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On the “piano movers'” problem I. The case of a two‐dimensional rigid polygonal body moving amidst polygonal barriers

Schwartz, Jacob T., Sharir, Micha·1983·Communications on Pure and Applied Mathematics

Abstract

We present an algorithm that solves a two‐dimensional case of the following problem which arises in robotics: Given a body B, and a region bounded by a collection of “walls”, either find a continuous motion connecting two given positions and orientations of B during which B avoids collision with the walls, or else establish that no such motion exists. The algorithm is polynomial in the number of walls (O(n5) if n is the number of walls), but for typical wall configurations can run more efficiently. It is somewhat related to a technique outlined by Reif.

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Metadata

Authors
Schwartz, J. T., & Sharir, M.
Venue
Communications on Pure and Applied Mathematics
Publisher
Wiley
Published
1983-05
Volume
36
Issue
3
Pages
345-398
ISSN
  • 0010-3640 (ISSN-L)
  • 1097-0312
OpenAlex
W2001804342
Cited by
454
References
0
FWCI
22.93
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: On the “piano movers'” problem I. The case of a two‐dimensional rigid polygonal body moving amidst polygonal barriers. https://app.cochat.ai/papers/10.1002/cpa.3160360305
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Schwartz, J. T., & Sharir, M. (1983). On the “piano movers'” problem I. The case of a two‐dimensional rigid polygonal body moving amidst polygonal barriers. Communications on Pure and Applied Mathematics. https://doi.org/10.1002/cpa.3160360305

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