LANS Informal Seminar
"Optimal Filling of Shapes"
DATE: March 14, 2012
TIME: 15:00:00 - 16:00:00 Description:
SPEAKER: Carolyn Phillips, Aneesur Rahman Postdoctoral Fellow, CI
LOCATION: Building 240, 1404-1405, Argonne National Laboratory
We present filling as a new type of spatial subdivision problem that is related to covering and packing. Filling addresses the optimal placement of overlapping objects lying entirely inside an arbitrary shape so as to cover the most interior volume. In $n$-dimensional space, if the objects are polydisperse $n$-balls, we show that solutions correspond to sets of maximal $n$-balls and the solutions space can reduced to the medial axis of a shape. We consider the structure of the solution space in two-dimensions. For polygons, we provide a detailed description of a heuristic and genetic algorithm for finding solutions of maximal discs. We also consider the properties of ideal distributions of $N$ discs in polygons as $N$ goes to infinity.
TIME: 15:00:00 - 16:00:00
Please send questions or suggestions to Debojyoti Ghosh: ghosh at mcs dot anl dot gov.