Crosshair
Documentation
In this example, the crosshair pointer is enabled and a custom style is applied to it. The crosshair pointer allows a user to determine the argument and the value of a specific point more precisely.
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<dx-chart id="chart" [dataSource]="countriesInfo">
<dxi-series
*ngFor="let energy of energySources"
[valueField]="energy.value"
[name]="energy.name"
>
</dxi-series>
<dxo-common-series-settings argumentField="country" type="spline">
<dxo-point hoverMode="allArgumentPoints"></dxo-point>
</dxo-common-series-settings>
<dxo-argument-axis
[valueMarginsEnabled]="false"
discreteAxisDivisionMode="crossLabels"
>
<dxo-grid [visible]="true"></dxo-grid>
</dxo-argument-axis>
<dxo-crosshair [enabled]="true" color="#949494" [width]="3" dashStyle="dot">
<dxo-label [visible]="true" backgroundColor="#949494">
<dxo-font color="#fff" [size]="12"> </dxo-font>
</dxo-label>
</dxo-crosshair>
<dxo-legend
verticalAlignment="bottom"
horizontalAlignment="center"
itemTextPosition="bottom"
>
</dxo-legend>
<dxo-title text="Energy Consumption in 2004">
<dxo-subtitle text="(Millions of Tons, Oil Equivalent)"></dxo-subtitle>
</dxo-title>
<dxo-tooltip [enabled]="true"></dxo-tooltip>
<dxo-export [enabled]="true"></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, CountryInfo, EnergyDescription } 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 {
countriesInfo: CountryInfo[];
energySources: EnergyDescription[];
constructor(service: Service) {
this.countriesInfo = service.getCountriesInfo();
this.energySources = service.getEnergySources();
}
}
@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 CountryInfo {
country: string;
hydro: number;
oil: number;
gas: number;
coal: number;
nuclear: number;
}
export class EnergyDescription {
value: string;
name: string;
}
const energySources: EnergyDescription[] = [
{ value: 'hydro', name: 'Hydro-electric' },
{ value: 'oil', name: 'Oil' },
{ value: 'gas', name: 'Natural gas' },
{ value: 'coal', name: 'Coal' },
{ value: 'nuclear', name: 'Nuclear' },
];
const countriesInfo: CountryInfo[] = [{
country: 'USA',
hydro: 59.8,
oil: 937.6,
gas: 582,
coal: 564.3,
nuclear: 187.9,
}, {
country: 'China',
hydro: 74.2,
oil: 308.6,
gas: 35.1,
coal: 956.9,
nuclear: 11.3,
}, {
country: 'Russia',
hydro: 40,
oil: 128.5,
gas: 361.8,
coal: 105,
nuclear: 32.4,
}, {
country: 'Japan',
hydro: 22.6,
oil: 241.5,
gas: 64.9,
coal: 120.8,
nuclear: 64.8,
}, {
country: 'India',
hydro: 19,
oil: 119.3,
gas: 28.9,
coal: 204.8,
nuclear: 3.8,
}, {
country: 'Germany',
hydro: 6.1,
oil: 123.6,
gas: 77.3,
coal: 85.7,
nuclear: 37.8,
}];
@Injectable()
export class Service {
getCountriesInfo(): CountryInfo[] {
return countriesInfo;
}
getEnergySources(): EnergyDescription[] {
return energySources;
}
}
// 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>