# Class: Scale<O>
# Type parameters
| Name | Type |
|---|---|
O | extends CoreScaleOptions = CoreScaleOptions |
# Hierarchy
default<unknown,O>-
↳
Scale↳↳
TimeScale
# Constructors
# constructor
• new Scale<O>(cfg)
# Type parameters
| Name | Type |
|---|---|
O | extends CoreScaleOptions = CoreScaleOptions |
# Parameters
| Name | Type |
|---|---|
cfg | Object |
cfg.chart | Chart<keyof ChartTypeRegistry, (number | [number, number] | Point | BubbleDataPoint)[], unknown> |
cfg.ctx | CanvasRenderingContext2D |
cfg.id | string |
cfg.type | string |
# Inherited from
Element<unknown, O>.constructor
# Defined in
types/index.d.ts:1375 (opens new window)
# Properties
# $animations
• $animations: Record<never, Animation>
# Inherited from
Element.$animations
# Defined in
core/core.element.ts:15 (opens new window)
# active
• active: boolean = false
# Inherited from
Element.active
# Defined in
core/core.element.ts:13 (opens new window)
# axis
• axis: string
# Defined in
types/index.d.ts:1276 (opens new window)
# bottom
• bottom: number
Bottom edge of the item. Set by layout system and cannot be used in update
# Inherited from
# Defined in
types/layout.d.ts:41 (opens new window)
# chart
• Readonly chart: Chart<keyof ChartTypeRegistry, (number | [number, number] | Point | BubbleDataPoint)[], unknown>
# Defined in
types/index.d.ts:1266 (opens new window)
# ctx
• Readonly ctx: CanvasRenderingContext2D
# Defined in
types/index.d.ts:1265 (opens new window)
# fullSize
• fullSize: boolean
if true, and the item is horizontal, then push vertical boxes down
# Inherited from
# Defined in
types/layout.d.ts:17 (opens new window)
# height
• height: number
Height of item. Must be valid after update()
# Inherited from
# Defined in
types/layout.d.ts:25 (opens new window)
# id
• Readonly id: string
# Defined in
types/index.d.ts:1263 (opens new window)
# labelRotation
• labelRotation: number
# Defined in
types/index.d.ts:1277 (opens new window)
# left
• left: number
Left edge of the item. Set by layout system and cannot be used in update
# Inherited from
# Defined in
types/layout.d.ts:29 (opens new window)
# max
• max: number
# Defined in
types/index.d.ts:1279 (opens new window)
# maxHeight
• maxHeight: number
# Defined in
types/index.d.ts:1269 (opens new window)
# maxWidth
• maxWidth: number
# Defined in
types/index.d.ts:1268 (opens new window)
# min
• min: number
# Defined in
types/index.d.ts:1278 (opens new window)
# options
• options: O
# Inherited from
Element.options
# Defined in
core/core.element.ts:14 (opens new window)
# paddingBottom
• paddingBottom: number
# Defined in
types/index.d.ts:1272 (opens new window)
# paddingLeft
• paddingLeft: number
# Defined in
types/index.d.ts:1273 (opens new window)
# paddingRight
• paddingRight: number
# Defined in
types/index.d.ts:1274 (opens new window)
# paddingTop
• paddingTop: number
# Defined in
types/index.d.ts:1271 (opens new window)
# position
• position: LayoutPosition
The position of the item in the chart layout. Possible values are
# Inherited from
# Defined in
types/layout.d.ts:9 (opens new window)
# right
• right: number
Right edge of the item. Set by layout system and cannot be used in update
# Inherited from
# Defined in
types/layout.d.ts:37 (opens new window)
# ticks
• ticks: Tick[]
# Defined in
types/index.d.ts:1280 (opens new window)
# top
• top: number
Top edge of the item. Set by layout system and cannot be used in update
# Inherited from
# Defined in
types/layout.d.ts:33 (opens new window)
# type
• Readonly type: string
# Defined in
types/index.d.ts:1264 (opens new window)
# weight
• weight: number
The weight used to sort the item. Higher weights are further away from the chart area
# Inherited from
# Defined in
types/layout.d.ts:13 (opens new window)
# width
• width: number
Width of item. Must be valid after update()
# Inherited from
# Defined in
types/layout.d.ts:21 (opens new window)
# x
• x: number
# Inherited from
Element.x
# Defined in
core/core.element.ts:11 (opens new window)
# y
• y: number
# Inherited from
Element.y
# Defined in
core/core.element.ts:12 (opens new window)
# Methods
# afterBuildTicks
▸ afterBuildTicks(): void
# Returns
void
# Defined in
types/index.d.ts:1361 (opens new window)
# afterCalculateLabelRotation
▸ afterCalculateLabelRotation(): void
# Returns
void
# Defined in
types/index.d.ts:1367 (opens new window)
# afterDataLimits
▸ afterDataLimits(): void
# Returns
void
