Data label can be added to a chart series by enabling the visible
option in the dataLabel. By default, the labels will arrange smartly without overlapping.
import { Component, OnInit } from '@angular/core';
import { columnData } from 'datasource.ts';
@Component({
selector: 'app-container',
template:
`<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' [title]='title'>
<e-series-collection>
<e-series [dataSource]='chartData' type='Column' xName='x' yName='y' name='Warmest' width=2 [marker]='marker'></e-series>
</e-series-collection>
</ejs-chart>`
})
export class AppComponent implements OnInit {
public primaryXAxis: Object;
public chartData: Object[];
public title: string;
public primaryYAxis: Object;
public marker: Object;
ngOnInit(): void {
this.chartData = columnData;
this.primaryXAxis = {
valueType: 'Category'
};
this.marker = { dataLabel: { visible: true }
};
this.title = 'Alaska Weather Statistics - 2016';
}
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { ChartModule } from '@syncfusion/ej2-angular-charts';
import { DateTimeService, CategoryService, LineSeriesService, ColumnSeriesService } from '@syncfusion/ej2-angular-charts';
import { LegendService, DataLabelService } from '@syncfusion/ej2-angular-charts';
/**
* Module
*/
@NgModule({
imports: [
BrowserModule, ChartModule
],
declarations: [AppComponent],
bootstrap: [AppComponent],
providers: [ DateTimeService, LineSeriesService, LegendService, DataLabelService, ColumnSeriesService, CategoryService ]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';
enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);
Note: To use datalabel feature, we need to inject DataLabelService
into the @NgModule.providers
.
Using position
property, you can place the label either on
Top
, Middle
,Bottom
or Outer
(outer is applicable for column and bar type series).
import { Component, OnInit } from '@angular/core';
import { columnData } from 'datasource.ts';
@Component({
selector: 'app-container',
template:
`<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' [title]='title'>
<e-series-collection>
<e-series [dataSource]='chartData' type='Column' xName='x' yName='y' name='Warmest' width=2 [marker]='marker'></e-series>
</e-series-collection>
</ejs-chart>`
})
export class AppComponent implements OnInit {
public primaryXAxis: Object;
public chartData: Object[];
public title: string;
public primaryYAxis: Object;
public marker: Object;
ngOnInit(): void {
this.chartData = columnData;
this.primaryXAxis = {
valueType: 'Category'
};
this.marker = { dataLabel: { visible: true, position: 'Middle' }
};
this.title = 'Alaska Weather Statistics - 2016';
}
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { ChartModule } from '@syncfusion/ej2-angular-charts';
import { DateTimeService, CategoryService, LineSeriesService, ColumnSeriesService } from '@syncfusion/ej2-angular-charts';
import { LegendService, DataLabelService } from '@syncfusion/ej2-angular-charts';
/**
* Module
*/
@NgModule({
imports: [
BrowserModule, ChartModule
],
declarations: [AppComponent],
bootstrap: [AppComponent],
providers: [ DateTimeService, LineSeriesService, LegendService, DataLabelService, ColumnSeriesService, CategoryService ]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';
enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);
Note: The position Outer
is applicable for column and bar type series.
Label content can be formatted by using the template option. Inside the template, you can add the placeholder text
${point.x}
and ${point.y}
to display corresponding data points x & y value.
Using template
property, you can set data label template
in chart.
import { Component, OnInit } from '@angular/core';
import { columnData } from 'datasource.ts';
@Component({
selector: 'app-container',
template:
`<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' [title]='title'>
<e-series-collection>
<e-series [dataSource]='chartData' type='Column' xName='x' yName='y' name='Warmest' width=2 [marker]='marker'></e-series>
</e-series-collection>
</ejs-chart>`
})
export class AppComponent implements OnInit {
public primaryXAxis: Object;
public chartData: Object[];
public title: string;
public marker: Object;
ngOnInit(): void {
this.chartData = columnData;
this.primaryXAxis = {
title: 'Months',
valueType: 'Category', labelFormat: 'yMMM',
edgeLabelPlacement: 'Shift'
};
this.marker = { dataLabel: { visible: true, position: 'Middle',
template: '<div>${point.x}</div><div>${point.y}</div>' }
};
this.title = 'Alaska Weather Statistics - 2016';
}
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { ChartModule } from '@syncfusion/ej2-angular-charts';
import { DateTimeService, CategoryService, LineSeriesService, ColumnSeriesService } from '@syncfusion/ej2-angular-charts';
import { LegendService, DataLabelService } from '@syncfusion/ej2-angular-charts';
/**
* Module
*/
@NgModule({
imports: [
BrowserModule, ChartModule
],
declarations: [AppComponent],
bootstrap: [AppComponent],
providers: [ DateTimeService, LineSeriesService, LegendService, DataLabelService, ColumnSeriesService, CategoryService ]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';
enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);
Text from the data source can be mapped using name
property.
