如何在角图表条形图中使用纯色条 | 如何在角图表条形图中使用纯色条

本文介绍了如何在角图表条形图中使用纯色条的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我正在使用角度图表（基于chart.js）创建一些条形图，但我无法获得我想要的条形图。我希望这些条形是这样的纯色：

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:

但我无法弄清楚如何摆脱chart.js默认添加的alpha：

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

我的html如下所示：

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>

javascript：

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]]
        }
    }]);

这是一个Plunker演示它：

Here's a Plunker demonstrating it: Plunker

我发现了很多关于使用rgba表示法的信息（出于某种原因给出了我完全错了颜色和fillColor（我根本无法工作）。很难说出chart.js版本1或2的信息是什么。

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.

任何帮助都将不胜感激。

Any help would be appreciated.

推荐答案

您可以使用 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>

控制器

  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

这篇关于如何在角图表条形图中使用纯色条的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！