Interface: IChartWidgetApi

Charting Library.IChartWidgetApi

The main chart API.

This interface can be retrieved by using the following widget (IChartingLibraryWidget) methods:

• chart (IChartingLibraryWidget.chart)
• activeChart (IChartingLibraryWidget.activeChart)

Methods

applyStudyTemplate

▸ applyStudyTemplate(template): void

Apply a study template to the chart.

Example

widget.activeChart().applyStudyTemplate(template);

Parameters

Name	Type	Description
template	object	A study template object.

Returns

void

---

availableZOrderOperations

▸ availableZOrderOperations(sources): AvailableZOrderOperations

Get an object with operations available for the specified set of entities.

Example

widget.activeChart().availableZOrderOperations([id]);

Parameters

Name	Type	Description
sources	readonly EntityId[]	An array of entity IDs.

Returns

AvailableZOrderOperations

---

barTimeToEndOfPeriod

▸ barTimeToEndOfPeriod(unixTime): number

Get the bar time to the end of the period

Parameters

Name	Type	Description
unixTime	number	date timestamp

Returns

number

---

bringForward

▸ bringForward(sources): void

Move the sources one level up in the Z-order.

Example

widget.activeChart().bringForward([id]);

Parameters

Name	Type	Description
sources	readonly EntityId[]	An array of source IDs.

Returns

void

---

bringToFront

▸ bringToFront(sources): void

Move the sources to the top of the Z-order.

Example

widget.activeChart().bringToFront([id]);

Parameters

Name	Type	Description
sources	readonly EntityId[]	An array of source IDs.

Returns

void

---

canZoomOut

▸ canZoomOut(): boolean

Check if the chart can be zoomed out using the zoomOut method.

Example

if(widget.activeChart().canZoomOut()) {
    widget.activeChart().zoomOut();
};

Returns

boolean

true if the chart can be zoomed out.

---

cancelSelectBar

▸ cancelSelectBar(): void

Cancel any active bar selection requests.

Example

widget.activeChart().cancelSelectBar();

Returns

void

---

chartType

▸ chartType(): SeriesType

Returns the main series style type.

console.log(widget.activeChart().chartType());

Returns

SeriesType

---

clearMarks

▸ clearMarks(marksToClear?): void

Remove marks from the chart.

Example

widget.activeChart().clearMarks();

Parameters

Name	Type	Description
marksToClear?	ClearMarksMode	type of marks to clear. If nothing is specified both bar & timescale marks will be removed.

Returns

void

---

createAnchoredShape

▸ createAnchoredShape<TOverrides>(position, options): EntityId

Create a new anchored drawing. Anchored drawings maintain their position when the chart's visible range changes.

Example

widget.createAnchoredShape({ x: 0.1, y: 0.9 }, { shape: 'anchored_text', text: 'Hello, charts!', overrides: { color: 'green' }});

Type parameters

Name	Type
TOverrides	extends object

Parameters

Name	Type	Description
position	PositionPercents	Percent-based x and y position of the new drawing, relative to the top left of the chart.
options	CreateAnchoredShapeOptions<TOverrides>	An options object for the new drawing.

Returns

EntityId

---

createExecutionShape

▸ createExecutionShape(options?): IExecutionLineAdapter

Creates a new trade execution on the chart.

Example

widget.activeChart().createExecutionShape()
    .setText("@1,320.75 Limit Buy 1")
    .setTooltip("@1,320.75 Limit Buy 1")
    .setTextColor("rgba(0,255,0,0.5)")
    .setArrowColor("#0F0")
    .setDirection("buy")
    .setTime(widget.activeChart().getVisibleRange().from)
    .setPrice(160);

Parameters

Name	Type	Description
options?	UndoOptions	Optional undo options.

Returns

IExecutionLineAdapter

An API object for interacting with the execution.

---

createMultipointShape

▸ createMultipointShape<TOverrides>(points, options): EntityId

Create a new multi point drawing.

Example

const from = Date.now() / 1000 - 500 * 24 * 3600; // 500 days ago
const to = Date.now() / 1000;
widget.activeChart().createMultipointShape(
    [{ time: from, price: 150 }, { time: to, price: 150 }],
    {
        shape: "trend_line",
        lock: true,
        disableSelection: true,
        disableSave: true,
        disableUndo: true,
        text: "text",
    }
);

Type parameters

Name	Type
TOverrides	extends object

Parameters

Name	Type	Description
points	ShapePoint[]	An array of points that define the drawing.
options	CreateMultipointShapeOptions<TOverrides>	An options object for the new drawing.

