I will want to check if the customer location(lat long) is inside a polygon(area)

# multiplatform

[Daniel]

I will want to check if the customer location(lat long) is inside a polygon(area)

[Bino]

For a really simple solution, you create a bounding box (your polygon/area) and compare the coordinates like

if (customer.latitude > northWestBounds.latitude && customer.longitude > northWestBounds.longitude)

This comparison needs to take care of the upper-left (NorthWest) and the bottom-right (SouthEast)

There are more complex solutions where the polygon is not rectangular

[Michael Paus]

On the Java platform you can just use the JTS library which does exactly that. There are also implementations for other languages (but not Kotlin, AFAIK) which you could access via expect/actual.

[Derek Ellis]

In addition to some of the libraries that might have been listed in the repo posted in the previous thread, I've implemented this particular function (and a few others) here: https://dellisd.github.io/spatial-k/api/turf/io.github.dellisd.spatialk.turf/boolean-point-in-polygon.html

[Konstantin Tskhovrebov]

as I pointed before there is library Geok

[Daniel]

@Konstantin Tskhovrebov unfortunately library Geok does not work with iOS yet:

[Daniel]

message has been deleted

[Konstantin Tskhovrebov]

Geok supports ios device target

[Konstantin Tskhovrebov]

Write the author to add m1 simulator target