topic Re: 3D elevation sometimes not working in Android in Qt Maps SDK Questions

3D elevation sometimes not working in Android

PietroMaps — Mon, 16 Oct 2023 12:18:46 GMT

Hi everyone,

I am using Appstudio to create a 3D GIS mobile app. I am using the SceneView to visualize 3D maps with elevations. I have a strange bug: sometimes the elevation seems to not work in Android, while it works in all the other platforms (Windows, iOS and Mac). The bug seems to be totally random and I cannot fully reproduce the behaviour every time (except during official presentations, where it never work!).

This is the demo code:

import QtQuick 2.13 import QtQuick.Controls 2.13 import ArcGIS.AppFramework 1.0 import Esri.ArcGISRuntime 100.15 Rectangle { width: 800 height: 600 property real size: 0.01 property int maxZ: 1000 property var colors: [] // Create a scene view SceneView { id: sceneView anchors.fill: parent // create a scene...scene is a default property of sceneview // and thus will get added to the sceneview Scene { // add a basemap Basemap { initStyle: Enums.BasemapStyleArcGISImageryStandard } // add a surface...surface is a default property of scene Surface { // add an arcgis tiled elevation source...elevation source is a default property of surface ArcGISTiledElevationSource { url: "https://elevation3d.arcgis.com/arcgis/rest/services/WorldElevation3D/Terrain3D/ImageServer" } } } GraphicsOverlay { id: graphicsOverlay SimpleRenderer { RendererSceneProperties { extrusionMode: Enums.ExtrusionModeBaseHeight extrusionExpression: "[height]" } SimpleFillSymbol{ style: Enums.SimpleFillSymbolStyleSolid; color: "red" } } } Component.onCompleted: { // Set the focus on SceneView to initially enable keyboard navigation forceActiveFocus(); // set viewpoint to the specified camera setViewpointCameraAndWait(camera); } } // create the camera to be used as the scene view's viewpoint Camera { id: camera location: Point { x: 83.9 y: 28.4 z: 10010.0 spatialReference: SpatialReference { wkid: 4326 } } heading: 10.0 pitch: 80.0 roll: 0.0 } }

I am using Cloud make to create Android builds.

Thanks in advance!

Re: 3D elevation sometimes not working in Android

TroyFoster — Mon, 16 Oct 2023 12:48:19 GMT

I dont do android development, but is it possible to listen to the loadErrorChanged and loadStatusChanged signals for all your different components and then log somehow the errors that occurred?

https://developers.arcgis.com/qt/qml/api-reference/qml-esri-arcgisruntime-loadable.html

Re: 3D elevation sometimes not working in Android

PietroMaps — Tue, 17 Oct 2023 09:07:08 GMT

@TroyFoster ok thanks I can try to log the error. I will update this post when and if I'll get something.

Re: 3D elevation sometimes not working in Android

TroyFoster — Tue, 17 Oct 2023 12:12:20 GMT

My Esri conspiracy theory: none of the samples on github have error handling to keep people coming back to these forums as a way of increasing engagement with users. Since probably 70% of the questions on here would be clarified by printing out the error message.

Re: 3D elevation sometimes not working in Android

PietroMaps — Wed, 18 Oct 2023 13:41:58 GMT

Regarding the issue, yes printing the error should help to figure our where the issue is, but it's strange that this happens only when using the application in Android. Honestly, for me this is a bug of the framework. I will keep you updated btw!