initial commit

js/plugin/Elevation.js

@@ -0,0 +1,35 @@
+BR.Elevation = L.Control.Elevation.extend({
+    options: {
+        position: "leftpane",
+        width: 385,
+        margins: {
+            top: 20,
+            right: 20,
+            bottom: 30,
+            left: 50
+        },
+        theme: "steelblue-theme" //purple
+    },
+
+    clear: function() {
+        this._data = [];
+        this._dist = 0;
+        this._maxElevation = 0;
+
+        // workaround for 'Error: Problem parsing d=""' in Webkit when empty data
+        // https://groups.google.com/d/msg/d3-js/7rFxpXKXFhI/HzIO_NPeDuMJ
+        //this._areapath.datum(this._data).attr("d", this._area);
+        this._areapath.attr("d", "M0 0");
+
+        this._x.domain([0,1]);
+        this._y.domain([0,1]);
+        this._updateAxis();
+    },
+
+    update: function(track) {
+        this.clear();
+        if (track && track.getLatLngs().length > 0) {
+            this.addData(track);
+        }
+    }
+});