A library to draw graphics in a terminal using Unicode braille art. Requires numpy.
Sample usage:
#!/usr/bin/env python3
import time
from termgraphics import termgraphics
g = TermGraphics()
g.clear()
for x in range(g.shape[0]):
y = int(0.5 * g.shape[1] * ((2*x/g.shape[0]-1)**3 + 1))
g.point((x,y))
g.draw()
time.sleep(5)
It also supports using ASCII art, in case you are inside a screen or something else that doesn't support Unicode terminals.
#!/usr/bin/env python3
import time
import termgraphics
g = termgraphics.TermGraphics(mode = termgraphics.MODE_EASCII)
g.clear()
for x in range(g.shape[0]):
y = int(0.5 * g.shape[1] * ((2*x/g.shape[0]-1)**3 + 1))
g.point((x,y))
g.draw()
time.sleep(5)
It also supports changing colors as per ANSI terminal specifications. However, since it is only possible to set the color of a full character, if 2 points of different colors occur in the same character block, the latter color will be used.
#!/usr/bin/env python3
import math
import time
import termgraphics
g = termgraphics.TermGraphics()
g.clear()
# draw axes
g.set_color(termgraphics.COLOR_WHITE)
g.line((0, g.shape[1]/2), (g.shape[0], g.shape[1]/2))
g.line((g.shape[0]/2, 0), (g.shape[0]/2, g.shape[1]))
# draw a sin in red
g.set_color(termgraphics.COLOR_RED)
points = []
for x in range(g.shape[0]):
y = g.shape[1]/2*(1+math.sin(2*math.pi*x/g.shape[0]))
points.append((int(x), int(y)))
g.poly(points)
# draw a cos in blue
g.set_color(termgraphics.COLOR_BLUE)
points = []
for x in range(g.shape[0]):
y = g.shape[1]/2*(1+math.cos(2*math.pi*x/g.shape[0]))
points.append((int(x), int(y)))
g.poly(points)
g.draw()
time.sleep(5)
You can also display monochrome images:
#!/usr/bin/env python3
import termgraphics
from PIL import Image, ImageOps
import requests
from io import BytesIO
import time
g = termgraphics.TermGraphics()
def get_image(url = 'https://imgs.xkcd.com/comics/estimation.png'):
response = requests.get(url)
img = Image.open(BytesIO(response.content))
return img
if __name__ == "__main__":
img = get_image()
img = ImageOps.invert(img).resize((200,280), Image.NEAREST)
g.image(list(img.getdata()), img.width, img.height, (0, 0), image_type = termgraphics.IMAGE_MONOCHROME)
g.draw()
time.sleep(2)
There is also preliminary support for RGB images but these do not use the Braille characters because it is not possible to set different colors for multiple portions of the same character cell. Hence the image needs to be resized by a factor of 2 in the X direction and 4 in the Y direction:
#!/usr/bin/env python3
import termgraphics
from PIL import Image, ImageOps
import requests
from io import BytesIO
import time
g = termgraphics.TermGraphics()
def get_image(url = 'https://devblogs.nvidia.com/parallelforall/wp-content/uploads/2016/07/cute.jpg'):
response = requests.get(url)
img = Image.open(BytesIO(response.content))
return img
if __name__ == "__main__":
img = get_image().resize((200//2,150//4), Image.NEAREST)
print(img)
g.image(list(img.getdata()), img.width, img.height, (0, 0), image_type = termgraphics.IMAGE_RGB_2X4)
