mirror of
https://expo.survex.com/repositories/troggle/.git
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120 lines
4.3 KiB
Python
120 lines
4.3 KiB
Python
import os
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import folium
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from pathlib import Path
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from PIL import Image, ExifTags
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from itertools import chain
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"""To do
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- create gpx file for adding in to existing GPSprune maps
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- omit all the thumbs
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- include *.jpeg
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- can we also do other formats than JPG ?
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- we want popup that hotlinks to URL of the photo of course
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"""
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def get_coordinates(photo_path):
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"""Extracting EXIF data from jpg files requires an external package because the EXIF standard
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is interpreted differently by the many different implementations of the JPG file format
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"""
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try:
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# Read EXIF data from photo
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img = Image.open(photo_path)
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exif_data = img._getexif()
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# Extract latitude and longitude from EXIF data
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gps_info = exif_data.get(34853) #'GPSInfo is a dict
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# This does not mean that all the GPS fields are populated.
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lat = gps_info.get(2, None)
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lon = gps_info.get(4, None)
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isn = gps_info.get(1, None)
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ise = gps_info.get(3, None)
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if isn and isn != "N":
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print(f"{photo_path} WRONG hemisphere N/S {isn}")
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if ise and ise != "E":
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print(f"{photo_path} WRONG hemisphere E/W")
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point = gps_info.get(17, None) # direction the camera is point towards
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pointref = gps_info.get(16, None) # "M" for magnetic
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taken = gps_info.get(29, None) # GPS datestamp
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except:
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#print(f"{photo_path} - lat/lon exception")
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# for key, value in gps_info.items():
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# print(key, value, value.type())
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return None, None
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# Convert coordinates to decimal format
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if lat and lon:
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# lat and lon are tuples e.g. (47.0, 35.0, 5.77)
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latitude = float(lat[0] + lat[1] / 60 + lat[2] / 3600)
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longitude = float(lon[0] + lon[1] / 60 + lon[2] / 3600)
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# Reverse geocode coordinates to get address
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#address = geolocator.reverse((latitude, longitude))
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return latitude, longitude
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else:
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# print(f"{photo_path} - lat/lon conversion exception {lat=} {lon=}")
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# for key, value in gps_info.items():
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# print(key, value, type(value))
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return None, None
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# Specify the folder containing the photos
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#photo_folder = Path("../../expoweb")
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photo_folder = Path("/mnt/d/EXPO/PHOTOS")
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#photo_folder = Path("/mnt/d/EXPO/PHOTOS/2019")
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#photo_folder = Path("/mnt/d/EXPO/PHOTOS/2022/JonoL") # jpeg
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save_gpx = "photos_jpg.gpx"
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# these are generators, not lists
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photosjpg = photo_folder.rglob("*.jpg")
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photosjpeg = photo_folder.rglob("*.jpeg")
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photos = chain(photosjpg, photosjpeg)
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# Initialize a Folium map centered at an initial location
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map = folium.Map(location=[47.691036, 13.821314], zoom_start=13)
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photoset = []
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# Iterate through photos in the folder
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for photo_path in photos:
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if photo_path.stem.startswith("slide_"):
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#print(f" - abort slide")
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continue
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if photo_path.stem.startswith("thumb_"):
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#print(f" - abort thumb")
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continue
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# Extract latitude, longitude, and address from photo
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latitude, longitude = get_coordinates(photo_path)
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if latitude and longitude:
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print(f"{photo_path} {latitude:.6f} {longitude:.6f}")
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# Create a marker for each photo with its location and address
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folium.Marker(
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location=[latitude, longitude],
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popup=f"{photo_path}",
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icon=folium.Icon(color="red", icon="camera"),
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).add_to(map)
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photoset.append((photo_path, latitude, longitude))
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# Save the folium map as an HTML file
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map.save("photo_map.html")
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print(f"Found {len(photoset)} GPS located photos in '{photo_folder}' and subdirectories.")
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header = """<?xml version="1.0" encoding="windows-1252"?>
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<gpx version="1.0" creator="troggle pmap"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xmlns="http://www.topografix.com/GPX/1/0"
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xsi:schemaLocation="http://www.topografix.com/GPX/1/0 http://www.topografix.com/GPX/1/0/gpx.xsd">
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<name>pmap photo GPS</name>
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<desc>Troggle photos archive</desc>
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"""
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with open(save_gpx, "w") as f:
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f.write(header)
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for p in photoset:
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photo_path, latitude, longitude = p
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# add ele=
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f.write(f'<wpt lat="{latitude:.6f}" lon="{longitude:.6f}"> <name>[{photo_path.stem}]</name><type>photo</type><desc>{str(photo_path).replace(str(photo_folder),"")}</desc></wpt>\n')
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f.write(f'</gpx>\n')
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