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freestiler 0.1.0

Initial release.

Tile generation

• freestile() creates PMTiles archives from sf data frames with zero external dependencies (no tippecanoe, no Java, no Go).
• Supports MapLibre Tiles (MLT) and Mapbox Vector Tiles (MVT) output formats.
• Multi-layer output via named lists or freestile_layer() per-layer zoom control.

Geometry types

• POINT, MULTIPOINT, LINESTRING, MULTILINESTRING, POLYGON, MULTIPOLYGON.
• Automatic CRS transformation to WGS84.
• Z/M dimension handling (dropped automatically).

Performance features

• Parallel tile encoding with rayon (across tiles and within tiles).
• Tile-pixel grid snapping for zoom-adaptive simplification without slivers.
• Buffered tile assignment and clipping for seamless tile boundaries.

Feature management

• drop_rate exponential feature thinning with Morton-curve spatial ordering for points and area-based ordering for polygons/lines.
• base_zoom control for ensuring all features present at higher zooms.
• cluster_distance point clustering with point_count attribute.
• coalesce line merging and polygon grouping.

MLT encoder

• Spec-compliant MapLibre Tile encoder with varint, delta, RLE, and dictionary encoding.
• Validated against mlt-core 0.1.2 reference decoder.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.