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Linear Gauge

Variable Number of Subvalue Indicators

Documentation

This demo shows how to use the API of the LinearGauge to change its value and subvalue indicators at runtime. To get and set values of the indicators, the value and subvalues methods are utilized.

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<template> <div> <div id="gauge-demo"> <dx-linear-gauge id="gauge" :value="value.primary" :subvalues="value.secondary" > <dx-scale :start-value="0" :end-value="10" :tick-interval="2" > <dx-label :customize-text="customizeText" /> </dx-scale> <dx-tooltip :enabled="true" :customize-tooltip="customizeTooltip" /> <dx-export :enabled="true" /> <dx-title text="Power of Air Conditioners in Store Departments (kW)" > <dx-font :size="28" /> </dx-title> </dx-linear-gauge> <dx-select-box id="selectbox" :data-source="dataSource" :value.sync="value" :width="200" display-expr="name" /> </div> </div> </template> <script> import { dataSource } from './data.js'; import { DxLinearGauge, DxScale, DxLabel, DxTooltip, DxExport, DxTitle, DxFont } from 'devextreme-vue/linear-gauge'; import { DxSelectBox } from 'devextreme-vue/select-box'; export default { components: { DxLinearGauge, DxScale, DxLabel, DxTooltip, DxExport, DxTitle, DxFont, DxSelectBox }, data() { return { dataSource: dataSource, value: dataSource[0] }; }, methods: { customizeText({ valueText }) { return `${valueText} kW`; }, customizeTooltip(scaleValue) { var result = `${scaleValue.valueText} kW`; if (scaleValue.index >= 0) { result = `Secondary ${scaleValue.index + 1}: ${result}`; } else { result = `Primary: ${result}`; } return { text: result }; } } }; </script> <style scoped> #gauge-demo { height: 440px; width: 100%; } #gauge { height: 400px; } </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/19.2.4/css/dx.common.css" /> <link rel="dx-theme" data-theme="generic.light" href="https://cdn3.devexpress.com/jslib/19.2.4/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"> </div> </div> </body> </html>
export const dataSource = [{ name: 'Meat', primary: 8, secondary: [7, 3] }, { name: 'Fish', primary: 7, secondary: [7, 5, 1] }, { name: 'Grocery', primary: 5, secondary: [1, 3] }, { name: 'Greengrocery', primary: 3, secondary: [1] }, { name: 'Stationery', primary: 2, secondary: [] }];
System.config({ transpiler: 'plugin-babel', paths: { 'npm:': 'https://unpkg.com/' }, map: { vue: 'npm:vue@2.5.16/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', '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 } });