper == CURRENTOPERATION.IdentifyQuery)
+            }
+            else if (m_CurOper == CURRENTOPERATION.IdentifyQuery)
             {
                 if (MainMapView.Map.OperationalLayers.Count > 0)
                 {
@@ -365,6 +398,249 @@ namespace GisDevelop_Exp
                     }
                 }
             }
+            else if (m_CurOper == CURRENTOPERATION.Cal_Buff)
+            {
+                IdentifyGraphicsOverlayResult gResult_Buff =
+                    await MainMapView.IdentifyGraphicsOverlayAsync(_pGraphicsOverLay, e.Position, 5, false);
+                if (gResult_Buff.Graphics.Count < 1)
+                {
+                    return;
+                }
+
+                Graphic selGraphic_Buff = gResult_Buff.Graphics.First();
+                selGraphic_Buff.IsSelected = true;
+                listOfClipGraphics.Add(selGraphic_Buff); //记录所选图形 
+                if (listOfClipGraphics.Count == 1) //图形数目为1时，进行缓冲计算
+                {
+                    Graphic g1 = listOfClipGraphics[0];
+                    Esri.ArcGISRuntime.Geometry.Geometry resultGeometry =
+                        GeometryEngine.Buffer(g1.Geometry, 500000.0); //执行缓冲操作
+                    if (resultGeometry != null) //处理结果
+                    {
+                        _pGraphicsOverLay.Graphics.Remove(g1); //从图形层中移除原图形
+                        Graphic clipedGraphic = new Graphic(resultGeometry, new
+                            SimpleFillSymbol(SimpleFillSymbolStyle.Solid, Color.FromArgb(125, 255, 250, 0), new
+                                SimpleLineSymbol(SimpleLineSymbolStyle.Solid, Color.FromArgb(0, 0, 0),
+                                    4.0))); //利用剪切结果构造新的图形 
+                        _pGraphicsOverLay.Graphics.Add(clipedGraphic);
+                        m_CurOper = CURRENTOPERATION.NullOpe;
+                    }
+
+                    listOfClipGraphics.Clear(); //清空图形选择集合 
+                    _pGraphicsOverLay.ClearSelection(); //清空图形层所选 
+                }
+            }
+            else if (m_CurOper == CURRENTOPERATION.Cal_Union)
+            {
+                Console.WriteLine("Inside the if condition");
+                IdentifyGraphicsOverlayResult gResultUnion = await
+                    MainMapView.IdentifyGraphicsOverlayAsync(_pGraphicsOverLay, e.Position, 5, false);
+                if (gResultUnion.Graphics.Count < 1)
+                {
+                    return;
+                }
+
+                Graphic selGraphicUnion = gResultUnion.Graphics.First(); //每次选中的Graphic取出来，放
+                selGraphicUnion.IsSelected = true;
+                listOfClipGraphics.Add(selGraphicUnion); //记录所选图形 
+                if (listOfClipGraphics.Count == 2) //图形数目为2时，进行剪切计算 
+                {
+                    Graphic g1 = listOfClipGraphics[0];
+                    Graphic g2 = listOfClipGraphics[1];
+                    if (g1.Geometry.GeometryType != GeometryType.Polygon ||
+                        g2.Geometry.GeometryType != GeometryType.Polygon) //如果所选图形不是多边形，则退出 
+                    {
+                        MessageBox.Show("请选择两个多边形图形！");
+                        listOfClipGraphics.Clear();
+                        _pGraphicsOverLay.ClearSelection();
+                        return;
+                    }
+                    
+                    Esri.ArcGISRuntime.Geometry.Geometry resultGeometry =
+                        GeometryEngine.Union(g1.Geometry, g2.Geometry); //执行联合操作
+                    if (resultGeometry != null) //处理结果 
+                    {
+                        _pGraphicsOverLay.Graphics.Remove(g1); //从图形层中移除原图形 
+                        _pGraphicsOverLay.Graphics.Remove(g2);
+                        Graphic clipedGraphic = new Graphic(resultGeometry, fillSymbol); //利用联合结果构建新的图形 
+                        _pGraphicsOverLay.Graphics.Add(clipedGraphic);
+                        m_CurOper = CURRENTOPERATION.NullOpe;
+                    }
+
+                    listOfClipGraphics.Clear(); //清空图形选择集合 
+                    _pGraphicsOverLay.ClearSelection(); //清空图形层所选 
+                }
+            }
+            else if (m_CurOper == CURRENTOPERATION.Cal_Cut)
+            {
+                IdentifyGraphicsOverlayResult gResult_Cut = await
+                    MainMapView.IdentifyGraphicsOverlayAsync(_pGraphicsOverLay, e.Position, 5, false);
+                if (gResult_Cut.Graphics.Count < 1)
+                {
+                    return;
+                }
+
+                Graphic selGraphic_Cut = gResult_Cut.Graphics.First();
+                selGraphic_Cut.IsSelected = true;
