LED matrix panel PPM file generation (Japanese RGB compatible)

Generate a ppm file with argument characters and RGB in the RGB matrix. (Python3 cannot be adjusted yet) When combined with nodejs, characters can be displayed in real time on the web interface.

Library installation apt install fonts-takao-mincho apt install libjpeg-dev pip install Pillow

`makePpm.pl`



#encoding:UTF-8
#-*- codinf:utf-8 -*-

import sys
from PIL import ImageFont
from PIL import Image
from PIL import ImageDraw

args = sys.argv
inText = args[1].decode('utf-8')

rgb = args[2].split(",")
list = list(map(int,rgb))

viewText = []
viewText.append( ((u"    ") + inText ,tuple(list)))
text = tuple(viewText)

font = ImageFont.truetype("/usr/share/fonts/truetype/takao-mincho/TakaoMincho.ttf", 16)
all_text = ""
for text_color_pair in text:
    t = text_color_pair[0]
    all_text = all_text + t

width, ignore = font.getsize(all_text)

im = Image.new("RGB", (width + 30, 16), "black")
draw = ImageDraw.Draw(im)

x = 0;
for text_color_pair in text:
    t = text_color_pair[0]
    c = text_color_pair[1]
    #print("t=" + t + " " + str(c) + " " + str(x))
    draw.text((x, 0), t, c, font=font)
    x = x + font.getsize(t)[0]

im.save("/var/tmp/text.ppm")

Run python makePpm.pl string 255,255,255
Other Referenced site https://digirakuda.org/contents/report/products/raspberrypi/electric-bulletin-board/