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https://github.com/Doodle3D/Doodle3D-Slicer.git
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114 lines
2.5 KiB
Python
Executable File
114 lines
2.5 KiB
Python
Executable File
"""Join multiple binary files into single file and generate JSON snippet with offsets
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-------------------------------------
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How to use
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-------------------------------------
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python join_ctm.py -i "part_*.ctm" -o joined.ctm [-j offsets.js]
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Will read multiple files following wildcard pattern (ordered lexicographically):
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part_000.ctm
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part_001.ctm
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part_002.ctm
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...
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part_XXX.ctm
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And generate single concatenated files:
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joined.ctm
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offsets.js (optional, offsets are also dumped to standard output)
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"""
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import getopt
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import glob
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import sys
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import os
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# #####################################################
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# Templates
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# #####################################################
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TEMPLATE_JSON = u"""\
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"offsets": [ %(offsets)s ],
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"""
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# #############################################################################
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# Helpers
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# #############################################################################
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def usage():
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print 'Usage: %s -i "filename_*.ctm" -o filename.ctm [-j offsets.js]' % os.path.basename(sys.argv[0])
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# #####################################################
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# Main
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# #####################################################
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if __name__ == "__main__":
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# get parameters from the command line
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try:
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opts, args = getopt.getopt(sys.argv[1:], "hi:o:j:", ["help", "input=", "output=", "json="])
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except getopt.GetoptError:
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usage()
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sys.exit(2)
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inpattern = ""
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outname = ""
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jsonname = ""
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for o, a in opts:
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if o in ("-h", "--help"):
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usage()
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sys.exit()
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elif o in ("-i", "--input"):
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inpattern = a
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elif o in ("-o", "--output"):
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outname = a
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elif o in ("-j", "--json"):
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jsonname = a
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# quit if required parameters are missing
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if inpattern == "" or outname == "":
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usage()
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sys.exit(2)
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outfile = open(outname, "wb")
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matches = glob.glob(inpattern)
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matches.sort()
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total = 0
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offsets = []
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for filename in matches:
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filesize = os.path.getsize(filename)
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offsets.append(total)
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total += filesize
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print filename, filesize
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infile = open(filename, "rb")
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buffer = infile.read()
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outfile.write(buffer)
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infile.close()
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outfile.close()
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json_str = TEMPLATE_JSON % {
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"offsets" : ", ".join(["%d" % o for o in offsets])
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}
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print json_str
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if jsonname:
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jsonfile = open(jsonname, "w")
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jsonfile.write(json_str)
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jsonfile.close() |