[Therion] Map-connection issue - Going to four levels - Offset tests SAMD-ITF-IS example

[Bruce Mutton]

I managed to squeeze five levels of maps out of my example, going to 4
levels of offset (offset of offset of offset of offset).

 

All of the offsets are correctly made, relative to their parent maps.

However the line created by point map-connection is only correctly
originating from its parent map at the most deeply nested level of offset
and at the 1st level offset.  At all other offset levels, the map-connection
line reverts to originating from the top-level map, and not from its direct
parent.

 

In the marked up diagram below:

*	#1, #2 indicates the offset level
*	The squares indicate the scope of the various maps subordinate to
the main map
*	The extreme left (green) and right (yellow- almost) map-connection
lines correctly originate from their parent maps
*	The map-connection lines highlighted pink and blue originate from
the main map, and not from their parent map, even though the offset is
correctly made from the parent.  The recti-linear lines I have sketched show
where I expect the map-connection lines to be drawn.

 

 

 

 

For comparison https://therion.speleo.sk/wiki/mapconnectors?s[]=connection
<https://therion.speleo.sk/wiki/mapconnectors?s%5b%5d=connection>  describes
offsets 2 levels deep, and as I have found and on that wiki page, 2 levels
deep behaves as it should.  It is only once we get to 3 levels of offset
that the behaviour deviates and becomes problematic.

 

So the pattern is clearer, and I am becoming more confident it is a bug. 

Why a bug?  

*	Because at 2 levels of offset the effective behaviour is that each
map-connection line originates from its direct parent.
*	And at 3 and 4 levels of offset, the effective behaviour is that the
only the most deeply nested and the 1st level of offset map-connections
originate from their direct parent.  The intermediary level offset
map-connections originate from the main map location and not from their
direct parent.

 

So maybe it is a problem with the definition of point map-connection, or the
way that the origin and destination locations are parsed to the
map-connection lines?

 

Bruce

 

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