mpt_buildAdjacency

MPT_BUILDADJACENCY Builds adjacency information

 adjList = mpt_buildAdjacency(Pi)

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 DESCRIPTION
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 For a collection of non-overlaping polytopes Pi generates adjacency list.
 Fast and dirty implementation.

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 INPUT
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 Pi                 - polytope array (must be non-overlapping!)
 Options.abs_tol    - absolute tolerance (default is 1e-9)
 Options.remove_inf - if 1, forced cleaning of adjList data from numerical 
                      inaccuracies, one can remove columns in neighbor list 
                      that consist only of -Inf or 0. (default 0)
                      [this can always be performed if Pi is convex]


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 OUTPUT
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 adjList          - list of adjacent regions, where adjList{i}(j,:) is
                    the list of neighbor regions indices at facet j of
                    region i. "-Inf" denotes that the facet is at the
                    boundary of feasibility