Draw the dashboard basemap from OpenFreeMap by taclane · Pull Request #186 · airframesio/xng

taclane · 2026-10-13T15:33:00Z

Closes #184.

CARTO now requires an API key, so every dashboard tile is an “API KEY REQUIRED” placeholder. Even though CARTO vector services do not require an API key at present, it is expected to happen in the future as well.

This switches the provider to OpenFreeMap using the same OpenStreetMap data as before; even allowing for the use of self-hostable mapping service. It renders with MapLibre under the existing Leaflet overlays.

New [outputs.map]: style (dark/positron/bright/liberty/fiord), style-url (any MapLibre style), format = "raster" (OSM tiles). Falls back to OSM raster without WebGL or if the style fails.

No server-side fetching or keys. CI steps green; tested live in a browser.

Summary by CodeRabbit

New Features
- Dashboard maps support configurable OpenFreeMap vector styles, custom MapLibre style URLs, and OpenStreetMap raster tiles.
- Vector maps fall back to raster tiles when WebGL is unavailable or map configuration or assets cannot be loaded.
Documentation
- Added station configuration examples and guidance for selecting map styles and tile formats.
- Clarified that scans report channel activity and configuration suggestions in the console, without starting feeds or displaying a dashboard map.

coderabbitai · 2026-10-13T15:33:17Z

No actionable comments were generated in the recent review. 🎉

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src/outputs/assets/dashboard.html

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📝 Walkthrough

The dashboard now supports configurable vector and raster basemaps. Station settings pass through runtime output configuration to the HTTP server, which provides map settings to the dashboard.

Changes: Dashboard basemap configuration

Layer / File(s)	Summary
Define and validate basemap settings `src/outputs/map.rs`, `src/commands/station.rs`, `src/outputs/mod.rs`, `contrib/station.example.toml`, `README.md`	Adds validated settings for named OpenFreeMap styles, custom style URLs, and vector or raster formats. The client configuration includes OpenStreetMap raster fallback settings. Station configuration and documentation describe the options.
Pass configuration to the dashboard server `src/runtime.rs`, `src/main.rs`, `src/commands/scan.rs`, `src/commands/survey.rs`, `src/outputs/http.rs`	Output configuration carries map settings. Output constructors use defaults or build settings from station configuration. The HTTP runner serves the serialized client configuration at `/map/config.json`.
Select the dashboard basemap `src/outputs/assets/dashboard.html`	The dashboard loads MapLibre vector styles when WebGL is available and uses raster tiles otherwise. It falls back to raster tiles for configuration, asset, style, and specified MapLibre errors.

Priority: ➖ Normal

Estimated code review effort: 3 (Moderate) | ~20 minutes

Change: Feature

Sequence Diagram(s)

sequenceDiagram
  participant Dashboard
  participant HTTPServer
  participant MapLibre
  participant OpenStreetMap
  Dashboard->>HTTPServer: GET /map/config.json
  HTTPServer-->>Dashboard: Return client map configuration
  alt Vector format and WebGL available
    Dashboard->>MapLibre: Load configured style
    MapLibre-->>Dashboard: Return style and tile load status
  else Raster format, unavailable WebGL, or setup failure
    Dashboard->>OpenStreetMap: Request raster tiles
  end

Merge Risk: ⚪ Minimal · up to 4c98d

No actionable merge-blocking issue is identified; the change is mergeable after normal checks.

Pre-merge checks · 5

Passed checks (5 passed)

Check name	Status	Explanation
Description Check		Check skipped - CodeRabbit’s high-level summary is enabled.
Title check		The title clearly and concisely describes the main change: using OpenFreeMap for the dashboard basemap.
Linked Issues check		Issue `#184` requests a way to display the dashboard map without a CARTO API key. The PR replaces the CARTO basemap with OpenFreeMap vector tiles and OpenStreetMap raster fallback tiles. `MapConfig` sup…
Out of Scope Changes check		The changes stay within issue `#184`. Configuration parsing, runtime propagation, HTTP configuration delivery, dashboard rendering, fallback handling, documentation, examples, and focused tests support …
Docstring Coverage		Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 22 functions across 8 files. (1 skipped: 1…

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Actionable comments posted: 2

🪄 Fix CodeRabbit comments on this PR

🤖 Prompt to fix review comments

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Inline comments:
Review comments at @src/outputs/assets/dashboard.html:
- Around line 196-198: Update the style-loading flow around L.maplibreGL to
retain the added layer and observe errors through layer.getMaplibreMap(); when
an initial or required-source failure makes the vector basemap unusable, remove
that layer with map.removeLayer and invoke raster(fallback), while leaving
transient individual tile errors alone.
- Around line 196-197: Before creating the MapLibre layer in the style-loading
`.then` callback, resolve relative `sprite`, `glyphs`, source `url`, and source
`tiles` values against `cfg.style`, preserving already absolute URLs. Pass the
normalized style to `L.maplibreGL`.

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📒 Files selected for processing (11)

README.md
contrib/station.example.toml
src/commands/scan.rs
src/commands/station.rs
src/commands/survey.rs
src/main.rs
src/outputs/assets/dashboard.html
src/outputs/http.rs
src/outputs/map.rs
src/outputs/mod.rs
src/runtime.rs

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taclane · 2026-10-13T16:41:49Z

ea8fa2e, relative style URLs: resolved against the style URL, restoring the {…} template braces that new URL() percent-encodes (the suggested diff would have broken fonts/{fontstack}/{range}.pbf and {z}/{x}/{y} tile URLs). Also handles the array form of sprite.

ea8fa2e, fallback after style load: falls back to OSM raster on any error before the map first loads, or on a source-level error afterwards; individual tile errors are left alone.

77800ad, docstrings: every function touched by this PR now has a doc comment.

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Actionable comments posted: 1

🪄 Fix CodeRabbit comments on this PR

🤖 Prompt to fix review comments

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only still-valid issues, skip the rest with a brief reason, keep changes
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Inline comments:
Review comments at @src/outputs/assets/dashboard.html:
- Line 218: Update the MapLibre error handling around the `fellBack`, `e.tile`,
`loaded`, and `e.sourceId` guard to detect persistent failures across visible
tiles or the required source, rather than ignoring every tile error. Trigger the
configured raster fallback when failures are persistent, including cases where
MapLibre suppresses 404 error events, while continuing to ignore a single
transient tile error.

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📒 Files selected for processing (6)

src/commands/scan.rs
src/main.rs
src/outputs/assets/dashboard.html
src/outputs/http.rs
src/outputs/map.rs
src/runtime.rs

🚧 Files skipped from review as they are similar to previous changes (5)

src/commands/scan.rs
src/runtime.rs
src/outputs/http.rs
src/outputs/map.rs
src/main.rs

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Draw the dashboard basemap from OpenFreeMap

677ea91

coderabbitai Bot reviewed Oct 13, 2026

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Comment thread src/outputs/assets/dashboard.html Outdated

Comment thread src/outputs/assets/dashboard.html

taclane added 2 commits October 13, 2026 12:09

Resolve relative basemap style URLs and fall back on source errors

ea8fa2e

Document functions touched by the basemap change

77800ad

coderabbitai Bot reviewed Oct 13, 2026

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Comment thread src/outputs/assets/dashboard.html Outdated

Fall back to raster when tiles fail before any load

4c98d3e

fredclausen approved these changes Oct 14, 2026

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Draw the dashboard basemap from OpenFreeMap - #186

Draw the dashboard basemap from OpenFreeMap#186
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