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This chapter we will introduce Highcharts heat map.
In the previous section we already know Highcharts configuration syntax. Let's look at the other configurations Highcharts.
The type attribute is set series treemap, series.type column describes the data type. The default value is "line".
var chart = { type: 'treemap' };
File name: highcharts_tree_map.htm
<html> <head> <meta charset="UTF-8" /> <title>Highcharts 教程 | 本教程(w3resource.net)</title> <script src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script> <script src="http://code.highcharts.com/highcharts.js"></script> <script src="http://code.highcharts.com/modules/treemap.js"></script> <script src="http://code.highcharts.com/modules/heatmap.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>
The above example output is:
The following example uses different colors to identify the different levels of tree.
File name: highcharts_tree_levels.htm (full source code examples, please click to view)
<html> <head> <meta charset="UTF-8" /> <title>Highcharts 教程 | 本教程(w3resource.net)</title> <script src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script> <script src="http://code.highcharts.com/highcharts.js"></script> <script src="http://code.highcharts.com/modules/treemap.js"></script> <script src="http://code.highcharts.com/modules/heatmap.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>
The above example output is:
The following examples of color large amount of data tree, specific examples of the data available by clicking on the "try" to view.
File name: highcharts_tree_largemap.htm
<html> <head> <meta charset="UTF-8" /> <title>Highcharts 教程 | 本教程(w3resource.net)</title> <script src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script> <script src="http://code.highcharts.com/highcharts.js"></script> <script src="http://code.highcharts.com/modules/treemap.js"></script> <script src="http://code.highcharts.com/modules/heatmap.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://apps.who.int/gho/data/node.main.12?lang=en">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>
The above example output is: