Merge pull request #3279 from mtanda/override_null

override null point mode

public/app/core/time_series.ts

@@ -37,6 +37,7 @@ class TimeSeries {
   yaxis: any;
   zindex: any;
   stack: any;
+  nullPointMode: any;
   fillBelowTo: any;
   transform: any;
 
@@ -57,6 +58,7 @@ class TimeSeries {
     this.bars = {};
     this.yaxis = 1;
     this.zindex = 0;
+    this.nullPointMode = null;
     delete this.stack;
 
     for (var i = 0; i < overrides.length; i++) {
@@ -70,6 +72,7 @@ class TimeSeries {
       if (override.fill !== void 0) { this.lines.fill = translateFillOption(override.fill); }
       if (override.stack !== void 0) { this.stack = override.stack; }
       if (override.linewidth !== void 0) { this.lines.lineWidth = override.linewidth; }
+      if (override.nullPointMode !== void 0) { this.nullPointMode = override.nullPointMode; }
       if (override.pointradius !== void 0) { this.points.radius = override.pointradius; }
       if (override.steppedLine !== void 0) { this.lines.steps = override.steppedLine; }
       if (override.zindex !== void 0) { this.zindex = override.zindex; }

public/app/panels/graph/graph.js

@@ -227,7 +227,7 @@ function (angular, $, moment, _, kbn, GraphTooltip) {
           for (var i = 0; i < data.length; i++) {
             var series = data[i];
             series.applySeriesOverrides(panel.seriesOverrides);
-            series.data = series.getFlotPairs(panel.nullPointMode, panel.y_formats);
+            series.data = series.getFlotPairs(series.nullPointMode || panel.nullPointMode, panel.y_formats);
 
             // if hidden remove points and disable stack
             if (scope.hiddenSeries[series.alias]) {

public/app/panels/graph/seriesOverridesCtrl.js

@@ -95,6 +95,7 @@ define([
     $scope.addOverrideOption('Lines', 'lines', [true, false]);
     $scope.addOverrideOption('Line fill', 'fill', [0,1,2,3,4,5,6,7,8,9,10]);
     $scope.addOverrideOption('Line width', 'linewidth', [0,1,2,3,4,5,6,7,8,9,10]);
+    $scope.addOverrideOption('Null point mode', 'nullPointMode', ['connected', 'null', 'null as zero']);
     $scope.addOverrideOption('Fill below to', 'fillBelowTo', $scope.getSeriesNames());
     $scope.addOverrideOption('Staircase line', 'steppedLine', [true, false]);
     $scope.addOverrideOption('Points', 'points', [true, false]);