Logarithmic Axis

The FlexChart control allows you to display data using logarithmic axis.

Use the axis logBase property to spread clustered data and improve the clarity of your charts without sacrificing accuracy.

Use the axis format property to automatically scale the labels and show thousands or millions instead of very large raw values.

Learn about FlexChart | Axis Scaling Documentation | FlexChart API Reference

import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import './styles.css'; import * as wjChart from '@grapecity/wijmo.chart'; import { getData } from './data'; // document.readyState === 'complete' ? init() : window.onload = init; // function init() { // create the chart let theChart = new wjChart.FlexChart('#theChart', { itemsSource: getData(), chartType: 'Bubble', bindingX: 'pop', series: [ { name: 'GDP', binding: 'gdp,pci', } ], tooltip: { content: '<b>{country}</b>:<br/>{pci:n0} US$/year/capita' }, axisX: { title: 'Population (millions)', format: 'g4,,', logBase: 10 }, axisY: { title: 'GDP (US$ billions)', format: 'g4,', logBase: 10 }, legend: { position: 'None' } }); // // toggle log scale document.querySelector('#logScale').addEventListener('click', e => { var logBase = e.target.checked ? 10 : null; theChart.axisX.logBase = logBase; theChart.axisY.logBase = logBase; }); }
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>MESCIUS Wijmo FlexChart Logarithmic Axis</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- SystemJS --> <script src="node_modules/systemjs/dist/system.src.js"></script> <script src="systemjs.config.js"></script> <script> System.import('./src/app'); </script> </head> <body> <div class="container-fluid"> <label for="logScale">Log Scale</label> <input id="logScale" type="checkbox" checked="checked"> <div id="theChart"></div> </div> </body> </html>
// export function getData() { let arr = [ { country: 'United States', pop: 320723000, gdp: 17348075 }, { country: 'China', pop: 1357000000, gdp: 10356508 }, { country: 'Japan', pop: 127300000, gdp: 4602367 }, { country: 'Germany', pop: 80620000, gdp: 3874437 }, { country: 'United Kingdom', pop: 64596800, gdp: 2950039 }, { country: 'France', pop: 65821885, gdp: 2833687 }, { country: 'Brazil', pop: 200400000, gdp: 2346583 }, { country: 'Italy', pop: 60705991, gdp: 2147744 }, { country: 'India', pop: 1252000000, gdp: 2051228 }, { country: 'Russia', pop: 143500000, gdp: 1860598 }, { country: 'Canada', pop: 34482779, gdp: 1785387 }, { country: 'Australia', pop: 24170869, gdp: 1442722 }, { country: 'South Korea', pop: 48219000, gdp: 1410383 }, { country: 'Spain', pop: 46162024, gdp: 1406538 }, { country: 'Mexico', pop: 122300000, gdp: 1291062 }, { country: 'Indonesia', pop: 249900000, gdp: 888648 }, { country: 'Netherlands', pop: 16715489, gdp: 880716 }, { country: 'Turkey', pop: 76667864, gdp: 798332 }, { country: 'Saudi Arabia', pop: 27136977, gdp: 746248 }, { country: 'Switzerland', pop: 8039060, gdp: 703852 }, { country: 