topic Re: Locate widget with useTracking option true in ArcGIS JavaScript Maps SDK Questions

Locate widget with useTracking option true

BhavinSanghani — Thu, 19 May 2016 17:47:44 GMT

Has anyone tried Locate widget with useTracking: true option?

I want to see the symbol is moving on the map when someone is moving around. How can we test this scenario of location monitoring?

Re: Locate widget with useTracking option true

RickeyFight — Thu, 19 May 2016 18:09:20 GMT

Yes,

I have used used Tracking: true.

This is helpful when using routing. That way a user can follow themselves.

If I am understanding you right you want to track someone location from another lcoation?

Without doing a lot of set up you can use esri workforce (beta)

Workforce for ArcGIS

Re: Locate widget with useTracking option true

BhavinSanghani — Thu, 19 May 2016 18:36:10 GMT

Yes, that is correct! I want to show position on the map when person is travelling from one location to another location and see if the symbol is moving as well.

I understand that this is handled automatically with tracking: true option. But how can we test? I have noticed sometimes scale issues like map extent is setup very low (around 100 scale).

Did you use any emulator? I tried in Google Chrome emulator where we can emulate longitude/latitude. But can't emulate tracking.

Re: Locate widget with useTracking option true

BhavinSanghani — Thu, 19 May 2016 18:38:13 GMT

BTW, thanks for sharing Workforce for ArcGIS solution. I implement tracking functionality in our product. So, I guess integration may not work with this product.

Re: Locate widget with useTracking option true

RickeyFight — Thu, 19 May 2016 19:16:42 GMT

The easiest solution would be to have someone walk across the street or around the building and see if the point moves.

I have not used an emulator before because I have not needed too.

Re: Locate widget with useTracking option true

BhavinSanghani — Thu, 19 May 2016 19:22:46 GMT

Sure, I understand that. There are few scenarios to verify so, I want somewhat easy way to verify and debug.

Re: Locate widget with useTracking option true

KellyHutchins — Fri, 20 May 2016 00:10:41 GMT

The emulate geolocation coordinates in the Chrome Dev Tools work for me. Just used them to test the Locate Widget with tracking enabled.

Details on the dev tools sensor options: Device Mode Mobile Emulation - Google Chrome

Re: Locate widget with useTracking option true

BhavinSanghani — Fri, 20 May 2016 02:47:06 GMT

Hi Kelly,

Once I enable tracking with emulated geolocation coordinates then the Location widget finds the position as per input. No issues in that. But how to emulate the scenario of moving? Consider as if I am moving in my car from one location to another location and with tracking enabled. I should see the symbol on map also moving. How can I test this scenario from my desktop?

Re: Locate widget with useTracking option true

KellyHutchins — Fri, 20 May 2016 16:16:44 GMT

When I need to test moving I just modify the values in the emulator. When you do so you should see the point move to the new location.

Re: Locate widget with useTracking option true

BhavinSanghani — Fri, 20 May 2016 17:46:29 GMT

Yes, I did the same way. I think, browsers need to provide extra parameters speed and direction in emulator. That would be good test with real time scenario.

Thanks for your help.

Re: Locate widget with useTracking option true

BjornSvensson — Thu, 26 May 2016 17:08:08 GMT

If you want to test in other browsers, or without the chrome emulator, you can use a third party library like in this JSAPI 4.0 sample:

Track coordinate locations | ArcGIS API for JavaScript 4.0

Re: Locate widget with useTracking option true

BhavinSanghani — Thu, 26 May 2016 17:18:37 GMT

Thanks! I was looking for something like this only.