binary counting with a 7 segment LCD

jo

here is some code to draw a 7 segment LCD and use the segments to count up to 127 (2**7-1).


class digit(object):
	"""a digit of the lcd display"""
	def __init__(self, pos, size, seg_l, seg_h):
		self.pos    = pos
		self.size   = size
		self.seg_l  = seg_l
		self.seg_h  = seg_h

	def draw_segment(self, indx, l, h):
		seg_poss = [
			(           0,  self.size),
			( self.size/2,  self.size/2),
			( self.size/2, -self.size/2),
			(           0, -self.size),
			(-self.size/2, -self.size/2),
			(-self.size/2,  self.size/2),
			(           0,  0), ]

		x = self.pos[0] + seg_poss[indx][0]
		y = self.pos[1] + seg_poss[indx][1]  

		if indx in [1, 2, 4, 5]:
			polygon(
				(x, y + l/2),
				(x - h/2, y + l/2 - h/2),
				(x - h/2, y - l/2 + h/2),
				(x, y - l/2),
				(x + h/2, y - l/2 + h/2),
				(x + h/2, y + l/2 - h/2),)
		else: 		
			polygon(
				(x + l/2, y),
				(x + l/2 - h/2, y + h/2),
				(x - l/2 + h/2, y + h/2),
				(x - l/2, y),
				(x - l/2 + h/2, y - h/2),
				(x + l/2 - h/2, y - h/2),)

	def draw(self, num):
		for s in range(7):
			if (num & (1<<s)):
				self.draw_segment(s, self.seg_l, self.seg_h)

# ---------------------------
 
int_to_bin = {
    0 :  63,
    1 :   6,
    2 :  91,
    3 :  79,
    4 : 102, 
    5 : 109, 
    6 : 125,
    7 :   7,
    8 : 127,
    9 : 111,
    }

# ---------------------------

PW, PH = 500, 500

d  = digit((0, 0), PW/3, 150, 30)
d_int = digit((PW*.5, -PH*.4), 16, 14, 4)


for n in range(128):
    assert (0 <= n < 128), "Values should be higher than -1 and smaller than 128!"    
    newPage(PW, PH)
    fill(.2)
    rect(0, 0, PW, PH)
    translate(PW/2, PH/2)
    skew(2)
    fill(0, 1, 0)
    d.seg_h = n+4
    d.draw(n)

    with savedState():
        for i in reversed(str(n)):
            translate(-30)
            d_int.draw(int_to_bin[int(i)])

should make animations like this: