code: function addBoundingBox(requestData, rectangle) {
    requestData["box"] = {
      minLat: CesiumMath.toDegrees(rectangle.south),
      maxLon: CesiumMath.toDegrees(rectangle.east),
      maxLat: CesiumMath.toDegrees(rectangle.north),
      minLon: CesiumMath.toDegrees(rectangle.west)
    };
  }
docs: Adds a bounding box filter to the search query for elastic search. This simply modifies requestData and returns nothing.
  
  @param {object} requestData Request data to modify
  @param {Rectangle} rectangle rectangle to source the bounding box from.