Struct OhlcLayout 

pub struct OhlcLayout {
    pub price_min: f64,
    pub price_max: f64,
    pub count: usize,
    pub slot: f32,
    pub body_half: f32,
    /* private fields */
}

The price→pixel mapping for a candlestick chart: where each bar’s x-centre sits, the body half-width, and a y_of(price) closure source. Pure data so it can be asserted without a painter.

Fields

price_min: f64

price_max: f64

count: usize

slot: f32

body_half: f32

Implementations

impl OhlcLayout

pub fn new(plot: Rect, price_min: f64, price_max: f64, count: usize) -> Self

Build the layout for count bars in plot, given the price range.

pub fn x_center(&self, i: usize) -> f32

X-centre of bar i.

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

Map a price to a y pixel (higher price → higher on screen).

pub fn bar_at_x(&self, x: f32) -> Option<usize>

Which bar index (if any) the x coordinate falls in.

Trait Implementations

impl Clone for OhlcLayout

fn clone(&self) -> OhlcLayout

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for OhlcLayout

impl Debug for OhlcLayout

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

Formats the value using the given formatter.