fixed marker heading line direction

1 files changed, 4 insertions, 2 deletions

diff --git a/content/static/main.js b/content/static/main.js
index bd91690..216cbea 100644
--- a/content/static/main.js
+++ b/content/static/main.js
@@ -132,12 +132,14 @@ function lib_add_location_logs_to_map(map, locations) {
         for (const location of locations) {
                 const len = 0.0002;
                 const lat = Math.sin((location.heading + 90) * 2 * Math.PI / 360) * len;
-                const lon = Math.cos((location.heading + 90) * 2 * Math.PI / 360) * len;
+                const lon = Math.cos((location.heading - 90) * 2 * Math.PI / 360) * len;
                 const line_coords = [
                         [location.latitude, location.longitude],
                         [location.latitude + lat, location.longitude + lon],
                 ];
-                L.circle([location.latitude, location.longitude], { radius: location.accuracy }).addTo(map);
+                L.circle([location.latitude, location.longitude], { radius: location.accuracy })
+                        .bindPopup(`${location.heading}`)
+                        .addTo(map);
                 L.polyline(line_coords, { color: 'blue' }).addTo(map)
         }
 }