lib/scripts/pic2ascii.py

   1 #!/usr/bin/python
   2 # This script converts a raster format picture into an ascii representation
   3 # with the suffix .asc
   4
   5 import sys
   6 import os
   7 import os.path
   8 import string
   9
  10 pid = os.fork()
  11 if pid == 0:
  12         os.execvp("convert", ["convert", sys.argv[1], "temporary_filename_that_is_long.gif"])
  13         print "Could not run convert"
  14         os.exit(1)
  15 os.wait()
  16
  17 os.system("identify temporary_filename_that_is_long.gif > temp.dim")
  18
  19 fp = open("temp.dim", "r")
  20 line = fp.readline()
  21 lines = string.split(line,' ')
  22 dims = string.split(lines[1],'x')
  23 xsize = float(dims[0])
  24 ysize = float(string.split(dims[1],'+')[0])
  25
  26 aspect_ratio = xsize / ysize
  27
  28 if len(sys.argv) > 2:
  29         resulting_x = int(sys.argv[2])
  30 else:
  31         resulting_x = 40
  32 resulting_y = int(resulting_x / aspect_ratio)
  33
  34 os.system("echo s | gifscii temporary_filename_that_is_long.gif %d %d" % (resulting_x, resulting_y))
  35
  36 os.system("tail +3 temporary_filename_that_is_long.asc > temporary_filename_that_is_long2.asc")
  37
  38 pid = os.fork()
  39 if pid == 0:
  40         os.execvp("mv", ["mv", "temporary_filename_that_is_long2.asc", os.path.splitext(sys.argv[1])[0] + ".asc"])
  41         print "Could not rename file"
  42         os.exit(1)
  43 os.wait(pid)
  44
  45 os.system("rm temporary_filename_that_is_long.gif temporary_filename_that_is_long.asc")
  46