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Plotting library for the terminal.

Project description


A plotting utility (library) for plotting data into the terminal encoded as unicode characters as an xy graph, inspired by matplotlib. This tool doesn't have any dependencies on gnuplot or numpy.


  • multi scatter plots
  • automatic tick setting for linear scales
  • automatic data rescaling to fit large numbers as tick labels
  • axis labels
  • unit labels
  • command line interface for plotting xy data file ($ plottoterminal file)


  • command line interface for xy(z) data plotting
  • bar plot
  • legends
  • z value heatmap
  • color coding support
  • custom marker styles


import plottoterminal as ptt
import numpy as np

f = ptt.Figure(figsize=(57, 20))
xs = np.linspace(-10, 10, 200)

ys = xs ** 2
f.scatter(xs, ys)

ys2 = -xs ** 2
f.scatter(xs, ys2)



   1.0ᐃxx                                         xx     
×10^2 │ xx                                       xx      
[m^2] │  xxx                                   xxx       
      │    xx                                 xx         
   0.5├      xx                             xx           
      │       xxxx                       xxxx            
      │          xxx                   xxx               
x     │             xxxx           xxxx                  
*  0.0├                *************                     
x     │             ****           ****                  
      │          ***                   ***               
      │       ****                       ****            
  -0.5├      **                             **           
      │    **                                 **         
      │  ***                                   ***       
      │ **                                       **      
  -1.0├**                                         **     
       -1.0       -0.5       0.0        0.5        1.0   
                                x               ×10^1 [m]


Installing from source:

git clone
cd plottoterminal
python3 -m pip install --user .

Installing from pypi:

python3 -m pip install --user plottoterminal

Command line usage

To plot a file composed of rows of x and y data separated by whitespace, run the command $ plottoterminal file.xy.

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