Fast swept volume approximation of complex polyhedral models

Young J. Kim, Gokul Varadhan, Ming C. Lin, Dinesh Manocha

Research output: Contribution to conferencePaperpeer-review

47 Scopus citations

Abstract

We present an efficient algorithm to approximate the swept volume (SV) of a complex polyhedron along a given trajectory. Given the boundary description of the polyhedron and a path specified as a parametric curve, our algorithm enumerates a superset of the boundary surfaces of SV. It consists of ruled and developable surface primitives, and the SV corresponds to the outer boundary of their arrangement. We approximate this boundary by using a five-stage pipeline. This includes computing a bounded-error approximation of each surface primitive, computing unsigned distance fields on a uniform grid, classifying all grid points using fast marching front propagation, iso-surface reconstruction, and topological refinement. We also present a novel and fast algorithm for computing the signed distance of surface primitives as well as a number of techniques based on surface culling, fast marching level-set methods and rasterization hardware to improve the performance of the overall algorithm. We analyze different sources of error in our approximation algorithm and highlight its performance on complex models composed of thousands of polygons. In practice, it is able to compute a bounded-error approximation in tens of seconds for models composed of thousands of polygons sweeping along a complex trajectory.

Original languageEnglish
Pages11-22
Number of pages12
DOIs
StatePublished - 2003
EventEighth ACM Symposium on Solid Modeling and Applications - Seattle, WA, United States
Duration: 16 Jun 200320 Jun 2003

Conference

ConferenceEighth ACM Symposium on Solid Modeling and Applications
Country/TerritoryUnited States
CitySeattle, WA
Period16/06/0320/06/03

Keywords

  • Distance Fields
  • Implicit Modeling
  • Swept Volume

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