display total of bar on flot hover

I would like to display total of bar on flot hover when I have multiple series. Also How can I hide the color from that stacked bar line of 0 values.

var datasets = [{
  "label": "Amend Existing Report",
  "data": [{
    "0": 1446422400000,
    "1": 0
  }, {
    "0": 1447027200000,
    "1": 0
  }, {
    "0": 1447632000000,
    "1": 0
  }, {
    "0": 1448236800000,
    "1": 0
  }, {
    "0": 1448841600000,
    "1": 0
  }, {
    "0": 1449446400000,
    "1": 1
  }, {
    "0": 1450051200000,
    "1": 0
  }, {
    "0": 1450656000000,
    "1": 0
  }, {
    "0": 1451260800000,
    "1": 0
  }, {
    "0": 1451865600000,
    "1": 0
  }, {
    "0": 1452470400000,
    "1": 0
  }, {
    "0": 1453075200000,
    "1": 1
  }, {
    "0": 1453680000000,
    "1": 1
  }, {
    "0": 1454284800000,
    "1": 0
  }],
  "idx": 0
}, {
  "label": "Investigate Report Problem",
  "data": [{
    "0": 1446422400000,
    "1": 1
  }, {
    "0": 1447027200000,
    "1": 0
  }, {
    "0": 1447632000000,
    "1": 2
  }, {
    "0": 1448236800000,
    "1": 4
  }, {
    "0": 1448841600000,
    "1": 0
  }, {
    "0": 1449446400000,
    "1": 1
  }, {
    "0": 1450051200000,
    "1": 0
  }, {
    "0": 1450656000000,
    "1": 2
  }, {
    "0": 1451260800000,
    "1": 0
  }, {
    "0": 1451865600000,
    "1": 0
  }, {
    "0": 1452470400000,
    "1": 0
  }, {
    "0": 1453075200000,
    "1": 5
  }, {
    "0": 1453680000000,
    "1": 0
  }, {
    "0": 1454284800000,
    "1": 0
  }],
  "idx": 1
}, {
  "label": "New Request (One Off Report)",
  "data": [{
    "0": 1446422400000,
    "1": 0
  }, {
    "0": 1447027200000,
    "1": 0
  }, {
    "0": 1447632000000,
    "1": 1
  }, {
    "0": 1448236800000,
    "1": 0
  }, {
    "0": 1448841600000,
    "1": 0
  }, {
    "0": 1449446400000,
    "1": 0
  }, {
    "0": 1450051200000,
    "1": 0
  }, {
    "0": 1450656000000,
    "1": 0
  }, {
    "0": 1451260800000,
    "1": 0
  }, {
    "0": 1451865600000,
    "1": 0
  }, {
    "0": 1452470400000,
    "1": 0
  }, {
    "0": 1453075200000,
    "1": 0
  }, {
    "0": 1453680000000,
    "1": 1
  }, {
    "0": 1454284800000,
    "1": 0
  }],
  "idx": 2
}, {
  "label": "New Request (Regular Report)",
  "data": [{
    "0": 1446422400000,
    "1": 4
  }, {
    "0": 1447027200000,
    "1": 0
  }, {
    "0": 1447632000000,
    "1": 2
  }, {
    "0": 1448236800000,
    "1": 2
  }, {
    "0": 1448841600000,
    "1": 0
  }, {
    "0": 1449446400000,
    "1": 1
  }, {
    "0": 1450051200000,
    "1": 0
  }, {
    "0": 1450656000000,
    "1": 0
  }, {
    "0": 1451260800000,
    "1": 1
  }, {
    "0": 1451865600000,
    "1": 1
  }, {
    "0": 1452470400000,
    "1": 0
  }, {
    "0": 1453075200000,
    "1": 3
  }, {
    "0": 1453680000000,
    "1": 2
  }, {
    "0": 1454284800000,
    "1": 0
  }],
  "idx": 3
}, {
  "label": "Other",
  "data": [{
    "0": 1446422400000,
    "1": 0
  }, {
    "0": 1447027200000,
    "1": 0
  }, {
    "0": 1447632000000,
    "1": 2
  }, {
    "0": 1448236800000,
    "1": 4
  }, {
    "0": 1448841600000,
    "1": 2
  }, {
    "0": 1449446400000,
    "1": 0
  }, {
    "0": 1450051200000,
    "1": 2
  }, {
    "0": 1450656000000,
    "1": 0
  }, {
    "0": 1451260800000,
    "1": 0
  }, {
    "0": 1451865600000,
    "1": 0
  }, {
    "0": 1452470400000,
    "1": 3
  }, {
    "0": 1453075200000,
    "1": 0
  }, {
    "0": 1453680000000,
    "1": 3
  }, {
    "0": 1454284800000,
    "1": 0
  }],
  "idx": 4
}, {
  "label": "Special Events",
  "data": [{
    "0": 1446422400000,
    "1": 0
  }, {
    "0": 1447027200000,
    "1": 0
  }, {
    "0": 1447632000000,
    "1": 0
  }, {
    "0": 1448236800000,
    "1": 1
  }, {
    "0": 1448841600000,
    "1": 0
  }, {
    "0": 1449446400000,
    "1": 3
  }, {
    "0": 1450051200000,
    "1": 1
  }, {
    "0": 1450656000000,
    "1": 0
  }, {
    "0": 1451260800000,
    "1": 0
  }, {
    "0": 1451865600000,
    "1": 0
  }, {
    "0": 1452470400000,
    "1": 0
  }, {
    "0": 1453075200000,
    "1": 0
  }, {
    "0": 1453680000000,
    "1": 0
  }, {
    "0": 1454284800000,
    "1": 0
  }],
  "idx": 5
}];

