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Line Charts

Point Image

Documentation

This demo shows that the Chart can display custom images instead of standard point symbols.

Backend API
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<dx-chart id="chart" [dataSource]="iceHockeyStatistics" [title]="title" [customizePoint]="customizePoint" > <dxi-series color="#888888"></dxi-series> <dxo-common-series-settings argumentField="year" valueField="place" type="spline" > <dxo-point [visible]="false"></dxo-point> </dxo-common-series-settings> <dxo-argument-axis [allowDecimals]="false" [axisDivisionFactor]="60"> <dxo-grid [visible]="true"></dxo-grid> <dxo-label> <dxo-format type="decimal"></dxo-format> </dxo-label> </dxo-argument-axis> <dxi-value-axis [inverted]="true"> <dxo-grid [visible]="false"></dxo-grid> <dxo-label [customizeText]="customizeText"></dxo-label> </dxi-value-axis> <dxo-legend [visible]="false"></dxo-legend> <dxo-export [enabled]="true" [formats]="['PNG', 'PDF', 'JPEG', 'GIF', 'SVG']"> </dxo-export> </dx-chart>
import { NgModule, Component, enableProdMode } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { DxChartModule } from 'devextreme-angular'; import { Service, IceHockeyStatistics } from './app.service'; if (!/localhost/.test(document.location.host)) { enableProdMode(); } @Component({ selector: 'demo-app', providers: [Service], templateUrl: 'app/app.component.html', styleUrls: ['app/app.component.css'], }) export class AppComponent { title = 'Canadian Men’s National Ice Hockey Team\n at the World Championships'; iceHockeyStatistics: IceHockeyStatistics[]; constructor(service: Service) { this.iceHockeyStatistics = service.getIceHockeyStatistics(); } customizePoint(arg: any) { if (arg.value == 1) { return { image: { url: '../../../../images/Charts/PointImage/icon-medal-gold.png', width: 20, height: 20 }, visible: true }; } if (arg.value == 2) { return { image: { url: '../../../../images/Charts/PointImage/icon-medal-silver.png', width: 20, height: 20 }, visible: true }; } if (arg.value == 3) { return { image: { url: '../../../../images/Charts/PointImage/icon-medal-bronse.png', width: 20, height: 20 }, visible: true }; } } customizeText(arg: any) { if (arg.valueText == 1) { return `${arg.valueText}st place`; } if (arg.valueText == 2) { return `${arg.valueText}nd place`; } if (arg.valueText == 3) { return `${arg.valueText}rd place`; } return `${arg.valueText}th place`; } } @NgModule({ imports: [ BrowserModule, DxChartModule, ], declarations: [AppComponent], bootstrap: [AppComponent], }) export class AppModule { } platformBrowserDynamic().bootstrapModule(AppModule);
::ng-deep #chart { height: 440px; }
import { Injectable } from '@angular/core'; export class IceHockeyStatistics { year: number; place: number; } const iceHockeyStatistics : IceHockeyStatistics[] = [{ year: 1977, place: 4, }, { year: 1978, place: 3, }, { year: 1979, place: 4, }, { year: 1981, place: 4, }, { year: 1982, place: 3, }, { year: 1983, place: 3, }, { year: 1985, place: 2, }, { year: 1986, place: 3, }, { year: 1987, place: 4, }, { year: 1989, place: 2, }, { year: 1990, place: 4, }, { year: 1991, place: 2, }, { year: 1992, place: 8, }, { year: 1993, place: 4, }, { year: 1994, place: 1, }, { year: 1995, place: 3, }, { year: 1996, place: 2, }, { year: 1997, place: 1, }, { year: 1998, place: 6, }, { year: 1999, place: 4, }, { year: 2000, place: 4, }, { year: 2001, place: 5, }, { year: 2002, place: 6, }, { year: 2003, place: 1, }, { year: 2004, place: 1, }, { year: 2005, place: 2, }, { year: 2006, place: 4, }, { year: 2007, place: 1, }, { year: 2008, place: 2, }, { year: 2009, place: 2, }, { year: 2010, place: 7, }, { year: 2011, place: 5, }, { year: 2012, place: 5, }, { year: 2013, place: 5, }]; @Injectable() export class Service { getIceHockeyStatistics(): IceHockeyStatistics[] { return iceHockeyStatistics; } }
