如何在 pie chart.js 中创建图例位置？
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【中文标题】如何在 pie chart.js 中创建图例位置？【英文标题】：How to create legend position in pie chart.js? 【发布时间】：2018-08-31 13:03:57 【问题描述】：我正在使用图表 js 来开发我的饼图。我想像这样创建图例位置。任何人请帮我解决这个问题...
这是我的代码...我实际上想要图片一样的结果。当我在 html 中使用 css zoom:70% 并使 javascript 无法工作时，我得到了错误..
<!DOCTYPE html>
<html>
<head>
<title></title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.4.0/Chart.min.js"></script>
</head>
<style type="text/css">
body background-color: #1f1d1d; font-family: Roboto, Myriad Pro, Segoe UI;zoom:70%;
.col-sm-1.content border: 2px solid #1f1d1d
</style>
<body>
<div class="col-sm-1 content" style="background-color: #4f4f4f; height:377px;"><br><br><br>
<canvas id="myChartBBC" style="width:375px; height: 375px;"></canvas>
<br>
<p style="text-align:center; color: #fff;font-size: 14px;"><i>Browse by Channel</i></p>
</div>
</body>
<script>
var ctx = document.getElementById('myChartBBC').getContext('2d');
var chart = new Chart(ctx,
// The type of chart we want to create
type: 'pie',
// The data for our dataset
data:
labels: ["USSD", "URP", "MyTsel App", "Chatbot"],
datasets: [
backgroundColor: ['rgb(12, 146, 204)',
'rgb(255, 67, 0)',
'rgb(131, 0, 255)',
'rgb(250, 255, 0)'
],
borderColor: ['rgb(12, 146, 204)',
'rgb(255, 67, 0)',
'rgb(131, 0, 255)',
'rgb(250, 255, 0)'
],
data: [73, 17, 3, 7],
]
,
// Configuration options go here
options:
legend:
position: 'bottom',
labels:
fontColor: "white"
);
</script>
</html>【问题讨论】：
【参考方案1】：试试这个更新的代码。
<!doctype html>
<html>
<head>
<title>Pie Chart</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<style type="text/css">
body
background-color: #1f1d1d;
font-family: Roboto, Myriad Pro, Segoe UI;
width: 800px;
height: 800px;
</style>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.4.0/Chart.min.js"></script>
</head>
<body>
<div id="canvas-holder" style="width:30%;background-color: #4f4f4f; height:35%;">
<canvas id="chart-area"></canvas>
<p style="text-align:center; color: #fff;font-size: 14px;"><i>Browse by Channel</i></p>
</div>
<script>
var config =
type: 'pie',
data:
labels: ["USSD", "URP", "MyTsel App", "Chatbot"],
datasets: [
backgroundColor: ['rgb(12, 146, 204)',
'rgb(255, 67, 0)',
'rgb(131, 0, 255)',
'rgb(250, 255, 0)'
],
borderColor: ['rgb(12, 146, 204)',
'rgb(255, 67, 0)',
'rgb(131, 0, 255)',
'rgb(250, 255, 0)'
],
data: [73, 17, 3, 7],
]
,
options:
responsive: true,
legend:
position: 'bottom',
labels:
fontColor: "white",
boxWidth: 20,
padding: 20
;
window.onload = function()
var ctx = document.getElementById('chart-area').getContext('2d');
window.myPie = new Chart(ctx, config);
;
</script>
</body>
</html>【讨论】：
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