randy
b6a9c1546e
A ruler button in the top-left control stack, matching NPS's own Area/Distance ruler. Click to add vertices; distance sums haversine segment lengths, area uses the spherical-excess polygon formula (same one turf.js's area() uses) rather than a flat shoelace, since a flat approximation drifts at park-boundary scale. SI units only (m/km, m²/km²) — no imperial toggle.
MapTool
Table of Contents
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.rbThen open http://127.0.0.1:4567 in a browser.