topic Re: mapview.gps for WGS? (gets location, but does not display on map) in ArcGIS Runtime SDK for iOS Questions

mapview.gps for WGS? (gets location, but does not display on map)

PatrickMaltagliati — Fri, 21 Jan 2011 04:30:40 GMT

I need to display the user's location on a WGS 1984 map.

self.mapView.gps.start;

The activity indicator starts and it appears to gather data, but nothing is displayed on the map. Of course, other maps display the user's location properly.

Is there any way to ask mapView.gps.start for the result in WGS or transform the result into the map coordinate system?

Or could there be another issue? I just started using ArcGIS recently.

Thanks for your time.

Re: mapview.gps for WGS? (gets location, but does not display on map)

KOLDODUARTE — Wed, 02 Feb 2011 09:17:23 GMT

Hi patmalt,

Please, replaces your line with this sentence:

[self.mapView.gps start];

... and very important: Try this on your device, not on simulator!

BR,
Koldo.

Re: mapview.gps for WGS? (gets location, but does not display on map)

JustinCarasick — Wed, 09 Mar 2011 23:49:57 GMT

Hi, i am experiencing the same situation. here is my code exactly. I am getting the map to show up but no icon for the GPS. I am running it on the device. Any ideas?

- (void)viewDidLoad {
[super viewDidLoad];

NSURL *mapUrl = [NSURL URLWithString:@"http://services.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer"];
AGSTiledMapServiceLayer *tiledLyr = [AGSTiledMapServiceLayer tiledMapServiceLayerWithURL:mapUrl];
[self.mapView addMapLayer:tiledLyr withName:@"Tiled Layer"];

[self.mapView.gps start];
}

Thanks,
Justin

Re: mapview.gps for WGS? (gets location, but does not display on map)

JustinCarasick — Wed, 09 Mar 2011 23:52:50 GMT

could it be because the service may be web mercator? i'll try to find a wgs84 service and give that a try.

Re: mapview.gps for WGS? (gets location, but does not display on map)

JustinCarasick — Thu, 10 Mar 2011 00:10:41 GMT

i changed the service to a wgs84 service but still no go.

Re: mapview.gps for WGS? (gets location, but does not display on map)

DiveshGoyal — Thu, 10 Mar 2011 06:07:46 GMT

The map may not be fully loaded at the time when you are starting the gps.

Could you move the gps code into the mapViewDidLoad: method of the map's delegate and see if that works?

Re: mapview.gps for WGS? (gets location, but does not display on map)

JustinCarasick — Tue, 15 Mar 2011 11:48:15 GMT

Yes, this did work. I did move the start.gps call. Thanks