X-Git-Url: https://adrianiainlam.tk/git/?a=blobdiff_plain;f=dygraph-tickers.js;h=dada4cdc788aa8d4bd67b9cbdcae186335f9187d;hb=16f00742bcc437c9acb34507d41600d976fd79d9;hp=46fe765d409324b2d2200556ae46f8754b314944;hpb=758a629f806fa73483f730fb343013acd0ace078;p=dygraphs.git

diff --git a/dygraph-tickers.js b/dygraph-tickers.js
index 46fe765..dada4cd 100644
--- a/dygraph-tickers.js
+++ b/dygraph-tickers.js
@@ -62,7 +62,24 @@
 /*global Dygraph:false */
 "use strict";
 
+Dygraph.numericLinearTicks = function(a, b, pixels, opts, dygraph, vals) {
+  var nonLogscaleOpts = function(opt) {
+    if (opt === 'logscale') return false;
+    return opts(opt);
+  };
+  return Dygraph.numericTicks(a, b, pixels, nonLogscaleOpts, dygraph, vals);
+};
+
 Dygraph.numericTicks = function(a, b, pixels, opts, dygraph, vals) {
+  // This masks some numeric issues in older versions of Firefox,
+  // where 1.0/Math.pow(10,2) != Math.pow(10,-2).
+  var pow = function(base, exp) {
+    if (exp < 0) {
+      return 1.0 / Math.pow(base, -exp);
+    }
+    return Math.pow(base, exp);
+  };
+
   var pixels_per_tick = opts('pixelsPerLabel');
   var ticks = [];
   var i, j, tickV, nTicks;
@@ -130,9 +147,9 @@ Dygraph.numericTicks = function(a, b, pixels, opts, dygraph, vals) {
       for (i = -10; i < 50; i++) {
         var base_scale;
         if (kmg2) {
-          base_scale = Math.pow(16, i);
+          base_scale = pow(16, i);
         } else {
-          base_scale = Math.pow(10, i);
+          base_scale = pow(10, i);
         }
         var spacing = 0;
         for (j = 0; j < mults.length; j++) {
@@ -160,14 +177,16 @@ Dygraph.numericTicks = function(a, b, pixels, opts, dygraph, vals) {
   // Add formatted labels to the ticks.
   var k;
   var k_labels = [];
+  var m_labels = [];
   if (opts("labelsKMB")) {
     k = 1000;
-    k_labels = [ "K", "M", "B", "T" ];
+    k_labels = [ "K", "M", "B", "T", "Q" ];
   }
   if (opts("labelsKMG2")) {
     if (k) Dygraph.warn("Setting both labelsKMB and labelsKMG2. Pick one!");
     k = 1024;
-    k_labels = [ "k", "M", "G", "T" ];
+    k_labels = [ "k", "M", "G", "T", "P", "E", "Z", "Y" ];
+    m_labels = [ "m", "u", "n", "p", "f", "a", "z", "y" ];
   }
 
   var formatter = opts('axisLabelFormatter');
@@ -182,8 +201,8 @@ Dygraph.numericTicks = function(a, b, pixels, opts, dygraph, vals) {
     if (k_labels.length > 0) {
       // TODO(danvk): should this be integrated into the axisLabelFormatter?
       // Round up to an appropriate unit.
-      var n = k*k*k*k;
-      for (j = 3; j >= 0; j--, n /= k) {
+      var n = pow(k, k_labels.length);
+      for (j = k_labels.length - 1; j >= 0; j--, n /= k) {
         if (absTickV >= n) {
           label = Dygraph.round_(tickV / n, opts('digitsAfterDecimal')) +
               k_labels[j];
@@ -191,6 +210,19 @@ Dygraph.numericTicks = function(a, b, pixels, opts, dygraph, vals) {
         }
       }
     }
+    if(opts("labelsKMG2")){
+      tickV = String(tickV.toExponential());
+      if(tickV.split('e-').length === 2 && tickV.split('e-')[1] >= 3 && tickV.split('e-')[1] <= 24){
+        if(tickV.split('e-')[1] % 3 > 0) {
+          label = Dygraph.round_(tickV.split('e-')[0] /
+              pow(10,(tickV.split('e-')[1] % 3)),
+              opts('digitsAfterDecimal'));
+        } else {
+          label = Number(tickV.split('e-')[0]).toFixed(2);
+        }
+        label += m_labels[Math.floor(tickV.split('e-')[1] / 3) - 1];
+      }
+    }
     ticks[i].label = label;
   }
 
@@ -199,15 +231,7 @@ Dygraph.numericTicks = function(a, b, pixels, opts, dygraph, vals) {
 
 
 Dygraph.dateTicker = function(a, b, pixels, opts, dygraph, vals) {
-  var pixels_per_tick = opts('pixelsPerLabel');
-  var chosen = -1;
-  for (var i = 0; i < Dygraph.NUM_GRANULARITIES; i++) {
-    var num_ticks = Dygraph.numDateTicks(a, b, i);
-    if (pixels / num_ticks >= pixels_per_tick) {
-      chosen = i;
-      break;
-    }
-  }
+  var chosen = Dygraph.pickDateTickGranularity(a, b, pixels, opts);
 
   if (chosen >= 0) {
     return Dygraph.getDateAxis(a, b, chosen, opts, dygraph);
@@ -277,6 +301,27 @@ Dygraph.PREFERRED_LOG_TICK_VALUES = function() {
   return vals;
 }();
 
+/**
+ * Determine the correct granularity of ticks on a date axis.
+ *
+ * @param {Number} a Left edge of the chart (ms)
+ * @param {Number} b Right edge of the chart (ms)
+ * @param {Number} pixels Size of the chart in the relevant dimension (width).
+ * @param {Function} opts Function mapping from option name -> value.
+ * @return {Number} The appropriate axis granularity for this chart. See the
+ * enumeration of possible values in dygraph-tickers.js.
+ */
+Dygraph.pickDateTickGranularity = function(a, b, pixels, opts) {
+  var pixels_per_tick = opts('pixelsPerLabel');
+  for (var i = 0; i < Dygraph.NUM_GRANULARITIES; i++) {
+    var num_ticks = Dygraph.numDateTicks(a, b, i);
+    if (pixels / num_ticks >= pixels_per_tick) {
+      return i;
+    }
+  }
+  return -1;
+};
+
 Dygraph.numDateTicks = function(start_time, end_time, granularity) {
   if (granularity < Dygraph.MONTHLY) {
     // Generate one tick mark for every fixed interval of time.
@@ -310,6 +355,7 @@ Dygraph.getDateAxis = function(start_time, end_time, granularity, opts, dg) {
     // for this granularity.
     var g = spacing / 1000;
     var d = new Date(start_time);
+    d.setMilliseconds(0);
     var x;
     if (g <= 60) {  // seconds
       x = d.getSeconds(); d.setSeconds(x - x % g);