Added license

Author: akhenry

platform/commonUI/formats/bundle.js

@@ -61,6 +61,17 @@ define([
                     "key": "DEFAULT_TIME_FORMAT",
                     "value": "utc"
                 }
+            ],
+            "licenses": [
+                {
+                    "name": "d3",
+                    "version": "3.0.0",
+                    "description": "Incorporates modified code from d3 Time Scales",
+                    "author": "Mike Bostock",
+                    "copyright": "Copyright 2010-2016 Mike Bostock. " +
+                    "All rights reserved.",
+                    "link": "https://github.com/d3/d3/blob/master/LICENSE"
+                }
             ]
         }
     });

platform/commonUI/formats/src/UTCTimeFormat.js

@@ -41,6 +41,12 @@ define([
         DAYS = 24 * HOURS,
         MONTHS = (365 / 12) * DAYS;
 
+    /**
+     * @typedef Scale
+     * @property {number} min the minimum scale value, in ms
+     * @property {number} max the maximum scale value, in ms
+     */
+
     /**
      * Formatter for UTC timestamps. Interprets numeric values as
      * milliseconds since the start of 1970.
@@ -57,42 +63,43 @@ define([
      * the threshold required.
      * @private
      */
-    function getScaledFormat (d, threshold) {
-        //Adapted from D3 formatting rules
-        if (!(d instanceof Date)){
-            d = new Date(moment.utc(d));
-        }
+    function getScaledFormat (d) {
+        var m = moment.utc(d);
+        /**
+         * Uses logic from d3 Time-Scales, v3 of the API. See
+         * https://github.com/d3/d3-3.x-api-reference/blob/master/Time-Scales.md
+         *
+         * Licensed
+         */
         return [
-            [".SSS", function(d) { return d.getMilliseconds() >= threshold; }],
-            [":ss", function(d) { return d.getSeconds() * SECONDS >= threshold; }],
-            ["HH:mm", function(d) { return d.getMinutes() * MINUTES >= threshold; }],
-            ["HH", function(d) { return d.getHours() * HOURS >= threshold; }],
-            ["ddd DD", function(d) {
-                return d.getDay() * DAYS >= threshold &&
-                    d.getDate() != 1;
+            [".SSS", function(m) { return m.milliseconds(); }],
+            [":ss", function(m) { return m.seconds(); }],
+            ["HH:mm", function(m) { return m.minutes(); }],
+            ["HH", function(m) { return m.hours(); }],
+            ["ddd DD", function(m) {
+                return m.days() &&
+                    m.date() != 1;
             }],
-            ["MMM DD", function(d) { return d.getDate() != 1; }],
-            ["MMMM", function(d) {
-                return d.getMonth() * MONTHS >= threshold;
+            ["MMM DD", function(m) { return m.date() != 1; }],
+            ["MMMM", function(m) {
+                return m.month();
             }],
             ["YYYY", function() { return true; }]
         ].filter(function (row){
-            return row[1](d);
+            return row[1](m);
         })[0][0];
     };
 
     /**
      *
      * @param value
-     * @param {number} [threshold] Optionally provides context to the
-     * format request, allowing for scale-appropriate formatting. This value
-     * should be the minimum unit to be represented by this format, in ms. For
-     * example, to display seconds, a threshold of 1 * 1000 should be provided.
+     * @param {Scale} [scale] Optionally provides context to the
+     * format request, allowing for scale-appropriate formatting.
      * @returns {string} the formatted date
      */
-    UTCTimeFormat.prototype.format = function (value, threshold) {
-        if (threshold !== undefined){
-            var scaledFormat = getScaledFormat(value, threshold);
+    UTCTimeFormat.prototype.format = function (value, scale) {
+        if (scale !== undefined){
+            var scaledFormat = getScaledFormat(value, scale);
             if (scaledFormat) {
                 return moment.utc(value).format(scaledFormat);
             }

platform/features/conductor-v2/src/ui/MctConductorAxis.js

@@ -57,39 +57,23 @@ define(
                     axisElement.call(xAxis);
                 }
 
-                // Calculates the precision of date for formatting. Relies on
-                // D3's behavior to tick on round units
-                function threshold(date){
-                    var ms = date.getTime();
-                    return [
-                        365 * 24 * 60 * 60 * 1000,          // years
-                        (365 / 12) * 24 * 60 * 60 * 1000,   // months
-                        7 * 24 * 60 * 60 * 1000,            // weeks
-                        24 * 60 * 60 * 1000,                // days
-                        60 * 60 * 1000,                     // hours
-                        60 * 1000,                          // minutes
-                        1000,                               // seconds
-                        1                                   // ms
-                    ].filter(function (boundary) {
-                        return ms % boundary === 0;
-                    })[0];
-                }
-
                 function changeTimeSystem(timeSystem) {
                     var key = timeSystem.formats()[0];
                     if (key !== undefined) {
                         var format =  formatService.getFormat(key);
+                        var b = conductor.bounds();
 
                         //Define a custom format function
                         xAxis.tickFormat(function (date) {
-                            return format.format(date, threshold(date));
+                            return format.format(date, {min: b.start, max: b.end});
                         });
                         axisElement.call(xAxis);
                     }
                 }
 
                 scope.resize = function () {
-                    setScale(conductor.bounds().start, conductor.bounds().end);
+                    var b = conductor.bounds();
+                    setScale(b.start, b.end);
                 };
 
                 conductor.on('timeSystem', changeTimeSystem);
@@ -98,9 +82,9 @@ define(
                 conductor.on('bounds', function (bounds) {
                     setScale(bounds.start, bounds.end);
                 });
-
                 //Set initial scale.
-                setScale(conductor.bounds().start, conductor.bounds().end);
+                var bounds = conductor.bounds();
+                setScale(bounds.start, bounds.end);
 
                 if (conductor.timeSystem() !== undefined) {
                     changeTimeSystem(conductor.timeSystem());