Merge pull request #161 from klausw-g/is-series-locked

[dygraphs.git] / dygraph-tickers.js

diff --git a/dygraph-tickers.js b/dygraph-tickers.js
index 41e60e4..dada4cd 100644 (file)
--- a/dygraph-tickers.js
+++ b/dygraph-tickers.js
@@ -71,6 +71,15 @@ Dygraph.numericLinearTicks = function(a, b, pixels, opts, 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;
@@ -138,9 +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++) {
@@ -168,6 +177,7 @@ 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", "Q" ];
@@ -175,7 +185,8 @@ Dygraph.numericTicks = function(a, b, pixels, opts, dygraph, vals) {
   if (opts("labelsKMG2")) {
     if (k) Dygraph.warn("Setting both labelsKMB and labelsKMG2. Pick one!");
     k = 1024;
-    k_labels = [ "k", "M", "G", "T", "P", "E" ];
+    k_labels = [ "k", "M", "G", "T", "P", "E", "Z", "Y" ];
+    m_labels = [ "m", "u", "n", "p", "f", "a", "z", "y" ];
   }
 
   var formatter = opts('axisLabelFormatter');
@@ -190,7 +201,7 @@ 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 = Math.pow(k, k_labels.length);
+      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')) +
@@ -199,6 +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;
   }
 
@@ -331,6 +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);