Struct Tile01Encoder 

pub struct Tile01Encoder {
    pub sort_strategy: Option<SortStrategy>,
}

Entry-point encoder that converts a TileLayer01 into a StagedLayer01 and optionally reorders features according to a SortStrategy.

For automatic sort-strategy selection, use Tile01Encoder::encode_auto.

Fields

sort_strategy: Option<SortStrategy>

How to reorder features before columnar staging. None preserves the original input order.

Implementations

impl Tile01Encoder

pub fn encode(&self, data: &mut TileLayer01) -> StagedLayer01

Reorder features in data according to the configured sort strategy (no-op when sort_strategy is None), then convert to StagedLayer01.

pub fn encode_auto( source: &TileLayer01, ) -> Result<(EncodedLayer01, StagedLayer01Encoder), MltError>

Automatically select the best sort strategy and stream-level encoders by competitive trialing.

Algorithm

1. Build a candidate set: [None, Some(Spatial(Morton)), Some(Id)].
   • When N >= 512, apply a bounding-box heuristic: if the vertex spread covers more than 80% of the tile extent on both axes, spatial sorting is unlikely to cluster features and is dropped from the candidates.
2. For each candidate strategy:
   • Clone the source layer.
   • Apply reorder_features to the clone.
   • Convert the clone to StagedLayer01 and run automatic stream-level optimisation on id, geometry, and properties.
   • Serialise the fully-encoded clone to a scratch buffer and record its byte count.
3. Return the trial that produced the smallest byte count.

Trait Implementations

impl Clone for Tile01Encoder

fn clone(&self) -> Tile01Encoder

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Tile01Encoder

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

Formats the value using the given formatter.

impl Default for Tile01Encoder

fn default() -> Tile01Encoder

Returns the “default value” for a type.