Overpass query to use map precision

[rails.git] / app / assets / javascripts / index / query.js

diff --git a/app/assets/javascripts/index/query.js b/app/assets/javascripts/index/query.js
index cb76a3446c1475cac35a637bf3aa98c156c4771c..5c6e5817080efe09680a7dccb2564106efe28713 100644 (file)
--- a/app/assets/javascripts/index/query.js
+++ b/app/assets/javascripts/index/query.js
@@ -1,6 +1,9 @@
 //= require jquery.simulate
+//= require querystring
 
 OSM.Query = function (map) {
+  var querystring = require("querystring-component");
+
   var url = OSM.OVERPASS_URL,
       queryButton = $(".control-query .control-button"),
       uninterestingTags = ["source", "source_ref", "source:ref", "history", "attribution", "created_by", "tiger:county", "tiger:tlid", "tiger:upload_uuid", "KSJ2:curve_id", "KSJ2:lat", "KSJ2:lon", "KSJ2:coordinate", "KSJ2:filename", "note:ja"],
@@ -281,7 +284,11 @@ OSM.Query = function (map) {
   function queryOverpass(lat, lng) {
     var latlng = L.latLng(lat, lng).wrap(),
         bounds = map.getBounds().wrap(),
-        bbox = bounds.getSouth() + "," + bounds.getWest() + "," + bounds.getNorth() + "," + bounds.getEast(),
+        precision = OSM.zoomPrecision(map.getZoom()),
+        bbox = bounds.getSouth().toFixed(precision) + "," +
+               bounds.getWest().toFixed(precision) + "," +
+               bounds.getNorth().toFixed(precision) + "," +
+               bounds.getEast().toFixed(precision),
         radius = 10 * Math.pow(1.5, 19 - map.getZoom()),
         around = "around:" + radius + "," + lat + "," + lng,
         nodes = "node(" + around + ")",
@@ -342,7 +349,7 @@ OSM.Query = function (map) {
   };
 
   page.load = function (path, noCentre) {
-    var params = qs.parse(path.substring(path.indexOf("?") + 1)),
+    var params = querystring.parse(path.substring(path.indexOf("?") + 1)),
         latlng = L.latLng(params.lat, params.lon);
 
     if (!window.location.hash && !noCentre && !map.getBounds().contains(latlng)) {