# Defined in
types/index.d.ts:1358 (opens new window)
# afterFit
▸ afterFit(): void
# Returns
void
# Defined in
types/index.d.ts:1370 (opens new window)
# afterSetDimensions
▸ afterSetDimensions(): void
# Returns
void
# Defined in
types/index.d.ts:1355 (opens new window)
# afterTickToLabelConversion
▸ afterTickToLabelConversion(): void
# Returns
void
# Defined in
types/index.d.ts:1364 (opens new window)
# afterUpdate
▸ afterUpdate(): void
# Returns
void
# Defined in
types/index.d.ts:1352 (opens new window)
# beforeBuildTicks
▸ beforeBuildTicks(): void
# Returns
void
# Defined in
types/index.d.ts:1359 (opens new window)
# beforeCalculateLabelRotation
▸ beforeCalculateLabelRotation(): void
# Returns
void
# Defined in
types/index.d.ts:1365 (opens new window)
# beforeDataLimits
▸ beforeDataLimits(): void
# Returns
void
# Defined in
types/index.d.ts:1356 (opens new window)
# beforeFit
▸ beforeFit(): void
# Returns
void
# Defined in
types/index.d.ts:1368 (opens new window)
# beforeLayout
▸ Optional beforeLayout(): void
Called before the layout process starts
# Returns
void
# Inherited from
# Defined in
types/layout.d.ts:46 (opens new window)
# beforeSetDimensions
▸ beforeSetDimensions(): void
# Returns
void
# Defined in
types/index.d.ts:1353 (opens new window)
# beforeTickToLabelConversion
▸ beforeTickToLabelConversion(): void
# Returns
void
# Defined in
types/index.d.ts:1362 (opens new window)
# beforeUpdate
▸ beforeUpdate(): void
# Returns
void
# Defined in
types/index.d.ts:1350 (opens new window)
# buildTicks
▸ buildTicks(): Tick[]
# Returns
Tick[]
# Defined in
types/index.d.ts:1360 (opens new window)
# calculateLabelRotation
▸ calculateLabelRotation(): void
# Returns
void
# Defined in
types/index.d.ts:1366 (opens new window)
# configure
▸ configure(): void
# Returns
void
# Defined in
types/index.d.ts:1351 (opens new window)
# determineDataLimits
▸ determineDataLimits(): void
# Returns
void
# Defined in
types/index.d.ts:1357 (opens new window)
# draw
▸ draw(chartArea): void
Draws the element
# Parameters
| Name | Type |
|---|---|
chartArea | ChartArea |
# Returns
void
# Inherited from
# Defined in
types/layout.d.ts:50 (opens new window)
# drawGrid
▸ drawGrid(chartArea): void
# Parameters
| Name | Type |
|---|---|
chartArea | ChartArea |
# Returns
void
# Defined in
types/index.d.ts:1285 (opens new window)
# drawLabels
▸ drawLabels(chartArea): void
# Parameters
| Name | Type |
|---|---|
chartArea | ChartArea |
# Returns
void
# Defined in
types/index.d.ts:1284 (opens new window)
# drawTitle
▸ drawTitle(chartArea): void
# Parameters
| Name | Type |
|---|---|
chartArea | ChartArea |
# Returns
void
# Defined in
types/index.d.ts:1283 (opens new window)
# fit
▸ fit(): void
# Returns
void
# Defined in
types/index.d.ts:1369 (opens new window)
# generateTickLabels
▸ generateTickLabels(ticks): void
# Parameters
| Name | Type |
|---|---|
ticks | Tick[] |
# Returns
void
# Defined in
types/index.d.ts:1363 (opens new window)
# getBasePixel
▸ getBasePixel(): number
Returns the pixel for the minimum chart value The coordinate (0, 0) is at the upper-left corner of the canvas
# Returns
number
# Defined in
types/index.d.ts:1341 (opens new window)
# getBaseValue
▸ getBaseValue(): number
# Returns
number
# Defined in
types/index.d.ts:1335 (opens new window)
# getDecimalForPixel
▸ getDecimalForPixel(pixel): number
# Parameters
| Name | Type |
|---|---|
pixel | number |
# Returns
number
# Defined in
types/index.d.ts:1291 (opens new window)
# getLabelForValue
▸ getLabelForValue(value): string
Used to get the label to display in the tooltip for the given value
# Parameters
| Name | Type |
|---|---|
value | number |
# Returns
string
# Defined in
types/index.d.ts:1311 (opens new window)
# getLabelItems
▸ getLabelItems(chartArea?): LabelItem[]
# Parameters
| Name | Type |
|---|---|
chartArea? | ChartArea |
# Returns
# Defined in
types/index.d.ts:1349 (opens new window)
# getLabels
▸ getLabels(): string[]
# Returns
string[]
# Defined in
types/index.d.ts:1348 (opens new window)
# getLineWidthForValue
▸ getLineWidthForValue(value): number
Returns the grid line width at given value
# Parameters
| Name | Type |
|---|---|
value | number |
# Returns
number
# Defined in
types/index.d.ts:1316 (opens new window)
# getMatchingVisibleMetas
▸ getMatchingVisibleMetas(type?): ChartMeta<keyof ChartTypeRegistry, default<AnyObject, AnyObject>, default<AnyObject, AnyObject>>[]
