摘要:
A volumetric body may be formed of two curved surfaces. The volumetric body may comprise a first surface and a second surface, both being configured to be joined together at a single curved seam to substantially enclose a volume. The first surface may be shaped as an area of a lateral surface of a first cylinder having a first longitudinal axis and a first radius. The second surface may be shaped as an area of a lateral surface of a second cylinder having a second longitudinal axis and a second radius. The seam may be shaped based on an intersection of the first cylinder and the second cylinder when the first longitudinal axis and the second longitudinal axis are noncoplanar, are perpendicular in orthogonal projection, and have a nearest distance that is less than a sum of the first radius and the second radius.