fixed references to "bounds" in config files

accept missing "Default" sections


git-svn-id: https://pycam.svn.sourceforge.net/svnroot/pycam/trunk@532 bbaffbd6-741e-11dd-a85d-61de82d9cad9

src/pycam/Geometry/PolygonExtractor.py

@@ -235,7 +235,14 @@ class PolygonExtractor:
         curr_path = Iterator(self.curr_path_list)
 
         winding = 0
-        while (prev_point.remains() > 0) or (curr_point.remains() > 0):
+        loop_counter = 0
+        while (prev_point.remains() > 1) or (curr_point.remains() > 1):
+            loop_counter += 1
+            if loop_counter % 1000 == 999:
+                print "prev: %s" % str(prev_point.remains())
+                print "curr: %s" % str(curr_point.remains())
+                if loop_counter > 100000:
+                    break
             if DEBUG_POLYGONEXTRACTOR:
                 print "num_prev=%d, num_curr=%d" \
                         % (prev_point.remains(), curr_point.remains())

src/pycam/Gui/Settings.py

@@ -299,6 +299,7 @@ process: 3
     }
 
     DEFAULT_SUFFIX = "Default"
+    REFERENCE_TAG = "_reference_"
 
     def __init__(self):
         self.config = None
@@ -404,8 +405,12 @@ process: 3
                                 raw=raw)
                     except ConfigParser.NoOptionError:
                         try:
-                            value_raw = self.config.get(
-                                    prefix + self.DEFAULT_SUFFIX, key, raw=raw)
+                            try:
+                                value_raw = self.config.get(
+                                        prefix + self.DEFAULT_SUFFIX, key, raw=raw)
+                            except (ConfigParser.NoSectionError,
+                                    ConfigParser.NoOptionError):
+                                value_raw = None
                         except ConfigParser.NoOptionError:
                             value_raw = None
                     if not value_raw is None:
@@ -448,6 +453,11 @@ process: 3
             try:
                 return lists[key].index(value)
             except ValueError:
+                # special handling for non-direct object references ("bounds")
+                for index, item in enumerate(lists[key]):
+                    if (self.REFERENCE_TAG in item) \
+                            and (value is item[self.REFERENCE_TAG]):
+                        return index
                 return None
         else:
             return str(value_type(value))
@@ -472,6 +482,8 @@ process: 3
             for index, axis in enumerate("xyz"):
                 result["%s_low" % axis] = low[index]
                 result["%s_high" % axis] = high[index]
+            # special handler to allow tasks to track this new object
+            result[self.REFERENCE_TAG] = b
             return result
         result = []
         if tools is None:

src/pycam/PathGenerators/__init__.py

@@ -77,12 +77,13 @@ def get_free_paths_triangles(model, cutter, p1, p2):
 
     count = 0
     points = []
+    maybe_first_is_missing = False
     for h in hits:
         if h.dir == forward:
             if count == 0:
                 if h.d >= 0:
                     if len(points) == 0:
-                        points.append(p1)
+                        maybe_first_is_missing = True
                     points.append(h.cl)
             count += 1
         else:
@@ -91,10 +92,12 @@ def get_free_paths_triangles(model, cutter, p1, p2):
                 if h.d <= xyz_dist:
                     points.append(h.cl)
 
-    if len(points)%2 == 1:
-        points.append(p2)
+    if maybe_first_is_missing:
+        points.insert(0, p1)
+        if len(points) % 2 == 1:
+            points.append(p2)
 
-    if len(hits)==0:
+    if len(hits) == 0:
         points.append(p1)
         points.append(p2)