Get start / end coordinates of selected line feature

Question

Hi,

I haven't a lot of C# experience, so my question might be on the dim side. However I will ask anyway.

What would be the easiest way to go about checking if the first element of selected features in the map is a Polyline, and if yes; get the first and last coordinate in the coordinate array?

I have tried both Map.GetSelection and MapView.GetFeatures, however I am struggling to understand the best way to access the specific features and specifically its coord-array.

All help would be dearly appreciated.

SreenivasaRaoPigili · Accepted Answer

Hi, 1. Select 'Map Tool' project template to create the add-in. 2. Changed the cursor as normal cursor in the constructor(), public CaptureCoordinates() { IsSketchTool = true; SketchType = SketchGeometryType.Point; //.Point; //UseSnapping = true; SketchOutputMode = SketchOutputMode.Screen; var systemCursor = System.Windows.Input.Cursors.Arrow; Cursor = systemCursor; } 3. This will give us "onsketchcompleteasync" functionality. This will return the selected geometry as Geometry object. within this method, use protected async override Task OnSketchCompleteAsync(Geometry geometry) { long targetID=0; string strTargetLayerName = null; await QueuedTask.Run(() => { var sourceSelection = ActiveMapView.SelectFeatures(geometry, SelectionCombinationMethod.New); foreach (KeyValuePair> eachSel in sourceSelection) { targetID = eachSel.Value[0]; strTargetLayerName = eachSel.Key.Name; } var inspTargetInspector = new Inspector(); var selectedTargetFeatures = ArcGIS.Desktop.Mapping.MapView.Active.Map.GetSelection(); inspTargetInspector.Load(selectedTargetFeatures.Keys.First(), targetID); if (inspTargetInspector.Shape.GeometryType == GeometryType.Polyline) { var objpolyline = inspTargetInspector.Shape as Polyline; //Below logic will change based on the logic. For now, we are just printing X, Y coordinates of each point in the polyline. for (int i = 0; i < objpolyline.PointCount; i++) { MessageBox.Show("Points are : " + objpolyline.Points[i].X.ToString() + " " + objpolyline.Points[i].Y.ToString()); } } }); return true; } After running application --> click on the add-in --> select the feature which we want to get coordinates. I hope, This will help you to get started as a draft. I am sure we can tweak this code further. Thanks. Sreeni.