public interface IterationCode
extends EuclideanSpace

Iteration code encodes a bitmask as a set of intervals along dimension 0. It is a list of numbers (see getItcode()) structured as follows:

 
 [o0]             a general X offset
                  (to ensure that no negative X coordinates occur.)
 [p1, ..., pn]    the starting position in dimensions 1, ..., n

 Then follows a arbitrary long sequence of tuples
 [p0min, p0max] where p0min >= 0
  or
 [-dim, p1, ..., p(dim)] where -dim < 0.
 Based on the sign of first element it can be decided which it is.
 In the second case, the first element determines the length of the tuple.

 [p0min, p0max] means that the positions from [p0min + o0, p1, ..., pn] to
 [p0max, p1, ..., pn] are contained in the bitmask, where p1, ..., pn are the
 current starting position in dimensions 1, ..., n.

 [-dim, p1, ..., p(dim)] modifies dimensions p1, ..., p(dim) of the current
 starting position.