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Line Charts

Point Image

Documentation
This demo shows that the Chart can display custom images instead of standard point symbols.
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<dx-chart id="chart" [dataSource]="iceHockeyStatistics" title="Canadian Men’s National Ice Hockey Team<br/> at the World Championships" [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> <dxo-grid [visible]="true"></dxo-grid> </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 { iceHockeyStatistics: IceHockeyStatistics[]; constructor(service: Service) { this.iceHockeyStatistics = service.getIceHockeyStatistics(); } customizePoint(arg: any) { if(arg.value == 1) { return { image: { url: "../../../../images/icon-medal-gold.png", width: 20, height: 20 }, visible: true }; } else if(arg.value == 2) { return { image: { url: "../../../../images/icon-medal-silver.png", width: 20, height: 20 }, visible: true }; } else if(arg.value == 3) { return { image: { url: "../../../../images/icon-medal-bronse.png", width: 20, height: 20 }, visible: true }; } } customizeText(arg: any) { if(arg.valueText == 1) { return arg.valueText + "st place"; } else if(arg.valueText == 2) { return arg.valueText + "nd place"; } else if(arg.valueText == 3) { return arg.valueText + "rd place"; } else { return arg.valueText + "th place"; } } } @NgModule({ imports: [ BrowserModule, DxChartModule ], declarations: [AppComponent], bootstrap: [AppComponent] }) export class AppModule { } platformBrowserDynamic().bootstrapModule(AppModule);
/deep/ #chart { height: 440px; width: 100%; }
import { Injectable } from '@angular/core'; export class IceHockeyStatistics { year: number; place: number; } let 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 2 and DevExtreme here: // https://github.com/DevExpress/devextreme-angular/blob/master/README.md System.config({ transpiler: 'ts', typescriptOptions: { module: "commonjs", emitDecoratorMetadata: true, experimentalDecorators: true }, meta: { 'typescript': { "exports": "ts" } }, paths: { 'npm:': 'https://unpkg.com/' }, map: { 'ts': 'npm:plugin-typescript@7.0.6/lib/plugin.js', 'typescript': 'npm:typescript@2.2.2/lib/typescript.js', '@angular/core': 'npm:@angular/core@4.1.0/bundles/core.umd.js', '@angular/common': 'npm:@angular/common@4.1.0/bundles/common.umd.js', '@angular/compiler': 'npm:@angular/compiler@4.1.0/bundles/compiler.umd.js', '@angular/platform-browser': 'npm:@angular/platform-browser@4.1.0/bundles/platform-browser.umd.js', '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic@4.1.0/bundles/platform-browser-dynamic.umd.js', '@angular/http': 'npm:@angular/http@4.1.0/bundles/http.umd.js', '@angular/router': 'npm:@angular/router@4.1.0/bundles/router.umd.js', '@angular/forms': 'npm:@angular/forms@4.1.0/bundles/forms.umd.js', 'rxjs': 'npm:rxjs@5.3.1', 'jszip': 'npm:jszip@3.1.3/dist/jszip.min.js', 'devextreme': 'npm:devextreme@17.1', 'jquery': 'npm:jquery@3.1.1/dist/jquery.min.js', 'devextreme-angular': 'npm:devextreme-angular@17.1' }, packages: { 'app': { main: './app.component.ts', defaultExtension: 'ts' }, 'devextreme': { defaultExtension: 'js' }, 'devextreme-angular': { main: 'index.js', defaultExtension: 'js' } } });
<!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/17.1.5/css/dx.spa.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/17.1.5/css/dx.common.css" /> <link rel="dx-theme" data-theme="generic.light" href="https://cdn3.devexpress.com/jslib/17.1.5/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@0.6.25/dist/zone.js"></script> <script src="https://unpkg.com/reflect-metadata@0.1.3/Reflect.js"></script> <script src="https://unpkg.com/systemjs@0.19.31/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>