Struct rasterize::ActiveEdgeRasterizer

pub struct ActiveEdgeRasterizer { /* fields omitted */ }

Active-Edge rasterizer

This method is based on the data stracture Edge-Table which keeps all lines ordered by lower y coordinate, and then scanning over all pixels line by line, once lower pixel of a line is reached line is activated and put into Active-Edge-Table, and later deactivated once once scan line convers point with the highest y coordinate.

Reference: Computer graphics principles and practice (by Foley) 3.6 Filling Polygons.

Implementations

impl ActiveEdgeRasterizer

pub fn new(flatness: Scalar) -> Self

Trait Implementations

impl Default for ActiveEdgeRasterizer

fn default() -> Self

Returns the “default value” for a type.

impl Rasterizer for ActiveEdgeRasterizer

fn mask(
    &self,
    path: &Path,
    tr: Transform,
    img: &mut dyn ImageMut<Pixel = Scalar>,
    fill_rule: FillRule
)

Rasterize provided path as mask with transformation applied, and specified fill rule.

fn mask_iter(
    &self,
    path: &Path,
    tr: Transform,
    size: Size,
    fill_rule: FillRule
) -> Box<dyn Iterator<Item = Pixel>>

Iterator over rasterized mask pixels

fn name(&self) -> &str

Name of the rasterizer (usefull for debugging)

fn fill(
    &self,
    path: &Path,
    tr: Transform,
    fill_rule: FillRule,
    paint: &dyn Paint,
    img: &mut dyn ImageMut<Pixel = LinColor>
)

Fill path with the provided paint