From 8db4120ec804af20e82cd393056d52ed31cf763f Mon Sep 17 00:00:00 2001
From: Norbert Renner <norbert.renner@gmx.de>
Date: Fri, 7 Sep 2018 12:53:57 +0200
Subject: [PATCH] Add option to configure the default base layer

---
 config.template.js | 3 +++
 js/Map.js          | 8 ++++----
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/config.template.js b/config.template.js
index a5b0a4a..6cdd571 100644
--- a/config.template.js
+++ b/config.template.js
@@ -79,6 +79,9 @@
         //'Mapsforge Tile Server': 'http://localhost:6090/{z}/{x}/{y}.png'
     };
 
+    // Base layer to show on start, as position number in the layer switcher, starting from 0, default is first
+    BR.conf.defaultBaseLayerIndex = 0;
+
     // Initial route line transparency (0-1, overridden by stored slider setting)
     BR.conf.defaultOpacity = 0.67;
 
diff --git a/js/Map.js b/js/Map.js
index 6f2793c..377c080 100644
--- a/js/Map.js
+++ b/js/Map.js
@@ -120,10 +120,10 @@ BR.Map = {
                 overlays[i] = L.tileLayer(BR.conf.overlays[i]);
             }
         }
-        // after applying custom base layer configurations, add first base layer to map
-        var firstLayer = baseLayers[Object.keys(baseLayers)[0]];
-        if (firstLayer) {
-            map.addLayer(firstLayer);
+        // after applying custom base layer configurations, add configured base layer to map
+        var defaultLayer = baseLayers[Object.keys(baseLayers)[BR.conf.defaultBaseLayerIndex || 0]];
+        if (defaultLayer) {
+            map.addLayer(defaultLayer);
         }
 
         layersControl = BR.layersTab(baseLayers, overlays).addTo(map);