GP is aimed to be simple and fast tool to analyse numerical data. It does not claim to replace all other plotters. The main platforms are GNU/Linux and Windows. GP can be embedded to any third-party SDL based application.
- Plot 2D figures with lines or dots from plain text or binary files.
- Spatial structure based rendering to look through a large datasets.
- Multiple axes are supported by design.
- Real-time plotting from multiple asynchronous sources.
- Math operations like subtraction or polynomial fitting.
- Data sample tool to extract accurate numeric values.
- Static (from file) and dynamic (from UI) configuration.
- Export screen or data to the file (PNG, SVG, CSV).
- In-RAM data compression by LZ4.
These dependencies you need to have prior to compile GP from sources.
To compile GP you could use Makefile from source directory.
You can just use GP to view a plain text file or CSV table.
$ gp file.txt file.csv ...
Note that first valid line of plain text (or CSV) file will be interpreted as description of the columns. Here is a simple example of the plain text file.
$ cat file.txt
time@sec current@A voltage@V hexvar ...
0.1 0.0 0.0 0x0001
0.2 1.1 2.1 0x0035
0.3 1.5 3.4 0x0d1f
0.4 1.7 4.1 0x0e00
...
You also can open a multiple files to combine various columns from different files in a single plot. Explore UI menu options to overview of all features.
Also check for command line options help.
$ gp -h
Example of pipeline usage with GP.
$ zcat config/tlmgrab.csv.gz | gp -x0 -l1 - -p3 -n4
Take a look into configuration examples that describes most of the options.
You can make real-time plot from raw serial device or from growing logfile.
- Improve embedded API.
- Add a dependency based subtract calculation.
- Optimize line drawing performance even more.