Hi I am working on app in which i want to know if the user is inside the polygon or not. kinly help with the code.
thank you
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I'm using google_maps_utils plugin to check the given location is inside the polygon or not. Also this plugin provides other use-full utils as well
Ajantha Bandara
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I just want to know how to pass the current location to the polyutils.containslocationpoly(). – Awais Ghani Bangash Aug 11 '21 at 15:54
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Can you please paste the exact code that you have? – Awais Ghani Bangash Aug 11 '21 at 16:28
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You can use the maps_toolkit package's PolygonUtil.containsLocation method to do check if a particular point is in a polygon.
Here's a sample code:
LatLng point = LatLng(37.4221, 122.0841);
List<LatLng> polygonPoints = [LatLng(14.4, 12.0), LatLng(50.9, 70.56), LatLng(45.3, 130.0)];
bool geodesic = true;
PolygonUtil.containsLocation(point, polygonPoints, geodesic);
For the geodesic property above,
The polygon is formed of great circle segments if geodesic is true, and of rhumb (loxodromic) segments otherwise.
Victor Eronmosele
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I have tried this but unfortunately it's not working I have passed the list of latlng and that point but It is giving me an error. – Awais Ghani Bangash Aug 11 '21 at 15:29
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Undefined name 'PolygonUtil'. Try correcting the name to one that is defined, or defining the name. – Awais Ghani Bangash Aug 11 '21 at 16:17
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You need to import the package, by adding it to your pubspec.yaml file and adding this line: `import 'package:maps_toolkit/maps_toolkit.dart';` to the top of your file. Checkout the installation guide: https://pub.dev/packages/maps_toolkit/install – Victor Eronmosele Aug 11 '21 at 16:31
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This package is actually conflicting with google_map_flatter package it some key words like LatLng – Awais Ghani Bangash Aug 11 '21 at 17:55
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The argument type 'Position?' can't be assigned to the parameter type 'LatLng'. – Awais Ghani Bangash Aug 11 '21 at 17:58
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Can you post the code you have so I try to replicate the error? – Victor Eronmosele Aug 11 '21 at 19:41
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