https://github.com/filipspl/gpsjsonplot

Plot json data from gpsd and gpspipe
https://github.com/filipspl/gpsjsonplot

gps gpsd gpspipe

Last synced: 10 months ago
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Plot json data from gpsd and gpspipe

• Host: GitHub
• URL: https://github.com/filipspl/gpsjsonplot
• Owner: filipsPL
• License: apache-2.0
• Created: 2023-12-07T20:22:04.000Z (over 2 years ago)
• Default Branch: main
• Last Pushed: 2023-12-09T20:37:43.000Z (over 2 years ago)
• Last Synced: 2025-04-01T18:23:10.639Z (about 1 year ago)
• Topics: gps, gpsd, gpspipe
• Language: Python
• Homepage:
• Size: 709 KB
• Stars: 4
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# GPS Data Visualization Script

Scripts to analyze GPS JSON data generated by `gpsd` and `gpspipe` and make plots of position changes and satellite visibility over time. This is a modern alternative for [`gpsprof`](https://github.com/andersson/gpsd/blob/master/gpsprof).

## Sample output

|                          |                              |

| :----------------------: | :--------------------------: |

|   `gpsjsonplot-pos.py`   |                              |

|  ![](plot-lat-lon.png)   |  ![](plot-lat-lon-200.png)   |

|  `gpsjsonplot-sats.py`   |                              |

| ![](plot-sattelites.png) | ![](plot-sattelites-200.png) |

## Prerequisites

- `gpsd` up and running; `gpspipe` or other source of json data

- Python 3.x with python packages: `json`, `matplotlib`, `numpy`, `seaborn`

## Usage

```bash

# get some samples from gpsd

gpspipe -v -w -n 10 > input.json

# make a plot of position changes using 100 data points with contour lines

python gpsjsonplot-pos.py --json  input.json --outfile plot-lat-lon.png --n 100 --contour 4

# the same but for all data points and without contours lines

python gpsjsonplot-pos.py --json  input.json --outfile plot-lat-lon2.png --n 1 --contour 0

# plot satellites, with sampling 10 data points

python gpsjsonplot-sats.py --json input.json --outfile plot-sattelites.png --n 10

# plot satellites, all data points

python gpsjsonplot-sats.py --json input.json --outfile plot-sattelites2.png --n 0

```

-    `--json`: Path to the input JSON file containing GPS data.

-    `--outfile`: Path to the output image file where the plot will be saved.

-    `--n`: Optional parameter to uniformly select n data points.

-    `--contour`: Optional: number of contour lines. 0 - disables it.