import { Component, OnInit } from '@angular/core';
import { mapData } from 'datasource.ts';
@Component({
selector: 'app-container',
template:
`<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' [title]='title'>
<e-series-collection>
<e-series [dataSource]='chartData' type='Column' xName='x' yName='y' name='Warmest' width=2 [marker]='marker'></e-series>
</e-series-collection>
</ejs-chart>`
})
export class AppComponent implements OnInit {
public primaryXAxis: Object;
public chartData: Object[];
public title: string;
public primaryYAxis: Object;
public marker: Object;
ngOnInit(): void {
this.chartData = mapData;
this.primaryXAxis = {
valueType: 'Category'
};
this.marker = { dataLabel: { visible: true, name: 'text'}
};
this.title = 'Alaska Weather Statistics - 2016';
}
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { ChartModule } from '@syncfusion/ej2-angular-charts';
import { DateTimeService, CategoryService, LineSeriesService, ColumnSeriesService } from '@syncfusion/ej2-angular-charts';
import { LegendService, DataLabelService } from '@syncfusion/ej2-angular-charts';
/**
* Module
*/
@NgModule({
imports: [
BrowserModule, ChartModule
],
declarations: [AppComponent],
bootstrap: [AppComponent],
providers: [ DateTimeService, LineSeriesService, LegendService, DataLabelService, ColumnSeriesService, CategoryService ]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';
enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);
margin
for data label can be applied to using left
, right
, bottom
and top
properties.
import { Component, OnInit } from '@angular/core';
import { columnData } from 'datasource.ts';
@Component({
selector: 'app-container',
template:
`<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' [title]='title'>
<e-series-collection>
<e-series [dataSource]='chartData' type='Column' xName='x' yName='y' name='Warmest' width=2 [marker]='marker'></e-series>
</e-series-collection>
</ejs-chart>`
})
export class AppComponent implements OnInit {
public primaryXAxis: Object;
public chartData: Object[];
public title: string;
public primaryYAxis: Object;
public marker: Object;
ngOnInit(): void {
this.chartData = columnData;
this.primaryXAxis = {
valueType: 'Category'
};
this.marker = { dataLabel: { visible: true,border:{width: 1, color : 'red'},
margin:{
left:5,
right:5,
top:5,
bottom:5
} }
};
this.title = 'Alaska Weather Statistics - 2016';
}
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { ChartModule } from '@syncfusion/ej2-angular-charts';
import { DateTimeService, CategoryService, LineSeriesService, ColumnSeriesService } from '@syncfusion/ej2-angular-charts';
import { LegendService, DataLabelService } from '@syncfusion/ej2-angular-charts';
/**
* Module
*/
@NgModule({
imports: [
BrowserModule, ChartModule
],
declarations: [AppComponent],
bootstrap: [AppComponent],
providers: [ DateTimeService, LineSeriesService, LegendService, DataLabelService, ColumnSeriesService, CategoryService ]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';
enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);
Using angle
property, you can rotate the data label by its given angle.
import { Component, OnInit } from '@angular/core';
import { columnData } from 'datasource.ts';
@Component({
selector: 'app-container',
template:
`<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' [title]='title'>
<e-series-collection>
<e-series [dataSource]='chartData' type='Column' xName='x' yName='y' name='Warmest' width=2 [marker]='marker'></e-series>
</e-series-collection>
</ejs-chart>`
})
export class AppComponent implements OnInit {
public primaryXAxis: Object;
public chartData: Object[];
public title: string;
public primaryYAxis: Object;
public marker: Object;
ngOnInit(): void {
this.chartData = columnData;
this.primaryXAxis = {
valueType: 'Category'
};
this.marker = { dataLabel: { visible: true, border:{width: 1, color : 'red'},
margin:{
left:5,
right:5,
top:5,
bottom:5
}, angle : 45, enableRotation: true }
};
this.title = 'Alaska Weather Statistics - 2016';
}
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { ChartModule } from '@syncfusion/ej2-angular-charts';
import { DateTimeService, CategoryService, LineSeriesService, ColumnSeriesService } from '@syncfusion/ej2-angular-charts';
import { LegendService, DataLabelService } from '@syncfusion/ej2-angular-charts';
/**
* Module
*/
@NgModule({
imports: [
BrowserModule, ChartModule
],
declarations: [AppComponent],
bootstrap: [AppComponent],
providers: [ DateTimeService, LineSeriesService, LegendService, DataLabelService, ColumnSeriesService, CategoryService ]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';
enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);
stroke
and border
of data label can be customized using fill
and border
properties. Rounded corners
can be customized using rx
and ry
properties.