var ticks = [];
for (var i = 0; i < datasets[0].data.length; i++) {
  ticks.push(datasets[0].data[i][0]);
}

var options = {
  "legend": {
    "position": "ne",
    "noColumns": 6
  },
  "yaxis": {
    "min": 0
  },
  "xaxis": {
    "mode": "time",
    "timeformat": "%d %b",
    //    "tickSize": [7, "day"],
    ticks: ticks,
    "min": 1446163200000,
    "max": 1454544000000 // 1454284800000
  },
  "grid": {
    "clickable": true,
    "hoverable": true
  },
  "series": {
    "stack": true,
    "bars": {
      "show": true,
      "barWidth": 181440000.00000003,
      align: 'center'
    }
  }
};

$.plot($('#CAGraph'), datasets, options);




$("#CAGraph").bind("plothover", function(event, pos, item) {

  if (item) {

    console.log(item);
    var percent = item.datapoint[1].toFixed(0) - item.datapoint[2].toFixed(0);
    var total = item.datapoint[1].toFixed(0);
    
   
    $("#tooltip").show();
    $("#tooltip").html(
        item.series.label + " " + (percent) + "<br>Total: " + total)
      .css({
        top: item.pageY - 25,
        left: item.pageX + 10
      }).fadeIn(200);

  } else {
    $("#tooltip").hide();
  }

});

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<div id="CAGraph" style="width:910px;height:400px"></div>
<div id=tooltip></div>

Solution

To get the total value per bar, run a loop over all data values and put them in a hashmap which you then can use in the tooltip generation. something like this:

var totals = {};
for (var i = 0; i < datasets.length; i++) {
  var dataset = datasets[i];
  for (var j = 0; j < dataset.data.length; j++) {
    var timestamp = dataset.data[j][0];
    var value = dataset.data[j][1];

    if (totals['_' + timestamp]) {
      totals['_' + timestamp] += value;
    } else {
      totals['_' + timestamp] = value;
    }
  }
}

To remove the bars width height zero, set the lineWidth option for the bars to zero:

  "series": {
    "stack": true,
    "bars": {
      "show": true,
      "barWidth": 181440000.00000003,
      align: 'center',
      lineWidth: 0
    }
  }

Both changes are included in the updated code snippet below:

