bt747 local tiles

--- ../orig/src_j2se/net/sf/bt747/j2se/app/map/MapFactoryInfos.java
+++ src_j2se/net/sf/bt747/j2se/app/map/MapFactoryInfos.java
@@ -45,6 +45,31 @@
                     + y;
         }
     };
+
+    // replace osm cloudmade with local tiles
+    // My tiles were generated by gdal2tiles.pl, which outputs standard TMS that differs from
+    // OSM in that its y coordinate is flipped, see
+    // http://alastaira.wordpress.com/2011/07/06/converting-tms-tile-coordinates-to-googlebingosm-tile-coordinates/
+    public final static MyTileFactoryInfo tfiOSM_OSM_CYCLE_CLOUDMADE = new MyTileFactoryInfo(
+            "local tiles", 2, 18, 19, 256, true, true,
+            "file:///m/pic/slippymap/slippytiles", "x", "y", "z",
+            "Local TMS tiles",
+            "http://www.gdal.org/gdal2tiles.html") {
+        public String getTileUrl(int x, int y, int zoom) {
+            zoom = getTotalMapZoom() - zoom;
+            y = (1 << zoom) - y - 1; // flip y coordinate
+            String url = baseURL + "/" + zoom + "/" + x + "/" + y + ".png";
+            return url;
+        }
+
+        public String getTileBaseKey(int x, int y, int zoom) {
+            zoom = getTotalMapZoom() - zoom;
+            return "" + zoom + File.separatorChar + x + File.separatorChar
+                    + y;
+        }
+    };
+
+/*
     public final static MyTileFactoryInfo tfiOSM_OSM_CYCLE_CLOUDMADE = new MyTileFactoryInfo(
             "osmcycle_cloudmade", 2, 18, 19, 256, true, true,
             "http://andy.sandbox.cloudmade.com/tiles/cycle", "x", "y", "z",
@@ -62,7 +87,8 @@
                     + y;
         }
     };
-
+*/
+
     public final static MyTileFactoryInfo tfiOSM_OSM_CYCLE_THUNDER = new MyTileFactoryInfo(
             "osmcycle_thunder", 4, 18, 19, 256, true, true,
             "http://www.thunderflames.org/tiles/cycle", "x", "y", "z",