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Utility library for textual data visualization

Project description

termdraw - ASCII/Unicode data visualizer

termdraw is a utility written in Python 3 that draws CSV data of form x,y as text graphs.

Usage examples

$ cat data.csv
0,41.492605310851346
1,-61.90512769272529
2,-5.705460535578624
3,-45.40738693881286
4,48.57733683988141
5,-11.09276051450491
6,-48.857646527799886
7,20.02380594874974
8,3.8265498423428568
9,-4.993006692763217
0,17.534954337402368
1,-12.048399887989433
2,-67.66449062064824
3,33.3847844218531
4,36.73010900554392
5,62.315666298226745
6,-59.496317272986865
7,74.93745996536751
8,-7.867224323068683
9,51.88925397139964
$ termdraw data.csv
                      •
                •
            •                •
•        •  •
•                     •
                         •
   •  •         •        •   •

         •         •
   •  •            •

Assume data.csv contains a list of (x,y) points, graph those points, print the result to stdout.

$ termdraw data.csv --width=10 -h 5
       •
•   ••   •
•  ••  ••
 ••  •  ••
 •••  •

Draw graphs with dimensions of 10 characters’ width and height of 5 lines.

$ echo "1,2 2,3 3,4;4,5" | termdraw -
                             •


                   •


         •


•

Read standard input and graph x,y points. Data received via stdin must have the following format: x,y[%Sx,y…], where %S is a separator (a single space or semicolon).

$ echo "1,2 2,3 3,4 4,5" | termdraw - -a
                             o


                   o


         o


o

Only use ASCII symbols in output.

$ termdraw data.csv -s

                ▁     █
            ▂   █     █      ▄
▇        ▃  █   █     █      █
█        █  █   █     █      █
█        █  █   █     █  ▄   █
█  ▄  ▇  █  █   █     █  █   █
█  █  █  █  █   █     █  █   █
█  █  █  █  █   █  ▁  █  █   █
█  █  █  █  █   █  █  █  █   █

Draw a solid graph (fills values at or below the points).

$ termdraw data.csv -si

                ▁     █
            ▂▄▆▇█     █▄     ▄
▇        ▃▅██████    ▃██    ▆█
█▆      ▄████████▆   ████ ▂███
██▅    ▅██████████   ████▄████
███▄▅▆▇███████████▄ ▆█████████
███████████████████ ██████████
███████████████████▁██████████
██████████████████████████████

Draw a graph with linear interpolation between points.

$ termdraw data.csv --print-paths
data.csv
                      •
                •
            •                •
•        •  •
•                     •
                         •
   •  •         •        •   •

         •         •
   •  •            •

Print file paths on a separate line before printing their graphs.

$ termdraw --help
Usage: termdraw.py [options] file.csv
Draw a human-friendly CLI graph with Unicode symbols.

  --help                   Print this help message and exit
  -w X, --width X          Limit graph width to X characters
  -h Y, --height Y         Limit graph height to Y lines
  -i, --interpolate        Enable interpolation
  -n, --no-interpolate     Disable interpolation
  -s, --solid              Draw solid graph (with columns)
  -p, --point              Draw point graph (with points)
  -a, --ascii              Only use ASCII symbols
  -o file, --output file   Write to file instead of stdout
  --print-paths            Print file names before graphs

Print a help message.

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0.1

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