Class StyleExpression

A single parsed show / color / define expression.

Index

Constructors

Methods

evaluate evaluateBool evaluateColor

Constructors

constructor

new StyleExpression(
source: string,
defines?: Record<string, StyleExpression>,
): StyleExpression
Parameters
- source: string
- defines: Record<string, StyleExpression> = {}
Returns StyleExpression
- Defined in src/geo/tile_style.ts:375

Methods

evaluate

evaluate(props: StyleProperties): Value
Evaluate against a feature's property bag.
Parameters
- props: StyleProperties
Returns Value
- Defined in src/geo/tile_style.ts:380

evaluateBool

evaluateBool(props: StyleProperties): boolean
Evaluate and coerce to a boolean (for show).
Parameters
- props: StyleProperties
Returns boolean
- Defined in src/geo/tile_style.ts:385

evaluateColor

evaluateColor(props: StyleProperties): [number, number, number, number]
Evaluate and coerce to RGBA 0–1 (for color). Non-color results become white.
Parameters
- props: StyleProperties
Returns [number, number, number, number]
- Defined in src/geo/tile_style.ts:390