J3/15-153 To: J3 From: Tom Clune Subject: Correct text for definition of ordering of segments Date: 2015 February 25 References: 15-007 1. Discussion The text defining user-defined ordering between segments in 8.5.5 is imprecise, awkwardly worded and inadequate for determining transitive ordering. 2. Edits to 15-007 [194:1] Change "to precede" with "to immediately precede" [194:5] Append new sentence: "Segment P_i on image P precedes segment Q_j on image Q if and only if there exists a sequence of segments P_i, S^1_{m_1}, S^2_{m_2}, ... S^n_{m_n}, Q_j such that - S^k_{m_k} is a segment on image S^k - P_i immediately precedes S^1_{m_1} - S^k_{m_k} immediately precedes S^{k+1}_{m_{k+1}} for k = 1, 2, ..., n-1 - S^n_{m_n} immediately precedes Q_j "