Returns

EntityId

The ID of the new drawing if it was created successfully, or null otherwise.

---

createOrderLine

▸ createOrderLine(options?): IOrderLineAdapter

Create a new trading order on the chart.

Example

widget.activeChart().createOrderLine()
    .setTooltip("Additional order information")
    .setModifyTooltip("Modify order")
    .setCancelTooltip("Cancel order")
    .onMove(function() {
        this.setText("onMove called");
    })
    .onModify("onModify called", function(text) {
        this.setText(text);
    })
    .onCancel("onCancel called", function(text) {
        this.setText(text);
    })
    .setText("STOP: 73.5 (5,64%)")
    .setQuantity("2");

Parameters

Name	Type	Description
options?	UndoOptions	Optional undo options.

Returns

IOrderLineAdapter

An API object for interacting with the order.

---

createPositionLine

▸ createPositionLine(options?): IPositionLineAdapter

Creates a new trading position on the chart.

Example

widget.chart().createPositionLine()
    .onModify(function() {
        this.setText("onModify called");
    })
    .onReverse("onReverse called", function(text) {
        this.setText(text);
    })
    .onClose("onClose called", function(text) {
        this.setText(text);
    })
    .setText("PROFIT: 71.1 (3.31%)")
    .setTooltip("Additional position information")
    .setProtectTooltip("Protect position")
    .setCloseTooltip("Close position")
    .setReverseTooltip("Reverse position")
    .setQuantity("8.235")
    .setPrice(160)
    .setExtendLeft(false)
    .setLineStyle(0)
    .setLineLength(25);

Parameters

Name	Type	Description
options?	UndoOptions	Optional undo options.

Returns

IPositionLineAdapter

An API object for interacting with the position.

---

createShape

▸ createShape<TOverrides>(point, options): EntityId

Create a new single point drawing.

Example

widget.activeChart().createShape({ time: 1514764800 }, { shape: 'vertical_line' });

Type parameters

Name	Type
TOverrides	extends object

Parameters

Name	Type	Description
point	ShapePoint	A point. The location of the new drawing.
options	CreateShapeOptions<TOverrides>	An options object for the new drawing.

Returns

EntityId

The ID of the new drawing if it was created successfully, or null otherwise.

---

createStudy

▸ createStudy<TOverrides>(name, forceOverlay?, lock?, inputs?, overrides?, options?): Promise<EntityId>

Adds an indicator or a symbol for comparison to the chart. For more information, refer to the Indicators article.

Type parameters

Name	Type
TOverrides	extends StudyOverrides

Parameters

Name	Type	Description
name	string	name of an indicator as shown in the Indicators widget
forceOverlay?	boolean	forces the Charting Library to place the created indicator on the main pane
lock?	boolean	whether a user will be able to remove/change/hide the indicator or not
inputs?	Record<string, StudyInputValue>	From version v22, it's an object containing named properties from the indicator properties dialog.
overrides?	TOverrides	An object that contains overrides for a new indicator. Note that you should not specify the indicator name. Overrides for built-in indicators are listed in SingleIndicatorOverrides.
options?	CreateStudyOptions	study creation options

Returns

Promise<EntityId>

ID of the created study

---

createStudyTemplate

▸ createStudyTemplate(options): object

Save the current study template to a object.

Example

const options = { saveSymbol: true, saveInterval: true };
const template = widget.activeChart().createStudyTemplate(options);

Parameters

Name	Type	Description
options	CreateStudyTemplateOptions	An object of study template options.

Returns

object

A study template object.

---

crossHairMoved

▸ crossHairMoved(): ISubscription<(params: CrossHairMovedEventParams) => void>

Get a subscription object for the crosshair moving over the chart.

Example

widget.activeChart().crossHairMoved().subscribe(
    null,
    ({ time, price }) => console.log(time, price)
);

Returns

ISubscription<(params: CrossHairMovedEventParams) => void>

A subscription object for the crosshair moving over the chart.

---

dataReady

▸ dataReady(callback): boolean

Provide a callback function that will be called when chart data is loaded. If chart data is already loaded when this method is called, the callback is called immediately.

