如何在角度图表条形图中使用纯色条 | 如何在角度图表条形图中使用纯色条

本文介绍了如何在角度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 angular-chart(基于 chart.js)来创建一些条形图，但在获得我想要的条形样式时遇到了麻烦.我希望条形是这样的纯色:

但我不知道如何去掉chart.js默认添加的alpha:

我的 html 看起来像这样:

还有 javascript:

angular.module('myApp', ['chart.js']).controller('myController', [function() {var ctrl = 这个；ctrl.socialChart = {选项: {传奇: {显示:真}},标签:['2012']，系列:['FACEBOOK'、'GOOGLE'、'TWITTER'、'INSTAGRAM']、//颜色:['rgba(237, 64, 42, 1)', 'rgba(240, 171, 5, 1)', 'rgba(160, 180, 33, 1)', 'rgba(0, 163), 159, 1)'],颜色:['#ED402A'、'#F0AB05'、'#A0B421'、'#00A39F']、数据:[[1178]、[652]、[1004]、[838]]}}]);

这是一个演示它的 Plunker:Plunker

我发现了很多关于使用 rgba 表示法(出于某种原因给我的颜色完全错误)和 fillColor(我根本无法使用)的信息.很难说 chart.js 的第 1 版或第 2 版的信息是什么.

任何帮助将不胜感激.

解决方案

您可以使用 chart-dataset-override="datasetOverride"

HTML

 
<canvas id="bar" class="chart chart-bar"图表数据=数据"图表标签=标签"图表系列=系列"chart-dataset-override="datasetOverride"></canvas>

控制器

 ctrl.datasetOverride = [{填充:真实，背景颜色: ["#ED402A","#36A2EB",#FFCE56"]}, {填充:真实，背景颜色: ["#F0AB05","#36A2EB",#FFCE56"]}, {填充:真实，背景颜色: ["#A0B421","#36A2EB",#FFCE56"]}, {填充:真实，背景颜色: ["#00A39F","#36A2EB",#FFCE56"]},];

演示

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:

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

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.

解决方案

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

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