For our exploration of drawing faux-digits, this function draws every possible combination that can be displayed on a standard digital clock. It saves each as a PNG.

digital_clock.py

import matplotlib.pyplot as plt


# Vertices of the digit, starting at the origin, moving clockwise
POINTS = {
	"A":	[0, 0],
	"B":	[0, 1],
	"C":	[0, 2],
	"D":	[1, 2],
	"E":	[1, 1],
	"F":	[1, 0],
}

# Lines of the digit, starting at the top
SEGMENTS = {
	0:	{
		"p1":	POINTS["C"],
		"p2":	POINTS["D"]
	},
	1:	{
		"p1":	POINTS["C"],
		"p2":	POINTS["B"]
	},
	2:	{
		"p1":	POINTS["D"],
		"p2":	POINTS["E"]
	},
	3:	{
		"p1":	POINTS["B"],
		"p2":	POINTS["E"]
	},
	4:	{
		"p1":	POINTS["B"],
		"p2":	POINTS["A"]
	},
	5:	{
		"p1":	POINTS["E"],
		"p2":	POINTS["F"]
	},
	6:	{
		"p1":	POINTS["A"],
		"p2":	POINTS["F"]
	},
}


def draw_numeral(decimal_number):
	fig, ax = plt.subplots()
	
	binary_string = format(decimal_number, '07b')
	for bit, ind in zip(binary_string, range(7)):
		if int(bit):
			draw_segment(ax, ind)

	ax.set_xlim([-1, 2])
	ax.set_ylim([-0.25, 2.25])
	plt.axis('off')
	plt.savefig(f"numerals/{binary_string}.png", transparent=True)
	plt.clf()


def draw_segment(ax, line_number):
	p1 = SEGMENTS[line_number]["p1"]
	p2 = SEGMENTS[line_number]["p2"]
	draw_line(ax, p1, p2)


def draw_line(ax, p1, p2):
	x = [p1[0], p2[0]]
	y = [p1[1], p2[1]]
	ax.plot(x, y, color="red", linewidth=3.0)


if __name__ == "__main__":
	for decimal_number in range(127):
		draw_numeral(decimal_number + 1)