Struct PolygonSlicerOne 

pub struct PolygonSlicerOne<V: PolyVertex = Coord<i32>, A = ()> { /* private fields */ }

Slices integer polygons into pieces for one fixed tile, keeping original vertices.

The polygon counterpart to SlicerOne: each polygon added is clipped only to this slicer’s tile. Generic over the PolyVertex type V (default Coord<i32>) and the per-feature attribute A (default ()).

Implementations

impl<V: PolyVertex, A> PolygonSlicerOne<V, A>

pub fn new(extent: u32, buffer: u16, tile: TileId) -> Result<Self, TileError>

Create a slicer bound to tile, with the given tile side / per-tile output resolution extent and buffer (same coordinate model as SlicerOne).

Errors

• TileError::InvalidExtent if extent is 0 or greater than i32::MAX.
• TileError::BufferTooLarge if buffer is not strictly less than half the extent.

pub fn extent(&self) -> u32

The tile side / per-tile output resolution.

pub fn buffer(&self) -> u16

The buffer kept around the tile, in tile-space units.

pub fn tile(&self) -> TileId

The tile this slicer clips into.

pub fn add_feature_with( &mut self, exterior: &[V], holes: &[&[V]], attr: A, ) -> Result<&mut Self, TileError>

Add one polygon — exterior ring plus holes — as an independent feature carrying attr, clipped to this slicer’s tile. Chainable. Recorded only if the exterior survives in the tile; otherwise attr is dropped. Rings may be given open or closed (a repeated first/last vertex is fine).

When A = (), prefer add_feature.

Atomic: on error the accumulator is unchanged.

Errors

• TileError::Overflow if the tile’s box, a synthetic corner, or a kept vertex overflows i32.
• TileError::GeometryTooLarge if the tile’s vertices exceed the u32 indexing of the storage.

pub fn iter_features(&self) -> impl Iterator<Item = PolygonView<'_, V, A>>

Iterate the tile’s polygon features that reach it, in the order added, each as the PolygonView of its clipped rings and attr.

pub fn len(&self) -> usize

Number of polygon features accumulated for the tile.

pub fn is_empty(&self) -> bool

Whether nothing has been accumulated yet.

pub fn clear(&mut self)

Discard everything accumulated, keeping the extent/buffer/tile config and buffer capacity.

impl<V: PolyVertex> PolygonSlicerOne<V, ()>

pub fn add_feature( &mut self, exterior: &[V], holes: &[&[V]], ) -> Result<&mut Self, TileError>

Add one polygon (exterior + holes) with no attribute — shorthand for add_feature_with(…, ()). Available only when A = ().

Errors

As in add_feature_with.

Trait Implementations

impl<V: Clone + PolyVertex, A: Clone> Clone for PolygonSlicerOne<V, A>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<V: Debug + PolyVertex, A: Debug> Debug for PolygonSlicerOne<V, A>

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

Formats the value using the given formatter.

impl<V: Eq + PolyVertex, A: Eq> Eq for PolygonSlicerOne<V, A>

impl<V: PartialEq + PolyVertex, A: PartialEq> PartialEq for PolygonSlicerOne<V, A>

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

Equality operator ==.

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

Inequality operator !=.

impl<V: PartialEq + PolyVertex, A: PartialEq> StructuralPartialEq for PolygonSlicerOne<V, A>