var datasets = [{
  "label": "Amend Existing Report",
  "data": [{
    "0": 1446422400000,
    "1": 0
  }, {
    "0": 1447027200000,
    "1": 0
  }, {
    "0": 1447632000000,
    "1": 0
  }, {
    "0": 1448236800000,
    "1": 0
  }, {
    "0": 1448841600000,
    "1": 0
  }, {
    "0": 1449446400000,
    "1": 1
  }, {
    "0": 1450051200000,
    "1": 0
  }, {
    "0": 1450656000000,
    "1": 0
  }, {
    "0": 1451260800000,
    "1": 0
  }, {
    "0": 1451865600000,
    "1": 0
  }, {
    "0": 1452470400000,
    "1": 0
  }, {
    "0": 1453075200000,
    "1": 1
  }, {
    "0": 1453680000000,
    "1": 1
  }, {
    "0": 1454284800000,
    "1": 0
  }],
  "idx": 0
}, {
  "label": "Investigate Report Problem",
  "data": [{
    "0": 1446422400000,
    "1": 1
  }, {
    "0": 1447027200000,
    "1": 0
  }, {
    "0": 1447632000000,
    "1": 2
  }, {
    "0": 1448236800000,
    "1": 4
  }, {
    "0": 1448841600000,
    "1": 0
  }, {
    "0": 1449446400000,
    "1": 1
  }, {
    "0": 1450051200000,
    "1": 0
  }, {
    "0": 1450656000000,
    "1": 2
  }, {
    "0": 1451260800000,
    "1": 0
  }, {
    "0": 1451865600000,
    "1": 0
  }, {
    "0": 1452470400000,
    "1": 0
  }, {
    "0": 1453075200000,
    "1": 5
  }, {
    "0": 1453680000000,
    "1": 0
  }, {
    "0": 1454284800000,
    "1": 0
  }],
  "idx": 1
}, {
  "label": "New Request (One Off Report)",
  "data": [{
    "0": 1446422400000,
    "1": 0
  }, {
    "0": 1447027200000,
    "1": 0
  }, {
    "0": 1447632000000,
    "1": 1
  }, {
    "0": 1448236800000,
    "1": 0
  }, {
    "0": 1448841600000,
    "1": 0
  }, {
    "0": 1449446400000,
    "1": 0
  }, {
    "0": 1450051200000,
    "1": 0
  }, {
    "0": 1450656000000,
    "1": 0
  }, {
    "0": 1451260800000,
    "1": 0
  }, {
    "0": 1451865600000,
    "1": 0
  }, {
    "0": 1452470400000,
    "1": 0
  }, {
    "0": 1453075200000,
    "1": 0
  }, {
    "0": 1453680000000,
    "1": 1
  }, {
    "0": 1454284800000,
    "1": 0
  }],
  "idx": 2
}, {
  "label": "New Request (Regular Report)",
  "data": [{
    "0": 1446422400000,
    "1": 4
  }, {
    "0": 1447027200000,
    "1": 0
  }, {
    "0": 1447632000000,
    "1": 2
  }, {
    "0": 1448236800000,
    "1": 2
  }, {
    "0": 1448841600000,
    "1": 0
  }, {
    "0": 1449446400000,
    "1": 1
  }, {
    "0": 1450051200000,
    "1": 0
  }, {
    "0": 1450656000000,
    "1": 0
  }, {
    "0": 1451260800000,
    "1": 1
  }, {
    "0": 1451865600000,
    "1": 1
  }, {
    "0": 1452470400000,
    "1": 0
  }, {
    "0": 1453075200000,
    "1": 3
  }, {
    "0": 1453680000000,
    "1": 2
  }, {
    "0": 1454284800000,
    "1": 0
  }],
  "idx": 3
}, {
  "label": "Other",
  "data": [{
    "0": 1446422400000,
    "1": 0
  }, {
    "0": 1447027200000,
    "1": 0
  }, {
    "0": 1447632000000,
    "1": 2
  }, {
    "0": 1448236800000,
    "1": 4
  }, {
    "0": 1448841600000,
    "1": 2
  }, {
    "0": 1449446400000,
    "1": 0
  }, {
    "0": 1450051200000,
    "1": 2
  }, {
    "0": 1450656000000,
    "1": 0
  }, {
    "0": 1451260800000,
    "1": 0
  }, {
    "0": 1451865600000,
    "1": 0
  }, {
    "0": 1452470400000,
    "1": 3
  }, {
    "0": 1453075200000,
    "1": 0
  }, {
    "0": 1453680000000,
    "1": 3
  }, {
    "0": 1454284800000,
    "1": 0
  }],
  "idx": 4
}, {
  "label": "Special Events",
  "data": [{
    "0": 1446422400000,
    "1": 0
  }, {
    "0": 1447027200000,
    "1": 0
  }, {
    "0": 1447632000000,
    "1": 0
  }, {
    "0": 1448236800000,
    "1": 1
  }, {
    "0": 1448841600000,
    "1": 0
  }, {
    "0": 1449446400000,
    "1": 3
  }, {
    "0": 1450051200000,
    "1": 1
  }, {
    "0": 1450656000000,
    "1": 0
  }, {
    "0": 1451260800000,
    "1": 0
  }, {
    "0": 1451865600000,
    "1": 0
  }, {
    "0": 1452470400000,
    "1": 0
  }, {
    "0": 1453075200000,
    "1": 0
  }, {
    "0": 1453680000000,
    "1": 0
  }, {
    "0": 1454284800000,
    "1": 0
  }],
  "idx": 5
}];

var ticks = [];
for (var i = 0; i < datasets[0].data.length; i++) {
  ticks.push(datasets[0].data[i][0]);
}

var totals = {};
for (var i = 0; i < datasets.length; i++) {
  var dataset = datasets[i];
  for (var j = 0; j < dataset.data.length; j++) {
    var timestamp = dataset.data[j][0];
    var value = dataset.data[j][1];

    if (totals['_' + timestamp]) {
      totals['_' + timestamp] += value;
    } else {
      totals['_' + timestamp] = value;
    }
  }
}

var options = {
  "legend": {
    "position": "ne",
    "noColumns": 6
  },
  "yaxis": {
    "min": 0
  },
  "xaxis": {
    "mode": "time",
    "timeformat": "%d %b",
    //    "tickSize": [7, "day"],
    ticks: ticks,
    "min": 1446163200000,
    "max": 1454544000000 // 1454284800000
  },
  "grid": {
    "clickable": true,
    "hoverable": true
  },
  "series": {
    "stack": true,
    "bars": {
      "show": true,
      "barWidth": 181440000.00000003,
      align: 'center',
      lineWidth: 0
    }
  }
};

$.plot($('#CAGraph'), datasets, options);


$("#CAGraph").bind("plothover", function(event, pos, item) {

  if (item) {

    var percent = item.datapoint[1].toFixed(0) - item.datapoint[2].toFixed(0);
    var total = totals['_' + item.datapoint[0]]; //item.datapoint[1].toFixed(0);

    $("#tooltip").show();
    $("#tooltip").html(
        item.series.label + " " + (percent) + "<br>Total: " + total)
      .css({
        top: item.pageY - 25,
        left: item.pageX + 10
      }).fadeIn(200);

  } else {
    $("#tooltip").hide();
  }

});

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<div id="CAGraph" style="width:910px;height:400px"></div>
<div id=tooltip></div>