topic Re: Inconsistent behavior with zoomToEnvelope method in ArcGIS Runtime SDK for iOS Questions

Inconsistent behavior with zoomToEnvelope method

JamesRichards1 — Tue, 11 May 2010 04:41:54 GMT

Hi,

I've been experimenting with the iPhone SDK and noticed an inconsistent behavior with the zoomToEnvelope method.

I created an app with a simple map and a button that calls zoomToEnvelope. This works as expected the first time. Then I panned the map away from the envelope, and clicked the button again. Nothing happened, the map does not zoom to the envelope. Then I pinch zoomed in or out and clicked the button again. This time it worked. I confirmed that the function was being called each time through log messages and stepping through in the debugger.

I played around with this quite a bit, and it seems that zoomToEnvelope does not work unless the current scale of the map is different than the target scale of the new envelope.

I've observed this behavior in both the Simulator and on my iPod Touch device. I am using the latest beta of the ArcGIS iPhone SDK and OS version 3.1.3.

Is this the expected behavior or a possible bug?

Thanks!

James

Re: Inconsistent behavior with zoomToEnvelope method

ChanceYohman — Tue, 11 May 2010 14:49:25 GMT

Could you attach your source code?

Re: Inconsistent behavior with zoomToEnvelope method

JamesRichards1 — Tue, 11 May 2010 15:16:30 GMT

Here is the source code. The Locate button in the lower left is the one to try. It fires the showLocation method in MyFirstMapAppViewController.m. Let me know if you have any further questions.

Thanks!

James

Re: Inconsistent behavior with zoomToEnvelope method

DiveshGoyal — Mon, 17 May 2010 17:02:19 GMT

Thanks for reporting this. We'll look into it.

_
Divesh

Re: Inconsistent behavior with zoomToEnvelope method

JamesRichards1 — Mon, 17 May 2010 18:01:50 GMT

Thanks Divesh. Please let us know what you find out.