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Point Image
Documentation
This demo shows that the Chart can display custom images instead of standard point symbols.
Feel free to share demo-related thoughts here.
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If you have technical questions, please create a support ticket in the DevExpress Support Center.
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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: string = "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 };
} else if(arg.value == 2) {
return { image: { url: "../../../../images/Charts/PointImage/icon-medal-silver.png", width: 20, height: 20 }, visible: true };
} else 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";
} 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);
::ng-deep #chart {
height: 440px;
}
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 and DevExtreme here:
// https://js.devexpress.com/Documentation/Guide/Angular_Components/Getting_Started/Create_a_DevExtreme_Application/
System.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': 'npm:@angular',
'tslib': 'npm:tslib@2.1.0/tslib.js',
'rxjs': 'npm:rxjs@6.4.0',
'rrule': 'npm:rrule@2.6.6/dist/es5/rrule.js',
'luxon': 'npm:luxon@1.25.0/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign@1.1.0',
'devextreme': 'npm:devextreme@20.2.5',
'jszip': 'npm:jszip@3.5.0/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@0.9.8/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.0.11',
'devexpress-gantt': 'npm:devexpress-gantt@2.0.18',
'devextreme-angular': 'npm:devextreme-angular@20.2.5',
'preact': 'npm:preact@10.5.11/dist/preact.js',
'preact/hooks': 'npm:preact@10.5.11/hooks/dist/hooks.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'
}
},
packageConfigPaths: [
"npm:@angular/*/package.json",
"npm:@angular/common/*/package.json",
"npm:rxjs/package.json",
"npm:rxjs/operators/package.json",
"npm:devextreme-angular/*/package.json",
"npm:devextreme-angular/ui/*/package.json",
"npm:devextreme-angular/package.json",
"npm:devexpress-diagram/package.json",
"npm:devexpress-gantt/package.json",
]
});
<!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/20.2.5/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.2.5/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@0.10.2/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>