Empty points in Angular 3D Circular Chart component

18 Nov 20185 minutes to read

Data points containing null or undefined values are considered empty points. These empty data points are ignored and not plotted in the 3D Circular Chart. You can customize the handling of empty points using the emptyPointSettings property in the series. The default mode for empty points is Gap. Other supported modes include Average, Drop, and Zero.

app.component.ts

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { CircularChart3DAllModule } from '@syncfusion/ej2-angular-charts'

import { Component, OnInit } from '@angular/core';

@Component({
imports: [
         CircularChart3DAllModule
    ],

providers: [CircularChart3DAllModule],
standalone: true,
  selector: 'app-container',
  template: `<ejs-circularchart3d style='display:block;' align='center' [tilt]='tilt' [legendSettings]="legendSettings">
    <e-circularchart3d-series-collection>
    <e-circularchart3d-series [dataSource]='dataSource' xName='x' yName='y' [emptyPointSettings]='emptyPointSettings' [dataLabel]='dataLabel'>
    </e-circularchart3d-series></e-circularchart3d-series-collection>
    </ejs-circularchart3d>`
})
export class AppComponent implements OnInit {
  public dataSource?: Object[];
  public title?: string;
  public legendSettings?: Object;
  public emptyPointSettings?: Object;
  public tilt?: number;
  public dataLabel?: Object;
  ngOnInit(): void {
    this.dataSource = [
      { x: 'Jan', y: 3 }, { x: 'Feb', y: 3.5 },
      { x: 'Mar', y: undefined }, { x: 'Apr', y: 13.5 },
      { x: 'May', y: 19 }, { x: 'Jun', y: 23.5 },
      { x: 'Jul', y: null }, { x: 'Aug', y: 25 },
      { x: 'Sep', y: 21 }, { x: 'Oct', y: 15 }];
    this.dataLabel = {
      visible: true,
      position: 'Outside'
    };
    this.emptyPointSettings = { mode: 'Zero' };
    this.legendSettings = { visible: false };
    this.tilt = -45
  }
}

main.ts

import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));

Customization

A specific color for an empty point can be set by using the fill property in emptyPointSettings.

app.component.ts

import { NgModule } from '@angular/core'
import { BrowserModule } from '@angular/platform-browser'
import { CircularChart3DAllModule } from '@syncfusion/ej2-angular-charts'

import { Component, OnInit } from '@angular/core';

@Component({
imports: [
         CircularChart3DAllModule
    ],

providers: [CircularChart3DAllModule],
standalone: true,
  selector: 'app-container',
  template: `<ejs-circularchart3d style='display:block;' align='center' [tilt]='tilt' [legendSettings]="legendSettings">
    <e-circularchart3d-series-collection>
    <e-circularchart3d-series [dataSource]='dataSource' xName='x' yName='y' [emptyPointSettings]='emptyPointSettings'>
    </e-circularchart3d-series></e-circularchart3d-series-collection>
    </ejs-circularchart3d>`
})
export class AppComponent implements OnInit {
  public dataSource?: Object[];
  public title?: string;
  public legendSettings?: Object;
  public emptyPointSettings?: object;
  public tilt?: number;
  ngOnInit(): void {
    this.dataSource = [
      { x: 'Jan', y: 3 }, { x: 'Feb', y: 3.5 },
      { x: 'Mar', y: undefined }, { x: 'Apr', y: 13.5 },
      { x: 'May', y: 19 }, { x: 'Jun', y: 23.5 },
      { x: 'Jul', y: null }, { x: 'Aug', y: 25 },
      { x: 'Sep', y: 21 }, { x: 'Oct', y: 15 }];
    this.emptyPointSettings = { mode: 'Average', fill: 'pink' };
    this.legendSettings = { visible: false };
    this.tilt = -45
  }
}

main.ts

import { bootstrapApplication } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import 'zone.js';
bootstrapApplication(AppComponent).catch((err) => console.error(err));