find circomference points from center coordinate

cercomfrance_coord.dart

import 'dart:math';

/// generate coordnates for cercomfrance

void main(){

  var radius = 100.0 ;
  var centerLat = 25.756037 ;
  var centerLon = 55.969354 ;

  var points = 10 ;

  var circlePoints = [];


  for(var i = 1 ; i < points ; i ++ ){

    var angle = pi * 2 * i / points ;

    var dx = radius * cos(angle);
    var dy = radius * sin(angle);

    var point = {
      'lat' : centerLat + (180 / pi ) * (dy / 6378137) ,
      'long' : centerLon + (180/pi)* (dx / 6378137) / cos(centerLat * pi / 180 )
    };

    circlePoints.add(point);
  }

  circlePoints.forEach(print);

}