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Simple gpx export from ridewithgps
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Simple gpx export from ridewithgps

Dima Kogan

The <a href="https://tourdelospadres.weebly.com/">Tour de Los Padres</a> is coming! The race organizer post <a href="https://ridewithgps.com/routes/54493422">the route on ridewithgps</a>. This works, but has convoluted interfaces for people not wanting to use their service. I just wrote a simple script to export their data into a plain .gpx file, including all the waypoints; their exporter omits those. I've seen two flavors of their data, so here're two flavors of the <code>gpx-from-ridewithgps.py</code> script: <div class="org-src-container"> <pre class="src src-python">#!/usr/bin/python3 import sys import json def quote_xml(s): return s.replace("&", "&amp;").replace("<", "&lt;").replace(">", "&gt;") print("Reading stdin", file=sys.stderr) data = json.load(sys.stdin) print(r"""<?xml version="1.0" encoding="UTF-8"?> <gpx version="1.1" creator="gpx-from-ridewithgps.py" xmlns="http://www.topografix.com/GPX/1/1">""") for item in data["extras"]: if item["type"] != "point_of_interest": continue poi = item["point_of_interest"] print(f' <wpt lat="{poi["lat"]}" lon="{poi["lng"]}">') print(f' <name>{quote_xml(poi["name"])}</name>') desc = poi.get("description","") if len(desc): print(f' <desc>{quote_xml(desc)}</desc>') print(f' </wpt>') print(" <trk><trkseg>") for pt in data.get("route", {}).get("track_points", []): print(f' <trkpt lat="{pt["y"]}" lon="{pt["x"]}"><ele>{pt["e"]}</ele></trkpt>') print(" </trkseg></trk>") print("</gpx>") </pre> </div> <div class="org-src-container"> <pre class="src src-python">#!/usr/bin/python3 import sys import json def quote_xml(s): return s.replace("&", "&amp;").replace("<", "&lt;").replace(">", "&gt;") print("Reading stdin", file=sys.stderr) data = json.load(sys.stdin) print(r"""<?xml version="1.0" encoding="UTF-8"?> <gpx version="1.1" creator="gpx-from-ridewithgps.py" xmlns="http://www.topografix.com/GPX/1/1">""") for poi in data["points_of_interest"]: print(f' <wpt lat="{poi["lat"]}" lon="{poi["lng"]}">') print(f' <name>{quote_xml(poi["name"])}</name>') desc = poi.get("description","") if len(desc): print(f' <desc>{quote_xml(desc)}</desc>') print(f' </wpt>') for poi in data["course_points"]: print(f' <wpt lat="{poi["y"]}" lon="{poi["x"]}">') print(f' <name>{quote_xml(poi["n"])}</name>') print(f' </wpt>') print(" <trk><trkseg>") for pt in data['track_points']: print(f' <trkpt lat="{pt["y"]}" lon="{pt["x"]}"><ele>{pt["e"]}</ele></trkpt>') print(" </trkseg></trk>") print("</gpx>") </pre> </div> You invoke it by downloading the route and feeding it into the script: <div class="org-src-container"> <pre class="src src-sh">curl -s https://ridewithgps.com/routes/54493422.json | ./ridewithgps-to-gpx.py > out.gpx </pre> </div> Note that the route number 54493422 is in the url above.