text: 
  
  // MAP DATA REQUEST CALCULATORS //////////////////////////////////////
  // Ingress Intel splits up requests for map data (portals, links,
  // fields) into tiles. To get data for the current viewport (i.e. what
  // is currently visible) it first calculates which tiles intersect.
  // For all those tiles, it then calculates the lat/lng bounds of that
  // tile and a quadkey. Both the bounds and the quadkey are “somewhat”
  // required to get complete data. No idea how the projection between
  // lat/lng and tiles works.
  // What follows now are functions that allow conversion between tiles
  // and lat/lng as well as calculating the quad key. The variable names
  // may be misleading.
  // The minified source for this code was in gen_dashboard.js after the
  // “// input 89” line (alternatively: the class was called “Xe”).
  
  window.convertCenterLat = function(centerLat) {
    return Math.round(256 * 0.9999 * Math.abs(1 / Math.cos(centerLat * DEG2RAD)));
  }
  
  window.calculateR = function(convCenterLat) {
    return 1 << window.map.getZoom() - (convCenterLat / 256 - 1);
  }
  
  window.convertLatLngToPoint = function(latlng, magic, R) {
    var x = (magic/2 + latlng.lng * magic / 360)*R;
    var l = Math.sin(latlng.lat * DEG2RAD);
    var y =  (magic/2 + 0.5*Math.log((1+l)/(1-l)) * -(magic / (2*Math.PI)))*R;
    return {x: Math.floor(x/magic), y: Math.floor(y/magic)};
  }
  
  window.convertPointToLatLng = function(x, y, magic, R) {
    var e = {};
    e.sw = {
      // orig function put together from all over the place
      // lat: (2 * Math.atan(Math.exp((((y + 1) * magic / R) - (magic/ 2)) / (-1*(magic / (2 * Math.PI))))) - Math.PI / 2) / (Math.PI / 180),
      // shortened version by your favorite algebra program.
      lat: (360*Math.atan(Math.exp(Math.PI - 2*Math.PI*(y+1)/R)))/Math.PI - 90,
      lng: 360*x/R-180
    };
    e.ne = {
      //lat: (2 * Math.atan(Math.exp(((y * magic / R) - (magic/ 2)) / (-1*(magic / (2 * Math.PI))))) - Math.PI / 2) / (Math.PI / 180),
      lat: (360*Math.atan(Math.exp(Math.PI - 2*Math.PI*y/R)))/Math.PI - 90,
      lng: 360*(x+1)/R-180
    };
    return e;
  }
  
  // calculates the quad key for a given point. The point is not(!) in
  // lat/lng format.
  window.pointToQuadKey = function(x, y) {
    var quadkey = [];
    for(var c = window.map.getZoom(); c > 0; c--) {
      //  +-------+   quadrants are probably ordered like this
      //  | 0 | 1 |
      //  |---|---|
      //  | 2 | 3 |
      //  |---|---|
      var quadrant = 0;
      var e = 1 << c - 1;
      (x & e) != 0 && quadrant++;               // push right
      (y & e) != 0 && (quadrant++, quadrant++); // push down
      quadkey.push(quadrant);
    }
    return quadkey.join("");
  }
  
  // given quadkey and bounds, returns the format as required by the
  // Ingress API to request map data.
  window.generateBoundsParams = function(quadkey, bounds) {
    return {
      id: quadkey,
      qk: quadkey,
      minLatE6: Math.round(bounds.sw.lat * 1E6),
      minLngE6: Math.round(bounds.sw.lng * 1E6),
      maxLatE6: Math.round(bounds.ne.lat * 1E6),
      maxLngE6: Math.round(bounds.ne.lng * 1E6)
    };
  }
  