# Linear approximation of simple objects

Published

Journal Article

Let P = {P1, P2, . . . , Pm} be a set of m convex polygons in the plane with a total number of n vertices, and for 1 ≤ i ≤ m, let wi ∈ℝ+ be a weight associated with Pi. The weighted distance between a line l and a polygon Pi is given by d(l, Pi) = minp∈Pi,q∈l d(p, q).wi, where d(p, q) is the Euclidean distance between p and q. We want to compute a line l that minimizes the maximum distance between l and the polygons of P. We present an O(nα(n) log3 n)-time algorithm to compute such a line. We also give an O(n2+ε)-time algorithm, where ε is an arbitrarily small positive constant, to solve the three dimensional version of this problem; here, P is a set of convex polytopes in ℝ3, and we want to compute a plane h that minimizes the maximum weighted distance between h and the polytopes. © 1997 Published by Elsevier Science B.V.

### Full Text

### Duke Authors

### Cited Authors

- Varadarajan, KR; Agarwal, PK

### Published Date

- April 28, 1997

### Published In

### Volume / Issue

- 62 / 2

### Start / End Page

- 89 - 94

### International Standard Serial Number (ISSN)

- 0020-0190

### Digital Object Identifier (DOI)

- 10.1016/s0020-0190(97)00049-5

### Citation Source

- Scopus