Latest Contributions by MarkDostal

Hello!  What kind of wrong values are you seeing with the screenPoint?  Can you provide some sample values of the inputs to "locationToScreen" and the incorrect output values you are getting?  Where are the input points coming from? Also, what version of the Runtime SDK are you using? Thank you, Mark ... View more

Hello, thank you for your question!  I suspect the problem lies with how you are creating the point geometry.  You don't have to create an intermediate CLLocation, but instead you can create the point using your lat/long values directly.  See the AGSPointMakeWGS84 method.  The important thing is that the spatial reference of the coordinates you are using and the SpatialReference of the point created match.  If they do, you shouldn't see the "movement" of your graphic in the overlay. Please let us know if that doesn't work for you.  Good luck! Mark ... View more

The Runtime will project points in a different SR than the scene to the correct SR.  If it's working with what you have, then all is good.  The important thing is to always specify a SpatialReference when creating geometries. ... View more

I misspoke in my earlier reply.  The spatial reference of the Esri basemaps is `.webMercator`, not `.wgs84`.  Sorry if there was any confusion. ... View more

If you are using one of the Esri basemaps, the spatial reference should be `.wgs84`, and the coordinate you sent should be fine as-is.  Is there a vertical/altitude component in the data for each point?  Those should be in meters if you are creating points for the polygon (the "z" value below): let point = AGSPoint(x: -116.5521466667, y: 33.824821666, z: 300.32, spatialReference: .wgs84()) I'm assuming you're creating AGSPoint s to add to the polygon; you should include a spatial reference for those (like above).  So it's just the polygon and points that need the SR specified. As for calibration, you only need to calibrate the map/scene.  You are correct, the objects are anchored in the map/scene, sorry for the confusion. For GraphicsOverlays, you don't need to do anything other than create one (or more) of them and add graphics to them.  Because the graphics have a geometry, they know where to be drawn.  You can add any graphics you want to an overlay, so you really only need one, unless you want to organize different graphics in different overlays to make them easy to manage; up to you. If you want, you can send me some representative data (and which basemap you're using) and I can try placing it in an overlay here.  Are you using an elevation source in the scene? Thanks, Mark ... View more

Hello and thank you for your question!  Are the object coordinates in the same spatial reference as the base map?  Also, are you using an elevation source in your scene and do the coordinates have a `z` (elevation) component?  Those are two common problems when displaying external data. Are you able to display the base map data OK?  If you're using an elevation source, does the device show you are in the correct vertical position (meaning you're not showing up under the surface of the base data)? Esri has an open-source Toolkit for use with the iOS Runtime SDK.  The Toolkit has an AR component you can look at for reference.  From the Toolkit doc: The AR toolkit component is comprised of one class: `ArcGISARView`. This is a subclass of `UIView` that contains the functionality needed to display an AR experience in your application. It uses `ARKit`, Apple's augmented reality framework to display the live camera feed and handle real world tracking and synchronization with the Runtime SDK's `AGSSceneView`. The `ArcGISARView` is responsible for starting and managing an `ARKit` session. It uses a user-provided `AGSLocationDataSource` for getting an initial GPS location and when continuous GPS tracking is required. One final note: unless you're using an external, high-accuracy GPS, the device (iPhone/iPad) location/elevation can sometimes only be accurate to 40 meters, so your object and device location may not be where you think.  In this case, a calibration step (which is also demonstrated in the Toolkit) may be warranted. Please let us know if you have more questions! Mark   ... View more

@bferrao Hello, I wanted to follow up and see if you've been able to resolve your issue. ... View more

@Selsoe Thanks for the additional info.  I will reach out to my colleagues and see what we can come up with. Mark ... View more

@Selsoe Take a look at this Esri Technical Support article and let me know if it matches your situation.  If it doesn't, can you give some additional information about your service, the type of authentication it uses, etc? Mark ... View more