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Angular Charts - Discrete Axis Zooming and Panning

Discrete data support is one of many strengths of the Chart component. In this example, you can zoom data in the Chart using another DevExtreme JavaScript UI component, the RangeSelector.

Backend API
<div id="chart-demo"> <dx-chart id="zoomedChart" palette="soft" [dataSource]="chemicalComposition" title="The Chemical Composition of the Earth Layers" > <dxi-series *ngFor="let item of seriesSource" [valueField]="item.valueField" [name]="item.name" > </dxi-series> <dxo-common-series-settings type="bar" [ignoreEmptyPoints]="true"> </dxo-common-series-settings> <dxi-value-axis> <dxo-label [customizeText]="customizeText"></dxo-label> </dxi-value-axis> <dxo-argument-axis #argumentAxis> </dxo-argument-axis> <dxo-legend [visible]="true" verticalAlignment="top" horizontalAlignment="right" orientation="horizontal" > <dxo-border [visible]="true"></dxo-border> </dxo-legend> </dx-chart> <dx-range-selector [dataSource]="chemicalComposition" [(value)]="argumentAxis.visualRange" > <dxo-size [height]="120"></dxo-size> <dxo-margin [left]="10"></dxo-margin> <dxo-scale [minorTickCount]="1"></dxo-scale> <dxo-behavior valueChangeMode="onHandleMove"></dxo-behavior> <dxo-chart palette="soft"> <dxo-common-series-settings type="bar" [ignoreEmptyPoints]="true"> </dxo-common-series-settings> <dxi-series *ngFor="let item of seriesSource" [valueField]="item.valueField" [name]="item.name" > </dxi-series> </dxo-chart> </dx-range-selector> </div>
import { NgModule, Component, enableProdMode } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { DxRangeSelectorModule } from 'devextreme-angular'; import { DxChartModule, DxChartTypes } from 'devextreme-angular/ui/chart'; import { Service, ChemicalComposition, SerieDescription } from './app.service'; if (!/localhost/.test(document.location.host)) { enableProdMode(); } let modulePrefix = ''; // @ts-ignore if (window && window.config?.packageConfigPaths) { modulePrefix = '/app'; } @Component({ selector: 'demo-app', providers: [Service], templateUrl: `app/app.component.html`, styleUrls: [`app/app.component.css`], }) export class AppComponent { chemicalComposition: ChemicalComposition[]; seriesSource: SerieDescription[]; constructor(service: Service) { this.chemicalComposition = service.getChemicalComposition(); this.seriesSource = service.getSeries(); } customizeText: DxChartTypes.ValueAxisLabel['customizeText'] = ({ valueText }) => `${valueText}%`; } @NgModule({ imports: [ BrowserModule, DxChartModule, DxRangeSelectorModule, ], declarations: [AppComponent], bootstrap: [AppComponent], }) export class AppModule { } platformBrowserDynamic().bootstrapModule(AppModule);
::ng-deep #zoomedChart { margin-bottom: 20px; }
import { Injectable } from '@angular/core'; export class ChemicalComposition { arg: string; Si?: number; Fe?: number; Ni?: number; S?: number; O?: number; Mg?: number; Al?: number; Ca?: number; Na?: number; K?: number; } export class SerieDescription { name: string; valueField: string; } const chemicalComposition: ChemicalComposition[] = [{ arg: 'Inner Core', Si: 7.35, Fe: 79.39, Ni: 5.2, S: 2.3, O: 4.1, }, { arg: 'Outer Core', Si: 7.33, Fe: 78.56, Ni: 5.2, S: 2.7, O: 4.2, }, { arg: 'Lower Mantle', Si: 21.5, Fe: 5.8, O: 44.8, Mg: 22.8, Al: 2.2, Ca: 2.3, Na: 0.3, K: 0.03, }, { arg: 'Upper Mantle', Si: 28.1, Mg: 23.2, Fe: 4.3, Al: 1.2, Ca: 2.2, O: 40.3, Na: 0.2, }, { arg: 'Lower Crust', O: 46.6, Si: 27.7, Al: 8.1, Fe: 5, Ca: 3.6, Na: 2.8, K: 2.6, Mg: 1.5, }, { arg: 'Upper Crust', O: 47, Si: 29.5, Al: 8.05, Fe: 4.66, Ca: 2.96, Na: 2.5, K: 2.5, Mg: 1.87, }]; const seriesSource: SerieDescription[] = [{ name: 'Si', valueField: 'Si', }, { name: 'Fe', valueField: 'Fe', }, { name: 'Ni', valueField: 'Ni', }, { name: 'S', valueField: 'S', }, { name: 'O', valueField: 'O', }, { name: 'Mg', valueField: 'Mg', }, { name: 'Al', valueField: 'Al', }, { name: 'K', valueField: 'K', }, { name: 'Na', valueField: 'Na', }]; @Injectable() export class Service { getChemicalComposition(): ChemicalComposition[] { return chemicalComposition; } getSeries(): SerieDescription[] { return seriesSource; } }
