Jason Jason - 29 days ago 14
AngularJS Question

How to have solid colored bars in angular-chart bar chart

I'm using angular-chart (based on chart.js) to create some bar charts and am having trouble getting the bar styling I want. I want the bars to be solid colors like this:

Desired Result

But I can't figure out how to get rid of the alpha that chart.js adds by default:

Actual Result

My html looks like this:

<body ng-app="myApp" ng-controller="myController as ctrl">
<canvas id="outreach" class="chart chart-bar"
chart-labels="ctrl.socialChart.labels"
chart-data="ctrl.socialChart.data"
chart-series="ctrl.socialChart.series"
chart-colors="ctrl.socialChart.colors"
chart-options="ctrl.socialChart.options"></canvas>
</body>


And the javascript:

angular.module('myApp', ['chart.js'])

.controller('myController', [function() {
var ctrl = this;

ctrl.socialChart = {
options: {
legend: {
display: true
}
},
labels: ['2012'],
series: ['FACEBOOK', 'GOOGLE', 'TWITTER', 'INSTAGRAM'],
// colors: ['rgba(237, 64, 42, 1)', 'rgba(240, 171, 5, 1)', 'rgba(160, 180, 33, 1)', 'rgba(0, 163, 159, 1)'],
colors: ['#ED402A', '#F0AB05', '#A0B421', '#00A39F'],
data: [[1178], [652], [1004], [838]]
}
}]);


Here's a Plunker demonstrating it: Plunker

I've found lots of information about using rgba notation (which for some reason gives me the wrong colors altogether) and fillColor (which I can't get working at all). It's hard to tell what info is for version 1 or 2 of chart.js.

Any help would be appreciated.

Answer

You can use chart-dataset-override="datasetOverride"

HTML

 <div ng-controller="BarCtrl">
    <canvas id="bar" class="chart chart-bar" 
    chart-data="data" 
    chart-labels="labels" 
    chart-series="series" 
    chart-dataset-override="datasetOverride"></canvas>
  </div>

Controller

  ctrl.datasetOverride = [{
        fill: true,
        backgroundColor: [
          "#ED402A",
          "#36A2EB",
          "#FFCE56"
        ]
      }, {
        fill: true,
        backgroundColor: [
          "#F0AB05",
          "#36A2EB",
          "#FFCE56"
        ]
      }, {
        fill: true,
        backgroundColor: [
          "#A0B421",
          "#36A2EB",
          "#FFCE56"
        ]
      }, {
        fill: true,
        backgroundColor: [
          "#00A39F",
          "#36A2EB",
          "#FFCE56"
        ]
      },
    ];

DEMO

Comments