Popup on mouseenter and/or hover

ThinkGeo UI for Desktop WPF
1

 


 


 Hello ThinkGeo,


 


 Using Inmemoryfeaturelayer, I have a  single-point  shape plotted. So, I tried initially with the mouse down with EditInteractiveOverlay class with 


 


 editlayer.MapMouseDown += new EventHandler(_MapMouseDown) and this works great


 


So my requirement: I want to do  either on  mouseenter or mouseover on a point a shape ..I want to display custompopup with queryfeature option(),  and this helps when I have plotted more poinshapes.


 


 I'm here with attaching code,please let us know why the popup is not appearing when user's mouse over  a point?? Appreciate early reply on this.


 



SimplePointShape.txt (6.31 KB)

2

Hi GS,


Pointshape Cannot contain a pointshape so we suggest you to use other method, e.g. 


 



PointShape ptShape = Map.ToWorldCoordinate(e.GetPosition(Map));

            double width = 5 * Map.CurrentExtent.Width / Map.WidthInPixels;
            RectangleShape boundingBox = new RectangleShape(ptShape.X - width, ptShape.Y + width, ptShape.X + width, ptShape.Y - width);
            testlayer.Open();

            Collection<Feature> selectedpoint = testlayer.QueryTools.GetFeaturesInsideBoundingBox(boundingBox, ReturningColumnsType.AllColumns);


Hope it helps,


Edgar



3

 Edgar,


Thanks for quick response.


On WPF application...I dont see MAP.WidthInPixels property.So I changed it as follows...


 



PointShape ptShape = Map.ToWorldCoordinate(e.GetPosition(Map));

            double width = 5 * Map.CurrentExtent.Width / Map.ActualWidth;
            RectangleShape boundingBox = new RectangleShape(ptShape.X - width, ptShape.Y + width, ptShape.X + width, ptShape.Y - width);
            testlayer.Open();

            Collection<feature> selectedpoint = testlayer.QueryTools.GetFeaturesInsideBoundingBox(boundingBox, ReturningColumnsType.AllColumns);</feature>

 


 


Is this correct ?? and after changing ...still ..I dont see popup appearing on mouseenter??



4

GS,


I used the MouseMove event and it works, you can use the following code:



void Map1_MouseMove(object sender, System.Windows.Input.MouseEventArgs e)
        {
            PointShape ptShape = Map1.ToWorldCoordinate(e.GetPosition(Map1));

            double width = 5 * Map1.CurrentExtent.Width / Map1.ActualWidth;
            RectangleShape boundingBox = new RectangleShape(ptShape.X - width, ptShape.Y + width, ptShape.X + width, ptShape.Y - width);
            layer.Open();

            Collection<Feature> selectedpoint = layer.QueryTools.GetFeaturesInsideBoundingBox(boundingBox, ReturningColumnsType.AllColumns);
            if (selectedpoint.Count > 0)
            {
                Popup pop = new Popup(selectedpoint[0].GetShape().GetCenterPoint()) { Content = selectedpoint[0].ColumnValues["AreaName"]};
                popOverlay.Popups.Add(pop);
                Map1.Refresh();
            }
        }

Hope it helps,


Edgar