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wrapAround doesn't work with tiled service in iOS, works in other API's

LukePhilips

Hey,
I've got a tiled map service that is Web Mercator (WKID 102100), I have no problem using it in the other client API's (e.g. JavaScript) with wrapAround however when I add it to a iOS mapView the wrap around no longer works. any recommended means of debugging this?

Thanks

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NimeshJarecha

Luke,

What you mean by no longer works? Are you setting the self.mapView.wrapAround property to TRUE?

Regards,
Nimesh

LukePhilips

Yes, I've thrown together a basic viewer that just adds the World Street Map as a baseMap with mapView.wrapAround = YES. That works, then I start adding a FeatureLayer, DynamicMapServiceLayer, and a TiledMapServiceLayer, commenting each on/off to test the wrapAround. The FeatureLayer and DynamicServiceLayer are no problem, but once I comment out those and add the TiledMapServiceLayer then the map no longer pans around the Date Line.

NimeshJarecha

There are certain *Constraints* for wrap around to work. Please refer all details in the Wrap Around doc.

1. Is your base layer's spatial reference either WGS 1984 or Web Mercator?
2. Is the base layer's full envelope covers entire world?

Regards,
Nimesh

LukePhilips

1. Yes
2. Yes
Though how are these constraints verified in the SDK? e.g. I can see from the service that the Spatial Reference value is: 102100 (3857), is that the value checked by the SDK? As well, I have no problem with this service in the other SDK's like JavaScript when using wrapAround.

NimeshJarecha

These constrains are verified based on mapView's properties. When wrap around is not working, verify that.

Regards,
Nimesh

LukePhilips

When wrap around is not working, verify that.

I'm looking for? I can see that the mapView property for wrapAround goes to false once I add my tiled layer. I see the Spatial reference and full envelope though are the same with or without my tiled layer, e.g.:
mapView->_fullEnvelope:
AGSEnvelope: xmin = -20037507.067162, ymin = -19971868.880409, xmax = 20037507.067162, ymax = 19971868.880409, spatial reference: [AGSSpatialReference: wkid = 102100, wkt = null]

NimeshJarecha

Can you please list out the sequence of steps you are following? Are you loading your tiled layer as base layer?
Did you try just adding your tiled layer (no other layer) with wrapAround = TRUE? What happens in that case?

Regards,
Nimesh

LukePhilips

First I'll do this:

#define kBaseMapMapServiceURL @"http://services.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer"
...

- (void)viewDidLoad {
    [super viewDidLoad];    
    //assign the layer delegate. 
 self.mapView.layerDelegate = self;
    //add the base map. 
 NSURL *mapUrl = [NSURL URLWithString:kBaseMapMapServiceURL];
 self.baseMapLayer = [AGSTiledMapServiceLayer tiledMapServiceLayerWithURL:mapUrl];
 [self.mapView addMapLayer:self.baseMapLayer withName:@Base Map]

self.mapView.wrapAround = YES;
}

that works without issue. then I add my tiled service like so:

#define kBaseMapMapServiceURL @"http://services.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer"
...

- (void)viewDidLoad {
    [super viewDidLoad];    
    //assign the layer delegate. 
 self.mapView.layerDelegate = self;
    //add the base map. 
 NSURL *mapUrl = [NSURL URLWithString:kBaseMapMapServiceURL];
 self.baseMapLayer = [AGSTiledMapServiceLayer tiledMapServiceLayerWithURL:mapUrl];
 [self.mapView addMapLayer:self.baseMapLayer withName:@Base Map]
    
    
    NSURL *mapUrl3 = [NSURL URLWithString:{myServiceURL}];
 AGSTiledMapServiceLayer *Lyr3 = [AGSTiledMapServiceLayer tiledMapServiceLayerWithURL:mapUrl3];
 [self.mapView addMapLayer:Lyr3 withName:@MyService];   

self.mapView.wrapAround = YES;
}

this no longer wraps around. I have also tried making my service the basemap service and same issue.

NimeshJarecha

So it seems that your tiled layer is not meeting the criteria of being wrap around. Can you please attach a text file of your tiled layer JSON so I can have a look at it? You can get it like this..http://services.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer?f=pjson

Regards,
Nimesh

LukePhilips

See attached, I've removed the layers in the arrays to make this more reasonable.

tiledMap_json.txt.zip

NimeshJarecha

Thanks for the file. You can see that the full extent of your tiled layer is...

Full Extent:
XMin: -20036554.6687116
YMin: -30240971.9583863
XMax: 20037164.0316042
YMax: 30240971.9583862
Spatial Reference: 102100 (3857)

The full extent of the ESRI web mercator map is...

Full Extent:
XMin: -20037507.0671618
YMin: -19971868.8804086
XMax: 20037507.0671618
YMax: 19971868.8804086
Spatial Reference: 102100 (3857)

This is the reason why wrap around is not working for your layer. Please correct that and it should work!

Regards,
Nimesh

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