* Tony Vance [Fri, 6 Feb 2004 at 16:20 -0700] > Hi everyone, > > I got a cool python script from my professor that goes to NASA's > astronomy picture of the day, downloads it, and then uses ImageMagick to > resize it and composite it with a black background. Very cool. I've > attached it for those who are interested.
Sorry to resurrect an old thread here, but thought some might enjoy this. I've modified the script so it'll get the high-res pics instead of the scaled-down one on the page, and I also added the ability to specify a day for downloading: Astronomy.py yymmdd So if any of you have been using this and want to see what some of the past days have been, now you can see.
#!/usr/bin/python # Author: Conan Albrecht ([EMAIL PROTECTED]) # License: GNU Public License (www.fsf.org) # Description Retrieves the astronomy picture of the day import os import os.path import urllib ASTRONOMY_URL = 'http://antwrp.gsfc.nasa.gov/apod/' ASTRONOMY_PAGE = 'astropix.html' if len(sys.argv) > 1: DATE = sys.argv[1] ASTRONOMY_PAGE = 'ap' + DATE + '.html' PIC_DIR = "~/pictures/" CACHE_LOCATION = PIC_DIR + 'Astronomy/' SCALED_FILE = PIC_DIR + 'AstropixScaled.jpg' BLACK_BACKGROUND = PIC_DIR + 'BlackBackground.jpg' FINAL_FILE = PIC_DIR + 'AstropixBackground.jpg' RESOLUTION = "1400x1050" # get the URL to the current picture print "Determining today's picture url..." for line in urllib.urlopen(ASTRONOMY_URL + ASTRONOMY_PAGE).readlines(): if line.lower().find('img src=') >= 0: pos1 = line.find('"') + 1 pos2 = line.find('"', pos1) pic_url = ASTRONOMY_URL + line[pos1:pos2] break # retrieve it and save to the cache directory print "Retrieving today's picture..." localfile = CACHE_LOCATION + os.path.split(pic_url)[1] urllib.urlretrieve(pic_url, localfile) # use imagemagick to scale it and apply the black background print 'Scaling to ' + RESOLUTION + '...' os.system('convert -scale ' + RESOLUTION + ' ' + localfile + ' ' + SCALED_FILE) print 'Filling in extra space...' os.system('composite -gravity Center ' + SCALED_FILE + ' ' + BLACK_BACKGROUND + ' ' + FINAL_FILE)
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