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Zooming and Panning

Enable Zooming

Chart can be zoomed in three ways.

  • Selection - By setting enableSelectionZooming property to true in zoomSettings, you can zoom the chart by using the rubber band selection.
  • Mousewheel - By setting enableMouseWheelZooming property to true in zoomSettings, you can zoomin and zoomout the chart by scrolling the mouse wheel.
  • Pinch - By setting enablePinchZooming property to true in zoomSettings, you can zoom the chart through pinch gesture in touch enabled devices.

Note: Pinch zooming is supported only in browsers that support multi-touch gestures. Currently IE11, Chrome and Opera browsers support multi-touch in desktop devices.

Source
Preview
index.tsx
import * as React from "react";
import * as ReactDOM from "react-dom";
import { AxisModel, ChartComponent, SeriesCollectionDirective, SeriesDirective, Inject,LegendSettingsModel,ZoomSettingsModel,
         Legend, DateTime, Tooltip, DataLabel, AreaSeries,  Zoom}
from'@syncfusion/ej2-react-charts';
import { zoomData } from 'datasource.ts';

class App extends React.Component<{}, {}> {

  public primaryxAxis: AxisModel = { valueType: 'DateTime' };
  public legendSettings: LegendSettingsModel = { visible: false };
  public zoomsettings: ZoomSettingsModel = {
    enableMouseWheelZooming: true, enablePinchZooming: true,
    enableSelectionZooming: true
  };
  public border = { width: 0.5, color: '#00bdae' };
  public animation = { enable: false };

  render() {
    return <ChartComponent id='charts'
      primaryXAxis={this.primaryxAxis}
      legendSettings={this.legendSettings}
      zoomSettings={this.zoomsettings}
      title='Sales History of Product X'>
      <Inject services={[AreaSeries, Legend, Tooltip, DataLabel, Zoom, DateTime]} />
      <SeriesCollectionDirective>
        <SeriesDirective dataSource={zoomData} xName='x' yName='y' opacity={0.3} name='Product X' type='Area'
          border={this.border} animation={this.animation}>
        </SeriesDirective>
      </SeriesCollectionDirective>
    </ChartComponent>
  }

};
ReactDOM.render(<App />, document.getElementById("charts"));

After zooming the chart, a zooming toolbar will appear with zoom,zoomin, zoomout, pan and reset buttons. Selecting the Pan option will allow to pan the chart and selecting the Reset option will reset the zoomed chart.

Modes

The mode property in zoomSettings specifies whether the c hart is allowed to scale along the horizontal axis or vertical axis. The default value of the mode is XY (both axis).

There are three types of mode.

  • X - Allows us to zoom the chart horizontally.
  • Y - Allows us to zoom the chart vertically.
  • XY - Allows us to zoom the chart both vertically and horizontally.
Source
Preview
index.tsx
import * as React from "react";
import * as ReactDOM from "react-dom";
import { AxisModel, ChartComponent, SeriesCollectionDirective, SeriesDirective, Inject,LegendSettingsModel,ZoomSettingsModel,
         Legend, DateTime, Tooltip, DataLabel, AreaSeries,  Zoom}
from'@syncfusion/ej2-react-charts';
import { zoomData } from  'datasource.ts';

class App extends React.Component<{}, {}> {

  public primaryxAxis: AxisModel = { valueType: 'DateTime' };
  public legendSettings: LegendSettingsModel = { visible: false };
  public zoomsettings: ZoomSettingsModel = { mode: 'X', enableSelectionZooming: true };
  public border = { width: 0.5, color: '#00bdae' };
  public animation = { enable: false };

  render() {
    return <ChartComponent id='charts'
      primaryXAxis={this.primaryxAxis}
      legendSettings={this.legendSettings}
      zoomSettings={this.zoomsettings}
      title='Sales History of Product X'>
      <Inject services={[AreaSeries, Legend, Tooltip, DataLabel, Zoom, DateTime]} />
      <SeriesCollectionDirective>
        <SeriesDirective dataSource={zoomData} xName='x' yName='y' opacity={0.3} name='Product X' type='Area'
          border={this.border} animation={this.animation}>
        </SeriesDirective>
      </SeriesCollectionDirective>
    </ChartComponent>
  }

};
ReactDOM.render(<App />, document.getElementById("charts"));

Toolbar

By default, zoomin, zoomout, pan and reset buttons will be displayed for zoomed chart. You can customize to show your desire tools in the toolbar using toolbarItems property.

Source
Preview
index.tsx
import * as React from "react";
import * as ReactDOM from "react-dom";
import { AxisModel, ChartComponent, SeriesCollectionDirective, SeriesDirective, Inject,LegendSettingsModel,ZoomSettingsModel,
         Legend, DateTime, Tooltip, DataLabel, AreaSeries,  Zoom}
from'@syncfusion/ej2-react-charts';
import { zoomData } from  'datasource.ts';

class App extends React.Component<{}, {}> {

  public primaryxAxis: AxisModel = { valueType: 'DateTime' };
  public legendSettings: LegendSettingsModel = { visible: false };
  public zoomsettings: ZoomSettingsModel = { enableSelectionZooming: true, toolbarItems: ['Zoom', 'Pan', 'Reset'] };
  public border = { width: 0.5, color: '#00bdae' };
  public animation = { enable: false };

  render() {
    return <ChartComponent id='charts'
      primaryXAxis={this.primaryxAxis}
      legendSettings={this.legendSettings}
      zoomSettings={this.zoomsettings}
      title='Sales History of Product X'>
      <Inject services={[AreaSeries, Legend, Tooltip, DataLabel, Zoom, DateTime]} />
      <SeriesCollectionDirective>
        <SeriesDirective dataSource={zoomData} xName='x' yName='y' name='Product X' opacity={0.3} type='Area'
          border={this.border} animation={this.animation}>
        </SeriesDirective>
      </SeriesCollectionDirective>
    </ChartComponent>
  }

};
ReactDOM.render(<App />, document.getElementById("charts"));

Eanble Scrollbar

Using enableScrollbar property, you can able to add scrollbar for zoomed chart. Using this scrollbar, you can pan or zoom the chart.