Example

widget.activeChart().dataReady(() => {
    // ...
}

Parameters

Name	Type	Description
callback	() => void	A callback function called when chart data is loaded.

Returns

boolean

---

endOfPeriodToBarTime

▸ endOfPeriodToBarTime(unixTime): number

Get the end of period to bar time

Parameters

Name	Type	Description
unixTime	number	date timestamp

Returns

number

---

executeActionById

▸ executeActionById(actionId): void

Execute an action.

Example

// ...
widget.activeChart().executeActionById("undo");
// ...
widget.activeChart().executeActionById("drawingToolbarAction"); // Hides or shows the drawing toolbar
// ...

Parameters

Name	Type	Description
actionId	ChartActionId	An action ID.

Returns

void

---

exportData

▸ exportData(options?): Promise<ExportedData>

Export the current data from the chart.

Example

// Exports series' data only
widget.activeChart().exportData({ includeTime: false, includedStudies: [] });
// Exports series' data with times
widget.activeChart().exportData({ includedStudies: [] });
// Exports series' data with with user time
widget.activeChart().exportData({ includeTime: false, includeUserTime: true, includedStudies: [] });
// Exports data for the indicator which ID is STUDY_ID
widget.activeChart().exportData({ includeTime: false, includeSeries: false, includedStudies: ['STUDY_ID'] });
// Exports all available data from the chart
widget.activeChart().exportData({ includeUserTime: true });
// Exports series' data before 2018-01-01
widget.activeChart().exportData({ includeTime: false, to: Date.UTC(2018, 0, 1) / 1000 });
// Exports series' data after 2018-01-01
widget.activeChart().exportData({ includeTime: false, from: Date.UTC(2018, 0, 1) / 1000 });
// Exports series' data in the range between 2018-01-01 and 2018-02-01
widget.activeChart().exportData({ includeTime: false, from: Date.UTC(2018, 0, 1) / 1000, to: Date.UTC(2018, 1, 1) / 1000 });
// Exports all displayed data on the chart
widget.activeChart().exportData({ includeDisplayedValues: true });

Parameters

Name	Type	Description
options?	Partial<ExportDataOptions>	Optional object of options to control the exported data.

Returns

Promise<ExportedData>

A promise that resolves with the exported data.

---

getAllPanesHeight

▸ getAllPanesHeight(): number[]

Get an array of the heigh of all panes.

Example

console.log(widget.activeChart().getAllPanesHeight());

Returns

number[]

An array of heights.

---

getAllShapes

▸ getAllShapes(): EntityInfo[]

Get an array of IDs and name for all drawings on the chart.

Example

widget.activeChart().getAllShapes().forEach(({ name }) => console.log(name));

Returns

EntityInfo[]

An array of drawing information.

---

getAllStudies

▸ getAllStudies(): EntityInfo[]

Get an array of IDs and names for all studies on the chart.

Example

widget.activeChart().getAllStudies().forEach(({ name }) => console.log(name));

Returns

EntityInfo[]

An array of study information.

---

getCheckableActionState

▸ getCheckableActionState(actionId): boolean

Get the state of a checkable action.

Example

if (widget.activeChart().getCheckableActionState("drawingToolbarAction")) {
    // ...
};

Parameters

Name	Type	Description
actionId	ChartActionId	An action ID.

Returns

boolean

true if the action is checked, false otherwise.

---

getPanes

▸ getPanes(): IPaneApi[]

Get an array of API objects for interacting with the chart panes.

Example

widget.activeChart().getPanes()[1].moveTo(0);

Returns

IPaneApi[]

---

getPriceToBarRatio

▸ getPriceToBarRatio(): number

Get the chart's price to bar ratio.

Example

console.log(widget.activeChart().getPriceToBarRatio());

Returns

number

The ratio or null if no ratio is defined.

---

getSeries

▸ getSeries(): ISeriesApi

Get the main series.

Example

widget.activeChart().getSeries().setVisible(false);

Returns

ISeriesApi

An API object for interacting with the main series.

---

getShapeById

▸ getShapeById(entityId): ILineDataSourceApi

Get a drawing by ID.

Example

widget.activeChart().getShapeById(id).bringToFront();

Parameters

Name	Type	Description
entityId	EntityId	A drawing ID.

