Method and apparatus for computing capacity of a region for non-Manhattan routing

摘要

For a router that allows routing in at least one non-Manhattan direction, some embodiments of the invention provide a method of computing a capacity for non-Manhattan routing in a region. The method identifies a polygon about the region, where the polygon has at least one side that is not aligned with either Manhattan direction. It then identifies a set of potential obstacles within the polygon. The method then calculates the capacity of the region for non-Manhattan routing, based on the identified set of potential obstacles.