Question:
How does the Sweep along Two Rails block work?
Answer:
The Sweep along Two Rails block sweeps a 2D Profile along a Spine curve, while two Rail curves control the profile's width and orientation as it travels along the spine. This lets the resulting body change shape and size along its length, instead of staying constant like a standard sweep.
- Profile: The 2D profile that will be swept along the spine.
- Spine: The curve that defines the orientation of the section plane at each point along the sweep.
- Rail 1: The first rail curve. The profile is stretched or scaled so that one side of it follows this curve.
- Rail 2: The second rail curve. The profile is stretched or scaled so that the other side of it follows this curve.
- Caps: When checked, closes the swept body with planar caps at the start and end of the spine.
Note: The Spine and both Rail curves should generally run in the same direction and share a similar length and parameterization. Rails that diverge significantly in length or shape can produce twisted or self-intersecting geometry.
The block outputs an Implicit Body representing the swept geometry.