Enum WindingRule 

pub enum WindingRule {
    Positive,
    Nonzero,
}

Which winding numbers count as solid material.

The robust engine labels every cell of the arrangement with a winding number per operand; this rule turns that integer into “inside” or “outside”. It is a robust-engine semantic only — the exact engine has no winding labels to reinterpret and ignores the rule entirely.

Variants

Positive

w >= 1 (default). Inside-out geometry (negative winding) is not material, so an inverted region of a self-intersecting scan is discarded — the mathematically standard interpretation of orientation.

Nonzero

w != 0. Inside-out geometry is kept as solid, matching the intent of scans and CAD exports whose shells are wound inconsistently. Chosen per call for models where dropping the inverted chunk is not what the user wants.

Trait Implementations

impl Clone for WindingRule

fn clone(&self) -> WindingRule

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for WindingRule

impl Debug for WindingRule

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

Formats the value using the given formatter.

impl Default for WindingRule

fn default() -> WindingRule

Returns the “default value” for a type.

impl Eq for WindingRule

impl Hash for WindingRule

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for WindingRule

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for WindingRule