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Point Charts

Scatter

Documentation

Scatter charts can be used whenever you need to allow the user to draw their own conclusions about information displayed within the chart.

Backend API
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<dx-chart id="chart" [dataSource]="dataSource"> <dxi-series argumentField="x1" valueField="y1"></dxi-series> <dxi-series argumentField="x2" valueField="y2"> <dxo-point symbol="triangleDown"></dxo-point> </dxi-series> <dxi-value-axis [tickInterval]="50"></dxi-value-axis> <dxo-common-series-settings type="scatter"></dxo-common-series-settings> <dxo-argument-axis [tickInterval]="5"> <dxo-grid [visible]="true"></dxo-grid> <dxo-minor-grid [visible]="true"></dxo-minor-grid> </dxo-argument-axis> <dxo-legend [visible]="false"></dxo-legend> <dxo-common-pane-settings> <dxo-border [visible]="true"></dxo-border> </dxo-common-pane-settings> </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 { ScatterData, Service } from './app.service'; if (!/localhost/.test(document.location.host)) { enableProdMode(); } @Component({ selector: 'demo-app', templateUrl: 'app/app.component.html', styleUrls: ['app/app.component.css'], providers: [Service], }) export class AppComponent { dataSource: ScatterData[]; constructor(service: Service) { this.dataSource = service.generateDataSource(); } } @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 ScatterData { x1: number; y1: number; x2: number; y2: number; } const scatterData: ScatterData[] = []; @Injectable() export class Service { random(min, max) { return Math.floor(Math.random() * (max - min + 1)) + min; } generateDataSource() { const b1 = this.random(-100, 100) / 10; const b2 = this.random(-100, 100) / 10; let k1 = this.random(-100, 100) / 10; let k2 = this.random(-100, 100) / 10; let deviation1; let deviation2; let i; let x1; let x2; let y1; let y2; let isNegativeDelta; let delta1; let delta2; if (k1 < 0.1 && k1 >= 0) { k1 = 0.1; } if (k1 > -0.1 && k1 < 0) { k1 = -0.1; } if (k2 < 0.1 && k2 >= 0) { k2 = 0.1; } if (k2 > -0.1 && k2 < 0) { k2 = -0.1; } deviation1 = Math.abs(k1 * 8); deviation2 = Math.abs(k2 * 8); for (i = 0; i < 30; i++) { x1 = this.random(1, 20); x2 = this.random(1, 20); isNegativeDelta = this.random(0, 1) === 0; delta1 = deviation1 * Math.random(); delta2 = deviation2 * Math.random(); if (isNegativeDelta) { delta1 = -delta1; delta2 = -delta2; } y1 = k1 * x1 + b1 + delta1; y2 = k2 * x2 + b2 + delta2; scatterData.push({ x1, y1, x2, y2, }); } return scatterData; } }
// 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@8.0.0/lib/plugin.js', 'typescript': 'npm:typescript@3.5.3/lib/typescript.js', '@angular/core': 'npm:@angular/core@12.2.13', '@angular/platform-browser': 'npm:@angular/platform-browser@12.2.13', '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic@12.2.13', '@angular/forms': 'npm:@angular/forms@12.2.13', '@angular/common/http': 'npm:@angular/common@12.2.13/bundles/common-http.umd.js', '@angular/common': 'npm:@angular/common@12.2.13', '@angular/compiler': 'npm:@angular/compiler@12.2.13', 'tslib': 'npm:tslib@2.3.1/tslib.js', 'rxjs': 'npm:rxjs@6.4.0', 'rrule': 'npm:rrule@2.6.6/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@21.2.3/cjs', 'devextreme/bundles/dx.all': 'npm:devextreme@21.2.3/bundles/dx.all.js', 'jszip': 'npm:jszip@3.7.1/dist/jszip.min.js', 'devextreme-quill': 'npm:devextreme-quill@1.5.5/dist/dx-quill.min.js', 'devexpress-diagram': 'npm:devexpress-diagram@2.1.37', 'devexpress-gantt': 'npm:devexpress-gantt@3.1.24', 'devextreme-angular': 'npm:devextreme-angular@21.2.3', '@devextreme/vdom': 'npm:@devextreme/vdom@2.2.3', '@devextreme/runtime': 'npm:@devextreme/runtime@2.3.8', 'inferno': 'npm:inferno@7.4.10/dist/inferno.min.js', 'inferno-compat': 'npm:inferno-compat@7.4.10/dist/inferno-compat.min.js', 'inferno-create-element': 'npm:inferno-create-element@7.4.10/dist/inferno-create-element.min.js', 'inferno-dom': 'npm:inferno-dom@1.0.7/dist/inferno-dom.min.js', 'inferno-hydrate': 'npm:inferno-hydrate@7.4.10/dist/inferno-hydrate.min.js', 'inferno-clone-vnode': 'npm:inferno-clone-vnode@7.4.10/dist/inferno-clone-vnode.min.js', 'inferno-create-class': 'npm:inferno-create-class@7.4.10/dist/inferno-create-class.min.js', 'inferno-extras': 'npm:inferno-extras@7.4.10/dist/inferno-extras.min.js', }, packages: { 'app': { main: './app.component.ts', defaultExtension: 'ts', }, 'devextreme': { defaultExtension: 'js', }, '@devextreme/vdom': { defaultExtension: 'js', }, 'devextreme/events/utils': { main: 'index', }, 'devextreme/events': { main: 'index', }, 'es6-object-assign': { main: './index.js', defaultExtension: 'js', }, }, packageConfigPaths: [ 'npm:@devextreme/*/package.json', 'npm:@devextreme/runtime@2.3.8/inferno/package.json', 'npm:@angular/*/package.json', 'npm:@angular/common/*/package.json', 'npm:rxjs@6.4.0/package.json', 'npm:rxjs@6.4.0/operators/package.json', 'npm:devextreme-angular/*/package.json', 'npm:devextreme-angular@21.2.3/ui/*/package.json', 'npm:devextreme-angular@21.2.3/package.json', 'npm:devexpress-diagram@2.1.37/package.json', 'npm:devexpress-gantt@3.1.24/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/21.2.3/css/dx.common.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/21.2.3/css/dx.light.css" /> <script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script> <script src="https://unpkg.com/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>