Struct LineImagePattern 

pub struct LineImagePattern<F: PatternFilter> { /* private fields */ }

Image pattern for line rendering.

Port of C++ line_image_pattern<Filter>. Stores a copy of the pattern image extended with dilation borders for the filter to access neighboring pixels.

Implementations

impl<F: PatternFilter> LineImagePattern<F>

pub fn new() -> Self

Create an empty pattern with the specified filter type.

pub fn with_source<S: ImagePatternSource>(src: &S) -> Self

Create a pattern initialized from a source.

pub fn create<S: ImagePatternSource>(&mut self, src: &S)

Initialize or reinitialize the pattern from a source image.

Port of C++ line_image_pattern::create.

pub fn pattern_width(&self) -> i32

Pattern width in subpixel coordinates (for repeating).

pub fn line_width(&self) -> i32

Line width in subpixel coordinates (half-height of pattern).

pub fn width(&self) -> f64

Width in floating-point (returns height, matching C++ behavior).

pub fn pixel(&self, p: &mut Rgba8, x: i32, y: i32)

Get a pixel from the pattern at the given subpixel coordinates.

Port of C++ line_image_pattern::pixel.

Trait Implementations

impl<F: PatternFilter> ImageLinePattern for LineImagePattern<F>

fn pattern_width(&self) -> i32

Pattern width in subpixel coordinates (for repeating).

fn line_width(&self) -> i32

Line width in subpixel coordinates (half-height of pattern).

fn width(&self) -> f64

Width in floating-point (returns height, matching C++ behavior).

fn pixel(&self, p: &mut Rgba8, x: i32, y: i32)

Get a pixel from the pattern at the given subpixel coordinates.