Struct rasterize::ActiveEdgeRasterizer

pub struct ActiveEdgeRasterizer { /* private fields */ }

Active-Edge rasterizer

This method is based on the data structure 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 covers 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 Clone for ActiveEdgeRasterizer

fn clone(&self) -> ActiveEdgeRasterizer

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ActiveEdgeRasterizer

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

Formats the value using the given formatter.

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 (useful 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