one more step into the face problem

s285_order/node.py

@@ -1,7 +1,7 @@
 class Node():
     nodes = []
     grid = dict()
-    ver = set()
+    ver = []
 
     def __init__(self, x, y, z):
         self.ix = x

s285_order/order_segments.py

@@ -0,0 +1,39 @@
+def order_segments(unord):
+    # first sort the segments
+    p0, p1 = unord.pop()
+    ord = [(p0, p1)]
+    while unord:
+        for pair in unord:
+            if p0 in pair or p1 in pair:
+                ord.append(pair)
+                unord.remove(pair)
+                p0, p1 = pair[0], pair[1]
+                break
+        else:  # break a possible infinite while
+            print("malformed edge sequence")
+            break
+##    # now fix each segment's internal vertex order
+##    unord = ord
+##    p0, p1 = unord.pop(0)
+##    if p1 != unord[0][0]:
+##        p1, p0 = p0, p1
+##    ord = [(p0, p1)]
+##    for pair in unord:
+##        if p1 == pair[0]:
+##            p0, p1 = pair[0], pair[1]        
+##        else:
+##            p0, p1 = pair[1], pair[0]
+##    ord.append((p0, p1))
+    # if you want the vertex points only :)
+    p0, p1 = ord.pop(0)
+    if p1 != ord[0][0]:
+        p1, p0 = p0, p1
+    points = [p0]
+    for pair in ord:
+        if p1 == pair[0]:
+            p0, p1 = pair[0], pair[1]        
+        else:
+            p0, p1 = pair[1], pair[0]
+        points.append(p0)
+        
+    return points

s285_order/s285_order.pyde

@@ -9,6 +9,7 @@ from random import choice
 from random import randint
 
 from node import Node
+from order_segments import order_segments
 
 def setup():
     global ang
@@ -21,29 +22,23 @@ def setup():
     cam.setMaximumDistance(750)
     random_seed(101)
     init_grid(GRID_SIZE)
-    
-    global segmentos, first, next_, ordenados
-    for l in range(1):
-        segmentos = [t for t in Node.ver if t[0][3] == l]       
-        first, next_ = segmentos[-1]
-        # ordenados = sort(segmentos)
-
             
 def draw():
     global ang, segmentos, next_
     background(0)
     rotateY(ang)
+    
     for node in Node.nodes:
-        node.plot()
+        node.plot()       
+    
 
-    for l in range(GRID_SIZE):   
-        fill(255)      
-        beginShape()    
-        for (x, y, z, iz), (x2, y2, z2, _) in segmentos:
-            if l == iz:
+    stroke(128, 200, 200)   
+    fill(255, 100)      
+    beginShape()    
+    for (x, y, z, iz) in points:
+            if 0 == iz:
                 vertex(x, y, z-10)
-                vertex(x2, y2, z2-10)
-        endShape()
+    endShape()
 
             # while len(segmentos)>2:
 
@@ -73,6 +68,12 @@ def init_grid(grid_size):
             node.update_nbs()
             
 
+    for l in range(1):
+        global points
+        segmentos = [t for t in Node.ver if t[0][3] == l]
+    # print(set(segmentos))  
+    points = order_segments(set(segmentos))
+    print(points)
     
 
 def keyPressed():