Determine is user is outside polygon area with Apple Maps

Question

Is there any possibility to determine whether a user is inside or outside of a polygon area that I have marked on the map?

I would like to trigger an event if the user goes outside the area (only within the app, so no need for region monitoring)

https://stackoverflow.com/questions/10109677/detect-if-a-point-is-inside-a-mkpolygon-overlay ? — Larme, Feb 22 '18 at 13:18
https://stackoverflow.com/a/45371796/7653367 - Here's one answer in swift — Jacob Ahlberg, Apr 17 '18 at 07:29

score 1 · Answer 1 · answered Feb 22 '18 at 13:24

1

I was having the same problem on Android a while back.

I don't think this functionality is provided by IOS either, so you will have to find a way of making a custom function involving this:

Point In Polygon Algorithm

answered Feb 22 '18 at 13:24

Nerdy Bunz

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score 0 · Accepted Answer · answered Apr 17 '18 at 07:35

I found the solution here: - This takes a MKPolygon (which is important in this manner, since we can then know that the area is closed. So this is not possible to do if you make multiple polylines, since there is no good way of saying that they are connected to each other.

Determine is user is outside polygon area with Apple Maps

2 Answers2