### Sesc Av. Paulista
## Grupo de estudos em Python
# `hackmd.io/@sesc-av-paulista/estudos-em-python-8-maio`

- Hexágonos
- [site redblobgames.com/grids/hexagons](https://www.redblobgames.com/grids/hexagons/)

- Azulejos pentagonais "do Cairo"
- https://blogs.ams.org/visualinsight/2016/01/15/cairo-tiling/
- [na Wikipedia](https://en.m.wikipedia.org/wiki/Cairo_pentagonal_tiling)

- Quadrados e triângulos

### Pentágono dos azulejos do Cairo


### Primeira aproximação



def setup():
    size(450, 450)
    base = 75
    no_fill()
    w = base * 3
    h = base * 1.5
    for i in range(3):
        for j in range(5):
            if j % 2 == 0:
                x = i * w
            else:
                x = i * w + w / 2
            y = j * h
            grupo(x, y, base)    
    
def grupo(x, y, base):
    desc = base * 1.5
    pentagono(x, y, base, rot=False)
    pentagono(x, y, base, rot=False, flip=True)
    pentagono(x + desc, y, base, rot=True)
    pentagono(x - desc, y, base, rot=True, flip=True)
    
def pentagono(xb, yb, lado_base, rot=False, flip=False):
    vs = [
    (-2,  0),
    (-3, -3),
    ( 0, -4),
    ( 3, -3),
    ( 2,  0)
    ]
    u = lado_base / 4
    with begin_closed_shape():
        for i, j in vs:
            if flip:
                j = -j
            if rot:
               i, j = j, -i
            x = xb + i * u
            y = yb + j * u
            vertex(x, y)
    

### Colorido


def grupo(x, y, base):
    desc = base * 1.5
    fill(200, 0, 0)
    pentagono(x, y, base, rot=False)
    fill(255, 150, 150)
    pentagono(x, y, base, rot=False, flip=True)
    fill(0, 0, 200)
    pentagono(x + desc, y, base, rot=True)
    fill(150, 150, 255)
    pentagono(x - desc, y, base, rot=True, flip=True)

    

### Animado


https://github.com/villares/sketch-a-day/blob/main/2025/sketch_2025_05_08/sketch_2025_05_08.py