include pallet rotation

bruteforce2.py

@@ -6,14 +6,33 @@ from util import xmlfiletodict, dicttoxmlfile, get_pallet, get_articles, get_pac
 from arrange_spread2 import arrange_in_layer, spread_articles, find_articles
 import cPickle
 from binascii import b2a_base64
+import zlib
+
+def rotate(node):
+    if node is None:
+        return
+
+    if node['article']:
+        # exchange x and y coordinate
+        node['article']['PlacePosition']['X'], node['article']['PlacePosition']['Y'] = node['article']['PlacePosition']['Y'], node['article']['PlacePosition']['X']
+        # rotate article
+        node['article']['Orientation'] = node['article']['Orientation']%2+1
+
+    rotate(node['right'])
+    rotate(node['down'])
 
 def get_layers(bins, pallet, rot_article=False, rot_pallet=False):
     for abin in bins:
         bins[abin] = sorted(bins[abin], key=lambda article: article['Article']['Length']*article['Article']['Width'], reverse=True)
         plength, pwidth = (pallet['Dimensions']['Length'], pallet['Dimensions']['Width'])
+        if rot_pallet:
+            root, layer, rest = arrange_in_layer(bins[abin], pwidth, plength, rot_article=rot_article)
+        else:
             root, layer, rest = arrange_in_layer(bins[abin], plength, pwidth, rot_article=rot_article)
         while layer:
             spread_articles(root)
+            if rot_pallet:
+                rotate(root)
 
             occupied_area = 0
             for article in layer:
@@ -26,8 +45,14 @@ def get_layers(bins, pallet, rot_article=False, rot_pallet=False):
             else:
                 rot_article, rot_pallet = (yield layer, None)
 
+            if rot_pallet:
+                root, layer, rest = arrange_in_layer(rest, pwidth, plength, rot_article=rot_article)
+            else:
                 root, layer, rest = arrange_in_layer(rest, plength, pwidth, rot_article=rot_article)
 
+def get_bit(num, pos):
+    return num>>pos&1
+
 def main():
     if len(sys.argv) != 3:
         print "usage:", sys.argv[0], "order.xml packlist.xml"
@@ -49,12 +74,12 @@ def main():
 
     stuff1 = list()
 
-    #for order in itertools.product([True, False], repeat=12):
+    for order in itertools.product([0,1,2,3], repeat=8):
-    for order in [[True]*12,]:
+    #for order in [[True]*12,]:
         rests = list()
         layers = list()
 
-        it = get_layers(bins, pallet, order[0], False)
+        it = get_layers(bins, pallet, get_bit(order[0], 0), get_bit(order[0], 1))
         layer, rest = it.next()
         if layer:
             layers.append(layer)
@@ -64,7 +89,7 @@ def main():
         fail = True
         for rot_article in order[1:]:
             try:
-                layer, rest = it.send((rot_article, False))
+                layer, rest = it.send((get_bit(rot_article,0), get_bit(rot_article,1)))
                 if layer:
                     layers.append(layer)
                 if rest:
@@ -74,6 +99,6 @@ def main():
                 break
         if fail:
             raise Exception("finished early")
-        print b2a_base64(cPickle.dumps((layers, rests, pallet))),
+        print b2a_base64(zlib.compress(cPickle.dumps((layers, rests, pallet)))),
 if __name__ == "__main__":
     main()

bruteforce3.py

@@ -9,6 +9,7 @@ import marshal
 from binascii import a2b_base64
 import tempfile
 import os
+import zlib
 
 def evaluate_layers_rests(layers, rests, scores, pallet):
     rest_layers = list()
@@ -27,6 +28,8 @@ def evaluate_layers_rests(layers, rests, scores, pallet):
 
         diff_x, diff_y = plength*0.5-com_x, pwidth*0.5-com_y
 
+        #TODO: for long/wide layers the center of mass might delta might
+        #      create an overhang over one side of the pallet
         for article in layer:
             article['PlacePosition']['X'] += diff_x
             article['PlacePosition']['Y'] += diff_y
@@ -57,16 +60,16 @@ def evaluate_layers_rests(layers, rests, scores, pallet):
         score = float(subprocess.check_output("../palletandtruckviewer-3.0/palletViewer -o "
             +sys.argv[1]+" -p "+tmp
             +" -s ../icra2011TestFiles/scoreAsPlannedConfig1.xml --headless | grep Score", shell=True).split(' ')[1].strip())
-        scores.append(score)
         if score > max(scores+[0]):
             shutil.move(tmp, sys.argv[2])
         else:
             os.remove(tmp)
+        scores.append(score)
 
 def main():
     scores = list()
     for arg in sys.argv[3:]:
-        layers, rests, pallet = cPickle.loads(a2b_base64(arg))
+        layers, rests, pallet = cPickle.loads(zlib.decompress(a2b_base64(arg)))
         evaluate_layers_rests(layers, rests, scores, pallet)
 
     print max(scores)