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Tracking: PMTiles parity with GeoLibre

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Valutazione

Difficoltà
5/5
Tempo stimato
Più di una settimana
Idoneità per principianti
35/100
Tipo di issue
Funzionalità
Chiarezza
Abbastanza chiara
Stato di attività
Attiva
Stack tecnologico
rust
Ambito
backend, tooling

Direzione di ricerca

This tracking issue lists several completed items and multiple independent PMTiles features still open; it names no implementation files or tests. Start by reading the relevant linked issue or pull request for a specific unchecked item, then trace its existing PMTiles support. Done means implementing that item and providing its own pull request, as the issue requests.

Scritto dal modello di indicizzazione a partire dal testo della issue.

Descrizione

enhancement

RustGIS reads PMTiles v3 archives (raster and vector, desktop file or web address by range requests, in the browser too) and draws them with the built-in or a per-layer style. GeoLibre does more with them. This issue tracks closing the gap, one pull request per item. Part of #77.

Reading and navigation

  • Brotli and Zstandard archives: today only uncompressed and gzip archives open; many published archives use the other two (#560)
  • Frame the map on a new archive from its header bounds, as GeoLibre does (#560)
  • Zoom To Layer for tile layers in Contents (archive bounds, falling back to the layer's extent) (#560)

Querying

  • Identify and popups on vector tile features (PMTiles and other MVT layers): the features under the pointer with their attributes, as GeoLibre's popup and identify-all do (#565)

Source layers and styling

  • Source layers in Contents: the archive's vector_layers listed under the tile layer, each with its own visibility
  • Style each source layer in the Format pane: fill, stroke, width, point size and opacity, kept with the project (map.setTiles able to change layers/styleLayers)
  • Filters and legend swatches for vector tile source layers

Basemaps

  • A PMTiles archive as a basemap with flavours (light, dark, white, grayscale, black) for Protomaps-schema archives, from a URL or a local file. The flavours are our own styles, drawn for RustGIS (no third-party styles, see AGENTS.md)

Creating archives

  • Vector to PMTiles: a geoprocessing tool writing a layer as vector tiles (MVT) in a PMTiles archive, zoom range chosen
  • Raster to PMTiles: a raster layer as PNG/WebP tiles in a PMTiles archive (band, colour map, resampling, zoom range)
  • PMTiles Extract / offline basemap: an area and zoom range cut out of a remote archive (e.g. a planet build) over range requests into a local .pmtiles, then added as a basemap or overlay

Python

  • Map.add_pmtiles(url, name=…, source_layers=…, style=…) in the rustgis package, plus docs

Not planned

  • AVIF tiles: needs a C decoder (dav1d) and would break the pure-Rust and wasm rules
  • PMTiles v2 archives: GeoLibre does not read them either
Lingua principale
Rust
Stelle
1.9k
Fork
268
Merge medio
3h 9m
PR unite (30g)
611

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