Disk Density Tuning of a Maximal Random Packing
Ebeida, Mohamed S.1; Rushdi, Ahmad A.1,2; Awad, Muhammad A.3; Mahmoud, Ahmed H.4; Yan, Dong-Ming5; English, Shawn A.1; Owens, John D.4; Bajaj, Chandrajit L.2; Mitchell, Scott A.1
2016-08-01
发表期刊Computer Graphics Forum
卷号35期号:5页码:259-269
文章类型Article
摘要We introduce an algorithmic framework for tuning the spatial density of disks in a maximal random packing, without changing the sizing function or radii of disks. Starting from any maximal random packing such as a Maximal Poisson-disk Sampling (MPS), we iteratively relocate, inject (add), or eject (remove) disks, using a set of three successively more-aggressive local operations. We may achieve a user-defined density, either more dense or more sparse, almost up to the theoretical structured limits. The tuned samples are conflict-free, retain coverage maximality, and, except in the extremes, retain the blue noise randomness properties of the input. We change the density of the packing one disk at a time, maintaining the minimum disk separation distance and the maximum domain coverage distance required of any maximal packing. These properties are local, and we can handle spatially-varying sizing functions. Using fewer points to satisfy a sizing function improves the efficiency of some applications. We apply the framework to improve the quality of meshes, removing non-obtuse angles; and to more accurately model fiber reinforced polymers for elastic and failure simulations.
关键词Samping
WOS标题词Science & Technology ; Technology
DOI10.1111/cgf.12981
关键词[WOS]UNIDIRECTIONAL COMPOSITE MICROSTRUCTURES ; REPRESENTATIVE VOLUME ELEMENTS ; FIBER-REINFORCED COMPOSITES ; MATRIX COMPOSITES ; DAMAGE ; EFFICIENT ; ALGORITHM ; FAILURE
收录类别SCI ; EI
语种英语
WOS研究方向Computer Science
WOS类目Computer Science, Software Engineering
WOS记录号WOS:000383444500025
引用统计
文献类型期刊论文
条目标识符http://ir.ia.ac.cn/handle/173211/12638
专题模式识别国家重点实验室_多媒体计算与图形学
作者单位1.Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA
2.Univ Texas Austin, Austin, TX 78712 USA
3.Univ Alexandria, Alexandria, Egypt
4.Univ Calif Davis, Davis, CA 95616 USA
5.Chinese Acad Sci, Inst Automat, NLPR, Beijing, Peoples R China
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Ebeida, Mohamed S.,Rushdi, Ahmad A.,Awad, Muhammad A.,et al. Disk Density Tuning of a Maximal Random Packing[J]. Computer Graphics Forum,2016,35(5):259-269.
APA Ebeida, Mohamed S..,Rushdi, Ahmad A..,Awad, Muhammad A..,Mahmoud, Ahmed H..,Yan, Dong-Ming.,...&Mitchell, Scott A..(2016).Disk Density Tuning of a Maximal Random Packing.Computer Graphics Forum,35(5),259-269.
MLA Ebeida, Mohamed S.,et al."Disk Density Tuning of a Maximal Random Packing".Computer Graphics Forum 35.5(2016):259-269.
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