Struct PriceMap 

pub struct PriceMap { /* private fields */ }

Per-frame price-to-pixel mapping.

Unclamped: a price outside the visible range maps outside the pane, and the painter’s clip rect clips it.

Implementations

impl PriceMap

pub fn new( transform: PriceTransform, range: PriceRange, top: f32, bottom: f32, inverted: bool, ) -> Self

Maps range (scale units) onto top..bottom (points), the low end at the bottom unless inverted.

pub fn with_bounds(self, top: f32, bottom: f32) -> Self

Uses the same scale, orientation and formatting in a different vertical plot area.

pub fn with_price_precision(self, decimals: Option<u8>) -> Self

Sets the price precision for this frame.

pub fn with_tick_marks(self, config: PriceMarkGeneratorConfig) -> Self

Sets how marks spaces the tick marks.

pub fn marks(&self) -> Vec<PriceMark>

Tick marks for the visible range, spaced by the scale’s tick_marks settings. The labels of a chart’s maps write prices of four or more integer digits with its ChartConfig::thousands_sep.

pub fn price_precision(&self) -> Option<usize>

Supplied price decimals, or None to derive them from the tick step. Percentage and indexed axes keep their own precision.

pub fn transform(&self) -> PriceTransform

Returns the price transform.

pub fn range(&self) -> PriceRange

Returns the visible range in scale units.

pub fn price_to_y(&self, price: f64) -> f32

Converts a price to a y coordinate.

pub fn y_to_price(&self, y: f32) -> f64

Converts a y coordinate to a price.

pub fn translate_price(&self, price: f64, from_y: f32, to_y: f32) -> f64

Translates a price by the scale-unit offset between two y coordinates.

Equal y coordinates keep valid prices exactly unchanged. Non-positive logarithmic prices start from their bounded off-pane coordinate.

Trait Implementations

impl Clone for PriceMap

fn clone(&self) -> PriceMap

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for PriceMap

impl Debug for PriceMap

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for PriceMap

fn eq(&self, other: &PriceMap) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for PriceMap