Visibility Between Segments (Geometric Visibility Problems)
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Description
Given a set $S$ of $n$ horizontal line segments in the plane and two particular horizontal segments $s_1$ and $s_2$, determine whether there are points on $s_1$ and $s_2$ that can see each other, that is, such that the open segment between the points does not intersect any segment in $S$.
Related Problems
Related: Visibility From Infinity, Visible Triangle
Parameters
$n$: number of horizontal line segments
Table of Algorithms
Currently no algorithms in our database for the given problem.
Reductions FROM Problem
| Problem | Implication | Year | Citation | Reduction |
|---|---|---|---|---|
| GeomBase | if: to-time $N^{2-\epsilon}$ for some $\epsilon > {0}$ then: from-time: $N^{2-\epsilon'}$ for some $\epsilon' > {0}$ |
1995 | https://doi.org/10.1016/0925-7721(95)00022-2 | link |