gnss-visualizer 0.0.4

Visualize GNSS data in a web browser

GNSS Visualizer

Interactive analysis of GNSS data!

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Table of Contents

1. About the project
   • Built with
2. Getting started
   • Prerequisites
   • Installation
3. Usage
4. Roadmap
5. Contributing
6. License
7. Contact
8. Acknowledgments

About the project

GNSS visualizer is a tool for visualizing GNSS data in an interactive environment.

It is designed to offer a simple interface in a web browser with ever extending plotting capabilities.

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Built with

The interface and all the plots are built using awesome Bokeh library.

Parsing of ubx messages leverages pyubx2 library.

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Getting started

Installation via pip

python -m pip install gnss-visualizer

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Usage

After installing, the tool provides a command gnss-visualizer that can be used to launch the tool and open the UI in a web browser.

Reading ubx files

Analyzing an ubx file can be done in the following way:

gnss-visualizer ~/path/to/file.ubx -w 1

where -w (shorthand for --simulate-wait-s) is used to add delay of 1 second after each UBX-NAV-PVT message. This will make files with 1 Hz navigation rate playback as if they were done in (almost) realtime.

The input file should contain UBX-NAV-PVT message and in order to generate signal and satellite based plots also UBX-NAV-SIG message.

Reading serial devices

Data can be read also from a serial device using:

gnss-visualizer /dev/ttyUSB0

Details

gnss-visualizer command can be substituted to bokeh serve src/gnss_visualizer --show --args INPUT and in case the bokeh serve command needs to be modified, it can simply be used manually instead of calling gnss-visualizer.

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Roadmap

• Tests
• Github CICD
• Plot selection mechanism
• Make plotting module with classess for different plots
• Set up whole file reading for timeseries plots
• More plots
• Allow playback after reading the whole file
• Configurable wait delay
• Non-ubx file support (some basic plots?)
• Even more plots
• Truth location handling (coordinates / files)
• Lots more plots
• UI for file input

See the open issues for a full list of proposed features (and known issues).

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Contributing

Contributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are greatly appreciated.

If you have a suggestion that would make this better, please fork the repo and create a pull request. You can also simply open an issue. Don't forget to give the project a star! Thanks again!

1. Fork the Project
2. Create your Feature Branch (git checkout -b feature/AmazingFeature)
3. Commit your Changes (git commit -m 'Add some AmazingFeature')
4. Push to the Branch (git push origin feature/AmazingFeature)
5. Open a Pull Request

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License

Distributed under the AGPL-3.0 license. See LICENSE for more information.

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Contact

Ville Joensuu - Linkedin - [e-mail]

Project Link: https://github.com/jopppis/gnss-visualizer

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Acknowledgments

• Bokeh
• pyubx2

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