1 在ArcMap中添加进度条
调用此代码会弹出进度条
/// <summary> /// Launch a Progress Dialog to display how long it is taking to complete some event. /// </summary> /// <param name="application">An IApplication interface.</param> /// <param name="int32_Minimum">A System.Int32 that is the starting point for the progress display. Example: 0</param> /// <param name="int32_Maximum">A System.Int32 that is the ending point for a progress display. Example: 10000</param> /// <param name="string_Message">A System.String that is the message you want to user to see. Example: "Parsing Data, Please Wait.</param> /// <remarks> /// Calling this sub/method by itself is only half of the programming effort. Inside of the For loop you do something /// that requires time to progress. /// </remarks> public void ShowProgressDialog(ESRI.ArcGIS.Framework.IApplication application, System.Int32 int32_Minimum, System.Int32 int32_Maximum, System.String string_Message) { // Create a CancelTracker ESRI.ArcGIS.esriSystem.ITrackCancel trackCancel = new ESRI.ArcGIS.Display.CancelTrackerClass(); ESRI.ArcGIS.Framework.IProgressDialogFactory progressDialogFactory = new ESRI.ArcGIS.Framework.ProgressDialogFactoryClass(); // Set the properties of the Step Progressor System.Int32 int32_hWnd = application.hWnd; ESRI.ArcGIS.esriSystem.IStepProgressor stepProgressor = progressDialogFactory.Create(trackCancel, int32_hWnd); stepProgressor.MinRange = int32_Minimum; stepProgressor.MaxRange = int32_Maximum; stepProgressor.StepValue = 1; stepProgressor.Message = string_Message; // Create the ProgressDialog. This automatically displays the dialog ESRI.ArcGIS.Framework.IProgressDialog2 progressDialog2 = (ESRI.ArcGIS.Framework.IProgressDialog2)stepProgressor; // Explict Cast // Set the properties of the ProgressDialog progressDialog2.CancelEnabled = true; progressDialog2.Description = "Counting to " + int32_Maximum.ToString() + "."; progressDialog2.Title = "Counting..."; progressDialog2.Animation = ESRI.ArcGIS.Framework.esriProgressAnimationTypes.esriDownloadFile; // Step. Do your big process here. System.Boolean boolean_Continue = false; boolean_Continue = true; System.Int32 i = 0; for (i = int32_Minimum; i <= int32_Maximum; i++) { ESRI.ArcGIS.esriSystem.IStatusBar statusBar = application.StatusBar; statusBar.set_Message(0, i.ToString()); //TODO: //Ideally you would call another sub/function/method from here to do the //work. For example read all files of a specified types on disk, loop //through a recordset, etc. //... //Check if the cancel button was pressed. If so, stop process boolean_Continue = trackCancel.Continue(); if (!boolean_Continue) { break; } } // Done trackCancel = null; stepProgressor = null; progressDialog2.HideDialog(); progressDialog2 = null; }
2 在状态栏显示默认默认动画
调用此代码，会在状态栏中显示不断转动的小地球
Play the default animation progressor on the status bar while messages are shown
/// <summary> /// Play the default animation progressor on the status bar while messages are shown. /// </summary> /// <param name="application">An IApplication interface.</param> /// <param name="stopLoop">An Int32 that is the ending counter in the loop to display in the animation progressor. Example: 30000</param> /// <remarks>The status bar gives users an indication that the appplication is processing.</remarks> public void AnimationProgressor(ESRI.ArcGIS.Framework.IApplication application, System.Int32 stopLoop) { ESRI.ArcGIS.esriSystem.IStatusBar statusBar = application.StatusBar; ESRI.ArcGIS.esriSystem.IAnimationProgressor animationProgressor = statusBar.ProgressAnimation; animationProgressor.Show(); animationProgressor.Play(0, -1, -1); System.Int32 iteration = 0; for (iteration = 0; iteration <= stopLoop; iteration++) { // TODO: Add your code here to do things like: read or copy files, draw point moving on the screen, etc. // ... statusBar.set_Message(0, "Counting..." + iteration.ToString()); } animationProgressor.Stop(); animationProgressor.Hide(); }
