update changes.html to reflect auto_tests

[dygraphs.git] / dygraph.js

diff --git a/dygraph.js b/dygraph.js
index b52a689..045c394 100644 (file)
--- a/dygraph.js
+++ b/dygraph.js
@@ -1842,6 +1842,8 @@ Dygraph.prototype.generateLegendHTML_ = function(x, sel_points, oneEmWidth) {
  */
 Dygraph.prototype.setLegendHTML_ = function(x, sel_points) {
   var labelsDiv = this.attr_("labelsDiv");
+  if (!labelsDiv) return;
+
   var sizeSpan = document.createElement('span');
   // Calculates the width of 1em in pixels for the legend.
   sizeSpan.setAttribute('style', 'margin: 0; padding: 0 0 0 1em; border: 0;');
@@ -2318,6 +2320,26 @@ Dygraph.prototype.gatherDatasets_ = function(rolledSeries, dateWindow) {
     datasets[i] = series;
   }
 
+  // For stacked graphs, a NaN value for any point in the sum should create a
+  // clean gap in the graph. Back-propagate NaNs to all points at this X value.
+  if (this.attr_("stackedGraph")) {
+    for (k = datasets.length - 1; k >= 0; --k) {
+      // Use the first nonempty dataset to get X values.
+      if (!datasets[k]) continue;
+      for (j = 0; j < datasets[k].length; j++) {
+        var x = datasets[k][j][0];
+        if (isNaN(cumulative_y[x])) {
+          // Set all Y values to NaN at that X value.
+          for (i = datasets.length - 1; i >= 0; i--) {
+            if (!datasets[i]) continue;
+            datasets[i][j][1] = NaN;
+          }
+        }
+      }
+      break;
+    }
+  }
+
   return [ datasets, extremes, boundaryIds ];
 };
 
@@ -2873,7 +2895,7 @@ Dygraph.prototype.detectTypeFromString_ = function(str) {
     // TODO(danvk): use Dygraph.numberValueFormatter here?
     /** @private (shut up, jsdoc!) */
     this.attrs_.axes.x.valueFormatter = function(x) { return x; };
-    this.attrs_.axes.x.ticker = Dygraph.numericTicks;
+    this.attrs_.axes.x.ticker = Dygraph.numericLinearTicks;
     this.attrs_.axes.x.axisLabelFormatter = this.attrs_.axes.x.valueFormatter;
   }
 };
@@ -3112,7 +3134,7 @@ Dygraph.prototype.parseArray_ = function(data) {
     /** @private (shut up, jsdoc!) */
     this.attrs_.axes.x.valueFormatter = function(x) { return x; };
     this.attrs_.axes.x.axisLabelFormatter = Dygraph.numberAxisLabelFormatter;
-    this.attrs_.axes.x.ticker = Dygraph.numericTicks;
+    this.attrs_.axes.x.ticker = Dygraph.numericLinearTicks;
     return data;
   }
 };
@@ -3152,7 +3174,7 @@ Dygraph.prototype.parseDataTable_ = function(data) {
   } else if (indepType == 'number') {
     this.attrs_.xValueParser = function(x) { return parseFloat(x); };
     this.attrs_.axes.x.valueFormatter = function(x) { return x; };
-    this.attrs_.axes.x.ticker = Dygraph.numericTicks;
+    this.attrs_.axes.x.ticker = Dygraph.numericLinearTicks;
     this.attrs_.axes.x.axisLabelFormatter = this.attrs_.axes.x.valueFormatter;
   } else {
     this.error("only 'date', 'datetime' and 'number' types are supported for " +