'Nigeria', pop: 173600000, gdp: 573999 }, { country: 'Sweden', pop: 9471174, gdp: 570591 }, { country: 'Poland', pop: 38092000, gdp: 547894 }, { country: 'Argentina', pop: 40117096, gdp: 543061 }, { country: 'Belgium', pop: 10839905, gdp: 534230 }, { country: 'Norway', pop: 5316800, gdp: 499817 }, { country: 'Austria', pop: 8419776, gdp: 437582 }, { country: 'Iran', pop: 80117000, gdp: 416490 }, { country: 'Thailand', pop: 69519000, gdp: 404824 }, { country: 'United Arab Emirates', pop: 8264070, gdp: 399451 }, { country: 'Colombia', pop: 48389000, gdp: 377867 }, { country: 'South Africa', pop: 50586757, gdp: 350082 }, { country: 'Denmark', pop: 5579204, gdp: 342362 }, { country: 'Malaysia', pop: 28334135, gdp: 338108 }, { country: 'Singapore', pop: 5183700, gdp: 307872 }, { country: 'Israel', pop: 7798600, gdp: 305673 }, { country: 'Hong Kong', pop: 7108100, gdp: 290896 }, { country: 'Egypt', pop: 88094000, gdp: 286435 }, { country: 'Philippines', pop: 98390000, gdp: 284618 }, { country: 'Finland', pop: 5394389, gdp: 272649 }, { country: 'Chile', pop: 17248450, gdp: 258017 }, { country: 'Ireland', pop: 4581269, gdp: 250814 }, { country: 'Pakistan', pop: 191282000, gdp: 246849 }, { country: 'Greece', pop: 10787690, gdp: 237970 }, { country: 'Portugal', pop: 10555853, gdp: 229948 }, { country: 'Iraq', pop: 32105000, gdp: 223508 }, { country: 'Kazakhstan', pop: 16615000, gdp: 216036 }, { country: 'Algeria', pop: 36300000, gdp: 213518 }, { country: 'Qatar', pop: 1699435, gdp: 210109 }, { country: 'Venezuela', pop: 31220000, gdp: 206252 }, { country: 'Czech Republic', pop: 10542080, gdp: 205270 }, { country: 'Peru', pop: 29797694, gdp: 202642 }, { country: 'Romania', pop: 21436000, gdp: 199093 }, { country: 'New Zealand', pop: 4577100, gdp: 197502 }, { country: 'Vietnam', pop: 89700000, gdp: 185897 }, { country: 'Bangladesh', pop: 156600000, gdp: 183824 }, { country: 'Kuwait', pop: 2818000, gdp: 172608 }, { country: 'Hungary', pop: 9985722, gdp: 136989 }, { country: 'Ukraine', pop: 45668028, gdp: 130660 }, { country: 'Angola', pop: 19618000, gdp: 129326 }, { country: 'Morocco', pop: 33803400, gdp: 110009 }, { country: 'Ecuador', pop: 14483499, gdp: 100543 }, { country: 'Slovakia', pop: 5437126, gdp: 99869 }, { country: 'Oman', pop: 2773479, gdp: 77779 }, { country: 'Syria', pop: 23362000, gdp: 77460 }, { country: 'Belarus', pop: 9468000, gdp: 76139 }, { country: 'Sri Lanka', pop: 20653000, gdp: 74924 }, { country: 'Sudan', pop: 30894000, gdp: 74766 }, { country: 'Azerbaijan', pop: 9111100, gdp: 74145 }, { country: 'Luxembourg', pop: 511840, gdp: 65683 }, { country: 'Dominican Republic', pop: 9378818, gdp: 64058 }, { country: 'Myanmar', pop: 48337000, gdp: 63135 }, { country: 'Uzbekistan', pop: 28000000, gdp: 62613 }, { country: 'Kenya', pop: 38610097, gdp: 60937 }, { country: 'Guatemala', pop: 14713763, gdp: 58728 }, { country: 'Uruguay', pop: 3368595, gdp: 57471 }, { country: 'Croatia', pop: 4290612, gdp: 57073 }, { country: 'Bulgaria', pop: 7364570, gdp: 55824 }, { country: 'Ethiopia', pop: 94100000, gdp: 54809 }, { country: 'Lebanon', pop: 4259000, gdp: 50028 }, { country: 'Slovenia', pop: 2081660, gdp: 49570 }, { country: 'Costa Rica', pop: 4563539, gdp: 49553 }, { country: 'Tunisia', pop: 10673800, gdp: 48633 }, { country: 'Lithuania', pop: 3207100, gdp: 48288 }, { country: 'Tanzania', pop: 43188000, gdp: 48089 }, { country: 'Turkmenistan', pop: 5105000, gdp: 47932 }, { country: 'Serbia', pop: 7120666, gdp: 43866 }, { country: 'Panama', pop: 3405813, gdp: 43777 }, { country: 'Yemen', pop: 23833000, gdp: 43229 }, { country: 'Libya', pop: 6423000, gdp: 41148 }, { country: 'Ghana', pop: 24233431, gdp: 38616 }, { country: 'Democratic Republic of the Congo', pop: 67758000, gdp: 35918 }, { country: 'Jordan', pop: 6783300, gdp: 35878 }, { country: 'Bahrain', pop: 1234571, gdp: 33862 }, { country: 'Côte d\'Ivoire', pop: 21395000, gdp: 33741 }, { country: 'Bolivia', pop: 10426154, gdp: 33237 }, { country: 'Latvia', pop: 2209000, gdp: 31972 }, { country: 'Cameroon', pop: 19406100, gdp: 31777 }, { country: 'Paraguay', pop: 6337127, gdp: 30220 }, { country: 'Trinidad and Tobago', pop: 1317714, gdp: 28874 }, { country: 'Uganda', pop: 32939800, gdp: 27616 }, { country: 'Zambia', pop: 13046508, gdp: 26611 }, { country: 'Estonia', pop: 1340194, gdp: 26506 }, { country: 'El Salvador', pop: 6227000, gdp: 25164 }, { country: 'Cyprus', pop: 803200, gdp: 23263 }, { country: 'Afghanistan', pop: 32358000, gdp: 20444 }, { country: 'Nepal', pop: 26620809, gdp: 19761 }, { country: 'Honduras', pop: 8215313, gdp: 19511 }, { country: 'Gabon', pop: 1534000, gdp: 18209 }, { country: 'Bosnia and Herzegovina', pop: 3843126, gdp: 18165 }, { country: 'Brunei', pop: 422700, gdp: 17104 }, { country: 'Iceland', pop: 318452, gdp: 17036 }, { country: 'Papua New Guinea', pop: 7014000, gdp: 16809 }, { country: 'Mozambique', pop: 23049621, gdp: 16684 }, { country: 'Cambodia', pop: 13395682, gdp: 16551 }, { country: 'Georgia', pop: 4469200, gdp: 16536 }, { country: 'Senegal', pop: 12855153, gdp: 15683 }, { country: 'Equatorial Guinea', pop: 720000, gdp: 15530 }, { country: 'Botswana', pop: 2031000, gdp: 15217 }, { country: 'South Sudan', pop: 8260490, gdp: 14304 }, { country: 'Chad', pop: 10329208, gdp: 13945 }, { country: 'Zimbabwe', pop: 12754000, gdp: 13833 }, { country: 'Jamaica', pop: 2705800, gdp: 13709 }, { country: 'Namibia', pop: 2324000, gdp: 13632 }, { country: 'Republic of the Congo', pop: 4140000, gdp: 13552 }, { country: 'Albania', pop: 3194972, gdp: 13276 }, { country: 'Mauritius', pop: 1280924, gdp: 12588 }, { country: 'Burkina Faso', pop: 15730977, gdp: 12503 }, { country: 'Mali', pop: 14517176, gdp: 12094 }, { country: 'Mongolia', pop: 2736800, gdp: 12037 }, { country: 'Nicaragua', pop: 5815524, gdp: 11806 }, { country: 'Laos', pop: 6348800, gdp: 11681 }, { country: 'Armenia', pop: 3266300, gdp: 11644 }, { country: 'Macedonia', pop: 2057284, gdp: 