3 其他工具
3.1 加入Identify工具
///<summary>Performs an identify (via the Identify Dialog) on the layers in the Active View.</summary> /// ///<param name="activeView">An IActiveView interface</param> ///<param name="x">An System.Int32 in device (screen) coordinates. Example: 300</param> ///<param name="y">An System.Int32 in device (screen) coordinates. Example: 100</param> /// ///<remarks></remarks> public void DoIdentify(ESRI.ArcGIS.Carto.IActiveView activeView, System.Int32 x, System.Int32 y) { if(activeView == null) { return; } ESRI.ArcGIS.Carto.IMap map = activeView.FocusMap; ESRI.ArcGIS.CartoUI.IIdentifyDialog identifyDialog = new ESRI.ArcGIS.CartoUI.IdentifyDialogClass(); identifyDialog.Map = map; //Clear the dialog on each mouse click identifyDialog.ClearLayers(); ESRI.ArcGIS.Display.IScreenDisplay screenDisplay = activeView.ScreenDisplay; ESRI.ArcGIS.Display.IDisplay display = screenDisplay; // Implicit Cast identifyDialog.Display = display; ESRI.ArcGIS.CartoUI.IIdentifyDialogProps identifyDialogProps = (ESRI.ArcGIS.CartoUI.IIdentifyDialogProps)identifyDialog; // Explicit Cast ESRI.ArcGIS.Carto.IEnumLayer enumLayer = identifyDialogProps.Layers; enumLayer.Reset(); ESRI.ArcGIS.Carto.ILayer layer = enumLayer.Next(); // while (!(layer == null)) { identifyDialog.AddLayerIdentifyPoint(layer, x, y); layer = enumLayer.Next(); } identifyDialog.Show(); }
后期考虑实现自己动手实现ArcMap的Identify功能+附源码的功能，
3.2 为选中特征建立缓冲区
///<summary>Draws graphic buffers around the selected features in the map using distance units specified.</summary> /// ///<param name="activeView">An IActiveView interface.</param> ///<param name="distance">A System.Double that is the distance in map units around the select features to draw a graphic buffer. Example: 10</param> /// ///<remarks></remarks> public void CreateGraphicBuffersAroundSelectedFeatures(ESRI.ArcGIS.Carto.IActiveView activeView, System.Double distance) { //parameter check if (activeView == null || distance < 0) { return; } ESRI.ArcGIS.Carto.IMap map = activeView.FocusMap; // Clear any previous buffers from the screen ESRI.ArcGIS.Carto.IGraphicsContainer graphicsContainer = (ESRI.ArcGIS.Carto.IGraphicsContainer)map; // Explicit Cast graphicsContainer.DeleteAllElements(); // Verify there is a feature(s) selected if (map.SelectionCount == 0) { return; } // Reset to the first selected feature ESRI.ArcGIS.Geodatabase.IEnumFeature enumFeature = (ESRI.ArcGIS.Geodatabase.IEnumFeature)map.FeatureSelection; // Explicit Cast enumFeature.Reset(); ESRI.ArcGIS.Geodatabase.IFeature feature = enumFeature.Next(); // Buffer all the selected features by the buffer distance and create a new polygon element from each result ESRI.ArcGIS.Geometry.ITopologicalOperator topologicalOperator; ESRI.ArcGIS.Carto.IElement element; while (!(feature == null)) { topologicalOperator = (ESRI.ArcGIS.Geometry.ITopologicalOperator)feature.Shape; // Explicit Cast element = new ESRI.ArcGIS.Carto.PolygonElementClass(); element.Geometry = topologicalOperator.Buffer(distance); graphicsContainer.AddElement(element, 0); feature = enumFeature.Next(); } activeView.PartialRefresh(ESRI.ArcGIS.Carto.esriViewDrawPhase.esriViewGraphics, null, null); }
获取当前视图下选择的要素：
IEnumFeature feaSelection = ArcMap.Document.FocusMap.FeatureSelection as IEnumFeature; IEnumFeatureSetup enumFeatureSetup = feaSelection as IEnumFeatureSetup; enumFeatureSetup.AllFields = true; //返回的包含所有要素字段 IFeature feature = feaSelection.Next(); IFeature feature = feaSelection.Next(); while (feature != null) { //.... feature = feaSelection.Next(); } feaSelection.Reset(); ArcMap.Document.FocusMap.ClearSelection();