# Parameters
| Name | Type |
|---|---|
type? | string |
# Returns
ChartMeta<keyof ChartTypeRegistry, default<AnyObject, AnyObject>, default<AnyObject, AnyObject>>[]
# Defined in
types/index.d.ts:1281 (opens new window)
# getMinMax
▸ getMinMax(canStack): Object
# Parameters
| Name | Type |
|---|---|
canStack | boolean |
# Returns
Object
| Name | Type |
|---|---|
max | number |
min | number |
# Defined in
types/index.d.ts:1346 (opens new window)
# getPadding
▸ Optional getPadding(): ChartArea
Returns an object with padding on the edges
# Returns
# Inherited from
# Defined in
types/layout.d.ts:54 (opens new window)
# getPixelForDecimal
▸ getPixelForDecimal(decimal): number
Utility for getting the pixel location of a percentage of scale The coordinate (0, 0) is at the upper-left corner of the canvas
# Parameters
| Name | Type |
|---|---|
decimal | number |
# Returns
number
# Defined in
types/index.d.ts:1298 (opens new window)
# getPixelForTick
▸ getPixelForTick(index): number
Returns the location of the tick at the given index The coordinate (0, 0) is at the upper-left corner of the canvas
# Parameters
| Name | Type |
|---|---|
index | number |
# Returns
number
# Defined in
types/index.d.ts:1305 (opens new window)
# getPixelForValue
▸ getPixelForValue(value, index?): number
Returns the location of the given data point. Value can either be an index or a numerical value The coordinate (0, 0) is at the upper-left corner of the canvas
# Parameters
| Name | Type |
|---|---|
value | number |
index? | number |
# Returns
number
# Defined in
types/index.d.ts:1325 (opens new window)
# getProps
▸ getProps<P>(props, final?): Pick<unknown, P[number]>
Gets the current or final value of each prop. Can return extra properties (whole object).
# Type parameters
| Name | Type |
|---|---|
P | extends never[] |
# Parameters
| Name | Type | Description |
|---|---|---|
props | P | properties to get |
final? | boolean | get the final value (animation target) |
# Returns
Pick<unknown, P[number]>
# Inherited from
Element.getProps
# Defined in
core/core.element.ts:31 (opens new window)
▸ getProps<P>(props, final?): Partial<Record<P, unknown>>
# Type parameters
| Name | Type |
|---|---|
P | extends string |
# Parameters
| Name | Type |
|---|---|
props | P[] |
final? | boolean |
# Returns
Partial<Record<P, unknown>>
# Inherited from
Element.getProps
# Defined in
core/core.element.ts:32 (opens new window)
# getTicks
▸ getTicks(): Tick[]
# Returns
Tick[]
# Defined in
types/index.d.ts:1347 (opens new window)
# getUserBounds
▸ getUserBounds(): Object
# Returns
Object
| Name | Type |
|---|---|
max | number |
maxDefined | boolean |
min | number |
minDefined | boolean |
# Defined in
types/index.d.ts:1345 (opens new window)
# getValueForPixel
▸ getValueForPixel(pixel): number
Used to get the data value from a given pixel. This is the inverse of getPixelForValue The coordinate (0, 0) is at the upper-left corner of the canvas
# Parameters
| Name | Type |
|---|---|
pixel | number |
# Returns
number
# Defined in
types/index.d.ts:1333 (opens new window)
# hasValue
▸ hasValue(): boolean
# Returns
boolean
# Inherited from
Element.hasValue
# Defined in
core/core.element.ts:22 (opens new window)
# init
▸ init(options): void
# Parameters
| Name | Type |
|---|---|
options | O |
# Returns
void
# Defined in
types/index.d.ts:1343 (opens new window)
# isFullSize
▸ isFullSize(): boolean
# Returns
boolean
# Defined in
types/index.d.ts:1372 (opens new window)
# isHorizontal
▸ isHorizontal(): boolean
returns true if the layout item is horizontal (ie. top or bottom)
# Returns
boolean
# Inherited from
# Defined in
types/layout.d.ts:58 (opens new window)
# parse
▸ parse(raw, index?): unknown
# Parameters
| Name | Type |
|---|---|
raw | unknown |
index? | number |
# Returns
unknown
# Defined in
types/index.d.ts:1344 (opens new window)
# setDimensions
▸ setDimensions(): void
# Returns
void
# Defined in
types/index.d.ts:1354 (opens new window)
# tooltipPosition
▸ tooltipPosition(useFinalPosition): Point
# Parameters
| Name | Type |
|---|---|
useFinalPosition | boolean |
# Returns
# Inherited from
Element.tooltipPosition
# Defined in
core/core.element.ts:17 (opens new window)
# update
▸ update(width, height, margins?): void
Takes two parameters: width and height.
# Parameters
| Name | Type |
|---|---|
width | number |
height | number |
margins? | ChartArea |
# Returns
void