Returns

ILineDataSourceApi

An API object for interacting with the drawing.

---

getStudyById

▸ getStudyById(entityId): IStudyApi

Get a study by ID.

Example

widget.activeChart().getStudyById(id).setVisible(false);

Parameters

Name	Type	Description
entityId	EntityId	The study ID.

Returns

IStudyApi

An API object for interacting with the study.

---

getTimeScale

▸ getTimeScale(): ITimeScaleApi

Get an API object for interacting with the timescale.

Example

var time = widget.activeChart().getTimeScale().coordinateToTime(100);

Returns

ITimeScaleApi

---

getTimezoneApi

▸ getTimezoneApi(): ITimezoneApi

Get an API object for interacting with the chart timezone.

Returns

ITimezoneApi

---

getVisibleRange

▸ getVisibleRange(): VisibleTimeRange

Get the current visible time range.

Example

console.log(widget.activeChart().getVisibleRange());

Returns

VisibleTimeRange

---

isMaximized

▸ isMaximized(): boolean

Check if the chart is maximized or not.

Returns

boolean

true if maximized, false otherwise.

---

isPriceToBarRatioLocked

▸ isPriceToBarRatioLocked(): boolean

Get the locked/unlocked state of the chart's price to bar ratio.

Example

console.log(widget.activeChart().isPriceToBarRatioLocked());

Returns

boolean

---

isSelectBarRequested

▸ isSelectBarRequested(): boolean

Check if bar selection mode is active or not.

Example

var isRequested = widget.activeChart().isSelectBarRequested();

Returns

boolean

true if active, false otherwise.

---

loadChartTemplate

▸ loadChartTemplate(templateName): Promise<void>

Load and apply a chart template.

Parameters

Name	Type	Description
templateName	string	The name of the template to load.

Returns

Promise<void>

---

marketStatus

▸ marketStatus(): IWatchedValueReadonly<MarketStatus>

Get a readonly watched value that can be used to read/subscribe to the state of the chart's market status.

Returns

IWatchedValueReadonly<MarketStatus>

---

maximizeChart

▸ maximizeChart(): void

Maximize to its full size currently selected chart.

Example

widget.activeChart().maximizeChart();

Returns

void

---

onChartTypeChanged

▸ onChartTypeChanged(): ISubscription<(chartType: SeriesType) => void>

Get a subscription object for the chart type changing.

Example

widget.activeChart().onChartTypeChanged().subscribe(
    null,
    (chartType) => console.log('The type of chart is changed')
);

Returns

ISubscription<(chartType: SeriesType) => void>

A subscription object for the chart type changing.

---

onDataLoaded

▸ onDataLoaded(): ISubscription<() => void>

Get a subscription object for new data being loaded for the chart.

Example

widget.activeChart().onDataLoaded().subscribe(
    null,
    () => console.log('New history bars are loaded'),
    true
);

Returns

ISubscription<() => void>

A subscription object for new data loaded for the chart.

---

onHoveredSourceChanged

▸ onHoveredSourceChanged(): ISubscription<(sourceId: EntityId) => void>

Get a subscription object for the ID of the study or series hovered by the crosshair.

Returns

ISubscription<(sourceId: EntityId) => void>

A subscription object for the ID of the study or series hovered by the crosshair. Subscribers will be called with null if there is no study or series hovered.

---

onIntervalChanged

▸ onIntervalChanged(): ISubscription<(interval: ResolutionString, timeFrameParameters: { timeframe?: TimeFrameValue }) => void>

Get a subscription object for the chart resolution (interval) changing. This method also allows you to track whether the chart's date range is changed. The timeframe argument represents if a user clicks on the time frame toolbar or changes the date range manually. If timeframe is undefined, you can change a date range before data loading starts. To do this, you can specify a time frame value or a certain date range.

Examples

The following code sample specifies a time frame value:

widget.activeChart().onIntervalChanged().subscribe(null, (interval, timeframeObj) =>
    timeframeObj.timeframe = {
        value: "12M",
        type: "period-back"
});

The following code sample specifies a certain date range:

widget.activeChart().onIntervalChanged().subscribe(null, (interval, timeframeObj) =>
    timeframeObj.timeframe = {
        from: new Date('2015-01-01').getTime() / 1000,
        to: new Date('2017-01-01').getTime() / 1000,
        type: "time-range"
    });

Returns

ISubscription<(interval: ResolutionString, timeFrameParameters: { timeframe?: TimeFrameValue }) => void>

A subscription object for the chart interval (resolution) changing.

