randy c9561a5489 Add an offline terrain shadow overlay to the Overlays panel
Shades the visible map by whether each point is currently blocked from
the sun by surrounding terrain (shademap.app-style), computed fully
offline via the same Terrarium DEM tiles the Terrain shading layer
already renders, plus this session's sun-position math and Radar's
checkbox+expandable UI shape.

dem.js pulls elevation-at-a-point out on its own since TODO.adoc's
slope readout and solar calculator will need the same lookup.
2026-09-10 21:43:51 +02:00
2026-09-09 17:38:53 +02:00
2026-09-09 17:38:53 +02:00
2026-09-09 17:38:53 +02:00

MapTool

A mapping application written in Ruby with Sinatra.

The project’s shape is still open — this is the initial scaffold.

Status

Early scaffold. The web application serves a vector map (MapLibre GL JS), with an online style and an optional offline style backed by a local PMTiles file, an animated RainViewer radar overlay, GPX upload/display (points and tracks, organized in folders), and a live position marker from a local GNSS receiver via gpsd.

Requirements

  • Ruby (see .ruby-version) and Bundler

Getting started

bundle install
bundle exec puma -C config/puma.rb

Then open http://127.0.0.1:4567 in a browser.

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