--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/djol/DistanceMeasureTool.js	Mon Aug 21 17:47:00 2017 +0300
@@ -0,0 +1,63 @@
+define([
+    "dojo/_base/declare",
+    "implab/safe",
+    "./MeasureToolBase",
+    "implab/text/format",
+    "dojo/i18n!./format/nls/units",
+    "ol" ],
+
+function(declare, safe, MeasureToolBase, format, units, ol) {
+    return declare([ MeasureToolBase ], {
+
+        isGeodesic : true,
+
+        units : 'metric',
+        
+        constructor : function(opts) {
+            if (opts)
+                safe.mixin(this,opts,["isGeodesic", "units"]);
+        },
+
+        _createDraw : function(source) {
+            return new ol.interaction.Draw(
+                {
+                    source : source,
+                    type : "LineString",
+                    style : this.drawStyle
+                });
+        },
+
+        _formatTooltip : function(sketch, proj) {
+            var length = 0;
+            if (this.isGeodesic) {
+                var points = sketch.getGeometry().getCoordinates();
+                var t = ol.proj.getTransform(proj, "EPSG:4326");
+                for (var i = 0; i < points.length - 1; i++) {
+                    length += this.wgs84Sphere.haversineDistance(
+                        t(points[i]),
+                        t(points[i + 1]));
+                }
+            } else {
+                length = sketch.getGeometry().getLength();
+            }
+
+            var mpu, unitName;
+            switch (this.units) {
+                case "nautical":
+                    mpu = 1852;
+                    unitName = units.nmiles;
+                    break;
+                default:
+                    mpu = 1000;
+                    unitName = units.kilometers;
+            }
+
+            if (length >= mpu) {
+                return format("{0:#.0#}{1}", length / mpu, unitName);
+            } else {
+                return format("{0:#0.0#}{1}", length, units.meters);
+            }
+        }
+
+    });
+});
\ No newline at end of file