Highcharts - 单色饼图
以下是单色饼图的示例。
我们在前面的章节已经了解了 Highcharts 基本配置语法。
配置
现在让我们看看采取的其他配置/步骤。
colors 配置
使用 Highcharts.getOptions().plotOptions.pie.colors 属性配置每个饼图的颜色。
// 设置单色并为所有饼设置默认主题
Highcharts.getOptions().plotOptions.pie.colors = (
function () {
var colors = [];
var base = Highcharts.getOptions().colors[0];
var i;
for (i = 0; i < 10; i += 1) {
// 从较暗的基色开始（负增亮），最后得到更亮的颜色
colors.push(Highcharts.Color(base).brighten((i - 3) / 7).get());
}
return colors;
}()
);
示例
文件名:highcharts_pie_monochrome.htm
<html>
<head>
<title>Highcharts 教程</title>
<script src = "https://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
<script src = "https://code.highcharts.com/highcharts.js"></script>
</head>
<body>
<div id = "container" style = "width: 550px; height: 400px; margin: 0 auto"></div>
<script language = "JavaScript">
$(document).ready(function() {
var chart = {
plotBackgroundColor: null,
plotBorderWidth: null,
plotShadow: false
};
var title = {
text: 'Browser market shares at a specific website, 2014'
};
var tooltip = {
pointFormat: '{series.name}: <b>{point.percentage:.1f}%</b>'
};
var plotOptions = {
pie: {
allowPointSelect: true,
cursor: 'pointer',
dataLabels: {
enabled: true,
format: '<b>{point.name}%</b>: {point.percentage:.1f} %',
style: {
color: (
Highcharts.theme && Highcharts.theme.contrastTextColor) ||
'black'
}
}
}
};
var series = [{
type: 'pie',
name: 'Browser share',
data: [
['Firefox', 45.0],
['IE', 26.8],
{
name: 'Chrome',
y: 12.8,
sliced: true,
selected: true
},
['Safari', 8.5],
['Opera', 6.2],
['Others', 0.7]
]
}];
// Make monochrome colors and set them as default for all pies
Highcharts.getOptions().plotOptions.pie.colors = (function () {
var colors = [];
var base = Highcharts.getOptions().colors[0];
var i;
for (i = 0; i < 10; i += 1) {
// Start out with a darkened base color (negative brighten), and end
// up with a much brighter color
colors.push(Highcharts.Color(base).brighten((i - 3) / 7).get());
}
return colors;
}());
var json = {};
json.chart = chart;
json.title = title;
json.tooltip = tooltip;
json.series = series;
json.plotOptions = plotOptions;
$('#container').highcharts(json);
});
</script>
</body>
</html>
以上图表实例的输出结果