+                listOfClipGraphics.Add(selGraphic_Cut); //记录所选图形 
+                if (listOfClipGraphics.Count == 2) //图形数目为1时，进行剪切计算 
+                {
+                    Graphic g1 = listOfClipGraphics[0];
+                    Graphic g2 = listOfClipGraphics[1];
+                    
+                    if (g1.Geometry.GeometryType != GeometryType.Polygon ||
+                        g2.Geometry.GeometryType != GeometryType.Polyline) //如果所选图形不是多边形，则退出 
+                    {
+                        MessageBox.Show("请先选择一个面要素后再选择一个线要素.");
+                        listOfClipGraphics.Clear();
+                        _pGraphicsOverLay.ClearSelection();
+                        return;
+                    }
+
+                    Esri.ArcGISRuntime.Geometry.Polyline polyLine =
+                        (Esri.ArcGISRuntime.Geometry.Polyline)g2.Geometry;
+                    Esri.ArcGISRuntime.Geometry.Geometry[] resultGeometry =
+                        GeometryEngine.Cut(g1.Geometry, polyLine); //执行剪切操作 
+                    if (resultGeometry != null) //处理结果 
+                    {
+                        _pGraphicsOverLay.Graphics.Remove(g1);
+                        _pGraphicsOverLay.Graphics.Remove(g2);
+                        
+                        for (int z = 0; z < resultGeometry.Length; z++)
+                        {
+                            Graphic clipedGraphic = new Graphic(resultGeometry[z],
+                                fillSymbol); //利 用剪切结果构建新的图形 
+                            _pGraphicsOverLay.Graphics.Add(clipedGraphic);
+                        }
+
+                        m_CurOper = CURRENTOPERATION.NullOpe;
+                    }
+
+                    listOfClipGraphics.Clear(); //清空图形选择集合 
+                    _pGraphicsOverLay.ClearSelection(); //清空图形层所选 
+                }
+            }else if (m_CurOper == CURRENTOPERATION.Cal_Intersection)
+            {
+                IdentifyGraphicsOverlayResult gResult_Intersect = await MainMapView.IdentifyGraphicsOverlayAsync(_pGraphicsOverLay, e.Position, 5, false);
+                if (gResult_Intersect.Graphics.Count < 1)
+                    return;
+                Graphic selGraphic_Intersect = gResult_Intersect.Graphics.First();
+                selGraphic_Intersect.IsSelected = true;
+                listOfClipGraphics.Add(selGraphic_Intersect); //记录所选图形                    
+                if (listOfClipGraphics.Count == 2) //图形数目为2时，进行求交计算 
+                {
+                    Graphic g1 = listOfClipGraphics[0];
+                    Graphic g2 = listOfClipGraphics[1];
+
+                    IReadOnlyList<Geometry> resultGeometry = GeometryEngine.Intersections(g1.Geometry, g2.Geometry); //执行求交点操作 
+                    // Geometry resultGeometry = GeometryEngine.Intersection(g1.Geometry, g2.Geometry); //执行求交操作  
+                    if (resultGeometry != null) //处理结果 
+                    {
+                        _pGraphicsOverLay.Graphics.Remove(g1);
+                        _pGraphicsOverLay.Graphics.Remove(g2);
+                        
+                        foreach (var pointGeometry in resultGeometry)
+                        {
+                            Graphic clipedGraphic = new Graphic(pointGeometry, pointSymbol); //利用求交结果构建新的图形 
+                            _pGraphicsOverLay.Graphics.Add(clipedGraphic);
+                        }
+                        m_CurOper = CURRENTOPERATION.NullOpe;
+                    }
+                    listOfClipGraphics.Clear();//清空图形选择集合 
+                    _pGraphicsOverLay.ClearSelection();//清空图形层所选
+                }
+            }else if (m_CurOper == CURRENTOPERATION.Cal_Intersect)
+            {
+                IdentifyGraphicsOverlayResult gResult_Intersect = await MainMapView.IdentifyGraphicsOverlayAsync(_pGraphicsOverLay, e.Position, 5, false);
+                if (gResult_Intersect.Graphics.Count < 1)
+                    return;
+                Graphic selGraphic_Intersect = gResult_Intersect.Graphics.First();
+                selGraphic_Intersect.IsSelected = true;
+                listOfClipGraphics.Add(selGraphic_Intersect); //记录所选图形                    
+                if (listOfClipGraphics.Count == 2) //图形数目为2时，进行求交计算 
+                {
+                    Graphic g1 = listOfClipGraphics[0];
+                    Graphic g2 = listOfClipGraphics[1];
+
+                    // IReadOnlyList<Geometry> resultGeometry = GeometryEngine.Intersections(g1.Geometry, g2.Geometry); //执行求交点操作 
