mc_fence.py

from PIL import Image
import math

img = Image.open(r"C:\Users\mike_000\Desktop\planks_oak.png")
board_widths = [16, 16, 16, 16]

resize_factor = img.size[0] / 16

fence_side = img.crop([0, 0, img.size[0], img.size[1]])
fence_top = img.crop([0, 0, img.size[0], img.size[1]])
gate_side = img.crop([0, 0, img.size[0], img.size[1]])
gate_top = img.crop([0, 0, img.size[0], img.size[1]])

# img = img.transpose(Image.ROTATE_270)

boards = []

top = 0
bottom = 0

for width in board_widths:
    top = bottom
    bottom += width

    boards.append(img.crop([0, top, img.size[0], bottom]))


def resize(img, size, edge=4):
    resized = Image.new('RGBA', size)



    # Split apart elements of plank
    center = img.crop([edge, edge, img.size[0] - edge, img.size[1] - edge])

    top_left = img.crop([0, 0, edge, edge])
    top_edge = img.crop([edge, 0, img.size[0] - edge, edge])
    top_right = img.crop([img.size[0] - edge, 0, img.size[0], edge])
    right_edge = img.crop([img.size[0] - edge, edge, img.size[0], img.size[1] - edge])
    bottom_right = img.crop([img.size[0] - edge, img.size[1] - edge, img.size[0], img.size[1]])
    bottom_edge = img.crop([edge, img.size[1] - edge, img.size[0] - edge, img.size[1]])
    bottom_left = img.crop([0, img.size[1] - edge, edge, img.size[1]])
    left_edge = img.crop([0, edge, edge, img.size[1] - edge])

    # Stretch horizontal grain
    top_edge = top_edge.resize([size[0] - (edge * 2), top_edge.size[1]])
    center = center.resize([size[0] - (edge * 2), center.size[1]])
    bottom_edge = bottom_edge.resize([size[0] - (edge * 2), bottom_edge.size[1]])

    # Repeat vertical grain
    temp_height = math.ceil(size[1] - (edge * 2) / img.size[1] - (edge * 2))

    left_edge_large = Image.new('RGBA', (edge, temp_height))
    center_large = Image.new('RGBA', (center.size[0], temp_height))
    right_edge_large = Image.new('RGBA', (edge, temp_height))

    for repeat in range(temp_height):

        left_edge_large.paste(left_edge, (0, left_edge.size[1] * repeat, edge, left_edge.size[1] * (repeat + 1)))
        center_large.paste(center, (0, center.size[1] * repeat, center.size[0], center.size[1] * (repeat + 1)))
        right_edge_large.paste(right_edge, (0, right_edge.size[1] * repeat, edge, right_edge.size[1] * (repeat + 1)))

    left_edge = left_edge_large.crop([0, 0, left_edge.size[0], size[1] - (edge * 2)])
    center = center_large.crop([0, 0, center.size[0], size[1] - (edge * 2)])
    right_edge = right_edge_large.crop([0, 0, right_edge.size[0], size[1] - (edge * 2)])


    # Put pieces back together
    resized.paste(center, (edge, edge, resized.size[0] - edge, resized.size[1] - edge))

    resized.paste(top_left, (0, 0, edge, edge))
    resized.paste(top_edge, (edge, 0, resized.size[0] - edge, edge))
    resized.paste(top_right, (resized.size[0] - edge, 0, resized.size[0], edge))
    resized.paste(right_edge, (resized.size[0] - edge, edge, resized.size[0], resized.size[1] - edge))
    resized.paste(bottom_right, (resized.size[0] - edge, resized.size[1] - edge, resized.size[0], resized.size[1]))
    resized.paste(bottom_edge, (edge, resized.size[1] - edge, resized.size[0] - edge, resized.size[1]))
    resized.paste(bottom_left, (0, resized.size[1] - edge, edge, resized.size[1]))
    resized.paste(left_edge, (0, edge, edge, resized.size[1] - edge))

    return resized


def scale(coordinates):
    scaled = []
    for element in coordinates:
        scaled.append(int(element * resize_factor))
    return scaled

# Top Beam
fence_side.paste(resize(boards[1], scale([16, 3])), scale([0, 1, 16, 4]))

# Bottom Beam
fence_side.paste(resize(boards[2], scale([16, 3])), scale([0, 7, 16, 10]))

# Center post
center_post = resize(boards[0], scale([16, 4]))
center_post = center_post.transpose(Image.ROTATE_90)
center_post = center_post.transpose(Image.FLIP_LEFT_RIGHT)

fence_side.paste(center_post, scale([6, 0, 10, 16]))

fence_side.show()

fence_top.paste(resize(boards[2], scale([16, 2])), scale([0, 7, 16, 9]))

vertical_post = resize(boards[1], scale([16, 2])).transpose(Image.ROTATE_270)
fence_top.paste(vertical_post, scale([7, 0, 9, 16]))
fence_top.paste(resize(boards[3], scale([4, 4]), 1), scale([6, 6, 10, 10]))

fence_top.show()