Style dynamic map overlay using renderer from *.lyrx file

Question

Hi,

I have a new use case where I could need some help to get in the right direction.

Actually I receive live data via events, measurements with coordinates and I want to add them dynamically to a map overlay. I have a separate *.lyrx file with a symbology / classification that I want to use for the overlay. So how can I realize that?

Is it possible to create an overlay or map layer with an in memory data source to which I add points at runtime? Is there such a layer type and does it refresh automatically or by command?

Any hints and help would be very appreciated.

RichardReinicke · Answer

Now I have a similar task at another part of my add-in. Again I want to create a feature layer based on an in-memory datastore. I want to add a couple of MapPoints to that in-memory datastore and my layer to update accordingly. So is it possible to create an instance of FeatureLayer on an in-memory data source? If it`s not passible: Can I create a collection/bag of MapPoints and add them as a standard Graphic Overlay at once? I have some code already but LayerFactory.Instance.CreateFeatureLayer() doesn't accept my CIMInMemoryDatasetDataConnection also I didn`t find some more detailled docs on how to use this type of connection CIMInMemoryDatasetDataConnection inMemoryDatastore = new CIMInMemoryDatasetDataConnection(); inMemoryDatastore.Dataset = "Wegpunkte"; FeatureLayer waypointLyr = LayerFactory.Instance.CreateFeatureLayer( inMemoryDatastore, MapView.Active.Map, LayerPosition.AddToTop, "Wegpunkte") as FeatureLayer; var createWaypointsOperation = new EditOperation(); using (RowCursor shapefileCursor = shapefileData.Search(null, false)) { while (shapefileCursor.MoveNext()) { using (Feature feature = (Feature)shapefileCursor.Current) { ArcGIS.Core.Geometry.Geometry geom = feature.GetShape(); if (geomType == GeometryType.Point) { createWaypointsOperation.Create(waypointLyr, geom as MapPoint); } else if (geomType == GeometryType.Polyline) { using (IEnumerator<MapPoint> enumPts = ((Polyline)geom).Points.GetEnumerator()) { while (enumPts.MoveNext()) { createWaypointsOperation.Create(waypointLyr, enumPts.Current); } } } } } }‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