baldav/frontend/index.html
4aiman c3188911c3 BRouter: analysis + embed the offline routing engine (Stage 1)
Analysis in docs/brouter-findings.md: how BRouter knows roads (.rd5
segments), routes and reaches low elevation gain (profile uphill/downhill
cost + kinematics), the three call surfaces, and an evaluation of two ideas
— fill GPS gaps along roads, and offline waypoint route planning. License is
MIT; the engine has no desktop-only deps, so it embeds on Android ART.

Stage 1 (embed + bridge, compiles into the apk; on-device route not yet run):
- vendored brouter-1.6.3-all.jar into the Android module (dexes cleanly) and
  bundled the trekking/shortest profiles + lookups.dat as assets, copied to
  files/brouter/profiles2 on launch
- MainActivity: a brouter_command.txt handler on the existing FileObserver
  runs btools.router.RoutingEngine off the UI thread (recipe taken via javap
  from ServerHandler) and returns the track as GPX
- Rust brouter_route command: same file bridge as GPS (request + command,
  poll for the result), registered in the invoke handler
- frontend/js/router.js: BRouter.route(points, profile) -> GPX (parseRouteGPX)
- LICENSE-brouter (MIT notice) kept alongside the vendored engine

Segments (.rd5, ~13-23 MB per 5x5 tile) are delivered later (Stage 2, wired
download inside BalDav). IMPLEMENTATION_PLAN.md tracks the 5 stages.
2026-09-09 00:56:13 +03:00

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HTML

<!DOCTYPE html>
<html lang="ru">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" />
<title>BalDav</title>
<link rel="stylesheet" href="lib/leaflet.css" />
<link rel="stylesheet" href="css/styles.css" />
</head>
<body>
<div id="app"></div>
<!-- Load order matters: db.js and bmr.js expose window.DB / window.BMR,
then main.js uses them. Tauri injects window.__TAURI__ before page scripts. -->
<script src="lib/leaflet.js"></script>
<script src="lib/leaflet-rotate.js"></script>
<script src="lib/hammer.min.js"></script>
<script src="lib/chart.min.js"></script>
<script src="lib/chartjs-plugin-zoom.min.js"></script>
<script src="lib/jszip.min.js"></script>
<script src="lib/zxing-wasm.js"></script>
<script src="js/db.js"></script>
<script src="js/bmr.js"></script>
<script src="js/tilecache.js"></script>
<script src="js/gps.js"></script>
<script src="js/router.js"></script>
<script src="js/sync.js"></script>
<script src="js/chzn.js"></script>
<script src="js/main.js"></script>
</body>
</html>