Skip to main content
WebGPUpartial

What's New

October 2026​

  • Labels take their font from text-font instead of a fixed Monaco, monospace: each font name maps to a CSS family list with a generic fallback, plus a weight and style (Noto Sans Bold is "Noto Sans", sans-serif at weight 700). BasemapLayer's new fontFamily prop overrides the family, or maps the font names with a function; fontFamily: 'Monaco, monospace' keeps the previous look.
  • Symbol layers draw icon-image from the style's sprite (@2x on high-density screens, the [{id, url}] sprite array, icon-size, icon-opacity, icon-anchor, icon-offset, and icon-color for SDF images). Labels honor text-offset and text-anchor. Missing sprites and images are skipped with a warning.
  • line-width is drawn as the style sets it: the OpenMapTiles-specific scaling (0.55 for transportation/boundary, 0.75 for waterway/aeroway) is removed, a width of 0 draws nothing, and wide lines are no longer capped at 20 px.
  • Style evaluation uses @maplibre/maplibre-gl-style-spec instead of @mapbox/mapbox-gl-style-spec. Evaluated colors keep the same [r, g, b, a] shape (RGB 0-255, alpha 0-1).
  • Style layers draw within their own minzoom/maxzoom only. A source's maxzoom no longer hides layers past it; its last tiles are overzoomed instead.
  • Zoom-dependent style values are evaluated in 0.25 zoom steps instead of at integer zooms, so widths and colors no longer jump a whole zoom level at a time. Tiles regenerate at each step. Filtered features are kept per tile and style layer and reused across steps; they are recomputed only when a filter reading ["zoom"] crosses an integer zoom, so other steps do not re-tessellate. Label paint is evaluated once per style layer and step.

April 2026​

  • Renamed the runtime package surface to @deck.gl-community/basemap-layers
  • Added a public BasemapLayer composite layer
  • Added style-resolution helpers for style URLs, in-memory styles, and TileJSON-backed sources
  • Added globe-oriented basemap helper exports and example usage
  • Updated module documentation to describe the current runtime and map-style APIs

December 2020​

Work started on the basemap-layer module by collecting a number of related efforts into an open source module.