284

s284/node.py

@@ -0,0 +1,68 @@
+class Node():
+    nodes = []
+    grid = dict()
+    ver = set()
+
+    def __init__(self, x, y, z):
+        self.ix = x
+        self.iy = y
+        self.iz = z
+        self.x = Node.border + Node.spacing / 2 + x * Node.spacing - width / 2
+        self.y = Node.border + Node.spacing / 2 + y * Node.spacing - width / 2
+        self.z = Node.border + Node.spacing / 2 + z * Node.spacing - width / 2
+        self.size_ = 1
+        self.cor = None
+        self.nb = {0 : False, # |* left 
+                   1 : False, # *| right
+                   2 : False, # - top
+                   3 : False, # _ bottom
+                   4 : False,
+                   5 : False,
+                  }
+
+        self.borders = []
+        
+    def plot(self):
+        """ draws node """
+        if self.cor:
+            noFill() #stroke(0)
+            stroke(self.cor)
+            with pushMatrix():
+                translate(0, 0, self.z)
+                #rect(0, 0, Node.spacing * self.size_, Node.spacing * self.size_)
+                self.draw_borders()
+                
+    def draw_borders(self):
+        if self.borders:
+            for x1, y1, x2, y2 in self.borders:
+                line(x1, y1, x2, y2)
+                
+                                              
+    def update_borders(self):
+        b = self.borders
+        w = h = Node.spacing * self.size_
+        tlX, tlY = self.x - w/2, self.y - h/2
+        trX, trY = self.x + w/2, self.y - h/2
+        blX, blY = self.x - w/2, self.y + h/2
+        brX, brY = self.x + w/2, self.y + h/2
+        if not self.nb[0]: b.append((tlX, tlY, blX, blY))
+        if not self.nb[1]: b.append((trX, trY, brX, brY))
+        if not self.nb[2]: b.append((tlX, tlY, trX, trY))
+        if not self.nb[3]: b.append((blX, blY, brX, brY))
+        
+    def update_nbs(self):
+        nb0 = Node.grid.get((self.ix-1, self.iy, self.iz))
+        self.nb[0] = True if nb0 and nb0.cor else False
+        nb1 = Node.grid.get((self.ix+1, self.iy, self.iz))
+        self.nb[1] = True if nb1 and nb1.cor else False
+        nb2 = Node.grid.get((self.ix, self.iy-1, self.iz))
+        self.nb[2] = True if nb2 and nb2.cor else False
+        nb3 = Node.grid.get((self.ix, self.iy+1, self.iz))
+        self.nb[3] = True if nb3 and nb3.cor else False
+        nb4 = Node.grid.get((self.ix, self.iy, self.iz-1))
+        self.nb[4] = True if nb4 and nb4.cor else False
+        nb5 = Node.grid.get((self.ix, self.iy, self.iz+1))
+        self.nb[5] = True if nb5 and nb5.cor else False
+        
+        self.update_borders()
+        

s284/s284.pyde

@@ -0,0 +1,93 @@
+# Alexandre B A Villares - https://abav.lugaralgum.com/sketch-a-day
+SKETCH_NAME = "s284"  # 2018109
+OUTPUT = ".gif"
+GRID_SIZE = 6
+
+add_library('peasycam')
+from random import seed
+from random import choice
+from random import randint
+
+from node import Node
+
+def setup():
+    global ang
+    ang = 0
+    size(500, 500, P3D)
+    colorMode(HSB)
+    strokeWeight(2)
+    cam = PeasyCam(this, 100)
+    cam.setMinimumDistance(750)
+    cam.setMaximumDistance(750)
+    random_seed(101)
+    init_grid(GRID_SIZE)
+
+            
+def draw():
+    global ang
+    background(0)
+    rotateY(ang)
+    for node in Node.nodes:
+        node.plot()
+
+    for l in range(GRID_SIZE):         
+        beginShape()    
+        for x, y, z, iz in Node.ver:
+            if l == iz:
+                vertex(x, y, z+1)
+        endShape()
+    
+    if ang <= TWO_PI:
+        #saveFrame("###.png")
+        ang += 0.02
+                                                
+def init_grid(grid_size):
+    Node.border = 10
+    Node.spacing = (width - Node.border * 2) / grid_size
+    Node.nodes = []
+    Node.ver = []
+    for x in range(grid_size):
+        for y in range(grid_size):
+            for z in range(grid_size):
+                new_node = Node(x, y, z)
+                Node.nodes.append(new_node)
+                Node.grid[x, y, z] = new_node
+                if randint(1, 10) > 5:
+                    new_node.cor = color(z * 28, 255, 255)
+                else:
+                    new_node.cor = None
+
+    for node in Node.nodes:
+        node.update_nbs()
+        
+    for node in Node.nodes:
+        for x1, y1, x2, y2 in node.borders:
+                Node.ver.append((x1, y1, node.z, node.iz))
+                Node.ver.append((x2, y2, node.z, node.iz))
+
+
+def keyPressed():
+    if key == "n":
+        init_grid(GRID_SIZE)
+    if key == "s": saveFrame("###.png")
+    
+    
+def random_seed(s=None):
+    global rnd_seed
+    if s:
+        rnd_seed = s
+        seed(rnd_seed)
+        randomSeed(rnd_seed)    
+    else:
+        seed(rnd_seed)
+        randomSeed(rnd_seed)
+    
+# print text to add to the project's README.md             
+def settings():
+    println(
+"""
+![{0}]({0}/{0}{2})
+
+{1}: [code](https://github.com/villares/sketch-a-day/tree/master/{0}) [[Py.Processing](https://villares.github.io/como-instalar-o-processing-modo-python/index-EN)]
+""".format(SKETCH_NAME, SKETCH_NAME[1:], OUTPUT)
+    )