Struct Stamp 

pub struct Stamp {
    pub shape: Shape,
    pub at: Vec<Point>,
    pub paint: Paint,
    pub stroke: Option<StrokeStyle>,
}

The payload of DrawOp::Stamp: one shape drawn at every position in at.

A scatter plot is the case this exists for. Drawn as individual ops, fifty thousand points are fifty thousand DrawOps, rebuilt, compared and cloned on every frame that re-records, before a backend draws anything. As one Stamp they are one op and a flat array of coordinates, and a backend can put every copy into one path and hand the rasterizer a single fill.

Every copy shares the shape, the size and the paint. Varying any of those means more than one stamp: group by what varies, which for a chart is usually the series color.

Fields

shape: Shape

The template, authored around the origin: each copy is this shape translated by one point. A 6-point dot is Shape::Ellipse(Rect::new(-3.0, -3.0, 6.0, 6.0)).

at: Vec<Point>

Where the copies go. Order is the drawing order, so later points paint over earlier ones.

paint: Paint

stroke: Option<StrokeStyle>

None fills each copy; Some strokes it with this style.

Trait Implementations

impl Clone for Stamp

fn clone(&self) -> Stamp

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Stamp

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

Formats the value using the given formatter.

impl PartialEq for Stamp

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Stamp