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Charts

Zooming and Scrolling API

Documentation
This example demonstrates how you can connect the Chart and RangeSelector widgets in order to zoom into the appropriate data range within the Chart. Move the sliders along the RangeSelector, and you will note that the value axis of the Chart is adjusted automatically.
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<dx-chart #zoomedChart palette="Harmony Light" [dataSource]="zoomingData"> <dxi-series argumentField="arg" valueField="y1"></dxi-series> <dxi-series argumentField="arg" valueField="y2"></dxi-series> <dxi-series argumentField="arg" valueField="y3"></dxi-series> <dxo-common-series-settings> <dxo-point [size]="7"></dxo-point> </dxo-common-series-settings> <dxo-legend [visible]="false"></dxo-legend> <dxo-argument-axis [valueMarginsEnabled]="false"></dxo-argument-axis> </dx-chart> <dx-range-selector [dataSource]="zoomingData" (onValueChanged)="onValueChanged($event)"> <dxo-size [height]="120"></dxo-size> <dxo-margin [left]="10"></dxo-margin> <dxo-scale [minorTickCount]="1"></dxo-scale> <dxo-behavior callValueChanged="onMoving"></dxo-behavior> <dxo-chart palette="Harmony Light"> <dxi-series argumentField="arg" valueField="y1"></dxi-series> <dxi-series argumentField="arg" valueField="y2"></dxi-series> <dxi-series argumentField="arg" valueField="y3"></dxi-series> </dxo-chart> </dx-range-selector>
import { NgModule, Component, ViewChild, enableProdMode } from '@angular/core'; import { BrowserModule } from '@angular/platform-browser'; import { platformBrowserDynamic } from '@angular/platform-browser-dynamic'; import { DxChartModule, DxChartComponent, DxRangeSelectorModule } from 'devextreme-angular'; import { Service, ZoomingData } from './app.service'; if(!/localhost/.test(document.location.host)) { enableProdMode(); } @Component({ styleUrls: ['app/app.component.css'], selector: 'demo-app', providers: [Service], templateUrl: 'app/app.component.html' }) export class AppComponent { @ViewChild("zoomedChart") zoomedChart: DxChartComponent; zoomingData: ZoomingData[]; constructor(service: Service) { this.zoomingData = service.getZoomingData(); } onValueChanged(e: any) { this.zoomedChart.instance.zoomArgument(e.value[0], e.value[1]); } } @NgModule({ imports: [ BrowserModule, DxChartModule, DxRangeSelectorModule ], declarations: [AppComponent], bootstrap: [AppComponent] }) export class AppModule { } platformBrowserDynamic().bootstrapModule(AppModule);
import { Injectable } from '@angular/core'; export class ZoomingData { arg: number; y1: number; y2: number; y3: number; } let zoomingData: ZoomingData[] = [ { arg: 10, y1: -12, y2: 10, y3: 32 }, { arg: 20, y1: -32, y2: 30, y3: 12 }, { arg: 40, y1: -20, y2: 20, y3: 30 }, { arg: 50, y1: -39, y2: 50, y3: 19 }, { arg: 60, y1: -10, y2: 10, y3: 15 }, { arg: 75, y1: 10, y2: 10, y3: 15 }, { arg: 80, y1: 30, y2: 50, y3: 13 }, { arg: 90, y1: 40, y2: 50, y3: 14 }, { arg: 100, y1: 50, y2: 90, y3: 90 }, { arg: 105, y1: 40, y2: 175, y3: 120 }, { arg: 110, y1: -12, y2: 10, y3: 32 }, { arg: 120, y1: -32, y2: 30, y3: 12 }, { arg: 130, y1: -20, y2: 20, y3: 30 }, { arg: 140, y1: -12, y2: 10, y3: 32 }, { arg: 150, y1: -32, y2: 30, y3: 12 }, { arg: 160, y1: -20, y2: 20, y3: 30 }, { arg: 170, y1: -39, y2: 50, y3: 19 }, { arg: 180, y1: -10, y2: 