Struct vega_lite_4::SchemeParamsBuilder

pub struct SchemeParamsBuilder { /* private fields */ }

Builder for SchemeParams.

Implementations

impl SchemeParamsBuilder

pub fn count<VALUE: Into<f64>>(&mut self, value: VALUE) -> &mut Self

The number of colors to use in the scheme. This can be useful for scale types such as "quantize", which use the length of the scale range to determine the number of discrete bins for the scale domain.

pub fn extent<VALUE: Into<Vec<f64>>>(&mut self, value: VALUE) -> &mut Self

The extent of the color range to use. For example [0.2, 1] will rescale the color scheme such that color values in the range [0, 0.2) are excluded from the scheme.

pub fn name<VALUE: Into<String>>(&mut self, value: VALUE) -> &mut Self

A color scheme name for ordinal scales (e.g., "category10" or "blues").

For the full list of supported schemes, please refer to the Vega Scheme reference.

pub fn expr<VALUE: Into<String>>(&mut self, value: VALUE) -> &mut Self

Vega expression (which can refer to Vega-Lite parameters).

pub fn build(&self) -> Result<SchemeParams, SchemeParamsBuilderError>

Builds a new SchemeParams.

Errors

If a required field has not been initialized.

Trait Implementations

impl Clone for SchemeParamsBuilder

fn clone(&self) -> SchemeParamsBuilder

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Default for SchemeParamsBuilder

fn default() -> Self

Returns the “default value” for a type.