Struct BezierRetainedSignedAreaRoleReport2 

pub struct BezierRetainedSignedAreaRoleReport2 { /* private fields */ }

Exact orientation-derived role assignment for native retained Bezier loops.

This report is broader than BezierRetainedLineRegionRoleReport2: it accepts native polynomial Bezier and rational quadratic conic loops whenever their exact Green-integral signed area is implemented and nonzero. It is intentionally narrower than full curved-loop nesting: it assigns roles from the authored loop orientation only, returns the signed areas as evidence, and rejects algebraic, unresolved, zero-area, or unsupported-area loops. That keeps the construction/decision boundary explicit in Yap’s sense; see Yap, “Towards Exact Geometric Computation,” Computational Geometry 7(1-2), 3-23 (1997). The signed-area evidence comes from Green’s theorem and Bernstein/rational Bezier identities as described by Farin, Curves and Surfaces for CAGD (5th ed., 2002).

Implementations

impl BezierRetainedSignedAreaRoleReport2

pub fn new( roles: Vec<BezierRetainedRegionLoopRole>, signed_areas: Vec<Real>, ) -> CurveResult<Self>

Constructs a retained signed-area role report.

pub fn with_loop_arrangement_sources( self, loop_arrangement_sources: Vec<Option<Vec<BezierRetainedFragmentSource2>>>, ) -> CurveResult<Self>

Attaches one optional arrangement source trail per retained loop.

pub fn roles(&self) -> &[BezierRetainedRegionLoopRole]

Returns one assigned role per retained boundary loop.

pub fn signed_areas(&self) -> &[Real]

Returns exact signed areas used as orientation evidence.

pub fn loop_arrangement_sources( &self, ) -> Option<&[Option<Vec<BezierRetainedFragmentSource2>>]>

Returns per-loop arrangement/source provenance when the report has it.

pub fn material_loop_indices(&self) -> Vec<usize>

Returns loop indices assigned as material.

pub fn hole_loop_indices(&self) -> Vec<usize>

Returns loop indices assigned as holes.

Trait Implementations

impl Clone for BezierRetainedSignedAreaRoleReport2

fn clone(&self) -> BezierRetainedSignedAreaRoleReport2

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BezierRetainedSignedAreaRoleReport2

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

Formats the value using the given formatter.

impl PartialEq for BezierRetainedSignedAreaRoleReport2

fn eq(&self, other: &BezierRetainedSignedAreaRoleReport2) -> 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 StructuralPartialEq for BezierRetainedSignedAreaRoleReport2