Struct VectorTileSource 

pub struct VectorTileSource {
    pub data: FeatureCollection,
    pub source_layers: HashMap<String, FeatureCollection>,
    pub factory: Option<VectorTileSourceFactory>,
    pub cache_capacity: usize,
    pub selection: TileSelectionConfig,
}

Vector-tile-like feature source.

Fields

data: FeatureCollection

Flattened features exposed by the source.

This remains for backward compatibility with earlier runtime code that treated vector sources as one resolved feature collection.

source_layers: HashMap<String, FeatureCollection>

Optional source-layer partitioning for style/runtime resolution.

When present, vector style layers may select a specific source layer via their source_layer field, mirroring MapLibre’s source-layer behavior. When absent, the flattened data collection is used.

factory: Option<VectorTileSourceFactory>

Optional streamed tile source factory.

When present, the style/runtime path builds a source-owned hidden tile manager that fetches binary vector tiles at runtime. The in-memory data and source_layers remain available for tests, fallbacks, and backward-compatible resolved-feature workflows.

cache_capacity: usize

Maximum tile-cache capacity for the streamed vector source runtime.

selection: TileSelectionConfig

Tile-selection policy for the streamed vector source runtime.

Implementations

impl VectorTileSource

pub fn new(data: FeatureCollection) -> Self

Create a new vector-tile-like source from resolved features.

pub fn streamed( factory: impl Fn() -> Box<dyn TileSource> + Send + Sync + 'static, ) -> Self

Create a new streamed vector tile source from a tile-source factory.

pub fn from_source_layers( source_layers: HashMap<String, FeatureCollection>, ) -> Self

Create a new vector-tile-like source from named source-layer feature sets.

pub fn with_source_layer( self, name: impl Into<String>, data: FeatureCollection, ) -> Self

Attach a named source layer to this source.

pub fn source_layer(&self, name: &str) -> Option<&FeatureCollection>

Borrow a named source layer if present.

pub fn has_source_layers(&self) -> bool

Return true if this source has explicit source-layer partitioning.

pub fn is_streamed(&self) -> bool

Return true if this source should fetch vector tiles at runtime.

pub fn with_cache_capacity(self, cache_capacity: usize) -> Self

Set streamed tile cache capacity.

pub fn with_selection(self, selection: TileSelectionConfig) -> Self

Set streamed tile-selection policy.

pub fn make_tile_source(&self) -> Option<Box<dyn TileSource>>

Build a fresh runtime tile source if this vector source is streamed.

Trait Implementations

impl Clone for VectorTileSource

fn clone(&self) -> VectorTileSource

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VectorTileSource

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

Formats the value using the given formatter.