Enum EdgeMode 

pub enum EdgeMode {
    Duplicate,
    Wrap,
    Mirror,
    None,
}

Edge mode for filter operations.

Determines how to extend the input image when filter operations require sampling beyond the original image boundaries. This is particularly important for blur and convolution operations near edges.

See: https://drafts.fxtf.org/filter-effects/#element-attrdef-filter-primitive-edgemode

Variants

Duplicate

Extend by duplicating edge pixels (clamp to edge).

The input image is extended along each border by replicating the color values at the given edge of the input image. This prevents dark halos around edges.

Wrap

Extend by wrapping to the opposite edge (repeat/tile).

The input image is extended by taking color values from the opposite edge, creating a tiling effect.

Mirror

Extend by mirroring across the edge.

The input image is extended by taking color values mirrored across the edge. This creates seamless continuation at boundaries.

None

Extend with transparent black (zeros).

The input image is extended with pixel values of zero for R, G, B and A. This is the default and most common mode, creating natural fade-to-transparent edges.

Trait Implementations

impl Clone for EdgeMode

fn clone(&self) -> EdgeMode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EdgeMode

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

Formats the value using the given formatter.

impl Default for EdgeMode

fn default() -> EdgeMode

Returns the “default value” for a type.

impl PartialEq for EdgeMode

fn eq(&self, other: &EdgeMode) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for EdgeMode

impl Eq for EdgeMode

impl StructuralPartialEq for EdgeMode