+                    Geometry resultGeometry = GeometryEngine.Intersection(g1.Geometry, g2.Geometry); //执行求交操作  
+                    if (resultGeometry != null) //处理结果 
+                    {
+                        _pGraphicsOverLay.Graphics.Remove(g1);
+                        _pGraphicsOverLay.Graphics.Remove(g2);
+                        
+                        Graphic clipedGraphic = new Graphic(resultGeometry, pointSymbol); //利用求交结果构建新的图形 
+                        _pGraphicsOverLay.Graphics.Add(clipedGraphic);
+                        m_CurOper = CURRENTOPERATION.NullOpe;
+                    }
+                    listOfClipGraphics.Clear();//清空图形选择集合 
+                    _pGraphicsOverLay.ClearSelection();//清空图形层所选
+                }
+            }else if (m_CurOper == CURRENTOPERATION.Cal_Clip)
+            {
+                IdentifyGraphicsOverlayResult gResult_Intersect = await MainMapView.IdentifyGraphicsOverlayAsync(_pGraphicsOverLay, e.Position, 5, false);
+                if (gResult_Intersect.Graphics.Count < 1)
+                    return;
+                Graphic selGraphic_Intersect = gResult_Intersect.Graphics.First();
+                selGraphic_Intersect.IsSelected = true;
+                listOfClipGraphics.Add(selGraphic_Intersect); //记录所选图形                    
+                if (listOfClipGraphics.Count == 2) //图形数目为2时，进行求交计算 
+                {
+                    Graphic g1 = listOfClipGraphics[0];
+                    Graphic g2 = listOfClipGraphics[1];
+                    
+                    Geometry resultGeometry = GeometryEngine.Clip(g1.Geometry, g2.Geometry.Extent); //执行求交操作  
+                    if (resultGeometry != null) //处理结果 
+                    {
+                        _pGraphicsOverLay.Graphics.Remove(g1);
+                        _pGraphicsOverLay.Graphics.Remove(g2);
+                        
+                        Graphic clipedGraphic = new Graphic(resultGeometry, fillSymbol); //利用求交结果构建新的图形 
+                        _pGraphicsOverLay.Graphics.Add(clipedGraphic);
+                        m_CurOper = CURRENTOPERATION.NullOpe;
+                    }
+                    listOfClipGraphics.Clear();//清空图形选择集合 
+                    _pGraphicsOverLay.ClearSelection();//清空图形层所选
+                }
+            }else if (m_CurOper == CURRENTOPERATION.Cal_Simplify)
+            {
+                IdentifyGraphicsOverlayResult gResult_Buff =
+                    await MainMapView.IdentifyGraphicsOverlayAsync(_pGraphicsOverLay, e.Position, 5, false);
+                if (gResult_Buff.Graphics.Count < 1)
+                {
+                    return;
+                }
+
+                Graphic selGraphic_Buff = gResult_Buff.Graphics.First();
+                selGraphic_Buff.IsSelected = true;
+                listOfClipGraphics.Add(selGraphic_Buff); //记录所选图形 
+                if (listOfClipGraphics.Count == 1) //图形数目为1时，进行缓冲计算
+                {
+                    Graphic g1 = listOfClipGraphics[0];
+                    Esri.ArcGISRuntime.Geometry.Geometry resultGeometry =
+                        GeometryEngine.Simplify(g1.Geometry); //执行缓冲操作
+                    if (resultGeometry != null) //处理结果
+                    {
+                        _pGraphicsOverLay.Graphics.Remove(g1); //从图形层中移除原图形
+                        if(resultGeometry.GeometryType == GeometryType.Point || resultGeometry.GeometryType == GeometryType.Multipoint){
+                            Graphic simplifiedGraphic = new Graphic(resultGeometry, pointSymbol); //利用剪切结果构造新的图形 
+                            _pGraphicsOverLay.Graphics.Add(simplifiedGraphic);
+                        }else if (resultGeometry.GeometryType == GeometryType.Polyline)
+                        {
+                            Graphic simplifiedGraphic = new Graphic(resultGeometry, lineSymbol); //利用剪切结果构造新的图形 
+                            _pGraphicsOverLay.Graphics.Add(simplifiedGraphic);
+                        }else if (resultGeometry.GeometryType == GeometryType.Polygon)
+                        {
+                            Graphic simplifiedGraphic = new Graphic(resultGeometry, fillSymbol); //利用剪切结果构造新的图形 
+                            _pGraphicsOverLay.Graphics.Add(simplifiedGraphic);
+                        }
+                        m_CurOper = CURRENTOPERATION.NullOpe;
+                    }
+
+                    listOfClipGraphics.Clear(); //清空图形选择集合 
+                    _pGraphicsOverLay.ClearSelection(); //清空图形层所选 
+                }
+            }
         }
 
         private void Menu_Simple_Identify_OnClick(object sender, RoutedEventArgs e)
