fix build on iOS (caused by geospatial), arkit map now only track if anchor is...

The .map file can be placed in the Unity persistent data path of the application on the user device with the following name: "ARkitWorlMap.map". Alternatively, the variable keyvalueTags of the Trackable can also contain a parameter with the "url" key providing a link to download the map file.

By default, the origin of the Map Trackable is the point (0, 0 ,0). If the Map includes an Anchor, you can use it as the origin by setting the name of the Trackable in the World Storage with the TrackableId of the ARAnchor stored in the map. https://docs.unity3d.com/Packages/com.unity.xr.arfoundation@5.1/api/UnityEngine.XR.ARSubsystems.TrackableId.html

The map needs to include at least one Anchor. You can use one of them as the origin of the map by setting the name of the Trackable in the World Storage with the TrackableId of the ARAnchor stored in the map. https://docs.unity3d.com/Packages/com.unity.xr.arfoundation@5.1/api/UnityEngine.XR.ARSubsystems.TrackableId.html

Samples for creating and serializing an ARWorldMap with ARFoundation can be found here:

https://github.com/Unity-Technologies/arfoundation-samples/blob/main/Assets/Scripts/Runtime/ARWorldMapController.cs 

        WorldAnalysisARFoundationModuleImage imageModule = new WorldAnalysisARFoundationModuleImage();

        m_trackableModules.Add(imageModule);

        WorldAnalysisARFoundationModuleGeospatial geospatialModule = new WorldAnalysisARFoundationModuleGeospatial();

        m_trackableModules.Add(geospatialModule);

#if UNITY_IOS

        WorldAnalysisARFoundationModuleMesh meshModule = new WorldAnalysisARFoundationModuleMesh();

        m_trackableModules.Add(meshModule);

        // todo add script define symbol for using arcore extensions

        WorldAnalysisARFoundationModuleARCoreAnchor arCoreAnchorModule = new WorldAnalysisARFoundationModuleARCoreAnchor();

        m_trackableModules.Add(arCoreAnchorModule);

        WorldAnalysisARFoundationModuleGeospatial geospatialModule = new WorldAnalysisARFoundationModuleGeospatial();

        m_trackableModules.Add(geospatialModule);

#else

        /// on other os : if arcore extensions is in the scene we disable it

        Google.XR.ARCoreExtensions.ARCoreExtensions arCoreExtensions = Component.FindObjectOfType<Google.XR.ARCoreExtensions.ARCoreExtensions>();

                data.Dispose();

            }

            sessionSubsystem.ApplyWorldMap(worldMap);

            UpdateTrackableInfoWithPose(Vector3.zero, Quaternion.identity); // before trying to find an anchor: default pause is origin of the map

            //UpdateTrackableInfoWithPose(Vector3.zero, Quaternion.identity); // before trying to find an anchor: default pause is origin of the map

        }

    }

}