Re: Geo-fence in Flex/Action Script
Thanks Kevin for your reply, Could you please let me know where can i get the modified version of the code to get accurate distance. Thanks. -- View this message in context: http://apache-flex-development.247.n4.nabble.com/Geo-fence-in-Flex-Action-Script-tp47043p47128.html Sent from the Apache Flex Development mailing list archive at Nabble.com.
Re: Geo-fence in Flex/Action Script
I have been using the ESRI Flex API for mapping in Flex mobile. If you check out the API reference https://developers.arcgis.com/flex/api-reference/ and look at the Polygon class there is a contains method that returns a Boolean value based on whether a mappoint falls within the polygon. It would be fairly easy to get the lat and long from the Air SDK and use the contains method to determine whether the point is within your geofence. -- View this message in context: http://apache-flex-development.247.n4.nabble.com/Geo-fence-in-Flex-Action-Script-tp47043p47127.html Sent from the Apache Flex Development mailing list archive at Nabble.com.
Re: Geo-fence in Flex/Action Script
I don't understand the problem you have. Sending geolocations to your server is quite straightforward. You don't even have to poll since your employees manually click a button to check in no? Your server side script could check if the geolocation which is send from your mobile app is within the geofence coördinates. IMO, you don't have to geofence. When you have the longlat's of your office, you can simply calculate the distance to this coördinate. You need to detect if your employee is within range (circle), not within an specific area (geofence) Dany Op 29-mei-2015, om 10:21 heeft ramu.bandarupalli ramu.bandarupa...@applaudsolutions.com het volgende geschreven: Hi, Thanks for the reply. Actually, we have the requirement like Clock in/Clock out functionality for mobile users thru our applications. Where users can perform these operation only if they are near to the office locations. So, we have to draw Geo-fence around the office location (based on longitude and latitude), Once the user enters into that fence area we will be enabling the above functionality. http://apache-flex-development.247.n4.nabble.com/file/n47121/images.jpg Above is the sample image shows the geo-fence. Thanks. -- View this message in context: http://apache-flex-development.247.n4.nabble.com/Geo-fence-in-Flex-Action-Script-tp47043p47121.html Sent from the Apache Flex Development mailing list archive at Nabble.com.
Re: Geo-fence in Flex/Action Script
There is a nice piece of code[1] that you can utilize to measure distances between coordinates. I used a modified version in my app and it seems to be pretty accurate. If you are just basing your distances from the center point of your office, using the radius of the circle should be pretty straight forward. AIR's access to the gps works good in both Android and iOS. [1]http://snipplr.com/view/58443/ -- View this message in context: http://apache-flex-development.247.n4.nabble.com/Geo-fence-in-Flex-Action-Script-tp47043p47125.html Sent from the Apache Flex Development mailing list archive at Nabble.com.
Re: Geo-fence in Flex/Action Script
From what I understood, you have a latitude and a longitude point which serves as a center. And now you want to draw a circle (of some radius) around it. If its for iOS, there is an ANE: https://code.google.com/p/nativemaps-ane/ You can add poly lines over the map based on lat and lngs. To draw the circle, you need to get circumference lt,lng points based on center. This might help you: http://stackoverflow.com/questions/17010464/draw-circle-using-latitude-and-longitude http://www.geocodezip.com/v3_polygon_example_donut.html On Fri, May 29, 2015 at 1:51 PM, ramu.bandarupalli ramu.bandarupa...@applaudsolutions.com wrote: Hi, Thanks for the reply. Actually, we have the requirement like Clock in/Clock out functionality for mobile users thru our applications. Where users can perform these operation only if they are near to the office locations. So, we have to draw Geo-fence around the office location (based on longitude and latitude), Once the user enters into that fence area we will be enabling the above functionality. http://apache-flex-development.247.n4.nabble.com/file/n47121/images.jpg Above is the sample image shows the geo-fence. Thanks. -- View this message in context: http://apache-flex-development.247.n4.nabble.com/Geo-fence-in-Flex-Action-Script-tp47043p47121.html Sent from the Apache Flex Development mailing list archive at Nabble.com.
Re: Geo-fence in Flex/Action Script
On 29/05/15 13:08, ramu.bandarupalli wrote: Could you please let me know where can i get the modified version of the code to get accurate distance. I've implemented http://en.wikipedia.org/wiki/Great-circle_distance#Computational_formulas in several languages over the years. It's fairly obvious if you've got it wrong because you get an answer in light years or something. Tom
Re: Geo-fence in Flex/Action Script
I just had another thought. You will have to take into account for the inaccuracy reading reported by the device. The best reading that I ever get from my iPhone is plus/minus 16 feet, and that is on a good day with no clouds or rain, standing outside of my vehicle with direct line of sight to the sky. -- View this message in context: http://apache-flex-development.247.n4.nabble.com/Geo-fence-in-Flex-Action-Script-tp47043p47133.html Sent from the Apache Flex Development mailing list archive at Nabble.com.
Re: Geo-fence in Flex/Action Script
A good GPS API (including the ones available in AIR) will tell you the current inaccuracies. If you have it set to low resolution, it is often 1600 ft (it takes the measurements from the towers). -Nick On Fri, May 29, 2015 at 11:07 AM, kevin.godell kevin.god...@gmail.com wrote: I just had another thought. You will have to take into account for the inaccuracy reading reported by the device. The best reading that I ever get from my iPhone is plus/minus 16 feet, and that is on a good day with no clouds or rain, standing outside of my vehicle with direct line of sight to the sky. -- View this message in context: http://apache-flex-development.247.n4.nabble.com/Geo-fence-in-Flex-Action-Script-tp47043p47133.html Sent from the Apache Flex Development mailing list archive at Nabble.com.
Re: Geo-fence in Flex/Action Script
What exactly are you struggling with ? I've never had to access the GPS from Flex, but it should be straight forward to follow something like : http://www.adobe.com/devnet/air/quick_start_as/quickstarts/qs_as_geolocation_api.html Many databases then offer native co-ordinate operations, failing that the maths for finding if a point is in a polygon is easy enough to locate I'd have thought ? Tom On 28/05/15 14:15, ramu.bandarupalli wrote: Hi, We have the requirement to develop Geo-fence on mobile devices based on lang, lat positions. Could you please, any one help me on how to develop the Geo-fence in Apache Flex/Action Script. Thanks in advance. -- View this message in context: http://apache-flex-development.247.n4.nabble.com/Geo-fence-in-Flex-Action-Script-tp47043.html Sent from the Apache Flex Development mailing list archive at Nabble.com. __ This email has been scanned by the Symantec Email Security.cloud service. For more information please visit http://www.symanteccloud.com __