@@ -425,11 +701,13 @@ namespace GisDevelop_Exp
             {
                 return;
             }
+
             EnvelopeBuilder pEnvBuilder = new EnvelopeBuilder(_featureLayer.SpatialReference);
             for (int i = 0; i < pListFeatures.Count; i++)
             {
                 pEnvBuilder.UnionOf(pListFeatures[i].Geometry.Extent);
             }
+
             await MainMapView.SetViewpointGeometryAsync(pEnvBuilder.ToGeometry(), 50);
             Feature pFeature;
             string sInfo = "";
@@ -447,6 +725,7 @@ namespace GisDevelop_Exp
                     obj = FeatureAttri.Values.ElementAt(j);
                     sInfo += str + ":" + obj.ToString() + "\r\n";
                 }
+
                 MessageBox.Show(sInfo);
             }
         }
@@ -458,6 +737,7 @@ namespace GisDevelop_Exp
             {
                 return;
             }
+
             Feature identifyFeature = (Feature)identifyLayerResult.GeoElements.First();
             IDictionary<string, object> FeatureAttri = identifyFeature.Attributes;
             string str;
@@ -469,6 +749,7 @@ namespace GisDevelop_Exp
                 obj = FeatureAttri.Values.ElementAt(i);
                 tempStr += str + ":" + obj.ToString() + "\r\n";
             }
+
             System.Windows.MessageBox.Show(tempStr);
         }
 
@@ -510,6 +791,7 @@ namespace GisDevelop_Exp
                 aMap.InitialViewpoint = geodatabaseViewPoint;
                 MainMapView.Map = aMap;
             }
+
             AddLayerNameToList();
         }
 
@@ -625,6 +907,7 @@ namespace GisDevelop_Exp
                         return obj as T;
                     obj = System.Windows.Media.VisualTreeHelper.GetParent(obj);
                 }
+
                 return null;
             }
         }
@@ -692,6 +975,7 @@ namespace GisDevelop_Exp
                         MainMapView.GraphicsOverlays[0].Graphics.Remove(curGraphic);
                         linesList.Remove(curGraphic);
                     }
+
                     Polyline line = new Polyline(linePoints);
                     Graphic lineGraphic = new Graphic(line, lineSymbol);
                     MainMapView.GraphicsOverlays[0].Graphics.Add(lineGraphic);
@@ -709,6 +993,7 @@ namespace GisDevelop_Exp
                         MainMapView.GraphicsOverlays[0].Graphics.Remove(curGraphic);
                         linesList.Remove(curGraphic);
                     }
+
                     Polygon polygon = new Polygon(linePoints);
                     Graphic polygonGraphic = new Graphic(polygon, fillSymbol);
                     MainMapView.GraphicsOverlays[0].Graphics.Add(polygonGraphic);
@@ -748,5 +1033,484 @@ namespace GisDevelop_Exp
         {
             m_CurOper = CURRENTOPERATION.NullOpe;
         }
+
+        private void SetSimpleRender(FeatureLayer pLayer, Symbol pSymbol)
+        {
+            if (pSymbol == null)
+            {
+                pSymbol = this.pSymbol;
+            }
+
+            Random r = new Random();
+            int num = r.Next(0, 20);
+            Color pColor = ColorArray[num];
+            OptionsWindow op = new OptionsWindow();
+            if (pSymbol == null)
+            {
+                if (pLayer.FeatureTable.GeometryType == GeometryType.Point ||
+                    pLayer.FeatureTable.GeometryType == GeometryType.Multipoint)
+                {
+                    pSymbol = new SimpleMarkerSymbol(SimpleMarkerSymbolStyle.Circle, pColor, 5);
+                    op.PointSymbol = (SimpleMarkerSymbol)pSymbol;
+                }
+                else if (pLayer.FeatureTable.GeometryType == GeometryType.Polyline)
+                {
+                    pSymbol = new SimpleLineSymbol(SimpleLineSymbolStyle.Solid, pColor, 1);
+                    op.LineSymbol = (SimpleLineSymbol)pSymbol;
+                }
+                else if (pLayer.FeatureTable.GeometryType == GeometryType.Polygon)
+                {
+                    SimpleLineSymbol pOutlineSymbol = new SimpleLineSymbol(SimpleLineSymbolStyle.Solid, Color.Gray, 1);
+                    pSymbol = new SimpleFillSymbol(SimpleFillSymbolStyle.Solid, pColor, pOutlineSymbol);
+                    op.FillSymbol = (SimpleFillSymbol)pSymbol;
+                }
+            }
+            else
+            {
+                if (pLayer.FeatureTable.GeometryType == GeometryType.Point ||
+                    pLayer.FeatureTable.GeometryType == GeometryType.Multipoint)
+                {
+                    op.PointSymbol = (SimpleMarkerSymbol)pSymbol;
+                }
+                else if (pLayer.FeatureTable.GeometryType == GeometryType.Polyline)
