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adds height to route drawing

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This commit is contained in:
Christian Beutel
2024-04-23 01:39:20 +02:00
parent 8d7ed16904
commit 8a3894106f
18 changed files with 176 additions and 96 deletions
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81
web/src/lib/util/gpx_util.ts
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@@ -3,19 +3,7 @@ import { Trail } from "$lib/models/trail";
import { Waypoint } from "$lib/models/waypoint";
import GeoJsonToGpx from "$lib/vendor/geoJSONToGPX";
import { kml, tcx } from "$lib/vendor/toGeoJSON/toGeoJSON";
function calculateDistance(lat1: number, lon1: number, lat2: number, lon2: number): number {
const R = 6371; // Radius of the Earth in km
const dLat = (lat2 - lat1) * (Math.PI / 180); // Convert degrees to radians
const dLon = (lon2 - lon1) * (Math.PI / 180);
const a =
Math.sin(dLat / 2) * Math.sin(dLat / 2) +
Math.cos((lat1 * (Math.PI / 180))) * Math.cos((lat2 * (Math.PI / 180))) *
Math.sin(dLon / 2) * Math.sin(dLon / 2);
const c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
const distance = R * c * 1000; // Distance in km
return distance;
}
import cryptoRandomString from "crypto-random-string";
export async function gpx2trail(gpxString: string) {
const gpx = await GPX.parse(gpxString);
@@ -30,65 +18,34 @@ export async function gpx2trail(gpxString: string) {
trail.description = gpx.metadata?.desc;
for (const wpt of gpx.wpt ?? []) {
for (const wpt of gpx.wpt ?? []) {
const wp = new Waypoint(wpt.$.lat ?? 0, wpt.$.lon ?? 0);
wp.name = wp.name
wp.description = wp.description;
wp.id = cryptoRandomString({ length: 15 });
wp.name = wpt.name
wp.description = wpt.desc;
trail.expand.waypoints.push(wp);
}
let totalElevationGain = 0;
let totalDuration = 0;
let totalDistance = 0;
const totals = gpx.getTotals()
for (const track of gpx.trk ?? []) {
for (const segment of track.trkseg ?? []) {
const points = segment.trkpt ?? [];
if (points.length >= 2) {
const startTime = points[0].time;
const endTime = points[points.length - 1].time
if (startTime && endTime) {
totalDuration += endTime.getTime() - startTime.getTime();
if (!trail.date) {
trail.date = startTime.toISOString()
.substring(0, 10);
}
}
}
const pointLength = points.length
for (let i = 1; i < pointLength; i++) {
const prevPoint = points[i - 1];
const point = points[i];
const elevation = point.ele ?? 0
const previousElevation = prevPoint.ele ?? 0
const elevationDiff = elevation - previousElevation;
if (elevationDiff > 0) {
totalElevationGain += elevationDiff;
}
const distance = calculateDistance(
prevPoint.$.lat ?? 0,
prevPoint.$.lon ?? 0,
point.$.lat ?? 0,
point.$.lon ?? 0,
);
totalDistance += distance;
}
}
}
const startPoint = gpx.trk?.at(0)?.trkseg?.at(0)?.trkpt?.at(0);
const points = gpx.trk?.at(0)?.trkseg?.at(0)?.trkpt
const startPoint = points?.at(0);
if (startPoint) {
trail.lat = startPoint.$.lat
trail.lon = startPoint.$.lon
}
trail.duration = totalDuration / 1000 / 60
trail.elevation_gain = totalElevationGain;
trail.distance = totalDistance
const startTime = points?.at(0)?.time;
const endTime = points?.at((points?.length ?? 1) - 1)?.time
if (startTime && endTime && !trail.date) {
trail.date = startTime.toISOString()
.substring(0, 10);
}
trail.duration = totals.duration / 1000 / 60
trail.elevation_gain = totals.elevationGain;
trail.distance = totals.distance
return trail
}