coordinates of the polygon are computed properly when the polygon cross -180...

coordinates of the polygon are computed properly when the polygon cross -180 degres (due to world map being not flat)

frontend-js/src/main/js/map/canvas/MapCanvas.js

@@ -360,10 +360,15 @@ MapCanvas.prototype.latLngToPoint = function (latLng) {
  * @returns {string}
  */
 MapCanvas.prototype.pointsToString = function (points) {
+  var self = this;
   var result = "";
   for (var i = 0; i < points.length; i++) {
     var point = points[i];
-    result += point.x.toFixed(2) + "," + point.y.toFixed(2) + ";";
+    var x = point.x;
+    if (x >= self.getOptions().width * 2) {
+      x -= 360 * self.pixelsPerLonDegree_ * self.zoomFactor;
+    }
+    result += x.toFixed(2) + "," + point.y.toFixed(2) + ";";
   }
   return result;
 };

frontend-js/src/test/js/map/canvas/MapCanvas-test.js

@@ -47,6 +47,18 @@ describe('MapCanvas', function () {
       assert.ok(result.indexOf("15") >= 0);
       assert.ok(result.indexOf("17") >= 0);
     });
+
+    it("exceeded values", function () {
+
+      var canvas = new MapCanvas(testDiv, {
+        tileSize: 256,
+        minZoom: 2,
+        height: 600,
+        width: 800
+      });
+      var result = canvas.pointsToString([new Point(2000, 10), new Point(12, 15)]);
+      assert.ok(result.indexOf("2000") === -1);
+    });
   });
 
 });