10, y3: 15 }, { arg: 185, y1: 10, y2: 10, y3: 15 }, { arg: 190, y1: 30, y2: 100, y3: 13 }, { arg: 200, y1: 40, y2: 110, y3: 14 }, { arg: 210, y1: 50, y2: 90, y3: 90 }, { arg: 220, y1: 40, y2: 95, y3: 120 }, { arg: 230, y1: -12, y2: 10, y3: 32 }, { arg: 240, y1: -32, y2: 30, y3: 12 }, { arg: 255, y1: -20, y2: 20, y3: 30 }, { arg: 270, y1: -12, y2: 10, y3: 32 }, { arg: 280, y1: -32, y2: 30, y3: 12 }, { arg: 290, y1: -20, y2: 20, y3: 30 }, { arg: 295, y1: -39, y2: 50, y3: 19 }, { arg: 300, y1: -10, y2: 10, y3: 15 }, { arg: 310, y1: 10, y2: 10, y3: 15 }, { arg: 320, y1: 30, y2: 100, y3: 13 }, { arg: 330, y1: 40, y2: 110, y3: 14 }, { arg: 340, y1: 50, y2: 90, y3: 90 }, { arg: 350, y1: 40, y2: 95, y3: 120 }, { arg: 360, y1: -12, y2: 10, y3: 32 }, { arg: 367, y1: -32, y2: 30, y3: 12 }, { arg: 370, y1: -20, y2: 20, y3: 30 }, { arg: 380, y1: -12, y2: 10, y3: 32 }, { arg: 390, y1: -32, y2: 30, y3: 12 }, { arg: 400, y1: -20, y2: 20, y3: 30 }, { arg: 410, y1: -39, y2: 50, y3: 19 }, { arg: 420, y1: -10, y2: 10, y3: 15 }, { arg: 430, y1: 10, y2: 10, y3: 15 }, { arg: 440, y1: 30, y2: 100, y3: 13 }, { arg: 450, y1: 40, y2: 110, y3: 14 }, { arg: 460, y1: 50, y2: 90, y3: 90 }, { arg: 470, y1: 40, y2: 95, y3: 120 }, { arg: 480, y1: -12, y2: 10, y3: 32 }, { arg: 490, y1: -32, y2: 30, y3: 12 }, { arg: 500, y1: -20, y2: 20, y3: 30 }, { arg: 510, y1: -12, y2: 10, y3: 32 }, { arg: 520, y1: -32, y2: 30, y3: 12 }, { arg: 530, y1: -20, y2: 20, y3: 30 }, { arg: 540, y1: -39, y2: 50, y3: 19 }, { arg: 550, y1: -10, y2: 10, y3: 15 }, { arg: 555, y1: 10, y2: 10, y3: 15 }, { arg: 560, y1: 30, y2: 100, y3: 13 }, { arg: 570, y1: 40, y2: 110, y3: 14 }, { arg: 580, y1: 50, y2: 90, y3: 90 }, { arg: 590, y1: 40, y2: 95, y3: 12 }, { arg: 600, y1: -12, y2: 10, y3: 32 }, { arg: 610, y1: -32, y2: 30, y3: 12 }, { arg: 620, y1: -20, y2: 20, y3: 30 }, { arg: 630, y1: -12, y2: 10, y3: 32 }, { arg: 640, y1: -32, y2: 30, y3: 12 }, { arg: 650, y1: -20, y2: 20, y3: 30 }, { arg: 660, y1: -39, y2: 50, y3: 19 }, { arg: 670, y1: -10, y2: 10, y3: 15 }, { arg: 680, y1: 10, y2: 10, y3: 15 }, { arg: 690, y1: 30, y2: 100, y3: 13 }, { arg: 700, y1: 40, y2: 110, y3: 14 }, { arg: 710, y1: 50, y2: 90, y3: 90 }, { arg: 720, y1: 40, y2: 95, y3: 120 }, { arg: 730, y1: 20, y2: 190, y3: 130 }, { arg: 740, y1: -32, y2: 30, y3: 12 }, { arg: 750, y1: -20, y2: 20, y3: 30 }, { arg: 760, y1: -12, y2: 10, y3: 32 }, { arg: 770, y1: -32, y2: 30, y3: 12 }, { arg: 780, y1: -20, y2: 20, y3: 30 }, { arg: 790, y1: -39, y2: 50, y3: 19 }, { arg: 800, y1: -10, y2: 10, y3: 15 }, { arg: 810, y1: 10, y2: 10, y3: 15 }, { arg: 820, y1: 30, y2: 100, y3: 13 }, { arg: 830, y1: 40, y2: 110, y3: 14 }, { arg: 840, y1: 50, y2: 90, y3: 90 }, { arg: 850, y1: 40, y2: 95, y3: 120 }, { arg: 860, y1: -12, y2: 10, y3: 32 }, { arg: 870, y1: -32, y2: 30, y3: 12 }, { arg: 880, y1: -20, y2: 20, y3: 30 } ]; @Injectable() export class Service { getZoomingData(): ZoomingData[] { return zoomingData; } }
// 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://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/17.1.6/css/dx.spa.css" /> <link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/17.1.6/css/dx.common.css" /> <link rel="dx-theme" data-theme="generic.light" href="https://cdn3.devexpress.com/jslib/17.1.6/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>