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class anychart.core.VisualBase Improve this Doc

Extends: anychart.core.Base

Base class for all elements.

Methods Overview

Events
listen()Adds an event listener.
listenOnce()Adds a single time event listener.
removeAllListeners()Removes all listeners.
unlisten()Removes the listener.
unlistenByKey()Removes the listener by the key.
Export
print()Prints all elements.
Interactivity
enabled()Element state (enabled or disabled).
Size and Position
zIndex()Z-index of the element.

Methods Description

enabled

Getter for the current element state (enabled or disabled).

Returns:

boolean - The current element state.

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Setter for the element enabled state.

Params:

Name Type Default Description
value boolean
true
Value to set.

Returns:

anychart.core.VisualBase - Self instance for method chaining.
Example.
if (!element.enabled())
   element.enabled(true);

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listen

Adds an event listener to an implementing object.

Params:

Name Type Default Description
type string
The event type id.
listener function
Callback method. Function that looks like function(event){ // event.actualTarget - actual event target // event.currentTarget - current event target // event.iterator - event iterator // event.originalEvent - original event // event.point - event point // event.pointIndex - event point index }.
useCapture boolean
false
Whether to fire in capture phase. Learn more about capturing https://javascript.info/bubbling-and-capturing
listenerScope Object
Object in whose scope to call the listener.

Returns:

Object - Unique key for the listener.

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listenOnce

Adds an event listener to an implementing object.

Params:

Name Type Default Description
type string
The event type id.
listener function
Callback method.
useCapture boolean
false
Whether to fire in capture phase. Learn more about capturing https://javascript.info/bubbling-and-capturing
listenerScope Object
Object in whose scope to call the listener.

Returns:

Object - Unique key for the listener.

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print

Prints all elements on related stage.

Params:

Name Type Default Description
paperSizeOrOptions anychart.graphics.vector.PaperSize | Object
Paper size or object with options.
landscape boolean
false
Flag of landscape.

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removeAllListeners

Removes all listeners from an object. You can also optionally remove listeners of some particular type.

Params:

Name Type Description
type string Type of event to remove, default is to remove all types.

Returns:

number - Number of listeners removed.

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unlisten

Removes a listener added using listen() or listenOnce() methods.

Params:

Name Type Default Description
type string
The event type id.
listener function
Callback method.
useCapture boolean
false
Whether to fire in capture phase. Learn more about capturing https://javascript.info/bubbling-and-capturing
listenerScope Object
Object in whose scope to call the listener.

Returns:

boolean - Whether any listener was removed.

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unlistenByKey

Removes an event listener which was added with listen() by the key returned by listen() or listenOnce().

Params:

Name Type Description
key Object The key returned by listen() or listenOnce().

Returns:

boolean - Whether any listener was removed.

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zIndex

Getter for the current Z-index of the element.

Returns:

number - The current zIndex.

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Setter for the Z-index of the element.

Params:

Name Type Default Description
value number
0
Value to set.

Returns:

anychart.core.VisualBase - Self instance for method chaining.

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