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107 lines
3.7 KiB
Python
107 lines
3.7 KiB
Python
import sys
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import subprocess
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import itertools
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from util import dicttoxmlfile, get_packlist_dict, dicttoxmlstring
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from arrange_spread2 import arrange_in_layer
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import cPickle
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from binascii import a2b_base64
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import tempfile
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import os
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import zlib
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import fcntl
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import ctypes
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libpallet = ctypes.cdll.LoadLibrary('./libpallet.so.0.0.0')
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libpallet.evaluate.restype = ctypes.c_double
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def evaluate_layers_rests(layers, rests, scores, pallet, result_max):
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rest_layers = list()
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# sort rests by space they cover and move them to the center of the pile
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# append them to the layer list
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for rest in sorted(rests, key=lambda rest: sum([article['Article']['Length']*article['Article']['Width'] for article in rest]), reverse=True):
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plength, pwidth = (pallet['Dimensions']['Length'], pallet['Dimensions']['Width'])
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root, layer, rest = arrange_in_layer(rest, plength, pwidth)
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com_x = 0
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com_y = 0
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for article in layer:
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com_x += article['PlacePosition']['X']
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com_y += article['PlacePosition']['Y']
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com_x, com_y = com_x/len(layer), com_y/len(layer)
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diff_x, diff_y = plength*0.5-com_x, pwidth*0.5-com_y
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#TODO: for long/wide layers the center of mass might delta might
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# create an overhang over one side of the pallet
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for article in layer:
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article['PlacePosition']['X'] += diff_x
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article['PlacePosition']['Y'] += diff_y
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rest_layers.append(layer)
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for permut_layers in itertools.permutations(layers):
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pack_sequence = 1
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pack_height = 0
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articles_to_pack = list()
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for layer in list(permut_layers)+rest_layers:
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pack_height += layer[0]['Article']['Height']
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#if pack_height > pallet['Dimensions']['MaxLoadHeight']:
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# break
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for article in layer:
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article['PackSequence'] = pack_sequence
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article['PlacePosition']['Z'] = pack_height
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articles_to_pack.append(article)
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pack_sequence += 1
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packlist = get_packlist_dict(pallet, articles_to_pack)
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_, tmp = tempfile.mkstemp()
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dicttoxmlfile(packlist, tmp)
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# ugly, ugly, ugly, ugly hack - dont copy this...
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#score = float(subprocess.check_output(sys.argv[3]+" -o "
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# +sys.argv[1]+" -p "+tmp
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# +" -s "+sys.argv[4]+" --headless | grep Score", shell=True).split(' ')[1].strip())
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score = libpallet.evaluate(sys.argv[1], tmp, sys.argv[3])
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if score >= max(scores+[0]):
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result_max[0] = dicttoxmlstring(packlist)
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os.remove(tmp)
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scores.append(score)
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def main():
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if len(sys.argv) < 5:
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print "usage:", sys.argv[0], "order.xml packlist.xml scoring.xml LAYER [LAYER..]"
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exit(1)
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scores = list()
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result_max = [None]
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for arg in sys.argv[4:]:
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layers, rests, pallet = cPickle.loads(zlib.decompress(a2b_base64(arg)))
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evaluate_layers_rests(layers, rests, scores, pallet, result_max)
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print max(scores)
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#print "max:", max(scores)
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#print "min:", min(scores)
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#mean = sum(scores)/len(scores)
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#print "mean:", mean
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#from math import sqrt
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#print "stddev:", sqrt(sum([(x-mean)**2 for x in scores])/len(scores))
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lock = open("score_max.lock", "w")
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fcntl.lockf(lock, fcntl.LOCK_EX)
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if os.path.isfile("score_max"):
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with open("score_max", "r") as f:
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score_max = float(f.read())
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else:
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score_max = 0.0
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if max(scores) > score_max:
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with open(sys.argv[2], "w+") as f:
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f.write(result_max[0])
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with open("score_max", "w+") as f:
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f.write(str(max(scores)))
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lock.close()
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if __name__ == "__main__":
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main()
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