ScaleSpec

ScaleSpec = object

Defined in: spec/scale.ts:54

One channel’s mapping from data values to visual positions.

Every field is optional: an omitted kind lets the renderer infer one from the field’s type, and an omitted domain lets it read the extent off the data. Nothing here is expressed in output units — see ScaleKind.

Properties

base?

optional base?: number

Defined in: spec/scale.ts:72

Base for "log". Default 10.

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clamp?

optional clamp?: boolean

Defined in: spec/scale.ts:66

Clamps out-of-domain values to the nearest bound instead of dropping them.

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domain?

optional domain?: readonly Value[]

Defined in: spec/scale.ts:60

Explicit domain. Absent means “derive it from the data”, which is what a renderer normally does.

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exponent?

optional exponent?: number

Defined in: spec/scale.ts:70

Exponent for "pow". Default 1.

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kind?

optional kind?: ScaleKind

Defined in: spec/scale.ts:55

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nice?

optional nice?: boolean

Defined in: spec/scale.ts:64

Rounds a derived numeric domain outward to human-readable bounds.

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padding?

optional padding?: number

Defined in: spec/scale.ts:74

Fraction of a band left empty between adjacent bands. 0 to 1.

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reverse?

optional reverse?: boolean

Defined in: spec/scale.ts:68

Reverses the direction of the mapping.

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scheme?

optional scheme?: ColorSchemeSpec

Defined in: spec/scale.ts:76

Colour channels only.

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zero?

optional zero?: boolean

Defined in: spec/scale.ts:62

Extends a derived numeric domain to include zero.