+                {
+                    op.LineSymbol = (SimpleLineSymbol)pSymbol;
+                }
+                else if (pLayer.FeatureTable.GeometryType == GeometryType.Polygon)
+                {
+                    op.FillSymbol = (SimpleFillSymbol)pSymbol;
+                }
+            }
+
+            SimpleRenderer sRenderer = new SimpleRenderer(pSymbol);
+            pLayer.Renderer = sRenderer;
+            op.GeometryType = pLayer.FeatureTable.GeometryType;
+            op.ShowDialog();
+        }
+
+        private void Menu_Simple_Color_OnClick(object sender, RoutedEventArgs e)
+        {
+            FeatureLayer _featureLayer = MainMapView.Map.OperationalLayers[0] as FeatureLayer;
+            SetSimpleRender(_featureLayer, pSymbol);
+        }
+
+        private async void SetUniqueRender(FeatureLayer pLayer, string sFieldName, List<Symbol> pSymbolList = null)
+        {
+            UniqueValueRenderer regionRenderer = new UniqueValueRenderer();
+            regionRenderer.FieldNames.Add(sFieldName);
+            QueryParameters pQueryPara = new QueryParameters();
+            pQueryPara.WhereClause = "1=1";
+            FeatureQueryResult queryResult = await pLayer.FeatureTable.QueryFeaturesAsync(pQueryPara);
+            IEnumerator<Feature> queryFeatures = queryResult.GetEnumerator();
+            object featureValue;
+            int i = 0;
+            while (queryFeatures.MoveNext())
+            {
+                featureValue = queryFeatures.Current.GetAttributeValue(sFieldName);
+                Symbol tempSymbol = null;
+                if (pSymbolList == null)
+                {
+                    if (i >= ColorArray.Count)
+                        i = 0;
+                    Color pColor = ColorArray[i];
+                    if (pLayer.FeatureTable.GeometryType == GeometryType.Point ||
+                        pLayer.FeatureTable.GeometryType == GeometryType.Multipoint)
+                    {
+                        tempSymbol = new SimpleMarkerSymbol(SimpleMarkerSymbolStyle.Circle, pColor, 5);
+                    }
+                    else if (pLayer.FeatureTable.GeometryType == GeometryType.Polyline)
+                    {
+                        tempSymbol = new SimpleLineSymbol(SimpleLineSymbolStyle.Solid, pColor, 1);
+                    }
+                    else if (pLayer.FeatureTable.GeometryType == GeometryType.Polygon)
+                    {
+                        SimpleLineSymbol tempSymbol2 = new SimpleLineSymbol(SimpleLineSymbolStyle.Solid,
+                            Color.Gray, 1);
+                        tempSymbol = new SimpleFillSymbol(SimpleFillSymbolStyle.Solid, pColor, tempSymbol2);
+                    }
+                }
+                else
+                {
+                    tempSymbol = pSymbolList[i];
+                }
+
+                i++;
+                UniqueValue pUniqueValue = new UniqueValue("null", "null", tempSymbol, featureValue);
+                regionRenderer.UniqueValues.Add(pUniqueValue);
+            }
+
+            SimpleFillSymbol defaultFillSymbol = new SimpleFillSymbol(SimpleFillSymbolStyle.Cross, Color.Gray,
+                null);
+            regionRenderer.DefaultSymbol = defaultFillSymbol;
+            regionRenderer.DefaultLabel = "Other";
+            pLayer.Renderer = regionRenderer;
+        }
+
+        private void Menu_Unique_Color_OnClick(object sender, RoutedEventArgs e)
+        {
+            if (MainMapView.Map.OperationalLayers.Count > 0)
+            {
+                FeatureLayer _featureLayer = MainMapView.Map.OperationalLayers[0] as FeatureLayer;
+                string sQueryFieldName = "XZQMC";
+                SetUniqueRender(_featureLayer, sQueryFieldName);
+            }
+        }
+
+        private async void SetClassBreaksRender(FeatureLayer pLayer, string sFieldName, int ClassifyCount = 5,
+            List<Symbol> pSymbolList = null)
+        {
+            //ClassBreaksRenderer
+            ClassBreaksRenderer pCBRenderer = new ClassBreaksRenderer();
+            //设置字段名
+            pCBRenderer.FieldName = sFieldName;
+            //设置统计查询条件，
+            StatisticDefinition statDefinitionMin = new StatisticDefinition(sFieldName, StatisticType.Minimum, "");
+            StatisticDefinition statDefinitionMax = new StatisticDefinition(sFieldName, StatisticType.Maximum, "");
+            List<StatisticDefinition> statDefinitions = new List<StatisticDefinition>
+            {
+                statDefinitionMin,
+                statDefinitionMax,
