[Therion] Survey of a levelled maze

[Bruce]

Me too!  I am very interested in resolving these issues.

> But when the Reads2M, Reads3M and Reads4M maps are offset the previews
are not shown.
Is this something to do with 'map level' as described in Therion Book? - I
have never been able to decipher or resolve however.


> ...and to get colour by map to work I need to select ReadsM -map-level 1
but then the previews are not shown ... how do I get the colours and the
previews, help! Even better would be to get the previews the
same colour as the maps...

Both of these would be nice to resolve.
Similarly perhaps, I have never ever managed to get;

colour preview-above <colour> 

to work.  I have a statement to make my preview above's magenta in my
standard layout since 2010 so I will notice if it starts working with a new
release. (colour preview-below works fine!)  If anyone has made colour
preview-above work, please let me know - maybe I have a silly mistake :)


> As a note; it turns out that [0 25 m] is in North/south and East/West
direction not X Y of the page, which I can overcome with a bit of maths,
but as this seems to be more of a page laying tool I would expect the
latter.


I sometimes use a variety (OK, two) map rotations for the same map
definitions, and so have noticed this as well.  However as my offsets are
often positioned to avoid neighbouring passages, it makes more sense for me
to offset using cs coordinates rather than page coordinates (notwithstanding
issues with label orientations and clashes).  This way the same map
definition and offset can be used regardless of the rotate specification
used for a particular export.
The maths can be frustrating though, so ability to specify page or cs
coordinates would be a nice touch.

Bruce