Enum LayoutStrategy 

pub enum LayoutStrategy {
    Auto,
    Clustered,
    LeafOptimized,
    Compact,
}

Directory layout strategy for a PMTiles archive.

The variant selected drives the header clustered flag and (where the writer supports it) whether the root directory is split into leaf directories.

Variants

Auto

Pick a concrete strategy automatically from a LayoutAnalysis.

Resolution rules (see choose_strategy): deduplication-heavy archives become Compact; very large tile counts become LeafOptimized; everything else becomes Clustered.

Clustered

Tiles ordered by tile_id with monotonically non-decreasing data offsets. The archive is streamable and the header clustered flag is set. Best for the common, moderate-sized, low-deduplication case.

LeafOptimized

Split the directory early into leaf directories. Keeps the root directory small for large archives so initial range requests stay cheap. The header clustered flag remains set (the data is still ordered).

Compact

Minimise directory size, favouring run-length / content sharing over strict streamable ordering. Best for small or deduplication-heavy archives. The header clustered flag is cleared.

Trait Implementations

impl Clone for LayoutStrategy

fn clone(&self) -> LayoutStrategy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for LayoutStrategy

impl Debug for LayoutStrategy

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

Formats the value using the given formatter.

impl Default for LayoutStrategy

fn default() -> LayoutStrategy

Returns the “default value” for a type.

impl Eq for LayoutStrategy

impl PartialEq for LayoutStrategy

fn eq(&self, other: &LayoutStrategy) -> 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 LayoutStrategy