+            };
+            StatisticsQueryParameters pQueryPara = new StatisticsQueryParameters(statDefinitions);
+            //执行统计查询
+            StatisticsQueryResult queryResult = await pLayer.FeatureTable.QueryStatisticsAsync(pQueryPara);
+            //从统计结果中获取最大值，获取最小值
+            string str;
+            object max = null, min = null;
+            double dMax, dMin;
+            //获取该字段的最大值，最小值，为后续分级做准备
+            IReadOnlyDictionary<string, object> sResult = queryResult.First().Statistics;
+            for (int i = 0; i < sResult.Count; i++)
+            {
+                str = sResult.Keys.ElementAt(i);
+                if (str.Contains("MAX"))
+                    max = sResult.Values.ElementAt(i);
+                if (str.Contains("MIN"))
+                    min = sResult.Values.ElementAt(i);
+            }
+
+            dMax = (double)(max);
+            dMin = (double)(min);
+            //计算并设置分级中每一级别的范围，以及符号
+            for (int i = 0; i < ClassifyCount; i++)
+            {
+                ClassBreak pClassBreak = new ClassBreak();
+                //每一级别范围的最大值、最小值
+                if (i == 0)
+                    pClassBreak.MinValue = dMin;
+                else
+                    pClassBreak.MinValue = dMin + (dMax - dMin) * (i - 1) / ClassifyCount;
+                ;
+                pClassBreak.MaxValue = dMin + (dMax - dMin) * (i + 1) / ClassifyCount;
+                Color tempColor = Color.FromArgb(i * 50 + 10, 255, 255);
+                //创建符号，这里图层为面层，直接创建面符号，注意若图层为 点层、线层，需创建对应的点符号、线符号
+                SimpleLineSymbol tempSymbol2 = new SimpleLineSymbol(SimpleLineSymbolStyle.Solid, Color.Gray,
+                    1);
+                Symbol pSymbol = new SimpleFillSymbol(SimpleFillSymbolStyle.Solid, tempColor, tempSymbol2);
+                pClassBreak.Symbol = pSymbol;
+                //将设置好的ClassBreak放入ClassBreaksRenderer中。
+                pCBRenderer.ClassBreaks.Add(pClassBreak);
+            }
+
+            //将创建好的ClassBreaksRenderer 赋值给图层
+            pLayer.Renderer = pCBRenderer;
+        }
+
+        private void Menu_Level_Color_OnClick(object sender, RoutedEventArgs e)
+        {
+            if (MainMapView.Map.OperationalLayers.Count > 0)
+            {
+                FeatureLayer _featureLayer = MainMapView.Map.OperationalLayers[0] as FeatureLayer;
+                string sQueryFieldName = "FID";
+                SetClassBreaksRender(_featureLayer, sQueryFieldName);
+            }
+        }
+
+        private void Context_Menu_Delete_OnClick(object sender, RoutedEventArgs e)
+        {
+            Layer_Popup.IsOpen = false;
+            LayerListBox.Items.Remove(cur_LayerItem);
+            LayerCollection pLayers = MainMapView.Map.OperationalLayers;
+            Layer delLayer = GetLayer(cur_LayerItem.ToolTip as string);
+            pLayers.Remove(delLayer);
+            e.Handled = true;
+        }
+
+        private void LayerListBox_OnPreviewMouseRightButtonDown(object sender, MouseButtonEventArgs e)
+        {
+            Layer_Popup.IsOpen = false;
+            var pos = e.GetPosition(LayerListBox);
+            System.Windows.Media.HitTestResult
+                result = System.Windows.Media.VisualTreeHelper.HitTest(LayerListBox, pos);
+            if (result == null)
+            {
+                Layer_Popup.IsOpen = false;
+                return;
+            }
+
+            var listBoxItem = Utils.FindVisualParent<ListBoxItem>(result.VisualHit);
+            if (listBoxItem == null)
+            {
+                Layer_Popup.IsOpen = false;
+                return;
+            }
+
+            cur_LayerItem = listBoxItem;
+            Layer_Popup.HorizontalOffset = pos.X;
+            Layer_Popup.VerticalOffset = pos.Y;
+            Layer_Popup.IsOpen = true;
+            e.Handled = true;
+        }
+
+        private void Context_Menu_Fit_OnClick(object sender, RoutedEventArgs e)
+        {
+            Layer_Popup.IsOpen = false;
+            Layer fitLayer = GetLayer(cur_LayerItem.ToolTip as string);
+            MainMapView.SetViewpointGeometryAsync(fitLayer.FullExtent);
+            e.Handled = true;
+        }
+
+
+        private void Context_Menu_Symbology_OnClick(object sender, RoutedEventArgs e)
+        {
+            Layer_Popup.IsOpen = false;
+            Layer symbologyLayer = GetLayer(cur_LayerItem.ToolTip as string);
+            FeatureLayer _featureLayer = (FeatureLayer)symbologyLayer;
+            if (_featureLayer != null && _featureLayer.Renderer is SimpleRenderer simpleRenderer)
+            {
+                var symbol = simpleRenderer.Symbol;
