Legends and Titles

Use the header, footer, and axis title properties to add titles to your charts.

import 'bootstrap.css'; import '@grapecity/wijmo.styles/wijmo.css'; import './styles.css'; import * as wjCore from '@grapecity/wijmo'; import * as wjChart from '@grapecity/wijmo.chart'; import * as wjInput from '@grapecity/wijmo.input'; import { getData, getComboData } from './data'; // document.readyState === 'complete' ? init() : window.onload = init; // function init() { // create a chart let theChart = new wjChart.FlexChart('#theChart', { itemsSource: getData(), bindingX: 'country', legend: { position: 'Right' }, series: [ { binding: 'sales', name: 'Sales' }, { binding: 'expenses', name: 'Expenses' }, { binding: 'downloads', name: 'Downloads' } ] }); theChart.palette = getRandomPalette(); // toggle custom styles document.getElementById('customTitles').addEventListener('click', function (e) { wjCore.toggleClass(theChart.hostElement, 'custom-titles', e.target.checked); }); // toggle custom legend styles document.getElementById('customLegend').addEventListener('click', function (e) { wjCore.toggleClass(theChart.hostElement, 'custom-legend', e.target.checked); }); // change legend position var legendPosition = new wjInput.ComboBox('#legendPosition', { itemsSource: getComboData(), textChanged: function (s, e) { theChart.legend.position = s.text; }, text: 'Left' }); // // customize chart titles let header = new wjInput.ComboBox('#header', { textChanged: (s) => theChart.header = s.text }); let footer = new wjInput.ComboBox('#footer', { textChanged: (s) => theChart.footer = s.text }); let xTitle = new wjInput.ComboBox('#xTitle', { textChanged: (s) => theChart.axisX.title = s.text }); let yTitle = new wjInput.ComboBox('#yTitle', { textChanged: (s) => theChart.axisY.title = s.text }); // // initialize titles header.text = 'My Great Chart'; footer.text = 'powered by Wijmo\'s FlexChart'; xTitle.text = 'country'; yTitle.text = 'values/units'; } // function getRandomPalette() { let palettes = Object.getOwnPropertyNames(wjChart.Palettes) .filter(prop => typeof wjChart.Palettes[prop] === "object" && prop !== 'prototype'); let rand = Math.floor(Math.random() * palettes.length); // return wjChart.Palettes[palettes[rand]]; }
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <title>GrapeCity Wijmo FlexChart Legends and Titles</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="header">Header: </label> <div id="header"></div><br> <label for="footer">Footer: </label> <div id="footer"></div><br> <label for="xTitle">X-Axis Title: </label> <div id="xTitle"></div><br> <label for="yTitle">Y-Axis Title: </label> <div id="yTitle"></div> <div> <label for="customTitles">Custom Titles: </label> <input id="customTitles" type="checkbox" checked="true"> </div> <div> <label for="customLegend">Custom Legend: </label> <input id="customLegend" type="checkbox" checked="true"> </div> <label for="legendPosition">Legend Position: </label> <div id="legendPosition"></div> <div class="custom-titles custom-legend" id="theChart"></div> </div> </body> </html>
// create some random data export function getData() { let countries = 'US,Germany,UK,Japan,Italy,Greece'.split(','), data = []; // for (let i = 0; i < countries.length; i++) { data.push({ country: countries[i], sales: Math.random() * 10000, expenses: Math.random() * 5000, downloads: Math.round(Math.random() * 20000) }); } // return data; } // export function getComboData() { return 'None,Top,Bottom,Left,Right'.split(','); }
.wj-flexchart { height: 300px; } label { width: 150px; text-align: right; } .wj-control { margin-bottom: 3px; } /* custom color for all titles */ .custom-titles.wj-flexchart .wj-title { fill: #42357C; } /* custom size/weight for header */ .custom-titles.wj-flexchart .wj-header .wj-title { font-size: 120%; font-weight: bold; } /* custom size/weight for footer */ .custom-titles.wj-flexchart .wj-footer .wj-title { font-size: 90%; font-weight: bold; } /* custom style for axis-x/y titles */ .custom-titles.wj-flexchart .wj-axis-x .wj-title, .custom-titles.wj-flexchart .wj-axis-y .wj-title{ font-size: 75%; font-style: normal; opacity: .5; } .wj-flexchart .wj-legend .wj-label { opacity: .9; font-size: 80%; } /* custom color for legend box */ .custom-legend.wj-flexchart .wj-legend > rect { fill: #003000; } /* custom color for legend labels */ .custom-legend.wj-flexchart .wj-legend .wj-label { fill: white; font-style: italic; }
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