def spin_image(img):
'''Display an image on the LCD screen and spin it.'''
lcd.pos(4, 24)
lcd.puts('Generating frames...')
work = img.convert('RGBA')
frames = []
for angle in range(0, 360, args.step):
lcd.pos(4)
lcd.puts('%3s' % (int((angle / 360.0) * 100)))
lcd.send_data([0xff] * int(angle / 360.0 * (128 - 24)))
x = work.rotate(angle, expand=True)
x = x.crop(box=(x.size[0] / 2 - work.size[0] / 2,
x.size[1] / 2 - work.size[1] / 2,
x.size[0] / 2 + work.size[0] / 2,
x.size[1] / 2 + work.size[1] / 2))
mask = Image.new('RGBA', x.size, (255, ) * 4)
out = Image.composite(x, mask, x)
screen.drawbitmap(out.convert('1'), centerx=True, centery=True)
frames.append(screen[:])
while True:
for frame in frames:
lcd.write_buffer(frame)
time.sleep(args.delay)
def spin_image(img):
'''Display an image on the LCD screen and spin it.'''
lcd.pos(4, 24)
lcd.puts('Generating frames...')
work = img.convert('RGBA')
frames = []
for angle in range(0, 360, args.step):
lcd.pos(4)
lcd.puts('%3s' % (int((angle/360.0) * 100)))
lcd.send_data([0xff] * int(angle/360.0 * (128-24)))
x = work.rotate(angle, expand=True)
x = x.crop(box=(x.size[0]/2 - work.size[0]/2,
x.size[1]/2 - work.size[1]/2,
x.size[0]/2 + work.size[0]/2,
x.size[1]/2 + work.size[1]/2))
mask = Image.new('RGBA', x.size, (255,) * 4)
out = Image.composite(x, mask, x)
screen.drawbitmap(out.convert('1'), centerx=True, centery=True)
frames.append(screen[:])
while True:
for frame in frames:
lcd.write_buffer(frame)
time.sleep(args.delay)
def hscroll_image(img):
'''Display an image on the LCD screen and scroll it horizontally.'''
screen.drawbitmap(img, centerx=True, centery=True)
while True:
screen.hscroll(args.step)
lcd.write_buffer(screen)
time.sleep(args.delay)
def hscroll_image(img):
'''Display an image on the LCD screen and scroll it horizontally.'''
screen.drawbitmap(img, centerx=True, centery=True)
while True:
screen.hscroll(args.step)
lcd.write_buffer(screen)
time.sleep(args.delay)
def shift_imgs(screen, lcd):
lcd.clear()
h = random.randint(-2, 2)
v = random.randint(0, 2)
shift = (h, v)
screen.hscroll(shift[0])
screen.vscroll(shift[1])
lcd.write_buffer(screen)
screen.clear()
def display_img(img, screen, lcd, size = 100, x=0, y=0):
"""
Displays PIL image objects on the ST7565 display at a specified x and y coordinates.
`img`: A `PIL` image object.
`screen`: A bitmap object. What will be written to the display.
`lcd`: An lcd object.
"""
if not(size == 100):
img = resize_image(img, size)
try:
screen.drawbitmap(img, x, y)
lcd.write_buffer(screen)
except IndexError:
size = img.size
print("Image with size (%d,%d) cannot be fit onto (128, 64) size display using given coordinates: (%d,%d)" % (size[0], size[1], x, y))
def display_image(img):
'''Display an image on the LCD screen.'''
screen.drawbitmap(img, centerx=True, centery=True)
lcd.write_buffer(screen)
def display_image(img):
'''Display an image on the LCD screen.'''
screen.drawbitmap(img, centerx=True, centery=True)
lcd.write_buffer(screen)
