vega-functions

Function implementations for the Vega expression language. Unlike the basic utility functions included in the vega-expression package, this package includes custom expression functions, many of which are specific to Vega dataflows.

Provided Functions

This package provides the following expression functions. All other constants and functions are provided by the base vega-expression package.

Type Checking Functions

- isArray
- isBoolean
- isDate
- isNumber
- isObject
- isRegExp
- isString
- isTuple

Type Coercion Functions

- toBoolean
- toDate
- toNumber
- toString

Math Functions

- random

Date/Time Functions

- quarter
- utcquarter

Array Functions

- clampRange
- extent
- inrange
- lerp
- peek
- sequence
- span

String Functions

- pad
- truncate

Object Functions

- merge

Formatting Functions

- format
- utcFormat
- utcParse
- timeFormat
- timeParse
- monthFormat
- monthAbbrevFormat
- dayFormat
- dayAbbrevFormat

Color Functions

- rgb
- lab
- hcl
- hsl

Event Functions

- pinchDistance
- pinchAngle
- inScope

Scale and Projection Functions

- bandspace
- bandwidth
- copy
- domain
- gradient
- invert
- range
- scale
- panLinear
- panLog
- panPow
- panSymlog
- zoomLinear
- zoomLog
- zoomPow
- zoomSymlog
- flush (used internally for axis and legend label layout)

Geographic Functions

- geoArea
- geoBounds
- geoCentroid
- geoScale

Shape Functions

- geoShape (used internally for mark clipping)
- pathShape (used internally for mark clipping)

Data Functions

- indata
- data
- setdata (used internally for scale domain data)
- modify (used internally for trigger updates)

Dataflow Functions

- encode (used internally for signal updates)

Tree (Hierarchy) Functions

- treePath
- treeAncestors

Browser Functions

- screen
- containerSize
- windowSize

Logging Functions

- warn
- info
- debug