// In real applications, you should not transpile code in the browser. // You can see how to create your own application with Angular and DevExtreme here: // https://js.devexpress.com/Documentation/Guide/Angular_Components/Getting_Started/Create_a_DevExtreme_Application/ const componentNames = [ 'accordion', 'action-sheet', 'autocomplete', 'bar-gauge', 'box', 'bullet', 'button-group', 'button', 'calendar', 'card-view', 'chart', 'chat', 'check-box', 'circular-gauge', 'color-box', 'context-menu', 'data-grid', 'date-box', 'date-range-box', 'defer-rendering', 'diagram', 'draggable', 'drawer', 'drop-down-box', 'drop-down-button', 'file-manager', 'file-uploader', 'filter-builder', 'form', 'funnel', 'gallery', 'gantt', 'html-editor', 'linear-gauge', 'list', 'load-indicator', 'load-panel', 'lookup', 'map', 'menu', 'multi-view', 'nested', 'number-box', 'pagination', 'pie-chart', 'pivot-grid-field-chooser', 'pivot-grid', 'polar-chart', 'popover', 'popup', 'progress-bar', 'radio-group', 'range-selector', 'range-slider', 'recurrence-editor', 'resizable', 'responsive-box', 'sankey', 'scheduler', 'scroll-view', 'select-box', 'slider', 'sortable', 'sparkline', 'speed-dial-action', 'splitter', 'stepper', 'switch', 'tab-panel', 'tabs', 'tag-box', 'text-area', 'text-box', 'tile-view', 'toast', 'toolbar', 'tooltip', 'tree-list', 'tree-map', 'tree-view', 'validation-group', 'validation-summary', 'validator', 'vector-map', ]; window.exports = window.exports || {}; window.config = { transpiler: 'ts', typescriptOptions: { module: 'system', emitDecoratorMetadata: true, experimentalDecorators: true, }, meta: { 'typescript': { 'exports': 'ts', }, 'devextreme/time_zone_utils.js': { 'esModule': true, }, 'devextreme/localization.js': { 'esModule': true, }, 'devextreme/viz/palette.js': { 'esModule': true, }, '@angular/platform-browser-dynamic': { 'esModule': true, }, '@angular/platform-browser': { 'esModule': true, }, '@angular/core': { 'esModule': true, }, '@angular/common': { 'esModule': true, }, '@angular/common/http': { 'esModule': true, }, '@angular/animations': { 'esModule': true, }, '@angular/forms': { 'esModule': true, }, 'openai': { 'esModule': true, }, }, paths: { 'npm:': 'https://cdn.jsdelivr.net/npm/', 'bundles:': '../../../../bundles/', 'externals:': '../../../../bundles/externals/', }, map: { 'ts': 'npm:plugin-typescript@8.0.0/lib/plugin.js', 'typescript': 'npm:typescript@4.2.4/lib/typescript.js', 'jszip': 'npm:jszip@3.10.1/dist/jszip.min.js', /* @angular */ '@angular/compiler': 'bundles:@angular/compiler.umd.js', '@angular/platform-browser-dynamic': 'bundles:@angular/platform-browser-dynamic.umd.js', '@angular/core': 'bundles:@angular/core.umd.js', '@angular/core/primitives/signals': 'bundles:@angular/core.primitives.signals.umd.js', '@angular/common': 'bundles:@angular/common.umd.js', '@angular/common/http': 'bundles:@angular/common-http.umd.js', '@angular/platform-browser': 'bundles:@angular/platform-browser.umd.js', '@angular/platform-browser/animations': 'bundles:@angular/platform-browser.umd.js', '@angular/forms': 'bundles:@angular/forms.umd.js', /* devextreme */ 'devextreme': 'npm:devextreme@25.1.3/cjs', 'devextreme-quill': 'npm:devextreme-quill@1.7.3/dist/dx-quill.min.js', 'devexpress-diagram': 'npm:devexpress-diagram@2.2.19', 'devexpress-gantt': 'npm:devexpress-gantt@4.1.62', /* devextreme-angular umd maps */ 'devextreme-angular': 'bundles:devextreme-angular/devextreme-angular.umd.js', 'devextreme-angular/common/ai-integration': 'bundles:devextreme-angular/devextreme-angular-common-ai-integration.umd.js', 'devextreme-angular/core': 'bundles:devextreme-angular/devextreme-angular-core.umd.js', 'devextreme-angular/common/charts': 'bundles:devextreme-angular/devextreme-angular-common-charts.umd.js', 'devextreme-angular/common/core/animation': 'bundles:devextreme-angular/devextreme-angular-common-core-animation.umd.js', 'devextreme-angular/common/core/environment': 'bundles:devextreme-angular/devextreme-angular-common-core-environment.umd.js', 