---

onSymbolChanged

▸ onSymbolChanged(): ISubscription<() => void>

Get a subscription object for the chart symbol changing.

Example

widget.activeChart().onSymbolChanged().subscribe(null, () => console.log('The symbol is changed'));

Returns

ISubscription<() => void>

A subscription object for when a symbol is resolved (ie changing resolution, timeframe, currency, etc.)

---

onVisibleRangeChanged

▸ onVisibleRangeChanged(): ISubscription<(range: VisibleTimeRange) => void>

Get a subscription object for the chart's visible range changing.

Example

widget.activeChart().onVisibleRangeChanged().subscribe(
    null,
    ({ from, to }) => console.log(from, to)
);

Returns

ISubscription<(range: VisibleTimeRange) => void>

A subscription object for the chart's visible range changing.

---

priceFormatter

▸ priceFormatter(): INumberFormatter

Returns the object with 'format' function that you can use to format the prices.

widget.activeChart().priceFormatter().format(123);

Returns

INumberFormatter

---

refreshMarks

▸ refreshMarks(): void

Force the chart to re-request all bar marks and timescale marks.

Example

widget.activeChart().refreshMarks();

Returns

void

---

removeAllShapes

▸ removeAllShapes(): void

Remove all drawings from the chart.

Example

widget.activeChart().removeAllShapes();

Returns

void

---

removeAllStudies

▸ removeAllStudies(): void

Remove all studies from the chart.

Example

widget.activeChart().removeAllStudies();

Returns

void

---

removeEntity

▸ removeEntity(entityId, options?): void

Remove an entity (e.g. drawing or study) from the chart.

Example

widget.activeChart().removeEntity(id);

Parameters

Name	Type	Description
entityId	EntityId	The ID of the entity.
options?	UndoOptions	Optional undo options.

Returns

void

---

requestSelectBar

▸ requestSelectBar(): Promise<number>

Switch the chart to bar selection mode.

Example

widget.activeChart().requestSelectBar()
    .then(function(time) {
        console.log('user selects bar with time', time);
    })
    .catch(function() {
        console.log('bar selection was rejected');
    });

Returns

Promise<number>

A promise that resolves to the timestamp of a bar selected by the user. Rejects if the bar selection was already requested or is cancelled.

---

resetData

▸ resetData(): void

Force the chart to re-request data. Before calling this function the onResetCacheNeededCallback callback from IDatafeedChartApi.subscribeBars should be called.

Example

widget.activeChart().resetData();

Returns

void

---

resolution

▸ resolution(): ResolutionString

Get the current resolution (interval).

Example

console.log(widget.activeChart().resolution());

Returns

ResolutionString

---

restoreChart

▸ restoreChart(): void

Restore to its initial size currently selected chart.

Example

widget.activeChart().restoreChart();

Returns

void

---

selection

▸ selection(): ISelectionApi

Get an API object for interacting with the selection.

Example

widget.activeChart().selection().clear();

Returns

ISelectionApi

---

sendBackward

▸ sendBackward(sources): void

Move the sources one level down in the Z-order.

Example

widget.activeChart().sendBackward([id]);

Parameters

Name	Type	Description
sources	readonly EntityId[]	An array of source IDs.

Returns

void

---

sendToBack

▸ sendToBack(entities): void

Move the group to the bottom of the Z-order.

Example

widget.activeChart().sendToBack([id]);

Parameters

Name	Type
entities	readonly EntityId[]

Returns

void

---

setAllPanesHeight

▸ setAllPanesHeight(heights): void

Set the height for each pane in the order provided.

Example

console.log(widget.activeChart().setAllPanesHeight([250, 400, 200]));

Parameters

Name	Type	Description
heights	readonly number[]	An array of heights.

Returns

void

---

setChartType

▸ setChartType(type, callback?): void

Change the chart's type.

Example

widget.activeChart().setChartType(12); // Specifies the High-low type

Parameters

Name	Type	Description
type	SeriesType	A chart type.
callback?	() => void	An optional callback function. Called when the chart type has changed and data has loaded.

Returns

void

---

setPriceToBarRatio

▸ setPriceToBarRatio(ratio, options?): void

Set the chart's price to bar ratio.

