Struct ScaleSet 

pub struct ScaleSet { /* private fields */ }

Registry of all scales for a plot. Handles auto-detection and training.

Implementations

impl ScaleSet

pub fn new() -> Self

pub fn add(&mut self, scale: Box<dyn Scale>)

Add a user-specified scale.

pub fn get(&self, aes: &Aesthetic) -> Option<&dyn Scale>

Get a scale for a specific aesthetic.

pub fn get_mut(&mut self, aes: &Aesthetic) -> Option<&mut Box<dyn Scale>>

Get mutable scale for a specific aesthetic.

pub fn ensure_scale(&mut self, aes: &Aesthetic, data: &DataFrame)

Ensure a scale exists for a given aesthetic. Auto-detect type from data.

pub fn train_layer(&mut self, data: &DataFrame)

Train all scales on data from one layer.

pub fn map_value(&self, aes: &Aesthetic, value: &Value) -> f64

Map a single value through the appropriate scale.

pub fn map_color(&self, aes: &Aesthetic, value: &Value) -> Option<(u8, u8, u8)>

Map a value to an RGB color through the appropriate color/fill scale.

pub fn map_shape(&self, value: &Value) -> Option<PointShape>

Map a value to a point shape through the shape scale.

pub fn map_linetype(&self, value: &Value) -> Option<Linetype>

Map a value to a linetype through the linetype scale.

pub fn map_size(&self, value: &Value) -> Option<f64>

Map a value to a point size through the size scale.

pub fn map_alpha(&self, value: &Value) -> Option<f64>

Map a value to an alpha (opacity) through the alpha scale.

pub fn set_limits(&mut self, aes: &Aesthetic, min: f64, max: f64)

Override the domain limits for a scale (used by coord_cartesian zoom).

pub fn sec_axis(&self, aes: &Aesthetic) -> Option<&SecAxis>

Get the secondary axis for an aesthetic, if one exists.

pub fn iter(&self) -> impl Iterator<Item = &dyn Scale>

Get all scales.

Trait Implementations

impl Clone for ScaleSet

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for ScaleSet

fn default() -> Self

Returns the “default value” for a type.