Latest Contributions by MarkDostal

Thank you for the code, it helped reproduce things here.  After speaking with a member of our 3D team, I found a solution to your problem.  The LocationToScreen method takes an input MapPoint but its not aware of SurfacePlacement modes unlike Graphics in a Layer.  The MapPoint will be treated as absolute.  To work around this, you will need to retrieve the elevation value for the X,Y of the point and add it to the Z value of the graphic/geometry you want to input into the LocationToScreen method. sceneView.scene?.baseSurface?.elevation(for:, completion:) will retrieve the elevation, which you would then add to the Z value of your point. I realize you mentioned that method earlier, and that it is asynchronous, but hopefully it won't be too difficult to incorporate it into your code. Let me know if I can be of further assistance, Mark ... View more

Hello!  Thank you for your question.  You are correct, the "AGSArcGISMapImageLayer" does not have an option to change the symbology, but the sublayers of that layer do have that option.  They have a renderer property which allows you to set symbology that will be used to render that layer. You need to find the sublayer you want to change, create a renderer, and assign that renderer to the "renderer" property. let mapImageSublayer = mapImageLayer.mapImageSublayers[index] as! AGSArcGISMapImageSublayer let simpleRenderer = AGSSimpleRenderer(symbol: AGSSimpleMarkerSymbol(style: .cross, color: .red, size: 12)) mapImageSublayer.renderer = simpleRenderer   You need to make sure your layers support dynamic layers ("Supports Dynamic Layers: true").  See this blog post for more information. If you have more questions, let us know! Mark ... View more

Hello.  You can certainly use an AGSUniqueValueRenderer to accomplish what you want in a more performance-sensitive way.  Another way would be to optimize the "for" loop where you are creating the graphics.  Specifically: - create the two images outside of the loop.  They don't need to be created each time - the same for the Symbols.  Create the two symbols once, outside the "for" loop, then just use the appropriate symbol when creating the graphic - use one of the other AGSPoint initializers, such as AGSPointMakeWGS84, to eliminate creating an intermediate object (this was covered in a separate question) Finally, is there any way you could apply some optimizations to the "refreshData()" method?  You are removing all graphics and recreating them each time.  Is it possible to only remove/recreate a sub-set of them?  If only the geometries are changing, you could possible simply update the geometries for the graphics, instead of recreating everything? Graphics have a "visible" property that allows you to hide/show them.  You can also set a new geometry or symbol on the graphic without recreating it. Mark ... View more

Hello!  I think your analysis is correct when you mention the locationTrackingMode == .initial as the culprit.  In this line in ArcGISARView.swift you can see that the location data source is stopped if the tracking mode is anything other than .continuous. If you are depending on the location data source continuously providing location updates, use the ARLocationTrackingMode.continuous mode. Let us know if that doesn't solve your problem or you have other questions.  Best of luck! Mark ... View more