topic Re: Add Geodatabase layer to Map in Qt Maps SDK Questions

Add Geodatabase layer to Map

LaurynasGedminas2 — Tue, 05 Mar 2019 21:38:56 GMT

How to add local Geodatabase feature class grammatically to the Map object created thru: ArcGISRuntimeEnvironment.createObject("Map",{}); ?

Thank you

Re: Add Geodatabase layer to Map

LucasDanzinger — Fri, 08 Mar 2019 18:11:38 GMT

Here is some code to do this - arcgis-runtime-samples-qt/FeatureLayer_Geodatabase.qml at master · Esri/arcgis-runtime-samples-qt · GitHub

Essentially you need to:

- Create a Geodatabase object via the path to the local file - Geodatabase QML Type | ArcGIS for Developers

- Iterate through the list of GeodatabaseFeatureTable objects - Geodatabase QML Type | ArcGIS for Developers

- For each feature table, create a Feature Layer by setting the featureTable property - FeatureLayer QML Type | ArcGIS for Developers

- Add the FeatureLayers to the Map's operational layer list model

Re: Add Geodatabase layer to Map

LaurynasGedminas2 — Sat, 11 Dec 2021 10:12:59 GMT

I am trying to create the Map object from Geodatabase layer:

var geodb = ArcGISRuntimeEnvironment.createObject("Geodatabase", {path: outputGdb});
var t1 = geodb.geodatabaseFeatureTablesByTableName["offline_test"];
var fc = ArcGISRuntimeEnvironment.createObject("FeatureLayer", {featureTable: t1
           });
var map2 = ArcGISRuntimeEnvironment.createObject("Map",{});
map2.operationalLayers.append(fc);
mapView.map = map2;

Map loads with no data, is this wrong way to load GB data programmatically?

Thank you,

Re: Add Geodatabase layer to Map

LaurynasGedminas2 — Sat, 11 Dec 2021 10:13:02 GMT

Proper way:

var geodb = ArcGISRuntimeEnvironment.createObject("Geodatabase", {

                                                                    path: outputGdb});

geodb.loadStatusChanged.connect(function () {

     if (Enums.LoadStatusLoaded === geodb.loadStatus) {

                        var tables = geodb.geodatabaseFeatureTables;

                        var t1 = geodb.geodatabaseFeatureTablesByTableName["offline_test"];

                        var fc = ArcGISRuntimeEnvironment.createObject("FeatureLayer", 
                           {featureTable: t1});

                        var map = ArcGISRuntimeEnvironment.createObject("Map",{});

                        map.operationalLayers.append(fc);

                        mapView.map = map;

})

Thank you,