# \[Solved\] How to login with maps

**URL:** <https://community.thunkable.com/t/solved-how-to-login-with-maps/325371>\
**Category:** Questions about Thunkable X\
**Tags:** solved, beginner\
**Created:** [November 18, 2019, 6:32am UTC](https://community.thunkable.com/t/solved-how-to-login-with-maps/325371 "2019-11-18T06:32:10Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Buankp](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/buankp/32/82714_2.png) [@Buankp](https://community.thunkable.com/u/Buankp)\
**Post date:** [November 18, 2019, 6:32am UTC](https://community.thunkable.com/t/solved-how-to-login-with-maps/325371/1 "2019-11-18T06:32:10Z")

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hi my name is buank.p, I just started on thunkabel, now I want to log in with the maps or location that I have made, when the user starts the app he will automatically log in when the location or maps match what is specified, but I constrained by the radius maps that I made, maybe anyone can help, I’m very grateful, nice to meet you Buank.p

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**Author:** ![domhnallohanlon](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/domhnallohanlon/32/29554_2.png) [@domhnallohanlon](https://community.thunkable.com/u/domhnallohanlon)\
**Post date:** [November 18, 2019, 5:03pm UTC](https://community.thunkable.com/t/solved-how-to-login-with-maps/325371/2 "2019-11-18T17:03:30Z")

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The first thing I did here was visualise that data that I wanted and the data that I had, so I displayed the target location and sensor data in a label like this:

 ![44](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/e/0/e0aef1f9362f07ddac6fc3e3a6512351df9d6197.png)

In my blocks, `homeLat` and `homeLng` are my location to 8 decimal places (from Google Maps)

 ![47](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/8/6/868262a810600a023fa106699ca2588ae5a70d57.png)

The next thing I need to know was the accuracy of GPS readings…so I Googled it:

 ![32](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/7/a/7a1e72c9d212bde618fd10ca2bea9c55d33f6a4d.png)

Then I coded up a simple test to see if the first 3 decimal places matched:

 ![52](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/2/5/2575fa2831aa2cf2aee41e36b148c9e91b66fba1.png)

To test, I have a walk around outside and found the accuracy to be roughly ± 25 m

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**Author:** ![Buankp](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/buankp/32/82714_2.png) [@Buankp](https://community.thunkable.com/u/Buankp)\
**Post date:** [November 19, 2019, 6:54am UTC](https://community.thunkable.com/t/solved-how-to-login-with-maps/325371/3 "2019-11-19T06:54:39Z")

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thank you, I’ll try

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**Author:** ![ioannis](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/ioannis/32/146956_2.png) [@ioannis](https://community.thunkable.com/u/ioannis)\
**Post date:** [November 8, 2024, 11:46am UTC](https://community.thunkable.com/t/solved-how-to-login-with-maps/325371/4 "2024-11-08T11:46:40Z")

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