+                SetSimpleRender((FeatureLayer)symbologyLayer, symbol);
+            }
+            else
+            {
+                pSymbol = null;
+                SetSimpleRender((FeatureLayer)symbologyLayer, null);
+            }
+
+            e.Handled = true;
+        }
+
+        private void LayerListBox_OnPreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
+        {
+            var pos = e.GetPosition(Layer_Popup);
+            System.Windows.Media.HitTestResult
+                result = System.Windows.Media.VisualTreeHelper.HitTest(Layer_Popup, pos);
+            if (result == null)
+            {
+                Layer_Popup.IsOpen = false;
+                return;
+            }
+
+            var menuItem = Utils.FindVisualParent<MenuItem>(result.VisualHit);
+            if (menuItem == null)
+            {
+                Layer_Popup.IsOpen = false;
+                return;
+            }
+
+            // Layer_Popup.IsOpen = false;
+            e.Handled = false;
+        }
+
+        private void CBEditBegin_Checked(object sender, RoutedEventArgs e)
+        {
+            //设置部分按钮可以操作。
+            SketchModeComboBox.IsEnabled = true;
+            BtnDraw.IsEnabled = true;
+            // 获取_ pGraphicsOverLay ，用于放置图形元素
+            // Window w = Window.GetWindow(this);
+            // MyMapView = (MapView)w.FindName("MyMapView");
+            _pGraphicsOverLay = new GraphicsOverlay();
+            MainMapView.GraphicsOverlays.Add(_pGraphicsOverLay);
+            SketchModeComboBox.ItemsSource =
+                System.Enum.GetValues(typeof(SketchCreationMode));
+            SketchModeComboBox.SelectedIndex = 0;
+            //设置图形元素编辑的相关属性
+            SketchEditConfiguration config = MainMapView.SketchEditor.EditConfiguration;
+            if (config != null)
+            {
+                config.AllowVertexEditing = true;
+                config.ResizeMode = SketchResizeMode.Uniform;
+                config.AllowMove = true;
+            }
+
+            //设置 页面的DataContext为 SketchEditor
+            DataContext = MainMapView.SketchEditor;
+        }
+
+        private async void BtnDraw_Click(object sender, RoutedEventArgs e)
+        {
+            try
+            {
+                BtnCancel.IsEnabled = true;
+                BtnRedo.IsEnabled = true;
+                BtnUndo.IsEnabled = true;
+                BtnComplete.IsEnabled = true;
+                SketchCreationMode creationMode =
+                    (SketchCreationMode)SketchModeComboBox.SelectedItem;
+                Esri.ArcGISRuntime.Geometry.Geometry geometry = await
+                    MainMapView.SketchEditor.StartAsync(creationMode, true);
+                // Create and add a graphic from the geometry the user drew
+                // Graphic graphic = new Graphic (geometry);
+                Graphic graphic = CreateGraphic(geometry);
+                _pGraphicsOverLay.Graphics.Add(graphic);
+                BtnClear.IsEnabled = _pGraphicsOverLay.Graphics.Count > 0;
+                BtnEdit.IsEnabled = _pGraphicsOverLay.Graphics.Count > 0;
+            }
+            catch (TaskCanceledException) //当 点击 取消后，抛出代码运行异常 ，需要添加该行
+            {
+                // Ignore ... let the user cancel drawing
+            }
+            catch (Exception ex)
+            {
+                // Report exceptions
+                MessageBox.Show("Error drawing graphic shape: " + ex.Message);
+            }
+        }
+
+        private Graphic CreateGraphic(Esri.ArcGISRuntime.Geometry.Geometry geometry)
+        {
+            // Create a graphic to display the specified geometry 
+            //若不设置符号，图形元素不显示。
+            Symbol symbol = null;
+            switch (geometry.GeometryType)
+            {
+                // Symbolize with a fill symbol
+                case GeometryType.Envelope:
+                case GeometryType.Polygon:
+                {
+                    symbol = new SimpleFillSymbol()
+                    {
+                        Color = System.Drawing.Color.Red,
+                        Style = SimpleFillSymbolStyle.Solid
+                    };
+                    break;
+                }
+                // Symbolize with a line symbol
+                case GeometryType.Polyline:
+                {
+                    symbol = new SimpleLineSymbol()
+                    {
+                        Color = System.Drawing.Color.Red,
+                        Style = SimpleLineSymbolStyle.Solid,
+                        Width = 5d
+                    };
+                    break;
