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  | function fieldSorterOptimized(fields) { | |
| var dir = [], i, l = fields.length; | |
| fields = fields.map(function(o, i) { | |
| if (o[0] === "-") { | |
| dir[i] = -1; | |
| o = o.substring(1); | |
| } else { | |
| dir[i] = 1; | |
| } | |
| return o; | 
  
    
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  | getDistanceFromLatLonInM(lat1, lon1, lat2, lon2) { | |
| var deg2rad = deg => deg * 0.017453293; | |
| var a = | |
| Math.pow(Math.sin(deg2rad(lat2 - lat1) / 2), 2) + | |
| Math.cos(deg2rad(lat1)) * Math.cos(deg2rad(lat2)) * | |
| Math.pow(Math.sin(deg2rad(lon2 - lon1) / 2), 2); | |
| return 12742000 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a)); | |
| } | 
  
    
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  | <!DOCTYPE html> | |
| <div id="app"></div> | |
| <script src="https://code.createjs.com/1.0.0/tweenjs.js"></script> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/pixi.js/5.2.4/pixi.min.js"></script> | |
| <script> | |
| var app = new PIXI.Application({ | |
| width: window.innerWidth, | |
| height: window.innerHeight, | |
| backgroundColor: 0x003300, | |
| resolution: window.devicePixelRatio || 1, |