TY - CONF AB - Arrangements of curves in the plane are of fundamental significance in many problems of computational and combinatorial geometry (e.g. motion planning, algebraic cell decomposition, etc.). In this paper we study various topological and combinatorial properties of such arrangements under some mild assumptions on the shape of the curves, and develop basic tools for the construction, manipulation, and analysis of these arrangements. Our main results include a generalization of the zone theorem of [EOS], [CGL] to arrangements of curves (in which we show that the combinatorial complexity of the zone of a curve is nearly linear in the number of curves), and an application of (some weaker variant of) that theorem to obtain a nearly quadratic incremental algorithm for the construction of such arrangements. AU - Edelsbrunner, Herbert AU - Guibas, Leonidas AU - Pach, János AU - Pollack, Richard AU - Seidel, Raimund AU - Sharir, Micha ID - 4097 KW - line segment KW - computational geometry KW - Jordan curve KW - cell decomposition KW - vertical tangency SN - 978-3-540-19488-0 T2 - 15th International Colloquium on Automata, Languages and Programming TI - Arrangements of curves in the plane - topology, combinatorics, and algorithms VL - 317 ER -