class anychart.scales.LinearColor Improve this Doc

Linear color scale. Note: To create instance use anychart.scales#linearColor method.

Methods Overview

Specific settings
colorToValue()	Converts color to value. Returns number ratio by its color.
extendDataRange()	Extends the current input domain with the passed values (if such don't exist in the domain).
finishAutoCalc()	Informs the scale that an auto range calculation started for the chart in past was ended.
getType()	Returns scale type.
inverseTransform()	Returns tick by its position ratio.
inverted()	Inversion state.
maximum()	Scale maximum.
minimum()	Scale minimum.
minorTicks()	Minor ticks settings.
startAutoCalc()	Informs scale that an auto range calculation started for the chart, so it should reset its data range on the first
ticks()	Ticks settings.
transform()	Returns tick position ratio by its name.
valueToColor()	Converts value to color. Returns color ratio by its number.
Coloring
colors()	Linear gradient settings.
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.

Methods Description

colorToValue

colorToValue(value)Since version 7.6.0

Converts color to value. Returns number ratio by its color.

Detailed description

Note: returns correct values only after anychart.scales.Base#finishAutoCalc or chart.draw().

Params:

Name	Type	Description
value	string	Color name or hex color representation.

Returns:

number - Returns value relative passed color.

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Usage sample

colors

colors()Since version 7.6.0

Gets the current linear gradient for the linear color scale.

Returns:

Array.<Object> - The current linear gradient.

colors(var_args)Since version 7.6.0

Sets linear gradient for the linear color scale.

Detailed description

Can be set as single color or gradient as well as array or set of colors or gradients.

Params:

Name	Type	Description
var_args	string \| anychart.graphics.vector.SolidFill \| anychart.graphics.vector.LinearGradientFill \| anychart.graphics.vector.RadialGradientFill \| Array.<(string\|anychart.graphics.vector.SolidFill\|anychart.graphics.vector.LinearGradientFill\|anychart.graphics.vector.RadialGradientFill)>	Colors set.

Returns:

anychart.scales.LinearColor - Self instance for method chaining.

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Usage sample

extendDataRange

extendDataRange(var_args)

Extends the current input domain with the passed values (if such don't exist in the domain).
Note: Attention! anychart.scales.Base#finishAutoCalc drops all passed values.

Params:

Name	Type	Description
var_args	*	Values that are supposed to extend the input domain.

Returns:

anychart.scales.LinearColor - Self instance for method chaining.

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Usage sample

finishAutoCalc

finishAutoCalc(silently)

Informs the scale that an auto range calculation started for the chart in past was ended.

Params:

Name	Type	Description
silently	boolean	If this flag is set, do not dispatch an event if reapplication needed.

Returns:

boolean - If the calculation changed the scale and it needs to be reapplied.

getType

getType()

Returns scale type.

Returns:

string - Scale type.

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Usage sample

inverseTransform

inverseTransform(ratio)

Returns tick by its position ratio.
Note: returns correct values only after anychart.scales.Base#finishAutoCalc or chart.draw().

Params:

Name	Type	Description
ratio	number	Value to transform in input scope.

Returns:

* - Value transformed to output scope.

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Usage sample

inverted

inverted()

Getter for scale inversion.

Returns:

boolean - Current inversion state.

inverted(value)

Setter for scale inversion. If the scale is inverted, axes and series go upside-down or right-to-left instead of bottom-to-top and left-to-right.

Params:

Name	Type	Default	Description
value	boolean	false	Value to set.

Returns:

anychart.scales.LinearColor - Self instance for method chaining.

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Usage sample

listen

listen(type, listener, useCapture, listenerScope)

Adds an event listener to an implementing object.

Detailed description

The listener can be added to an object once, and if it is added one more time, its key will be returned.
Note Notice that if the existing listener is one-off (added using listenOnce), it will cease to be such after calling the listen() method.

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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Usage sample

listenOnce

listenOnce(type, listener, useCapture, listenerScope)

Adds an event listener to an implementing object.

Detailed description

After the event is called, its handler will be deleted.
If the event handler being added already exists, listenOnce will do nothing.
Note In particular, if the handler is already registered using listen(), listenOnce() will not make it one-off. Similarly, if a one-off listener already exists, listenOnce will not change it (it wil remain one-off).

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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Usage sample

maximum

maximum()

Getter for the current scale maximum.

Returns:

number - Current scale maximum.

maximum(value)

Setter for scale maximum.

Params:

Name	Type	Default	Description
value	number	null	Value to set.

Returns:

anychart.scales.LinearColor - Self instance for method chaining.

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Usage sample

minimum

minimum()

Getter for the current scale minimum.

Returns:

number - Current scale minimum.

minimum(value)

Setter for scale minimum.

Params:

Name	Type	Default	Description
value	number	null	Value to set.

Returns:

anychart.scales.LinearColor - Self instance for method chaining.

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Usage sample

minorTicks

minorTicks()Since version 7.6.0

Gets the current set of scale minor ticks in terms of data values.

Returns:

anychart.scales.ScatterTicks - The current set ticks.

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Usage sample

minorTicks(value)Since version 7.6.0

Sets a set of scale minor ticks in terms of data values.

Params:

Name	Type	Default	Description
value	Object \| Array	false	An array or object of ticks to set.

Returns:

anychart.scales.LinearColor - Self instance for method chaining.

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removeAllListeners

removeAllListeners(type)

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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Usage sample

startAutoCalc

startAutoCalc()

Informs scale that an auto range calculation started for the chart, so it should reset its data range on the first call of this method if needed.

Returns:

anychart.scales.LinearColor - Chaining.

ticks

ticks()Since version 7.6.0

Gets the current set of scale ticks in terms of data values.

Returns:

anychart.scales.ScatterTicks - The current set ticks.

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Usage sample

ticks(value)Since version 7.6.0

Sets a set of scale ticks in terms of data values.

Params:

Name	Type	Default	Description
value	Object \| Array	false	An array or object of ticks to set.

Returns:

anychart.scales.LinearColor - Self instance for method chaining.

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transform

transform(value)

Returns tick position ratio by its name.
Note: returns correct values only after anychart.scales.Base#finishAutoCalc or chart.draw().

Params:

Name	Type	Description
value	*	Value to transform in input scope.

Returns:

number - Value transformed to scope [0, 1].

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Usage sample

unlisten

unlisten(type, listener, useCapture, listenerScope)

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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Usage sample

unlistenByKey

unlistenByKey(key)

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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Usage sample

valueToColor

valueToColor(value)Since version 7.6.0

Converts value to color. Returns color ratio by its number.

Detailed description

Note: returns correct values only after anychart.scales.Base#finishAutoCalc or chart.draw().

Params:

Name	Type	Description
value	number	Value to convert.

Returns:

string - Returns color in hex representation relative passed value.

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Usage sample