import { Component, OnInit } from '@angular/core';
import { columnData } from 'datasource.ts';
@Component({
selector: 'app-container',
template:
`<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' [title]='title'>
<e-series-collection>
<e-series [dataSource]='chartData' type='Column' xName='x' yName='y' name='Warmest' width=2 [marker]='marker'></e-series>
</e-series-collection>
</ejs-chart>`
})
export class AppComponent implements OnInit {
public primaryXAxis: Object;
public chartData: Object[];
public title: string;
public primaryYAxis: Object;
public marker: Object;
ngOnInit(): void {
this.chartData = columnData;
this.primaryXAxis = {
valueType: 'Category'
};
this.marker = { dataLabel: { visible: true,
border:{width: 2, color : 'red'},
rx:10, ry: 10
}
};
this.title = 'Alaska Weather Statistics - 2016';
}
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { ChartModule } from '@syncfusion/ej2-angular-charts';
import { DateTimeService, CategoryService, LineSeriesService, ColumnSeriesService } from '@syncfusion/ej2-angular-charts';
import { LegendService, DataLabelService } from '@syncfusion/ej2-angular-charts';
/**
* Module
*/
@NgModule({
imports: [
BrowserModule, ChartModule
],
declarations: [AppComponent],
bootstrap: [AppComponent],
providers: [ DateTimeService, LineSeriesService, LegendService, DataLabelService, ColumnSeriesService, CategoryService ]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';
enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);
Note: rx
and ry
properties requires border
values not to be null.
You can also customize the specific marker and label using
pointRender
and
textRender
event.
pointRender
event allows you to change the shape, color and border for a point, whereas the textRender
event
allows you to change the text for the point.
import { Component, OnInit } from '@angular/core';
import { IPointRenderEventArgs, ITextRenderEventArgs } from '@syncfusion/ej2-angular-charts';
import { columnData } from 'datasource.ts';
@Component({
selector: 'app-container',
template:
`<ejs-chart id="chart-container" [primaryXAxis]='primaryXAxis'[primaryYAxis]='primaryYAxis' (pointRender)='pointRender($event)' (textRender)='textRender($event)'[title]='title'>
<e-series-collection>
<e-series [dataSource]='chartData' type='Column' xName='x' yName='y' name='Warmest' width=2 [marker]='marker'></e-series>
</e-series-collection>
</ejs-chart>`
})
export class AppComponent implements OnInit {
public primaryXAxis: Object;
public chartData: Object[];
public title: string;
public marker: Object;
public pointRender(args: IPointRenderEventArgs): void {
if(args.point.index === 6) {
args.fill = 'red'
}
};
public textRender(args: ITextRenderEventArgs): void {
if(args.point.index === 6){
args.text = 'Maximum Temperature';
args.color = 'red';
}
};
ngOnInit(): void {
this.chartData = columnData;
this.primaryXAxis = {
title: 'Months',
valueType: 'Category', labelFormat: 'yMMM',
edgeLabelPlacement: 'Shift'
};
this.marker = { dataLabel: { visible: true }
};
this.title = 'Alaska Weather Statistics - 2016';
}
}
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { ChartModule } from '@syncfusion/ej2-angular-charts';
import { DateTimeService, CategoryService, LineSeriesService, ColumnSeriesService } from '@syncfusion/ej2-angular-charts';
import { LegendService, DataLabelService } from '@syncfusion/ej2-angular-charts';
/**
* Module
*/
@NgModule({
imports: [
BrowserModule, ChartModule
],
declarations: [AppComponent],
bootstrap: [AppComponent],
providers: [ DateTimeService, LineSeriesService, LegendService, DataLabelService, ColumnSeriesService, CategoryService ]
})
export class AppModule { }
import { platformBrowserDynamic } from '@angular/platform-browser-dynamic';
import { enableProdMode } from '@angular/core';
import { AppModule } from './app.module';
enableProdMode();
platformBrowserDynamic().bootstrapModule(AppModule);