[TASK] Configure displayed map with rectangle

README.md

@@ -159,21 +159,23 @@ Start a time range to put this mapLayer on first position.
 
 End a time range for first map. Stops sort this mapLayer.
 
-## fixedCenter (array, optional)
+## fixedCenter (array[array, array])
 
-This option allows to fix the map at one specific coordinate depending on following case-sensitive parameters:
-
-- `lat` latitude of the center point
-- `lng` longitude of the center point
-- `radius` visible radius around the center in km
+Choose a rectangle that must be displayed on the map. Set 2 Locations and everything between will displayed.
 
 Examples for `fixedCenter`:
 
-    "fixedCenter": {
-      "lat": 50.80,
-      "lng": 12.07,
-      "radius": 30
-    }
+      // Set a visible frame
+      "fixedCenter": [
+        [
+          49.3522,
+          11.7752
+        ],
+        [
+          48.7480,
+          12.8917
+        ]
+      ],
 
 ## nodeInfos (array, optional)
 

config.json

@@ -99,11 +99,19 @@
       }
     }
   ],
-  "fixedCenter": {
-    "lat": 49.01722,
-    "lng": 12.0969,
-    "radius": 45
-  },
+  // Set a visible frame
+  "fixedCenter": [
+    // Northwest
+    [
+      49.3522,
+      11.7752
+    ],
+    // Southeast
+    [
+      48.7480,
+      12.8917
+    ]
+  ],
   "siteNames": [
     {
       "site": "ffrgb-bat15",

lib/map.js

@@ -154,7 +154,6 @@ define(['map/clientlayer', 'map/labelslayer',
 
     return function (config, linkScale, sidebar, router, buttons) {
       var self = this;
-      var barycenter;
       var groupOnline;
       var groupOffline;
       var groupNew;
@@ -345,9 +344,7 @@ define(['map/clientlayer', 'map/labelslayer',
       }
 
       function resetZoom() {
-        if (barycenter) {
-          setView(barycenter.getBounds());
-        }
+        setView(config.fixedCenter);
       }
 
       function goto(m) {
@@ -431,12 +428,6 @@ define(['map/clientlayer', 'map/labelslayer',
         var lines = addLinksToMap(linkDict, linkScale, data.graph.links, router);
         groupLines = L.featureGroup(lines).addTo(map);
 
-        if (typeof config.fixedCenter === 'undefined') {
-          console.error('FixedCenter is required');
-        } else {
-          barycenter = L.circle(L.latLng(new L.LatLng(config.fixedCenter.lat, config.fixedCenter.lng)), config.fixedCenter.radius * 1000);
-        }
-
         var nodesOnline = helper.subtract(data.nodes.all.filter(helper.online), data.nodes.new);
         var nodesOffline = helper.subtract(data.nodes.all.filter(helper.offline), data.nodes.lost);