Crate ezu_paint 

Paint MVT features onto a raster canvas.

Three painting primitives are exposed:

• paint_polygons — tiny-skia solid fill + optional outline + libblur gaussian blur. Fast path for large patches.
• paint_polygons_dabs — hokusai scatter-dab fill with world-deterministic jitter (seamless across tile boundaries).
• paint_lines — hokusai::Brush::stroke_to along polylines.

These are the building blocks for the graph nodes in nodes; the host-side glue (PNG encoding, asset loading) lives in host.

All painting happens on a Canvas that optionally wraps a padded buffer (tile_size + 2 * pad). Paint operations work in the padded space; cropping happens at the host boundary.

Re-exports

pub use brush::BrushDefaults;

pub use dabs::paint_polygons_dabs;

pub use dabs::DabFillStyle;

pub use strokes::paint_lines;

pub use strokes::LineStrokeStyle;

Modules

brush

Extract paint-friendly defaults from a hokusai Brush.

color_interp

Colour-space stop interpolation (re-exported from ezu-core so the paint nodes and the MapLibre converter share one implementation). Colour-stop interpolation in a selectable colour space.

dabs

Hokusai-backed dab scatter fill.

host

A raster canvas backed by a premultiplied RGBA Pixmap.

legend

Rendering a legend entry’s swatch.

nodes

Node implementations for the graph evaluator. One file per op.

render

Feature filtering and collection helpers shared by feature-source nodes (features).

strokes

Polyline watercolor stroking via hokusai::Brush::stroke_to.

Structs

Brush

Canvas

RgbaF32

StrokeStyle

Style for a crisp vector stroke (contrast with paint_lines, which is a painterly hokusai brush).

WatercolorStyle

Style for a watercolor polygon layer.

Enums

PaintError

Functions

paint_polygons

Paint a collection of MVT polygons onto a fresh transparent layer, blur it, and composite it over canvas (source-over).

paint_strokes

Stroke MVT polylines with a crisp, constant-width tiny-skia line onto a fresh layer, then composite over canvas. Coordinates are MVT tile-local ([0, extent], y-down), scaled to tile size and offset by the pad.