sketch-a-day/s286/node.py

45 wiersze
1.4 KiB
Python

from random import choice
class Node():
nodes = []
def __init__(self, x, y):
self.x = Node.border + Node.spacing / 2 + x * Node.spacing - width / 2
self.y = Node.border + Node.spacing / 2 + y * Node.spacing - height / 2
self.size_ = 1
self.rot0 = choice((0, HALF_PI)) #, PI, PI + HALF_PI))
self.rot1 = choice((HALF_PI , PI)) #, PI + HALF_PI))
def plot(self, ang):
""" draws node """
with pushMatrix():
translate(self.x, self.y)
d = abs(self.rot0 + ang - self.rot1)
if d >= 0.30:
rotate(self.rot0 + ang)
else:
self.rot0 = self.rot1 - ang
rotate(self.rot1)
noFill() #stroke(0)
stroke(0, 0, 200, 50)
siz = Node.spacing * self.size_
rect(0, 0, siz, siz)
# line(-siz/2, -siz/2, siz/2, siz/2)
stroke(0, 100, 100)
arc(-siz/2, -siz/2, siz, siz, 0, HALF_PI)
arc(siz/2, siz/2, siz, siz,PI, PI+HALF_PI)
@classmethod
def init_grid(cls, grid_size, border):
cls.border = border
cls.spacing = (width - cls.border * 2) / grid_size
cls.nodes = []
for x in range(grid_size):
for y in range(grid_size):
new_node = cls(x, y)
cls.nodes.append(new_node)