Vsevolod Krasnov vs-krasnov
vs-krasnov
/ dialog_with_setState.dart
Last active
March 31, 2020 07:34
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| import 'package:flutter/material.dart'; | |
| void main() { | |
| runApp(MyApp()); | |
| } | |
| class MyApp extends StatelessWidget { | |
| // This widget is the root of your application. | |
| @override | |
| Widget build(BuildContext context) { |
vs-krasnov
/ geo.kt
Created
November 25, 2018 17:14
Simple function to calculate a new point's latitude and longitude based on provided start point, bearing and distance.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| fun getPointByDistanceAndBearing(lat: Double, lon: Double, bearing: Double, distanceKm: Double): Pair<Double, Double> { | |
| val earthRadius = 6378.1 | |
| val bearingR = Math.toRadians(bearing) | |
| val latR = Math.toRadians(lat) | |
| val lonR = Math.toRadians(lon) | |
| val distanceToRadius = distanceKm / earthRadius |