11342 }, { country: 'Madagascar', pop: 18866000, gdp: 10674 }, { country: 'Malta', pop: 417617, gdp: 10514 }, { country: 'Tajikistan', pop: 7616000, gdp: 9242 }, { country: 'Haiti', pop: 10085214, gdp: 8711 }, { country: 'Benin', pop: 9100000, gdp: 8685 }, { country: 'Bahamas', pop: 353658, gdp: 8511 }, { country: 'Niger', pop: 15730754, gdp: 8024 }, { country: 'Moldova', pop: 3560400, gdp: 7962 }, { country: 'Rwanda', pop: 10412826, gdp: 7897 }, { country: 'Kyrgyzstan', pop: 5477600, gdp: 7402 }, { country: 'Kosovo', pop: 1870981, gdp: 7319 }, { country: 'Guinea', pop: 10217591, gdp: 6707 }, { country: 'Malawi', pop: 13077160, gdp: 6055 }, { country: 'Suriname', pop: 529000, gdp: 5210 }, { country: 'Mauritania', pop: 3340627, gdp: 5081 }, { country: 'Timor-Leste', pop: 1066409, gdp: 4970 }, { country: 'Sierra Leone', pop: 5997000, gdp: 4815 }, { country: 'Togo', pop: 5753324, gdp: 4594 }, { country: 'Montenegro', pop: 620029, gdp: 4551 }, { country: 'Swaziland', pop: 1203000, gdp: 4416 }, { country: 'Barbados', pop: 276302, gdp: 4354 }, { country: 'Fiji', pop: 868000, gdp: 4289 }, { country: 'Eritrea', pop: 5415000, gdp: 3858 }, { country: 'Burundi', pop: 8575000, gdp: 3094 }, { country: 'Guyana', pop: 784894, gdp: 3059 }, { country: 'Maldives', pop: 317280, gdp: 2885 }, { country: 'Lesotho', pop: 2194000, gdp: 2220 }, { country: 'Liberia', pop: 3476608, gdp: 2013 }, { country: 'Bhutan', pop: 708265, gdp: 1983 }, { country: 'Cape Verde', pop: 491575, gdp: 1858 }, { country: 'San Marino', pop: 32093, gdp: 1786 }, { country: 'Central African Republic', pop: 4487000, gdp: 1726 }, { country: 'Belize', pop: 312698, gdp: 1699 }, { country: 'Djibouti', pop: 818159, gdp: 1589 }, { country: 'Seychelles', pop: 90945, gdp: 1423 }, { country: 'Saint Lucia', pop: 166526, gdp: 1404 }, { country: 'Antigua and Barbuda', pop: 89138, gdp: 1248 }, { country: 'Solomon Islands', pop: 542287, gdp: 1155 }, { country: 'Guinea-Bissau', pop: 1520830, gdp: 1111 }, { country: 'Grenada', pop: 110821, gdp: 912 }, { country: 'Saint Kitts and Nevis', pop: 51970, gdp: 852 }, { country: 'Samoa', pop: 184032, gdp: 827 }, { country: 'The Gambia', pop: 1776000, gdp: 824 }, { country: 'Vanuatu', pop: 234023, gdp: 822 }, { country: 'Saint Vincent and the Grenadines', pop: 100892, gdp: 729 }, { country: 'Comoros', pop: 754000, gdp: 697 }, { country: 'Dominica', pop: 71685, gdp: 524 }, { country: 'Tonga', pop: 105000, gdp: 438 }, { country: 'São Tomé and Príncipe', pop: 169000, gdp: 338 }, { country: 'Micronesia', pop: 102624, gdp: 308 }, { country: 'Palau', pop: 21000, gdp: 249 }, { country: 'Marshall Islands', pop: 54305, gdp: 193 }, { country: 'Kiribati', pop: 101000, gdp: 181 }, { country: 'Tuvalu', pop: 10000, gdp: 38 } ]; // // calculate the per-capita income and add that to each data point arr.forEach(country => country.pci = country.gdp / country.pop * 1e6); // US$/year/capita // return arr; }
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