+                }
+                // Symbolize with a marker symbol
+                case GeometryType.Point:
+                case GeometryType.Multipoint:
+                {
+                    symbol = new SimpleMarkerSymbol()
+                    {
+                        Color = System.Drawing.Color.Red,
+                        Style = SimpleMarkerSymbolStyle.Circle,
+                        Size = 15d
+                    };
+                    break;
+                }
+            }
+
+            // pass back a new graphic with the appropriate symbol
+            return new Graphic(geometry, symbol);
+        }
+
+        private async void BtnEdit_Click(object sender, RoutedEventArgs e)
+        {
+            try
+            {
+                Graphic editGraphic = await GetGraphicAsync();
+                if (editGraphic == null)
+                {
+                    return;
+                }
+
+                // Let the user make changes to the graphic's geometry, await the result (updated geometry)
+                Esri.ArcGISRuntime.Geometry.Geometry newGeometry =
+                    await MainMapView.SketchEditor.StartAsync(editGraphic.Geometry);
+                // Display the updated geometry in the graphic
+                editGraphic.Geometry = newGeometry;
+            }
+            catch (TaskCanceledException) //当 点击 取消后，抛出代码运行异常 ，需要添加该行
+            {
+                // Ignore ... let the user cancel drawing
+            }
+            catch (Exception ex)
+            {
+                // Report exceptions
+                MessageBox.Show("Error drawing graphic shape: " + ex.Message);
+            }
+        }
+
+        private async Task<Graphic> GetGraphicAsync()
+        {
+            //鼠标点击，获取点坐标对象
+            Geometry pMapPoint = await
+                MainMapView.SketchEditor.StartAsync(SketchCreationMode.Point, false);
+            //将点对象由地图坐标转换为屏幕坐标
+            Point scrPoint = MainMapView.LocationToScreen((MapPoint)pMapPoint);
+            //利用Indendify识别该点选中的图形元素
+            IReadOnlyList<IdentifyGraphicsOverlayResult> results = await
+                MainMapView.IdentifyGraphicsOverlaysAsync(scrPoint, 2, false);
+            //获取选中的第一个元素
+            Graphic graphic = null;
+            IdentifyGraphicsOverlayResult idResult = results.FirstOrDefault();
+            if (idResult != null && idResult.Graphics.Count > 0)
+            {
+                graphic = idResult.Graphics.FirstOrDefault();
+            }
+
+            return graphic;
+        }
+
+
+        private void BtnClear_Click(object sender, RoutedEventArgs e)
+        {
+            _pGraphicsOverLay.Graphics.Clear();
+            BtnClear.IsEnabled = false;
+            BtnEdit.IsEnabled = false;
+        }
+
+        private void Menu_Buffer_OnClick(object sender, RoutedEventArgs e)
+        {
+            m_CurOper = CURRENTOPERATION.Cal_Buff;
+        }
+
+
+        private void Menu_Union_OnClick(object sender, RoutedEventArgs e)
+        {
+            m_CurOper = CURRENTOPERATION.Cal_Union;
+        }
+
+
+        private void Menu_Cut_OnClick(object sender, RoutedEventArgs e)
+        {
+            m_CurOper = CURRENTOPERATION.Cal_Cut;
+        }
+
+        private void Menu_Intersection_Point_OnClick(object sender, RoutedEventArgs e)
+        {
+            m_CurOper = CURRENTOPERATION.Cal_Intersection;
+        }
+
+        private void Menu_Intersect_OnClick(object sender, RoutedEventArgs e)
+        {
+            m_CurOper = CURRENTOPERATION.Cal_Intersect;
+        }
+
+        private void Menu_Simplify_OnClick(object sender, RoutedEventArgs e)
+        {
+            m_CurOper = CURRENTOPERATION.Cal_Simplify;
+        }
+
+        private void Menu_Clip_OnClick(object sender, RoutedEventArgs e)
+        {
+            m_CurOper = CURRENTOPERATION.Cal_Clip;
+        }
+
+        private void Menu_Topology_OnClick(object sender, RoutedEventArgs e)
+        {
+            MessageBox.Show("此功能暂未实现");
+        }
     }
 }

GisDevelop_Exp/OptionsWindow.xaml.cs

@@ -250,6 +250,10 @@ namespace GisDevelop_Exp
 
         private void FrameworkElement_OnLoaded(object sender, RoutedEventArgs e)
         {
+            if (GeometryType != GeometryType.Polyline)
+            {
+                return;
+            }
             System.Windows.Media.Color color = System.Windows.Media.Color.FromArgb(lineColor.A, lineColor.R, lineColor.G, lineColor.B);
             Label_Line_Color.Background = new SolidColorBrush(color);
             Slider_Line_Width.Value = Convert.ToInt32(lineSymbol.Width);