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Bar Charts

Scale Breaks

Documentation

Scale breaks allow breaking off parts of the axis to improve the readability of a chart with high amplitude values. This example demonstrates auto-calculated scale breaks. You can change the number of breaks, their style or disabled them.

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<template> <div> <dx-chart id="chart" :data-source="dataSource" title="Relative Masses of the Heaviest\n Solar System Objects" > <dx-series value-field="mass" argument-field="name" type="bar" /> <dx-value-axis :visible="true" :auto-breaks-enabled="autoBreaksEnabledValue" :max-auto-break-count="breaksCountValue" > <dx-break-style :line="lineStyleValue"/> </dx-value-axis> <dx-legend :visible="false"/> <dx-tooltip :enabled="true"/> </dx-chart> <div class="options"> <div class="caption">Options</div> <div class="option"> <dx-check-box :value.sync="autoBreaksEnabledValue" class="checkbox" text="Enable Breaks" /> </div> <div class="option center"> <span>Max Count</span> <dx-select-box :items="breaksCount" :value.sync="breaksCountValue" :width="60" /> </div> <div class="option right"> <span>Style</span> <dx-select-box :items="lineStyles" :value.sync="lineStyleValue" :width="120" /> </div> </div> </div> </template> <script> import DxChart, { DxLegend, DxSeries, DxTooltip, DxValueAxis, DxBreakStyle } from 'devextreme-vue/chart'; import DxSelectBox from 'devextreme-vue/select-box'; import DxCheckBox from 'devextreme-vue/check-box'; import { dataSource } from './data.js'; export default { components: { DxChart, DxLegend, DxSeries, DxTooltip, DxValueAxis, DxBreakStyle, DxSelectBox, DxCheckBox }, data() { const lineStyles = ['waved', 'straight']; const breaksCount = [1, 2, 3, 4]; return { dataSource, autoBreaksEnabledValue: true, breaksCountValue: 3, lineStyleValue: lineStyles[0], lineStyles, breaksCount }; } }; </script> <style> #chart { height: 440px; } .options { padding: 20px; background-color: rgba(191, 191, 191, 0.15); margin-top: 20px; } .caption { font-size: 18px; font-weight: 500; } .option { display: inline-block; margin-right: 70px; margin-top: 5px; } .option > span { margin: 0 10px 0 0; } .checkbox{ margin-top: -4px; } .option > .dx-widget { display: inline-block; vertical-align: middle; } </style>
import Vue from 'vue'; import App from './App.vue'; new Vue({ el: '#app', components: { App }, template: '<App/>' });
<!DOCTYPE html> <html> <head> <title>DevExtreme Demo</title> <meta http-equiv="X-UA-Compatible" content="IE=edge" /> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/19.2.3/css/dx.common.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/19.2.3/css/dx.light.css" /> <script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script> <script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script> <script type="text/javascript" src="config.js"></script> <script type="text/javascript"> System.import('./index.js'); </script> </head> <body class="dx-viewport"> <div class="demo-container"> <div id="app"> <span v-if="false">Loading...</span> </div> </div> </body> </html>
export const dataSource = [{ name: 'Jupiter', mass: 318, }, { name: 'Saturn', mass: 95, }, { name: 'Uranus', mass: 14.6, }, { name: 'Neptune', mass: 17.2, }, { name: 'Earth', mass: 1, }, { name: 'Venus', mass: 0.82, }, { name: 'Mars', mass: 0.11, }, { name: 'Mercury', mass: 0.06, }];
System.config({ transpiler: 'plugin-babel', paths: { 'npm:': 'https://unpkg.com/' }, map: { vue: 'npm:vue@2.6.3/dist/vue.esm.browser.js', 'vue-loader': 'npm:dx-systemjs-vue-browser@latest/index.js', 'devextreme': 'npm:devextreme@19.2', 'devextreme-vue': 'npm:devextreme-vue@19.2', jszip: 'npm:jszip@3.1.3/dist/jszip.min.js', 'quill': 'npm:quill@1.3.7/dist/quill.js', 'devexpress-diagram': 'npm:devexpress-diagram', 'devexpress-gantt': 'npm:devexpress-gantt', 'plugin-babel': 'npm:systemjs-plugin-babel@0/plugin-babel.js', 'systemjs-babel-build': 'npm:systemjs-plugin-babel@0/systemjs-babel-browser.js' }, meta: { '*.vue': { loader: 'vue-loader' } }, packages: { 'devextreme-vue': { main: 'index.js' }, 'devextreme': { defaultExtension: 'js' } }, babelOptions: { sourceMaps: false, stage0: true } });