Closed giaur500 closed 4 years ago
Hi,
I have no idea how to implement the package you suggested. City boundary is also not supported by google map.
In addition, your usecase is a very case-specific task and thus I suggest you to fork the project and implement on your end. You can also implement your forked repo into your project using pubspec.yaml.
I am sorry that I cloud not help you with your case.
Actually, implementation is pretty easy in my opinion. All you need is to draw geojson (Google Maps plugin supports polygons and other shapes drawing) and when user pick location, check whenever latitude/longitude is inside polygon (from geojson) or not. That has nothing to do with Google Map, only geojson feature parsing. To be more specific I have boundary geojson by myself, as string, only need to draw it and deternine if chosen location is inside polygon or not.
Well, that may look as case specific, but still, you should consider some kind of restrictions allowed area.
I think I will need to fork your plugin then to add these features.
I have managed to fork it and add following functionalities:
geojson_vi
and geodesy
libraries have been used to parse/draw geojson and determine if selected location is inside allowed area or not.
I think I can create PR, but my fork is based on older version. The trick is to extract shape from geojson string and generate polyline, which is supported by Google Maps, then draw it.
I have city area defined as geojson. I need to restrict available area to my city only and show message when user tries to pick address outside city area. City boundary should also be visible on map to get user to know about suppoeted area.
My proposal:
Might be useful: https://pub.dev/packages/geojson