Enum RegionRefusal 

pub enum RegionRefusal {
    NoSuchRegion(RegionId),
    SameRegion(RegionId),
    NotAdjacent(RegionId, RegionId),
    PathTooShort,
    NotAnEdgeOfTheRegion(u32, u32),
    DoesNotCut {
        pieces: usize,
    },
    ConstraintDoesNotApply {
        kind: SurfaceKind,
        constraint: &'static str,
    },
    InvalidRadius(f64),
    TooFewVertices {
        kind: SurfaceKind,
        needed: usize,
        found: usize,
    },
    NoFit(SurfaceKind),
    DoesNotVerify {
        kind: SurfaceKind,
        deviation: f64,
        distance: f64,
    },
    TriangleOffTheSurface {
        kind: SurfaceKind,
        triangle: usize,
    },
    NotADisk,
    TooNarrowForAPatch,
    PatchDoesNotVerify,
}

Why a step on the regions was refused. The regions are unchanged.

Variants

NoSuchRegion(RegionId)

No region has this name, or it holds no triangle (a merge retired it).

SameRegion(RegionId)

A region cannot be merged with itself.

NotAdjacent(RegionId, RegionId)

The two regions share no mesh edge.

PathTooShort

A path needs at least two vertices.

NotAnEdgeOfTheRegion(u32, u32)

Two consecutive vertices of the path are not the ends of an edge of the region’s triangles.

DoesNotCut

Cut along the path, the region falls into this many pieces, not two.

Fields

pieces: usize

How many pieces the path leaves.

ConstraintDoesNotApply

The kind of surface has no such thing to hold fixed.

Fields

kind: SurfaceKind

The kind asked for.

constraint: &'static str

The constraint, "axis" or "radius".

InvalidRadius(f64)

A fixed radius that is not a finite positive distance.

TooFewVertices

The region has too few vertices to determine the kind.

Fields

kind: SurfaceKind

The kind asked for.

needed: usize

How many it needs.

found: usize

How many the region has.

NoFit(SurfaceKind)

No surface of the kind could be fitted to the vertices at all.

DoesNotVerify

The fitted surface misses a vertex by more than the coplanar distance.

Fields

kind: SurfaceKind

The kind asked for.

deviation: f64

The worst distance from a vertex to it.

distance: f64

The coplanar distance it had to be within.

TriangleOffTheSurface

A triangle’s middle stands off the fitted surface by more than its sag allows: its corners are on the surface and it spans off it.

Fields

kind: SurfaceKind

The kind asked for.

triangle: usize

The triangle, an index into MeshRegions::triangles.

NotADisk

A patch needs a region that is one disk bounded by one loop; this one has a hole or touches itself.

TooNarrowForAPatch

Too few of the region’s vertices lie inside its boundary to hold a patch across it.

PatchDoesNotVerify

No patch fitted to the region passed the verification: within the coplanar distance of every vertex and across every triangle, its normal agreeing with theirs.

Trait Implementations

impl Clone for RegionRefusal

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RegionRefusal

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

Formats the value using the given formatter.

impl Display for RegionRefusal

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

Formats the value using the given formatter.

impl Error for RegionRefusal

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for RegionRefusal

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for RegionRefusal