Struct HalftoneScreen 

pub struct HalftoneScreen {
    pub frequency: f64,
    pub angle: f64,
    pub type4_tokens: Option<Arc<Vec<u8>>>,
    pub sampled_2d: Option<Arc<Vec<f64>>>,
}

A pre-computed halftone screen for PDF output.

Fields

frequency: f64

angle: f64

type4_tokens: Option<Arc<Vec<u8>>>

Spot function as PDF Type 4 calculator bytes (e.g., b“{ dup mul exch dup mul add 1 exch sub }“). None if conversion failed (falls back to sampled_2d).

sampled_2d: Option<Arc<Vec<f64>>>

Spot function sampled on a 64×64 grid (4096 f64 values, domain [-1,1]², range [0,1]). Used when Type 4 decompilation fails.

Trait Implementations

impl Clone for HalftoneScreen

fn clone(&self) -> HalftoneScreen

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HalftoneScreen

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

Formats the value using the given formatter.