'devextreme-angular/common/core/events': 'bundles:devextreme-angular/devextreme-angular-common-core-events.umd.js', 'devextreme-angular/common/core/localization': 'bundles:devextreme-angular/devextreme-angular-common-core-localization.umd.js', 'devextreme-angular/common/core': 'bundles:devextreme-angular/devextreme-angular-common-core.umd.js', 'devextreme-angular/common/data/custom-store': 'bundles:devextreme-angular/devextreme-angular-common-data-custom-store.umd.js', 'devextreme-angular/common/data': 'bundles:devextreme-angular/devextreme-angular-common-data.umd.js', 'devextreme-angular/common/export/excel': 'bundles:devextreme-angular/devextreme-angular-common-export-excel.umd.js', 'devextreme-angular/common/export/pdf': 'bundles:devextreme-angular/devextreme-angular-common-export-pdf.umd.js', 'devextreme-angular/common/export': 'bundles:devextreme-angular/devextreme-angular-common-export.umd.js', 'devextreme-angular/common/grids': 'bundles:devextreme-angular/devextreme-angular-common-grids.umd.js', 'devextreme-angular/common': 'bundles:devextreme-angular/devextreme-angular-common.umd.js', 'devextreme-angular/http': 'bundles:devextreme-angular/devextreme-angular-http.umd.js', ...componentNames.reduce((acc, name) => { acc[`devextreme-angular/ui/${name}`] = `bundles:devextreme-angular/devextreme-angular-ui-${name}.umd.js`; acc[`devextreme-angular/ui/${name}/nested`] = `bundles:devextreme-angular/devextreme-angular-ui-${name}-nested.umd.js`; return acc; }, {}), 'tslib': 'npm:tslib/tslib.js', 'rxjs': 'npm:rxjs@7.5.3/dist/bundles/rxjs.umd.js', 'rxjs/operators': 'npm:rxjs@7.5.3/dist/cjs/operators/index.js', 'rrule': 'npm:rrule@2.6.4/dist/es5/rrule.js', 'luxon': 'npm:luxon@3.4.4/build/global/luxon.min.js', 'es6-object-assign': 'npm:es6-object-assign', 'inferno': 'npm:inferno@8.2.3/dist/inferno.min.js', 'inferno-compat': 'npm:inferno-compat/dist/inferno-compat.min.js', 'inferno-create-element': 'npm:inferno-create-element@8.2.3/dist/inferno-create-element.min.js', 'inferno-dom': 'npm:inferno-dom/dist/inferno-dom.min.js', 'inferno-hydrate': 'npm:inferno-hydrate/dist/inferno-hydrate.min.js', 'inferno-clone-vnode': 'npm:inferno-clone-vnode/dist/inferno-clone-vnode.min.js', 'inferno-create-class': 'npm:inferno-create-class/dist/inferno-create-class.min.js', 'inferno-extras': 'npm:inferno-extras/dist/inferno-extras.min.js', '@preact/signals-core': 'npm:@preact/signals-core@1.8.0/dist/signals-core.min.js', // Prettier 'prettier/standalone': 'npm:prettier@2.8.8/standalone.js', 'prettier/parser-html': 'npm:prettier@2.8.8/parser-html.js', }, packages: { 'app': { main: './app.component.ts', defaultExtension: 'ts', }, 'devextreme': { defaultExtension: 'js', }, 'devextreme/events/utils': { main: 'index', }, 'devextreme/common/core/events/utils': { main: 'index', }, 'devextreme/events': { main: 'index', }, 'es6-object-assign': { main: './index.js', defaultExtension: 'js', }, 'rxjs': { defaultExtension: 'js', }, 'rxjs/operators': { defaultExtension: 'js', }, }, packageConfigPaths: [ 'npm:@devextreme/*/package.json', 'npm:rxjs@7.5.3/package.json', 'npm:rxjs@7.5.3/operators/package.json', 'npm:devexpress-diagram@2.2.19/package.json', 'npm:devexpress-gantt@4.1.62/package.json', ], }; System.config(window.config); // System.import('@angular/compiler').catch(console.error.bind(console));
<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml" lang="en"> <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=5.0" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/25.1.3/css/dx.light.css" /> <script src="https://cdn.jsdelivr.net/npm/core-js@2.6.12/client/shim.min.js"></script> <script src="https://cdn.jsdelivr.net/npm/zone.js@0.14.10/bundles/zone.umd.js"></script> <script src="https://cdn.jsdelivr.net/npm/reflect-metadata@0.1.13/Reflect.js"></script> <script src="https://cdn.jsdelivr.net/npm/systemjs@0.21.3/dist/system.js"></script> <script src="config.js"></script> <script> System.import("app").catch(console.error.bind(console)); </script> </head> <body class="dx-viewport"> <div class="demo-container"> <demo-app>Loading...</demo-app> </div> </body> </html>