TY - JOUR
T1 - Paneling architectural freeform surfaces
AU - Eigensatz, Michael
AU - Kilian, Martin
AU - Schiftner, Alexander
AU - Mitra, Niloy J.
AU - Pottmann, Helmut
AU - Pauly, Mark
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2010/7/26
Y1 - 2010/7/26
N2 - The emergence of large-scale freeform shapes in architecture poses big challenges to the fabrication of such structures. A key problem is the approximation of the design surface by a union of patches, socalled panels, that can be manufactured with a selected technology at reasonable cost, while meeting the design intent and achieving the desired aesthetic quality of panel layout and surface smoothness. The production of curved panels is mostly based on molds. Since the cost of mold fabrication often dominates the panel cost, there is strong incentive to use the same mold for multiple panels. We cast the major practical requirements for architectural surface paneling, including mold reuse, into a global optimization framework that interleaves discrete and continuous optimization steps to minimize production cost while meeting user-specified quality constraints. The search space for optimization is mainly generated through controlled deviation from the design surface and tolerances on positional and normal continuity between neighboring panels. A novel 6-dimensional metric space allows us to quickly compute approximate inter-panel distances, which dramatically improves the performance of the optimization and enables the handling of complex arrangements with thousands of panels. The practical relevance of our system is demonstrated by paneling solutions for real, cutting-edge architectural freeform design projects. © 2010 ACM.
AB - The emergence of large-scale freeform shapes in architecture poses big challenges to the fabrication of such structures. A key problem is the approximation of the design surface by a union of patches, socalled panels, that can be manufactured with a selected technology at reasonable cost, while meeting the design intent and achieving the desired aesthetic quality of panel layout and surface smoothness. The production of curved panels is mostly based on molds. Since the cost of mold fabrication often dominates the panel cost, there is strong incentive to use the same mold for multiple panels. We cast the major practical requirements for architectural surface paneling, including mold reuse, into a global optimization framework that interleaves discrete and continuous optimization steps to minimize production cost while meeting user-specified quality constraints. The search space for optimization is mainly generated through controlled deviation from the design surface and tolerances on positional and normal continuity between neighboring panels. A novel 6-dimensional metric space allows us to quickly compute approximate inter-panel distances, which dramatically improves the performance of the optimization and enables the handling of complex arrangements with thousands of panels. The practical relevance of our system is demonstrated by paneling solutions for real, cutting-edge architectural freeform design projects. © 2010 ACM.
UR - http://hdl.handle.net/10754/575544
UR - https://dl.acm.org/doi/10.1145/1778765.1778782
UR - http://www.scopus.com/inward/record.url?scp=77956356751&partnerID=8YFLogxK
U2 - 10.1145/1778765.1778782
DO - 10.1145/1778765.1778782
M3 - Article
SN - 0730-0301
VL - 29
SP - 1
JO - ACM Transactions on Graphics
JF - ACM Transactions on Graphics
IS - 4
ER -