《ArcGIS Runtime SDK for .NET开发笔记》--在线编辑

最新推荐文章于 2025-04-16 16:37:39 发布

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最新推荐文章于 2025-04-16 16:37:39 发布

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文章标签： runtime

本文介绍了如何使用ArcGIS发布带有编辑功能的FeatureService，并详细展示了通过XAML代码实现地图上要素的在线编辑过程，包括增删改查等操作。

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介绍

ArcGIS可以发布具有编辑功能的Feature Service。利用Feature Service我们可以实现对数据的在线编辑。
数据制作参考：
https://server.arcgis.com/zh-cn/server/latest/get-started/windows/tutorial-set-up-feature-service-data-for-offline-use.htm

实现

1.主界面

其中OutFields控制着属性的编辑，*代表都可以写入，也可以只填写你需要编辑的属性字段。

    <Grid>
        <esri:MapView x:Name="MyMapView"> <esri:Map x:Name="MyMap"> <esri:ArcGISTiledMapServiceLayer x:Name="baseMap" ServiceUri="http://server.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer"/> <esri:FeatureLayer ID="Incidents"> <esri:ServiceFeatureTable ServiceUri="http://localhost:6080/arcgis/rest/services/sichuan/test1/FeatureServer/0" OutFields="*"/> <!-- ServiceFeatureTable 中的 OutFields 控制着Attribute的编辑--> </esri:FeatureLayer> </esri:Map> </esri:MapView> <StackPanel x:Name="headPanel" Orientation="Horizontal" Margin="20,20,0,0"> <!-- 绑定编辑按钮--> <StackPanel x:Name="headPanelMid" DataContext="{Binding ElementName=MyMapView, Path=Editor}"> </StackPanel> </StackPanel> <Grid x:Name="centerGrid" Margin="200"></Grid> </Grid>

2.编辑

界面

<Grid>
        <StackPanel x:Name="UserEdit" Orientation="Horizontal"> <Button Content="Edit" Margin="2" IsEnabled="False" x:Name="EditButton" Click="EditButton_Click" /> <Button Content="Attribute" Margin="2" IsEnabled="False" x:Name="AttributeButton" Click="AttributeButton_Click" /> <Button Content="Delete" Margin="2" IsEnabled="False" x:Name="DeleteButton" Click="EditButton_Click" /> <Button Content="Draw" Margin="2" x:Name="DrawButton" Click="DrawButton_Click" /> <Button Content="Delete Vertex" Margin="10,2,2,2" Command="{Binding DeleteVertex}" /> <Button Content="Undo" Margin="2" Command="{Binding Undo}" /> <Button Content="Redo" Margin="2" Command="{Binding Redo}" /> <Button Content="Complete" Margin="2" Command="{Binding Complete}" /> <Button Content="Cancel" Margin="2" Command="{Binding Cancel}" /> </StackPanel> </Grid>

功能

主要是对Featureservice的图形进行编辑。
首先从Featureservice中获取table,在table中进行一系列的操作。UpdateAsync修改的feature，DeleteAsync删除，AddAsync添加。最后通过SaveResult（）将编辑结果上传到服务中。

public Edit()
        {
            InitializeComponent();
            GlobalApp.MyMapView.MapViewTapped += MyMapView_MapViewTapped;
        }
        private async void MyMapView_MapViewTapped(object sender, MapViewInputEventArgs e) { if (GlobalApp.MyMapView.Editor.IsActive) return; var layer = GlobalApp.MyMapView.Map.Layers["Incidents"] as FeatureLayer; layer.ClearSelection(); SetGeometryEditor(); string message = null; try { // Performs hit test on layer to select feature. var features = await layer.HitTestAsync(GlobalApp.MyMapView, e.Position); if (features == null || !features.Any()) return; var featureID = features.FirstOrDefault(); layer.SelectFeatures(new long[] { featureID }); var feature = await layer.FeatureTable.QueryAsync(featureID); SetGeometryEditor(feature); } catch (Exception ex) { message = ex.Message; } if (!string.IsNullOrWhiteSpace(message)) MessageBox.Show(message); } private void SetGeometryEditor(Feature feature = null) { EditButton.Tag = feature; EditButton.IsEnabled = feature == null ? false : true; DeleteButton.IsEnabled = feature == null ? false : true; AttributeButton.IsEnabled = feature == null ? false : true; DrawButton.IsEnabled = feature == null ? true : false; } private async void EditButton_Click(object sender, RoutedEventArgs e) { var feature = (Feature)EditButton.Tag; var layer = GlobalApp.MyMapView.Map.Layers["Incidents"] as FeatureLayer; var table = (ArcGISFeatureTable)layer.FeatureTable; string which_Button = (sender as Button).Content.ToString(); // Hides feature from feature layer while its geometry is being modified. layer.SetFeatureVisibility(layer.SelectedFeatureIDs, false); string message = null; try { // Enables geometry editing and update its geometry // using GeometryEngine to correct ring orientation. if (which_Button == "Edit") { var geometry = await GlobalApp.MyMapView.Editor.EditGeometryAsync(feature.Geometry); feature.Geometry = GeometryEngine.Simplify(geometry); await table.UpdateAsync(feature); this.SaveResult(table); } if (which_Button == "Delete") { await table.DeleteAsync(feature); this.SaveResult(table); } if (which_Button == "Attribute1") { if (GlobalApp.mainwindow.centerGrid.Children != null) GlobalApp.mainwindow.centerGrid.Children.Clear(); EditAttribute editAttribute = new EditAttribute(feature); editAttribute.Height = 400; editAttribute.Width = 400; GlobalApp.mainwindow.centerGrid.Children.Add(editAttribute); } } catch (TaskCanceledException) { // Ignore TaskCanceledException - usually happens if the editor gets cancelled or restarted } catch (Exception ex) { message = ex.Message; } finally { layer.SetFeatureVisibility(layer.SelectedFeatureIDs, true); layer.ClearSelection(); SetGeometryEditor(); } if (!string.IsNullOrWhiteSpace(message)) MessageBox.Show(message); } private async void DrawButton_Click(object sender, RoutedEventArgs e) { var layer = GlobalApp.MyMapView.Map.Layers["Incidents"] as FeatureLayer; var table = (ArcGISFeatureTable)layer.FeatureTable; GeodatabaseFeature feature = table.CreateNew(); Esri.ArcGISRuntime.Geometry.Geometry addGeo = await GlobalApp.MyMapView.Editor.RequestShapeAsync(DrawShape.Polygon, null); feature.Geometry = addGeo; await table.AddAsync(feature.Attributes, addGeo); this.SaveResult(table); } private async void SaveResult(ArcGISFeatureTable table) { try { string message = null; if (table.HasEdits) { if (table is ServiceFeatureTable) { var serviceTable = (ServiceFeatureTable)table; // Pushes geometry edits back to the server. var result = await serviceTable.ApplyEditsAsync(); if (result.UpdateResults == null || result.UpdateResults.Count < 1) return; var updateResult = result.UpdateResults[0]; if (updateResult.Error != null) message = updateResult.Error.Message; } } }catch(Exception e) { } } private void AttributeButton_Click(object sender, RoutedEventArgs e) { var feature = (Feature)EditButton.Tag; if (GlobalApp.mainwindow.centerGrid.Children != null) GlobalApp.mainwindow.centerGrid.Children.Clear(); EditAttribute editAttribute = new EditAttribute(feature); editAttribute.Height = 400; editAttribute.Width = 300; GlobalApp.mainwindow.centerGrid.Children.Add(editAttribute); }

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