class anychart.scales.GanttDateTime Improve this Doc
Extends: anychart.core.Base
The GanttDateTime class contains methods for configuring DateTime scale on the Gantt chart.
Methods Overview
| Specific settings | |
| getRange() | Gets minimum and maximum visible dates set for a scale. |
| getTotalRange() | Gets total minimum and maximum dates set for a scale. |
| inverseTransform() | Processes reverse transformation of the ratio backward to value. |
| maximum() | Scale maximum. |
| maximumGap() | Maximum gap settings. |
| minimum() | Scale minimum. |
| minimumGap() | Minimum gap settings. |
| softMaximum() | Soft maximum settings. |
| softMinimum() | Soft minimum settings. |
| transform() | Transforms values to ratio. |
| zoomLevels() | Zoom level 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
getRange
Gets minimum and maximum visible dates set for a scale.
Returns:
Object.<string, number> - An object with min and max keys.Try it:
getTotalRange
Gets total minimum and maximum dates set for a scale.
Returns:
Object.<string, number> - An object with min and max keys.Try it:
inverseTransform
Processes reverse transformation of the ratio backward to value.
Params:
| Name | Type | Description |
|---|---|---|
| ratio | number | Ratio to transform. |
Returns:
number - Ratio transformed to timestamp.Try it:
listen
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.
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(e:Object) | 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.Try it:
listenOnce
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).
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(e:Object) | 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.Try it:
maximum
Getter for the scale maximum.
Returns:
number - The scale maximum value. See listing
var scale = chart.xScale(); var maxValue = scale.maximum();
Setter for the scale maximum.
Params:
| Name | Type | Description |
|---|---|---|
| maximum | number | Scale maximum value to set. |
Returns:
anychart.scales.GanttDateTime - Self instance for method chaining.Try it:
maximumGap
Getter for the maximum gap.
Returns:
number - The maximum gap value.Setter for the maximum gap.
Params:
| Name | Type | Description |
|---|---|---|
| gap | number | Gap value to be set. |
Returns:
anychart.scales.GanttDateTime - Self instance for method chaining.Try it:
minimum
Getter for the scale minimum.
Returns:
number - The scale minimum value. See listing
var scale = chart.xScale(); var minValue = scale.minimum();
Setter for the scale minimum.
Params:
| Name | Type | Description |
|---|---|---|
| minimum | number | Scale minimum value to set. |
Returns:
anychart.scales.GanttDateTime - Self instance for method chaining.Try it:
minimumGap
Getter for the minimum gap.
Returns:
number - The minimum gap value.Setter for the minimum gap.
Params:
| Name | Type | Description |
|---|---|---|
| gap | number | Gap value to be set. |
Returns:
anychart.scales.GanttDateTime - Self instance for method chaining.Try it:
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.Try it:
softMaximum
Getter for the scale soft maximum.
Returns:
number - The soft maximum value. See listing
var scale = chart.xScale(); var softMax = scale.softMaximum();
Setter for the scale soft maximum.
Params:
| Name | Type | Description |
|---|---|---|
| maximum | number | Soft maximum value to set. |
Returns:
anychart.scales.GanttDateTime - Self instance for method chaining.Try it:
softMinimum
Getter for the scale soft minimum.
Returns:
number - The soft minimum value. See listing
var scale = chart.xScale(); var softMin = scale.softMinimum();
Setter for the scale soft minimum.
Params:
| Name | Type | Description |
|---|---|---|
| minimum | number | Soft minimum value to set. |
Returns:
anychart.scales.GanttDateTime - Self instance for method chaining.Try it:
transform
Transforms values to ratio.
Params:
| Name | Type | Description |
|---|---|---|
| value | * | Value to transform. |
Returns:
number - Value to ratio.Try it:
unlisten
Removes a listener added using listen() or listenOnce() methods.
Params:
| Name | Type | Default | Description |
|---|---|---|---|
| type | string | The event type id. | |
| listener | function(e:Object):boolean|undefined | 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.Try it:
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.Try it:
zoomLevels
Getter for zoom levels settings.
Returns:
anychart.scales.GanttDateTime.ZoomLevelsSettings - Zoom levels settingsSetter for zoom levels settings.
The method sets the sets of labels by which the heder is built.
The method sets the sets of labels by which the heder is built.
Params:
| Name | Type | Description |
|---|---|---|
| settings | anychart.scales.GanttDateTime.ZoomLevelsSettings | Zoom levels settings to set. |
Returns:
anychart.scales.GanttDateTime - Self instance for method chaining.Try it: