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133 lines (109 loc) · 4.39 KB
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
Plotting terminal based scatterplots
"""
from __future__ import print_function
import csv
import sys
import optparse
from .utils.helpers import *
from .utils.commandhelp import scatter
def get_scale(series, is_y=False, steps=20):
min_val = min(series)
max_val = max(series)
scaled_series = []
for x in drange(min_val, max_val, (max_val - min_val) / steps,
include_stop=True):
if x > 0 and scaled_series and max(scaled_series) < 0:
scaled_series.append(0.0)
scaled_series.append(x)
if is_y:
scaled_series.reverse()
return scaled_series
def _plot_scatter(xs, ys, size, pch, colour, title, cs, xtitle, ytitle):
plotted = set()
x_scale = get_scale(xs, False, size)
y_scale = get_scale(ys, True, size)
scaled_length_x = len(x_scale)
if title:
print(box_text(title, 2 * (scaled_length_x + 1)))
if ytitle:
print(f"y: {ytitle}")
print("+" + "-" * (2 * (scaled_length_x + 1)) + "+")
yaxis = min(x_scale, key=abs) if min(x_scale) < 0 < max(x_scale) else None
xaxis = min(y_scale, key=abs) if min(y_scale) < 0 < max(y_scale) else None
for y in y_scale:
print("|", end=' ')
for x in x_scale:
if x == xaxis and y == xaxis:
point = "o"
elif x == yaxis:
point = "|"
elif y == xaxis:
point = "–"
else:
point = " "
for (i, (xp, yp)) in enumerate(zip(xs, ys)):
if xp <= x and yp >= y and (xp, yp) not in plotted:
point = pch
plotted.add((xp, yp))
if cs:
colour = cs[i]
printcolour(point + " ", True, colour)
print(" |")
print("+" + "-" * (2 * (scaled_length_x + 1)) + "+")
if xtitle:
print("{0:>{1}}".format(f"x: {xtitle}", 2 * (scaled_length_x + 2)))
def plot_scatter(f, xs, ys, size, pch, colour, title, xtitle="", ytitle=""):
"""
Form a complex number.
Arguments:
f -- comma delimited file w/ x,y coordinates
xs -- if f not specified this is a file w/ x coordinates
ys -- if f not specified this is a filew / y coordinates
size -- size of the plot
pch -- shape of the points (any character)
colour -- colour of the points
title -- title of the plot
"""
cs = None
if f:
if isinstance(f, str):
with open(f) as fh:
data = [tuple(line.strip().split(',')) for line in fh]
else:
data = [tuple(line.strip().split(',')) for line in f]
xs = [float(i[0]) for i in data]
ys = [float(i[1]) for i in data]
if len(data[0]) > 2:
cs = [i[2].strip() for i in data]
elif isinstance(xs, list) and isinstance(ys, list):
pass
else:
with open(xs) as fh:
xs = [float(str(row).strip()) for row in fh]
with open(ys) as fh:
ys = [float(str(row).strip()) for row in fh]
_plot_scatter(xs, ys, size, pch, colour, title, cs, xtitle, ytitle)
def main():
parser = optparse.OptionParser(usage=scatter['usage'])
parser.add_option('-f', '--file', help='a csv w/ x and y coordinates', default=None, dest='f')
parser.add_option('-t', '--title', help='title for the chart', default="", dest='t')
parser.add_option('-X', '--xtitle', help='x-axis title', default="", dest='xtitle')
parser.add_option('-Y', '--ytitle', help='y-ayis title', default="", dest='ytitle')
parser.add_option('-x', help='x coordinates', default=None, dest='x')
parser.add_option('-y', help='y coordinates', default=None, dest='y')
parser.add_option('-s', '--size', help='y coordinates', default=20, dest='size', type='int')
parser.add_option('-p', '--pch', help='shape of point', default="x", dest='pch')
parser.add_option('-c', '--colour', help='colour of the plot (%s)' %
colour_help, default='default', dest='colour')
opts, args = parser.parse_args()
if opts.f is None and (opts.x is None or opts.y is None):
opts.f = sys.stdin.readlines()
if opts.f or (opts.x and opts.y):
plot_scatter(opts.f, opts.x, opts.y, opts.size, opts.pch, opts.colour, opts.t, opts.xtitle, opts.ytitle)
else:
print("nothing to plot!")
if __name__ == "__main__":
main()