main.py

#!/usr/bin/env python
import os, sys; sys.executable = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'venv', 'bin', 'python')
import folium
import gpxpy
import os
import glob

def convert_gpx_to_map(gpx_file, output_html):

    # Parse GPX file
    gpx = gpxpy.parse(open(gpx_file))

    # Extract latitude and longitude coordinates
    points = []
    for track in gpx.tracks:
        for segment in track.segments:
            for point in segment.points:
                points.append([point.latitude, point.longitude])

    # Calculate the midpoint between the minimum and maximum latitude and longitude values (to center the map)
    midpoint_lat = (min(p[0] for p in points) + max(p[0] for p in points)) / 2
    midpoint_lon = (min(p[1] for p in points) + max(p[1] for p in points)) / 2
    
    # Create map object using Folium
    resolution = 2048
    map_obj = folium.Map(
        tiles = 'https://tiles.stadiamaps.com/tiles/stamen_toner/{z}/{x}/{y}{r}.png?api_key=6d83354b-5801-4255-ac4b-6b41df50cf8c',
        attr = 'Massilia Bastards',
        location=[midpoint_lat, midpoint_lon], 
        width=resolution, 
        height=resolution,
        zoom_control=False, 
        prefer_canvas=True,
        zoom_start = 14)
        
    # Calculate the bounds of the GPX track
    min_lat = min(p[0] for p in points)
    max_lat = max(p[0] for p in points)
    min_lon = min(p[1] for p in points)
    max_lon = max(p[1] for p in points)

    # Fit the map to the bounds of the GPX track
    map_obj.fit_bounds([(min_lat, min_lon), (max_lat, max_lon)], padding = (40,40))

    # Plot coordinates on the map
    folium.PolyLine(points, color="#FF0000", weight=5, line_cap="round", line_join="round", opacity=1).add_to(
        map_obj)

    # Save the map as an HTML file
    map_obj.save(output_html)

    # Print
    print(f"{os.path.basename(gpx_file)} done")

gpx_dir = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'gpx_files')
gpx_files = glob.glob(gpx_dir + '/*.gpx')
for gpx in gpx_files:
    output_html = f"output_html/map_{os.path.basename(gpx).split('.')[0]}.html"
    convert_gpx_to_map(gpx, output_html)