Source
Preview
index.tsx
import * as React from "react";
import * as ReactDOM from "react-dom";
import { AxisModel, ChartComponent, SeriesCollectionDirective, SeriesDirective, Inject,LegendSettingsModel,ZoomSettingsModel,
         Legend, DateTime, Tooltip, DataLabel, AreaSeries,  Zoom, ScrollBar }
from'@syncfusion/ej2-react-charts';
import { zoomData } from  'datasource.ts';

class App extends React.Component<{}, {}> {

  public primaryxAxis: AxisModel = { valueType: 'DateTime', zoomFactor: 0.2, zoomPosition: 0.6 };
  public legendSettings: LegendSettingsModel = { visible: false };
  public zoomsettings: ZoomSettingsModel = { enableSelectionZooming: true, enableScrollbar: true };
  public border = { width: 0.5, color: '#00bdae' };
  public animation = { enable: false };

  render() {
    return <ChartComponent id='charts'
      primaryXAxis={this.primaryxAxis}
      legendSettings={this.legendSettings}
      zoomSettings={this.zoomsettings}
      title='Sales History of Product X'>
      <Inject services={[AreaSeries, Legend, Tooltip, DataLabel, Zoom, DateTime, ScrollBar]} />
      <SeriesCollectionDirective>
        <SeriesDirective dataSource={zoomData} xName='x' yName='y' name='Product X' opacity={0.3} type='Area'
          border={this.border} animation={this.animation}>
        </SeriesDirective>
      </SeriesCollectionDirective>
    </ChartComponent>
  }

};
ReactDOM.render(<App />, document.getElementById("charts"));

Enable Pan

Using enablePan property you can able to pan the zoomed chart without help of toolbar items.

Source
Preview
index.tsx
import * as React from "react";
import * as ReactDOM from "react-dom";
import { AxisModel, ChartComponent, SeriesCollectionDirective, SeriesDirective, Inject,LegendSettingsModel,ZoomSettingsModel,
         Legend, DateTime, Tooltip, DataLabel, AreaSeries,  Zoom}
from'@syncfusion/ej2-react-charts';
import { zoomData } from  'datasource.ts';

class App extends React.Component<{}, {}> {

  public primaryxAxis: AxisModel = { valueType: 'DateTime', zoomFactor: 0.2, zoomPosition: 0.6 };
  public legendSettings: LegendSettingsModel = { visible: false };
  public zoomSettings: ZoomSettingsModel = { enableSelectionZooming: true, enablePan: true };
  public border = { width: 0.5, color: '#00bdae' };
  public animation = { enable: false };

  render() {
    return <ChartComponent id='charts'
      primaryXAxis={this.primaryxAxis}
      legendSettings={this.legendSettings}
      zoomSettings={this.zoomSettings}
      title='Sales History of Product X'>
      <Inject services={[AreaSeries, Legend, Tooltip, DataLabel, Zoom, DateTime]} />
      <SeriesCollectionDirective>
        <SeriesDirective dataSource={zoomData} xName='x' yName='y' name='Product X' opacity={0.3} type='Area'
          border={this.border} animation={this.animation}>
        </SeriesDirective>
      </SeriesCollectionDirective>
    </ChartComponent>
  }

};
ReactDOM.render(<App />, document.getElementById("charts"));

Auto interval on zooming

By using enableAutoIntervalOnZooming property, the axis interval will get calculated automatically with respect to the zoomed range.

Source
Preview
index.tsx
import * as React from "react";
import * as ReactDOM from "react-dom";
import { AxisModel, ChartComponent, SeriesCollectionDirective, SeriesDirective, Inject,LegendSettingsModel,ZoomSettingsModel,
         Legend, DateTime, Tooltip, DataLabel, AreaSeries,  Zoom}
from'@syncfusion/ej2-react-charts';
import { zoomData } from 'datasource.ts';

class App extends React.Component<{}, {}> {

  public primaryxAxis: AxisModel = { valueType: 'DateTime', enableAutoIntervalOnZooming: true };
  public legendSettings: LegendSettingsModel = { visible: false };
  public zoomSettings: ZoomSettingsModel = { enableSelectionZooming: true };
  public border = { width: 0.5, color: '#00bdae' };
  public animation = { enable: false };

  render() {
    return <ChartComponent id='charts'
      primaryXAxis={this.primaryxAxis}
      legendSettings={this.legendSettings}
      zoomSettings={this.zoomSettings}
      title='Sales History of Product X'>
      <Inject services={[AreaSeries, Legend, Tooltip, DataLabel, Zoom, DateTime]} />
      <SeriesCollectionDirective>
        <SeriesDirective dataSource={zoomData} xName='x' yName='y' name='Product X' opacity={0.3} type='Area'
          border={this.border} animation={this.animation}>
        </SeriesDirective>
      </SeriesCollectionDirective>
    </ChartComponent>
  }

};
ReactDOM.render(<App />, document.getElementById("charts"));

Note: To use zooming feature, we need to inject Zoom module into the services.