Distance Matrix Format (.matrix)
The distance matrix represents the the dissimilarity of all pairs of
models in the database. For N models, the matrix is a sequence of N
by N floating point numbers in binary format, where the number at
position i*N+j represents the distance between models i and j. A
value of zero indicates that the descriptors are identical, and larger
values indicate greater dissimilarity between the 3D models. All
distance values should be positive and can be arbitrarily large.
Free example software is provided for parsing matrix files.