rook-release: Skill for Claude Code

Twisted Column Workflow

Create dramatic twisted architectural forms by lofting through incrementally rotated profiles.

Parameters

Parameter	Description	Default
base_width	Width of rectangular profile	10
base_height	Height of rectangular profile	10
column_height	Total height of column	40
num_profiles	Number of profile curves	5
total_twist	Total rotation in degrees	60
hollow	Create hollow shell	false
wall_thickness	Shell wall thickness (if hollow)	0.3 (as scale factor)

Workflow Steps

Step 1: Create Base Profile

Create the first rectangular profile at the origin.

result = rhino_create(
    type="RECTANGLE",
    origin=[0, 0, 0],
    width=base_width,
    height=base_height,
)
base_profile_id = result["id"]
rhino_geometry(id=base_profile_id)

Note: Rectangle is created on XY plane at Z=0.

Step 2: Copy Profiles to Heights

Copy the base profile to each height level. For 5 profiles over 40 units:

• Heights: 0, 10, 20, 30, 40

# Copy base profile to each height
profile_ids = [base_profile_id]
for i in range(1, num_profiles):
    z_offset = (column_height / (num_profiles - 1)) * i
    copy_result = rhino_copy(
        ids=[base_profile_id],
        offset=[0, 0, z_offset],
    )
    if copy_result.get("copiedCount") != 1:
        raise Exception("profile copy did not return exactly one object")
    profile_ids.append(copy_result["copies"][0]["newId"])

Step 3: Rotate Each Profile

Rotate each profile incrementally around the Z-axis at its center.

# Rotation per level
twist_per_level = total_twist / (num_profiles - 1)

# Rotate each profile (skip first at 0°)
for i, profile_id in enumerate(profile_ids):
    if i == 0:
        continue  # Base profile stays at 0°
    angle = twist_per_level * i
    # Get profile center for rotation
    centroid_result = rhino_measure_centroid(id=profile_id)
    rhino_transform(
        ids=[profile_id],
        operation="rotate",
        angle=angle,
        axis=[0, 0, 1],
        center=centroid_result["centroid"],
    )