geotrace-sdk

Python bindings for the GeoTrace SDK: read and write .gtd GNSS/GPS navigation data files.

.gtd is the open binary recording format used by GeoTrace, a desktop application for visualizing GPS/GNSS navigation data: position traces on a map, satellite signal quality, event markers, and filtering.

MIT licensed. Requires Python 3.12+.

Install

uv add geotrace-sdk

Or

pip install geotrace-sdk

Distributed as abi3 wheels (one cp312-abi3 wheel per platform, forward-compatible with newer CPython) for Linux (manylinux and musllinux), macOS, and Windows. A platform without a matching wheel builds from the source distribution, which requires a Rust toolchain.

Write a track

from datetime import datetime, timezone
from geotrace_sdk import NavFileBuilder, NavFix

builder = NavFileBuilder()
builder.add(NavFix(
    lat=51.5074,
    lon=-0.1278,
    gps_time=datetime(2024, 1, 15, 9, 0, 0, tzinfo=timezone.utc),
    heading=90.0,
))
builder.finish().write_to_file("track.gtd")

add() also accepts satellite reports, map annotations, and event markers.

Read a file

from geotrace_sdk import NavFile

nav_file = NavFile.open("track.gtd")
print(len(nav_file.points), "points,", len(nav_file.markers), "markers")
for point in nav_file.points:
    print(point.lat, point.lon, point.gps_time)

Examples

Runnable examples are in sdk/python/geotrace-py/examples:

Full list and per-platform notes: docs/sdk/python.md.

Links

Project links

Data verified by PyPI on Jul 16, 2026
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Key dates

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  • Released:
Newer release available (0.5.1)

1 maintainer

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Avatar for crambl from gravatar.com crambl

Credits

Author: Marc Beck König

GitHub Statistics

Data verified by PyPI on Jul 16, 2026
The GitHub source repository was provided by the project maintainers and verified by PyPI at the time of upload. Stars, forks, and open issues/PRs are derived from that repository and have not been independently verified.

License expression

MIT
View SPDX License List

Requires

Python >=3.12

Tags

gnss gps navigation geospatial gtd telemetry

Classifiers

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