sayoi7799/moon_vegalite/scale

sayoi7799/moon_vegalite/scale does not have a README file

Band

pub struct Band {
  is_point : Bool
  keys : Array[String]
  range : (Double, Double)
  padding_inner : Double
  padding_outer : Double
  align : Double
  round : Bool
  step : Double
  bandwidth : Double
  positions : Array[Double]
}

Band and point scales. A point scale is a band scale with an inner padding of 1 whose padding only changes the outer padding.

Band::band

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fn Band::band() -> Band

Band::map

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fn Band::map(self : Band, v : @sayoi7799/moon_vegalite/value.Value
Value) -> Double?

Start position of the band for a domain value, None if not in the domain.

Band::point

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fn Band::point() -> Band

Band::set_align

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fn Band::set_align(self : Band, a : Double) -> Unit

Band::set_domain

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fn Band::set_domain(self : Band, values : Array[@sayoi7799/moon_vegalite/value.Value
Value]) -> Unit

Set the domain (duplicates are ignored, first occurrence wins).

Band::set_padding

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fn Band::set_padding(self : Band, p : Double) -> Unit

Band::set_padding_inner

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fn Band::set_padding_inner(self : Band, p : Double) -> Unit

Band::set_padding_outer

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fn Band::set_padding_outer(self : Band, p : Double) -> Unit

Band::set_range

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fn Band::set_range(self : Band, r0 : Double, r1 : Double) -> Unit

Band::set_range_round

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fn Band::set_range_round(self : Band, r0 : Double, r1 : Double) -> Unit

rangeRound: set the range and round positions and sizes to integers.

Band::set_round

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fn Band::set_round(self : Band, round : Bool) -> Unit

Continuous

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pub(all) struct Continuous {
  kind : ScaleKind
  domain : Array[Double]
  range : Array[Double]
  clamp : Bool
  round : Bool
}

Continuous::map

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fn Continuous::map(self : Continuous, x : Double) -> Double?

Map a domain value to the range; None for NaN input (d3's unknown).

Continuous::new

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fn Continuous::new(kind : ScaleKind) -> Continuous

Continuous::nice

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fn Continuous::nice(self : Continuous, count? : Double) -> Unit

d3 scale.nice(count): widen the domain to round values.

Continuous::ticks

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fn Continuous::ticks(self : Continuous, count? : Double) -> Array[Double]

Approximately count nice tick values (d3 scale.ticks).

Ordinal

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pub struct Ordinal {
  keys : Array[String]
  range : Array[@sayoi7799/moon_vegalite/value.Value
Value]
}

An ordinal scale: domain values are matched by value_key and the range repeats when it is shorter than the domain.

Ordinal::map

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fn Ordinal::map(self : Ordinal, v : @sayoi7799/moon_vegalite/value.Value
Value) -> @sayoi7799/moon_vegalite/value.Value
Value?

The range value for a domain value; None if unknown (or the range is empty).

Ordinal::new

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fn Ordinal::new() -> Ordinal

Ordinal::set_domain

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fn Ordinal::set_domain(self : Ordinal, values : Array[@sayoi7799/moon_vegalite/value.Value
Value]) -> Unit

Ordinal::set_range

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fn Ordinal::set_range(self : Ordinal, range : Array[@sayoi7799/moon_vegalite/value.Value
Value]) -> Unit

Rgb

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pub struct Rgb {
  r : Double
  g : Double
  b : Double
  opacity : Double
}

An sRGB colour with fractional channels, as d3-color's Rgb.

Rgb::format_rgb

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fn Rgb::format_rgb(self : Rgb) -> String

rgb(r, g, b) (or rgba(r, g, b, a)), channels rounded and clamped, as d3-color's formatRgb.

ScaleKind

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pub(all) enum ScaleKind {
  Linear
  Pow(Double)
  Log(Double)
}

ScaleKind::sqrt

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fn ScaleKind::sqrt() -> ScaleKind

Scheme

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pub enum Scheme {
  Discrete(Array[String])
  Interpolating((Double) -> String)
}

A named colour scheme: a list of colours for ordinal scales, or an interpolator over [0, 1] for continuous ones.

