Angular-nvD3 Bar Chart y-axis Scaling Bug (AngularJS)

All we need is an easy explanation of the problem, so here it is.

I have an application that creates one discrete bar chart. For some reason that I can’t explain (which seems to be an internal error in the library), the y-axis scales to a data value which ISN’T THE HIGHEST VALUE of integers in the array (in my array, it scales to 5674 instead of 25797). How can I fix this bug? Thank you.

Sample of my data (fetched-data.json):

[{"0":"1","1":"323","ID":"1","STOCK":"323"},{"0":"2","1":"1401","ID":"2","STOCK":"1401"},{"0":"3","1":"5674","ID":"3","STOCK":"5674"},{"0":"4","1":"25797","ID":"4","STOCK":"25797"}]

Sample of the HTML (app.html):

<!DOCTYPE html>
<html ng-app="myApp">

  <head>
    <meta charset="utf-8" />
    <title>Angular-nvD3 Bar Chart</title>
    <script data-require="[email protected]" data-semver="4.6.1" src="https://cdn.jsdelivr.net/lodash/4.6.1/lodash.js"></script>
    <link rel="stylesheet" href="style.css" rel="nofollow noreferrer noopener" />
    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/nvd3/1.8.1/nv.d3.min.css" rel="nofollow noreferrer noopener" />
    <script src="//ajax.googleapis.com/ajax/libs/angularjs/1.3.9/angular.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.6/d3.min.js" charset="utf-8"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/nvd3/1.8.1/nv.d3.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/angular-nvd3/1.0.5/angular-nvd3.min.js"></script>
    <script src="app.js"></script>
  </head>

  <body ng-controller="MainCtrl">
    <nvd3 options="barOptions" data="barData"></nvd3>
  </body>

</html>

Sample of my controller (app.js):

var app = angular.module('myApp', ['nvd3']);

app.controller('MainCtrl', ['$scope', 'services', function($scope, services) {     
    $scope.barData = [];

    var stock = {
      key: 'Product stock',
      values: []
    };

    stock.values = _.map(data.data, function(prod) {
      return {
        label: prod.ID,
        value: prod.STOCK
      };
    });
    console.log(stock);
    $scope.barData.push(stock);
  });

  $scope.barOptions = {
    chart: {
      type: 'discreteBarChart',
      height: 450,
      margin : {
        top: 20,
        right: 20,
        bottom: 50,
        left: 55
      },
      x: function(d){return d.label;},
      y: function(d){return d.value;},
      showValues: true,
      valueFormat: function(d){
        return d3.format(',.4f')(d);
      },
      duration: 500,
      xAxis: {
        axisLabel: 'X Axis'
      },
      yAxis: {
        axisLabel: 'Y Axis',
        axisLabelDistance: -10
      }
    }
  };
}])

.factory('services', ['$http', function($http){
  var serviceBase = 'services/'
  var object = {};
  object.getData = function(){
    return $http.get('fetched-data.json');
  };
  return object;
}]);

How to solve :

I know you bored from this bug, So we are here to help you! Take a deep breath and look at the explanation of your problem. We have many solutions to this problem, But we recommend you to use the first method because it is tested & true method that will 100% work for you.

Method 1

* UPDATE * (Meanwhile, I found a solution. I have to answer my own question.)

Simply by forcing the Y max value by adding to the chart options the following option:

yDomain: [0, 25797]

I found the solution to this “bug” here: https://github.com/krispo/angular-nvd3/issues/47

Note: Use and implement method 1 because this method fully tested our system.
Thank you 🙂

All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0

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