Struct HLine 

pub struct HLine {
    pub id: ShapeId,
    pub y: f64,
    pub transform: Option<Transform>,
    pub label: Option<String>,
    pub color: Color,
    pub line_style: LineStyle,
}

A horizontal line at a fixed y-coordinate.

Fields

id: ShapeId

Unique identifier for the line.

y: f64

The y-coordinate where the horizontal line is drawn.

transform: Option<Transform>

How to interpret or convert the y value before drawing.

label: Option<String>

Optional label for the line (appears in legend if provided).

color: Color

Color of the line.

line_style: LineStyle

Line styling options, including width and pattern (solid, dashed, dotted).

Implementations

impl HLine

pub fn new(y: f64) -> Self

Create a new horizontal line at the given y-coordinate.

pub fn with_label(self, label: impl Into<String>) -> Self

Set the label for this line (will appear in legend).

pub fn with_color(self, color: Color) -> Self

Set the color of the line.

pub fn with_transform(self, transform: Transform) -> Self

Set how this reference line interprets or converts its y value before drawing.

For normal data values, conversion runs before the plot’s y-axis scale. Transform::axes() uses normalized plot positions instead.

pub fn with_axes_transform(self) -> Self

Interpret the y position as a normalized plot coordinate.

pub fn with_width(self, width: f32) -> Self

Set the line width in pixels.

pub fn with_width_world(self, width: f64) -> Self

Set the line width in world units.

pub fn with_style(self, style: LineStyle) -> Self

Set the line style.

pub fn with_line_type(self, line_type: LineType) -> Self

Set only the line type while preserving the current width.

Trait Implementations

impl Clone for HLine

fn clone(&self) -> HLine

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HLine

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

Formats the value using the given formatter.