Sequential

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pub(all) struct Sequential {
  scale : Continuous
  interpolator : (Double) -> String
}

A sequential colour scale: a continuous domain mapped to [0, 1] and then through a colour interpolator (d3 scaleSequential).

Sequential::map

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fn Sequential::map(self : Sequential, x : Double) -> String?

Sequential::new

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fn Sequential::new(kind : ScaleKind, interpolator : (Double) -> String) -> Sequential

band_space

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fn band_space(count : Double, padding_inner : Double, padding_outer : Double) -> Double

vega-scale's bandSpace(count, paddingInner, paddingOuter).

interpolate_colors

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fn interpolate_colors(colors : Array[String]) -> ((Double) -> String)

d3's piecewise(interpolateRgb, colors) as built by vega-scale's interpolateColors: spreads the colours evenly over t in [0, 1].

interpolate_range

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fn interpolate_range(interpolator : (Double) -> String, lo : Double, hi : Double) -> ((Double) -> String)

vega-scale's interpolateRange(interpolator, [lo, hi]): restricts an interpolator to a sub-range of [0, 1] (reversed when lo > hi).

interpolate_rgb

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fn interpolate_rgb(a : String, b : String) -> ((Double) -> String)

d3's interpolateRgb(a, b) (gamma 1): a function from t in [0, 1] to an rgb(...) string. Unparsable colours interpolate as NaN channels.

parse_color

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fn parse_color(text : String) -> Rgb?

Parse a CSS colour: #rgb, #rgba, #rrggbb, #rrggbbaa, rgb(r, g, b), rgba(r, g, b, a) (integers or percentages) and the CSS colour keywords.

quantize_interpolator

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fn quantize_interpolator(interpolator : (Double) -> String, count : Int) -> Array[String]

vega-scale's quantizeInterpolator(interpolator, count).

scheme

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fn scheme(name : String) -> Scheme?

Look up a scheme (names are case-insensitive).

scheme_interpolator

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fn scheme_interpolator(name : String) -> (Double) -> String?

The continuous interpolator of a named scheme (vega's scheme(name) for sequential scales), when the scheme has one.

value_key

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fn value_key(v : @sayoi7799/moon_vegalite/value.Value
Value) -> String

A key identifying a domain value the way d3's InternMap does: values of different types never collide (the number 1 and the string "1" differ).

Source Files

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#Band

#Band::band

#Band::map

#Band::point

#Band::set_align

#Band::set_domain

#Band::set_padding

#Band::set_padding_inner

#Band::set_padding_outer

#Band::set_range

#Band::set_range_round

#Band::set_round

#Continuous

#Continuous::map

#Continuous::new

#Continuous::nice

#Continuous::ticks

#Ordinal

#Ordinal::map

#Ordinal::new

#Ordinal::set_domain

#Ordinal::set_range

#Rgb

#Rgb::format_rgb

#ScaleKind

#ScaleKind::sqrt

#Scheme

#Sequential

#Sequential::map

#Sequential::new

#band_space

#interpolate_colors

#interpolate_range

#interpolate_rgb

#parse_color

#quantize_interpolator

#scheme

#scheme_interpolator

#value_key

Source Files

Band

Band::band

Band::map

Band::point

Band::set_align

Band::set_domain

Band::set_padding

Band::set_padding_inner

Band::set_padding_outer

Band::set_range

Band::set_range_round

Band::set_round

Continuous

Continuous::map

Continuous::new

Continuous::nice

Continuous::ticks

Ordinal

Ordinal::map

Ordinal::new

Ordinal::set_domain

Ordinal::set_range

Rgb

Rgb::format_rgb

ScaleKind

ScaleKind::sqrt

Scheme

Sequential

Sequential::map

Sequential::new

band_space

interpolate_colors

interpolate_range

interpolate_rgb

parse_color

quantize_interpolator

scheme

scheme_interpolator

value_key