Example

widget.activeChart().setPriceToBarRatio(0.4567, { disableUndo: true });

Parameters

Name	Type	Description
ratio	number	The new price to bar ratio.
options?	UndoOptions	Optional undo options.

Returns

void

---

setPriceToBarRatioLocked

▸ setPriceToBarRatioLocked(value, options?): void

Lock or unlock the chart's price to bar ratio.

Example

widget.activeChart().setPriceToBarRatioLocked(true, { disableUndo: false });

Parameters

Name	Type	Description
value	boolean	true to lock, false to unlock.
options?	UndoOptions	Optional undo options.

Returns

void

---

setResolution

▸ setResolution(resolution, options?): void

Change the chart's interval (resolution).

Example

widget.activeChart().setResolution('2M');

Note: if you are attempting to change multiple charts (multi-chart layouts) at the same time with multiple setResolution calls then you should set doNotActivateChart option to true.

Parameters

Name	Type	Description
resolution	ResolutionString	A resolution.
options?	SetResolutionOptions | () => void	Optional object of options for the new resolution or optional callback that is called when the data for the new resolution has loaded.

Returns

void

---

setScrollEnabled

▸ setScrollEnabled(enabled): void

Enable or disable scrolling of the chart.

Example

widget.activeChart().setScrollEnabled(false);

Parameters

Name	Type	Description
enabled	boolean	true to enable scrolling, false to disable.

Returns

void

---

setSymbol

▸ setSymbol(symbol, options?): void

Change the chart's symbol.

Example

widget.activeChart().setSymbol('IBM');

Note: if you are attempting to change multiple charts (multi-chart layouts) at the same time with multiple setSymbol calls then you should set doNotActivateChart option to true.

Parameters

Name	Type	Description
symbol	string	A symbol.
options?	SetSymbolOptions | () => void	Optional object of options for the new symbol or optional callback that is called when the data for the new symbol has loaded.

Returns

void

---

setTimeFrame

▸ setTimeFrame(timeFrame): void

Set the time frame for this chart.

Note: This action will set this chart as active in a multi-chart layout.

Example To apply the '1Y' timeframe:

tvWidget.setTimeFrame({
  val: { type: 'period-back', value: '12M' },
  res: '1W',
});

Parameters

Name	Type	Description
timeFrame	RangeOptions	Object specifying the range and resolution to be applied

Returns

void

---

setVisibleRange

▸ setVisibleRange(range, options?): Promise<void>

Scroll and/or scale the chart so a time range is visible.

Example

widget.activeChart().setVisibleRange(
    { from: 1420156800, to: 1451433600 },
    { percentRightMargin: 20 }
).then(() => console.log('New visible range is applied'));

Parameters

Name	Type	Description
range	SetVisibleTimeRange	A range that will be made visible.
options?	SetVisibleRangeOptions	Optional object of options for the new visible range.

Returns

Promise<void>

A promise that is resolved when the range has been set.

---

setZoomEnabled

▸ setZoomEnabled(enabled): void

Enable or disable zooming of the chart.

Example

widget.activeChart().setZoomEnabled(false);

Parameters

Name	Type	Description
enabled	boolean	true to enable zooming, false to disable.

Returns

void

---

shapesGroupController

▸ shapesGroupController(): IShapesGroupControllerApi

Get an API object for interacting with groups of drawings.

Example

widget.activeChart().shapesGroupController().createGroupFromSelection();

Returns

IShapesGroupControllerApi

---

showPropertiesDialog

▸ showPropertiesDialog(studyId): void

Show the properties dialog for a study or drawing.

Example

const chart = widget.activeChart();
chart.showPropertiesDialog(chart.getAllShapes()[0].id);`

Parameters

Name	Type	Description
studyId	EntityId	An ID of the study or drawing.

Returns

void

---

symbol

▸ symbol(): string

Get the name of the current symbol.

Example

console.log(widget.activeChart().symbol());

Returns

string

---

symbolExt

▸ symbolExt(): SymbolExt

Get an extended information object for the current symbol.

Example

console.log(widget.activeChart().symbolExt().full_name);

Returns

SymbolExt

---

zoomOut

▸ zoomOut(): void

Zoom out. The method has the same effect as clicking on the "Zoom out" button.

Returns

void