Module style 

Style/runtime model for style-document-driven map construction.

This module provides a small engine-owned style runtime inspired by MapLibre’s style system. It covers Rustial’s current source families and a broader style-layer taxonomy, while lowering geometry-centric layers onto the existing engine primitives (BackgroundLayer, HillshadeLayer, TileLayer, VectorLayer, and ModelLayer).

Structs

BackgroundStyleLayer

Background layer style spec.

CanvasSource

Canvas source — georeferenced dynamic overlay driven by a FrameProvider.

CircleStyleLayer

Circle layer style spec.

ComputedFog

Pre-computed fog parameters ready for GPU uniform upload.

FillExtrusionStyleLayer

Fill extrusion layer style spec.

FillStyleLayer

Fill layer style spec.

FogConfig

User-facing fog/atmosphere configuration.

GeoJsonSource

In-memory vector feature source with optional point clustering.

HeatmapStyleLayer

Heatmap layer style spec.

HillshadeStyleLayer

Hillshade layer style spec.

ImageSource

Image source lowered onto raster rendering.

LineStyleLayer

Line layer style spec.

MapStyle

Mutable runtime wrapper around a StyleDocument.

ModelSource

In-memory model source.

ModelStyleLayer

Model layer style spec.

RasterSource

Raster tile source entry.

RasterStyleLayer

Raster/tile layer style spec.

StyleDocument

A style document containing source registry, ordered layers, and optional terrain source.

StyleEvalContext

Runtime evaluation context for paint/layout values.

StyleEvalContextFull

Extended evaluation context that carries per-feature mutable state alongside the current zoom level.

StyleLayerMeta

Shared style-layer metadata.

SymbolStyleLayer

Symbol layer style spec.

TerrainSource

Terrain source entry.

VectorStyleLayer

Legacy generic vector style spec.

VectorTileSource

Vector-tile-like feature source.

VideoSource

Video source — georeferenced dynamic overlay driven by a FrameProvider.

Enums

StyleError

Style/runtime errors.

StyleLayer

Supported style-layer variants.

StyleProjection

Top-level style-owned projection selection.

StyleSource

Source registry entry.

StyleSourceKind

Enumerates style/runtime source families.

Traits

FromFeatureStateProperty

Conversion from a PropertyValue stored in feature-state to a concrete style value type.

StyleInterpolatable

Interpolation behaviour for style values.

Functions

atmospheric_clear_color

Blend base toward a slightly lifted “horizon” colour as pitch increases past 0.25 rad.

circle_style_with_state

Resolve a CircleStyleLayer’s paint properties with per-feature state.

compute_fog

Compute fog parameters from camera state and optional user config.

fill_extrusion_style_with_state

Resolve a FillExtrusionStyleLayer’s paint properties with per-feature state.

fill_style_with_state

Resolve a FillStyleLayer’s paint properties with per-feature state.

heatmap_style_with_state

Resolve a HeatmapStyleLayer’s paint properties with per-feature state.

line_style_with_state

Resolve a LineStyleLayer’s paint properties with per-feature state.

symbol_style_with_state

Resolve a SymbolStyleLayer’s paint properties with per-feature state.

vector_style_with_state

Resolve a VectorStyleLayer’s paint properties with per-feature state.

Type Aliases

RasterSourceFactory

Factory for constructing a fresh raster tile source when a style document is applied.

StyleLayerId

A style layer identifier.

StyleSourceId

A style source identifier.

StyleValue

Type alias for backward compatibility.

TerrainSourceFactory

Factory for constructing a fresh terrain elevation source when a style document is applied.

VectorTileSourceFactory

Factory for constructing a fresh streamed vector tile source when a style document is applied.