// 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/ window.config = { transpiler: 'ts', typescriptOptions: { module: 'system', emitDecoratorMetadata: true, experimentalDecorators: true, }, meta: { 'typescript': { 'exports': 'ts', }, 'devextreme/localization.js': { 'esModule': true, }, }, paths: { 'npm:': 'https://unpkg.com/', }, map: { 'ts': 'npm:plugin-typescript@4.2.4/lib/plugin.js', 'typescript': 'npm:typescript@4.2.4/lib/typescript.js', '@angular/core': 'npm:@angular/core@12.2.16', '@angular/platform-browser': 'npm:@angular/platform-browser@12.2.16', '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic@12.2.16', '@angular/forms': 'npm:@angular/forms@12.2.16', '@angular/common': 'npm:@angular/common@12.2.16', '@angular/compiler': 'npm:@angular/compiler@12.2.16', 'tslib': 'npm:tslib@2.3.1/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@1.28.0/build/global/luxon.min.js', 'es6-object-assign': 'npm:es6-object-assign@1.1.0', 'devextreme': 'npm:devextreme@22.1.5/cjs', 'devextreme/bundles/dx.all': 'npm:devextreme@22.1.5/bundles/dx.all.js', 'jszip': 'npm:jszip@3.7.1/dist/jszip.min.js', 'devextreme-quill': 'npm:devextreme-quill@1.5.16/dist/dx-quill.min.js', 'devexpress-diagram': 'npm:devexpress-diagram@2.1.63', 'devexpress-gantt': 'npm:devexpress-gantt@4.1.32', 'devextreme-angular': 'npm:devextreme-angular@22.1.5', '@devextreme/runtime': 'npm:@devextreme/runtime@3.0.11', 'inferno': 'npm:inferno@7.4.4/dist/inferno.min.js', 'inferno-compat': 'npm:inferno-compat@7.4.11/dist/inferno-compat.min.js', 'inferno-create-element': 'npm:inferno-create-element@7.4.11/dist/inferno-create-element.min.js', 'inferno-dom': 'npm:inferno-dom/dist/inferno-dom.min.js', 'inferno-hydrate': 'npm:inferno-hydrate@7.4.11/dist/inferno-hydrate.min.js', 'inferno-clone-vnode': 'npm:inferno-clone-vnode@7.4.11/dist/inferno-clone-vnode.min.js', 'inferno-create-class': 'npm:inferno-create-class@7.4.11/dist/inferno-create-class.min.js', 'inferno-extras': 'npm:inferno-extras@7.4.11/dist/inferno-extras.min.js', // Prettier 'prettier/standalone': 'npm:prettier@2.7.1/standalone.js', 'prettier/parser-html': 'npm:prettier@2.7.1/parser-html.js', }, packages: { 'app': { main: './app.component.ts', defaultExtension: 'ts', }, 'devextreme': { defaultExtension: 'js', }, 'devextreme/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:@devextreme/runtime@3.0.11/inferno/package.json', 'npm:@angular/*/package.json', 'npm:@angular/common@12.2.16/*/package.json', 'npm:rxjs@7.5.3/package.json', 'npm:rxjs@7.5.3/operators/package.json', 'npm:devextreme-angular@22.1.5/*/package.json', 'npm:devextreme-angular@22.1.5/ui/*/package.json', 'npm:devextreme-angular@22.1.5/package.json', 'npm:devexpress-diagram@2.1.63/package.json', 'npm:devexpress-gantt@4.1.32/package.json', ], }; System.config(window.config);
<!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <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/22.1.5/css/dx.common.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/22.1.5/css/dx.light.css" /> <script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script> <script src="https://unpkg.com/zone.js@0.11.4/dist/zone.js"></script> <script src="https://unpkg.com/reflect-metadata@0.1.3/Reflect.js"></script> <script src="https://unpkg.com/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>