ジグザグ折りを並べて立体化 – 折り紙構造

- `segment_length`: float – ジグザグ1区間の長さ
- `segment_count`: int – ジグザグの折れ数（1列あたり）
- `row_count`: int – ジグザグ列の数（X方向の繰り返し数）
- `angle`: float – ジグザグの折れ角度（度数）
- `x_spacing`: float – 各列のX方向の間隔
- `z_drop`: float – 交互にZ方向へ下げる量（立体感の調整）

- `results`: list of `Brep` – 折り構造を構成する四角形のサーフェイス群

import Rhino.Geometry as rg
import math

results = []

zigzag_base = []
pt = rg.Point3d(0, 0, 0)
dir_angle = math.radians(angle)
direction = 1

for i in range(segment_count + 1):
    zigzag_base.append(pt)
    angle = direction * dir_angle
    dx = math.sin(angle) * segment_length
    dy = math.cos(angle) * segment_length
    pt = rg.Point3d(pt.X + dx, pt.Y + dy, 0)
    direction *= -1

zigzag_rows = []
for j in range(row_count):
    dx = j * x_spacing
    dz = -z_drop if j % 2 == 1 else 0

    row = [rg.Point3d(p.X + dx, p.Y, p.Z + dz) for p in zigzag_base]
    zigzag_rows.append(row)

for j in range(row_count - 1):
    row_a = zigzag_rows[j]
    row_b = zigzag_rows[j + 1]

    for i in range(segment_count):
        p0 = row_a[i]
        p1 = row_a[i + 1]
        p2 = row_b[i + 1]
        p3 = row_b[i]

        face = rg.Brep.CreateFromCornerPoints(p0, p1, p2, p3, 0.001)
        results.append(face)