DK1DA/DMRmap
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Implement routing corridor visualization

Browse source
This commit is contained in:
Marcus Kida 2026-02-10 01:09:19 +01:00
parent 16cc32d8ce
commit 976fbfae15
1 changed files with 81 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

82
static/app.js
View file

@ -13,6 +13,7 @@
var heatmapGlowLayer = L.layerGroup().addTo(map);
var markerLayer = L.layerGroup().addTo(map);
var routeLayer = null;
var corridorLayer = null;
var routePoints = null; // stored [lat, lng] pairs for re-fetching on band change
var isRouteMode = false;
var isPinMode = false;
@ -434,6 +435,76 @@
});
}
// === Corridor visualization ===
function offsetPoint(lat, lng, bearing, distKm) {
var R = 6371;
var lat1 = lat * Math.PI / 180;
var lng1 = lng * Math.PI / 180;
var brng = bearing * Math.PI / 180;
var d = distKm / R;
var lat2 = Math.asin(Math.sin(lat1) * Math.cos(d) + Math.cos(lat1) * Math.sin(d) * Math.cos(brng));
var lng2 = lng1 + Math.atan2(Math.sin(brng) * Math.sin(d) * Math.cos(lat1),
Math.cos(d) - Math.sin(lat1) * Math.sin(lat2));
return [lat2 * 180 / Math.PI, lng2 * 180 / Math.PI];
}
function computeCorridorPolygon(points, distKm) {
if (points.length < 2) return [];
var left = [];
var right = [];
for (var i = 0; i < points.length; i++) {
var bearing;
if (i === 0) {
bearing = getBearing(points[0], points[1]);
} else if (i === points.length - 1) {
bearing = getBearing(points[i - 1], points[i]);
} else {
var b1 = getBearing(points[i - 1], points[i]);
var b2 = getBearing(points[i], points[i + 1]);
bearing = averageBearing(b1, b2);
}
left.push(offsetPoint(points[i][0], points[i][1], bearing - 90, distKm));
right.push(offsetPoint(points[i][0], points[i][1], bearing + 90, distKm));
}
// Form a closed polygon: left side forward, right side backward
return left.concat(right.reverse());
}
function getBearing(p1, p2) {
var lat1 = p1[0] * Math.PI / 180;
var lat2 = p2[0] * Math.PI / 180;
var dLng = (p2[1] - p1[1]) * Math.PI / 180;
var y = Math.sin(dLng) * Math.cos(lat2);
var x = Math.cos(lat1) * Math.sin(lat2) - Math.sin(lat1) * Math.cos(lat2) * Math.cos(dLng);
return (Math.atan2(y, x) * 180 / Math.PI + 360) % 360;
}
function averageBearing(b1, b2) {
var r1 = b1 * Math.PI / 180;
var r2 = b2 * Math.PI / 180;
var x = Math.cos(r1) + Math.cos(r2);
var y = Math.sin(r1) + Math.sin(r2);
return (Math.atan2(y, x) * 180 / Math.PI + 360) % 360;
}
function drawCorridor() {
if (corridorLayer) {
map.removeLayer(corridorLayer);
corridorLayer = null;
}
if (!routePoints || routePoints.length < 2) return;
var distKm = parseInt(corridorRange.value);
var polygon = computeCorridorPolygon(routePoints, distKm);
corridorLayer = L.polygon(polygon, {
color: "#4CAF50",
weight: 1,
fillColor: "#4CAF50",
fillOpacity: 0.1,
opacity: 0.4,
interactive: false,
}).addTo(map);
}
function findRoute() {
var fromAddr = fromInput.value.trim();
var toAddr = toInput.value.trim();
@ -466,6 +537,7 @@
// Switch to route mode
routePoints = latLngs;
drawCorridor();
isRouteMode = true;
clearBtn.style.display = "";
corridorRow.style.display = "";
@ -487,6 +559,10 @@
map.removeLayer(routeLayer);
routeLayer = null;
}
if (corridorLayer) {
map.removeLayer(corridorLayer);
corridorLayer = null;
}
routePoints = null;
isRouteMode = false;
clearBtn.style.display = "none";
@ -748,9 +824,13 @@
corridorRange.addEventListener("input", function () {
corridorVal.textContent = corridorRange.value;
if (isRouteMode) drawCorridor();
});
corridorRange.addEventListener("change", function () {
if (isRouteMode) fetchRouteRepeaters();
if (isRouteMode) {
drawCorridor();
fetchRouteRepeaters();
}
});
routeBtn.addEventListener("click", findRoute);