source: branches/stable/SECEDIT/structure_format_versions.txt

Last change on this file was 4803, checked in by westram, 17 years ago
  • rewrote SECEDIT
  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 872 bytes
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2 ----------------------------------------------------------
3     Some notes on different structure format versions:     
4 ----------------------------------------------------------
5
6* Since version 3 a VERSION entry is present
7
8* Root loop angle:
9  * version 1 had none
10  * version 2 had one and it pointed to the first segment
11  * version 3 has none (angle of root-loop is always handled as absolute angle)
12
13* order of SEGMENTs and STRANDs in LOOPS:
14  * normal loops always start and end with a SEGMENT
15  * root-loop:
16    * version 1+2 ended with a strand
17    * version 3 starts with a strand (the fixpoint strand)
18
19* angles
20  * version 1 only DELTA
21  * version 2 had DELTA and DELTA_IN (loop->strand-angle (rootside) and reverse strand<-loop-angle (outside))
22  * version 3 has REL entries in STRAND _and_ LOOP. These angles are relative to angle of father element.
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