Latest Contributions by BrianBulla

Hi, I'm creating a MapTool to help with creating a fully digitized sewer connection.  It works by sketching a line on the map;  the first click creates the connection to the sewer, the last click the 'end' of the line, and everything in between is the actual sewer connection. Currently I check for the first click to be intersecting the gravityMainLayer in the OnSketchCompleteAsync.  It works, and I've created some IntersectsLayer code to determine an intersection of the first point. protected override Task<bool> OnSketchCompleteAsync(Geometry geometry) { var pointCollection = ((Multipart)geometry).Points; MapPoint connectionPoint = pointCollection[0]; MapPoint plugPoint = pointCollection[pointCollection.Count - 1]; QueuedTask.Run(() => { if (IntersectsLayer(connectionPoint, gravityMainLayer) == false) { ArcGIS.Desktop.Framework.Dialogs.MessageBox.Show("The starting point must intersect the GravitySewer layer.", "Error"); return; } ..... blah, blah, blah, ..... return base.OnSketchCompleteAsync(geometry); } public bool IntersectsLayer(MapPoint point, FeatureLayer layer) { try { SpatialQueryFilter spatialFilter = new SpatialQueryFilter(); spatialFilter.FilterGeometry = point; spatialFilter.SpatialRelationship = SpatialRelationship.Intersects; RowCursor theCursor = layer.Search(spatialFilter); Feature feature; while (theCursor.MoveNext()) { using (feature = (Feature)theCursor.Current) { return true; } } return false; } catch (Exception ex) { ArcGIS.Desktop.Framework.Dialogs.MessageBox.Show(ex.ToString()); } return false; }‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ To make things work better for the user, I am trying to have it check for the intersection after the first mouse click, to avoid the user making more clicks when not necessary.  So I am using the OnToolMouseDown to capture the first click, and the look for the intersection.  The problem is that each time the IntersectLayer always returns false, even though I am for sure clicking a point that is intersecting the gravityMainLayer.  As soon as I comment out the OnToolMouseDown code, everything works fine again. So my question is should the OnToolMouseDown event return the same MapPoint as the OnSketchCompleteAsync event??  From stepping through the code, it looks like a valid point, but I don't understand why it is never intersecting. protected override void OnToolMouseDown(MapViewMouseButtonEventArgs e) { if (e.ChangedButton == System.Windows.Input.MouseButton.Left) { clickCount++; e.Handled = true; //Handle the event args to get the call to the corresponding async method } //base.OnToolMouseDown(e); } protected override Task HandleMouseDownAsync(MapViewMouseButtonEventArgs e) { if (clickCount == 1) { QueuedTask.Run(() => { var mapPoint = MapView.Active.ClientToMap(e.ClientPoint); if (IntersectsLayer(mapPoint, gravityMainLayer) == false) { ArcGIS.Desktop.Framework.Dialogs.MessageBox.Show("The starting point must intersect the GravitySewer layer.", "Error"); clickCount = 0; } }); } return base.HandleMouseDownAsync(e); }‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ ... View more

Hi, I'm using a MapTool to create some custom features to represent Sanitary Service Connections.  The completed line contains a line, with a point on either end.  My code is working fine, but I'd like to keep all of the created features selected.  When I go to create the next service connection, the previous one de-selects.  Is there a way to keep all features selected through the code?? protected override Task<bool> OnSketchCompleteAsync(Geometry geometry) { var pointCollection = ((Multipart)geometry).Points; MapPoint connectionPoint = pointCollection[0]; MapPoint plugPoint = pointCollection[1]; QueuedTask.Run(() => { if (IntersectsLayer(connectionPoint, gravityMainLayer) == false) { ArcGIS.Desktop.Framework.Dialogs.MessageBox.Show("The starting point must intersect the GravitySewer layer.", "Error"); return; } var editOp = new EditOperation(); editOp.Name = "Create new Sewer Connection"; var connectionAttributes = new Dictionary<string, object> { {"SUBTYPECD", 3 }, {"Shape", connectionPoint.Clone() } }; //editOp.Create(sewerFittingsLayer, connectionPoint); editOp.Create(sewerFittingsLayer, connectionAttributes); var plugAttributes = new Dictionary<string, object> { {"SUBTYPECD", 2 }, {"Shape", plugPoint.Clone() } //determine ROTATION here also!! }; editOp.Create(sewerFittingsLayer, plugAttributes); var lineAttributes = new Dictionary<string, object> { {"SUBTYPECD", 1 }, {"Shape", GeometryEngine.Instance.ReverseOrientation((Multipart)geometry).Clone() }, {"DIAMETER", 50 }, //determine LENGTH here!! }; editOp.Create(sewerServiceLayer, lineAttributes); var result = editOp.Execute(); if (result != true || editOp.IsSucceeded != true) throw new Exception($@"Edit failed: {editOp.ErrorMessage}"); }); return base.OnSketchCompleteAsync(geometry); }‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍ ... View more

Hi, I've been droning for a while now, but I'm about to do my first drone job of a gravel stockpile for a volume measurment.  Can anyone offer any advice on the best way to do this? How many pictures?  Drone speed?  Resolution?  Camera angle?  etc. Thanks! ... View more

Hi, So I'm working on a bit of code to visualize sewer service connection from field CCTV data.  In the example below, there should be 5 connection on the selected sewer line.  I can add those to the map (red squares...see below) as a MapOverlay without any issues.   I am now stuck at how to determine the nearest point on the Parcel fabric (polygon layer) because I need to now draw a line (see the hand drawn blue lines below) that goes from the connection point (red square) to the nearest point of the parcel fabric, but using the 'Clock' value as a guide for knowing which direction the sewer connection line is going. Does that make any sense??  I see there is a NearestPoint in the GeometryEngine, but I'm not sure how to select the nearest parcel in a given direction. ... View more