Struct PatchShadingParams 

pub struct PatchShadingParams {
    pub patches: Vec<ShadingPatch>,
    pub ctm: Matrix,
    pub bbox: Option<[f64; 4]>,
    pub color_space: ShadingColorSpace,
    pub overprint: bool,
    pub painted_channels: u8,
    pub color_lut: Option<Arc<Vec<DeviceColor>>>,
    pub alpha: f64,
    pub blend_mode: u8,
    pub alpha_is_shape: bool,
}

Parameters for Coons/tensor-product patch mesh shading (Types 6 & 7).

New fields may be added without notice; pattern-matching consumers should use .. to ignore unmatched fields.

Fields

patches: Vec<ShadingPatch>

ctm: Matrix

bbox: Option<[f64; 4]>

color_space: ShadingColorSpace

overprint: bool

painted_channels: u8

color_lut: Option<Arc<Vec<DeviceColor>>>

When present, vertex raw_colors[i][0] holds a normalized [0,1] function input. The renderer interpolates this per-pixel, then indexes the LUT for per-pixel non-linear function evaluation.

alpha: f64

Fill alpha from graphics state (0.0–1.0). Default 1.0.

blend_mode: u8

Blend mode (0=Normal, …, 15=Luminosity). Default 0.

alpha_is_shape: bool

PDF AIS (alpha-is-shape). Default false.

Trait Implementations

impl Clone for PatchShadingParams

fn clone(&self) -> PatchShadingParams

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PatchShadingParams

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

Formats the value using the given formatter.

impl Default for PatchShadingParams

fn default() -> Self

Returns the “default value” for a type.