本章节我们将为大家介绍 Highcharts 的热点图。
我们在前面的章节已经了解了 Highcharts 配置语法。接下来让我们来看下 Highcharts 的其他配置。
树状图
series 配置
设置 series 的 type 属性为 treemap ，series.type 描述了数据列类型。默认值为 "line"。
var chart = { type: 'treemap'};实例
文件名：highcharts_tree_map.htm
<html><head><meta charset="UTF-8" /><title>Highcharts 教程(runoob.com)</title><script src="/images/2021/06/11/202106110455198183320.js"></script><script src="/images/2021/06/11/202106110455198434251.js"></script><script src="/images/2021/06/11/202106110455198945022.js"></script> <script src="/images/2021/06/11/202106110455199422843.js"></script> </head><body><div id="container" style="width: 550px; height: 400px; margin: 0 auto"></div><script language="JavaScript">$(document).ready(function() { var title = { text: 'Highcharts Treemap' }; var colorAxis = { minColor: '#FFFFFF', maxColor: Highcharts.getOptions().colors[0] }; var series= [{ type: "treemap", layoutAlgorithm: 'squarified', data: [{ name: 'A', value: 6, colorValue: 1 }, { name: 'B', value: 6, colorValue: 2 }, { name: 'C', value: 4, colorValue: 3 }, { name: 'D', value: 3, colorValue: 4 }, { name: 'E', value: 2, colorValue: 5 }, { name: 'F', value: 2, colorValue: 6 }, { name: 'G', value: 1, colorValue: 7 }] }]; var json = {}; json.title = title; json.colorAxis = colorAxis; json.series = series; $('#container').highcharts(json);});</script></body></html>以上实例输出结果为：
不同等级树状图
以下实例使用不同颜色来标识不同等级的树状图。
实例
文件名：highcharts_tree_levels.htm（完整源码请点击实例查看）
<html><head><meta charset="UTF-8" /><title>Highcharts 教程(runoob.com)</title><script src="/images/2021/06/11/202106110455198183320.js"></script><script src="/images/2021/06/11/202106110455198434251.js"></script><script src="/images/2021/06/11/202106110455198945022.js"></script> <script src="/images/2021/06/11/202106110455199422843.js"></script> </head><body><div id="container" style="width: 550px; height: 400px; margin: 0 auto"></div><script language="JavaScript">$(document).ready(function() { var title = { text: 'Fruit consumption' }; var series = [{ type: "treemap", layoutAlgorithm: 'stripes', alternateStartingDirection: true, levels: [{ level: 1, layoutAlgorithm: 'sliceAndDice', dataLabels: { enabled: true, align: 'left', verticalAlign: 'top', style: { fontSize: '15px', fontWeight: 'bold' } } }], data: [{ id: 'A', name: 'Apples', color: "#EC2500" }, { id:'B', name: 'Bananas', color: "#ECE100" }, { id: 'O', name: 'Oranges', color: '#EC9800' }, { name: 'Anne', parent: 'A', value: 5 }, { name: 'Rick', parent: 'A', value: 3 }, { name: 'Peter', parent: 'A', value: 4 }, { name: 'Anne', parent: 'B', value: 4 }, { name: 'Rick', parent: 'B', value: 10 }, { name: 'Peter', parent: 'B', value: 1 }, { name: 'Anne', parent: 'O', value: 1 }, { name: 'Rick', parent: 'O', value: 3 }, { name: 'Peter', parent: 'O', value: 3 }, { name: 'Susanne', parent: 'Kiwi', value: 2, color: '#9EDE00' }] }]; var json = {}; json.title = title; json.series = series; $('#container').highcharts(json);});</script></body></html>以上实例输出结果为：
大数据量树状图
以下实例颜色了大数据量的树状图，具体实例数据可通过点击"知识兔"查看。
文件名：highcharts_tree_largemap.htm
<html><head><meta charset="UTF-8" /><title>Highcharts 教程(runoob.com)</title><script src="/images/2021/06/11/202106110455198183320.js"></script><script src="/images/2021/06/11/202106110455198434251.js"></script> <script src="/images/2021/06/11/202106110455198945022.js"></script> <script src="/images/2021/06/11/202106110455199422843.js"></script> </head><body><div id="container" style="width: 550px; height: 400px; margin: 0 auto"></div><script language="JavaScript">$(document).ready(function() { //省略部分 js 代码 var data = {……}; var points = [], region_p, region_val, region_i, country_p, country_i, cause_p, cause_i, cause_name = []; cause_name['Communicable & other Group I'] = 'Communicable diseases'; cause_name['Noncommunicable diseases'] = 'Non-communicable diseases'; cause_name['Injuries'] = 'Injuries'; region_i = 0; for (var region in data) { region_val = 0; region_p = { id: "id_" + region_i, name: region, color: Highcharts.getOptions().colors[region_i] }; country_i = 0; for (var country in data[region]) { country_p = { id: region_p.id + "_" + country_i, name: country, parent: region_p.id }; points.push(country_p); cause_i = 0; for (var cause in data[region][country]) { cause_p = { id: country_p.id + "_" + cause_i, name: cause_name[cause], parent: country_p.id, value: Math.round(+data[region][country][cause]) }; region_val += cause_p.value; points.push(cause_p); cause_i++; } country_i++; } region_p.value = Math.round(region_val / country_i); points.push(region_p); region_i++; } var chart = { renderTo: 'container' }; var title = { text: 'Global Mortality Rate 2012, per 100 000 population' }; var subtitle: { text: 'Click points to drill down. Source: <a href="https://zhishitu.com/">WHO</a>.' }; var series = [{ type: "treemap", layoutAlgorithm: 'squarified', allowDrillToNode: true, dataLabels: { enabled: false }, levelIsConstant: false, levels: [{ level: 1, dataLabels: { enabled: true }, borderWidth: 3 }], data: points }]; var json = {}; json.title = title; json.series = series; $('#container').highcharts(json);});</script></body></html>以上实例输出结果为：