[Therion] Map offset: just specify offset in complex dataset (proposes new "offset" thconfig compiler command)

[Benedikt Hallinger]

Hi,
the more important question for me is, how (if?) i can select an entire survey structure(containing scraps, maps etc), and specify that i want a specific map to be offset. Your main conclusion was correct, i want to print all maps, without explicitely specifying them, and at the same time offset some maps thereof.
I want to „select all“, „offset 1234-map“ and optionally completely hide „456-map“ (or alternatively its survey)

> Am 18.12.2021 um 15:38 schrieb Stacho Mudrak <lists at group-s.sk>:
> 
> 
> Hi Beni,
> 
> first, I am sorry for the late answer. 
> 
> Do I understand you correctly, that you want to mix "select survey" and "unselect/offset particular map"? To be able to export all maps from a given survey without the need of specification of the master map for this survey. Am I right? 
> 
> Select survey and unselect survey seems to work for me. But unselect map is missing/not working, neither combination of map/survey select/unselect. Normally - if map selection for a given projection is available, it is used. If not, survey selection is used.
> 
> I think, unselecting/offsetting maps from survey selection is feasible without any negative side effects. I am just not sure, how much work would it be to implement it.
> 
> S.
> 
> 
> 
>> On Thu, 9 Dec 2021 at 10:37, Benedikt Hallinger <beni at hallinger.org> wrote:
>> Hello,
>> I currently experiment with creating a nice overview map of a fairly 
>> complex part of the Hirlatz cave. The dataset spans about 8km in passage 
>> lengths in variuous levels with lots of over-/underlaying passages.
>> The data is organised in surveys, where each survey defines at least a 
>> "Hauptmap" wich usually includes all the submaps the main map is 
>> composed of. The main intend of the "Hauptmap" is to nicely render the 
>> survey alone.
>> 
>> Now I want to create an overview map and using the select statement I 
>> can easily instruct therion to suck in and render all the maps of the 
>> entire region. Offsets are stripped this way, but therion does a very 
>> nice job in sorting te maps according to the altitude, which eases my 
>> brain very much, since i don't need to wrap my head around sorting 54 
>> maps by hand. Therion does a splendid job with this already.
>> 
>> However this produces one problem for me: I cannot render map offsets 
>> easily anymore.
>> So what I had to do is to select the entire region using "select 
>> Wandaugenlabyrinth.Hirlatzhoehle" and render that.
>> This will print the processes maps into the therion.log file.
>>  From there I have picket it up to create a new "map" structure (`grep ^M 
>> therion.og |sort -r | awk '{print $3}'`).
>> This i added to the thconfig file and selected that instead. There it is 
>> now easy to define offets again.
>> 
>> BUT: This introduces another, long term problem:
>> When sometimes in the future someone adds a new survey to this region, 
>> he needs to remember to merge its maps also into the overview map 
>> definition (at the correct position because of altitude!).
>> 
>> 
>> 
>> Thus, it would be cool if we had some kind of "offset" thconfig command 
>> alongside the select one.
>> This would allow me to read in the entire regions maps, and just specify 
>> offsets for the offset ones; something like this:
>> 
>> ----- thconfig -----
>> source ../../therion/Hirlatzhoehle.th
>> select Wandaugenlabyrinth.Hirlatzhoehle   # read in all defined maps of 
>> the Region
>> 
>> offset 173-Anschluss-177 at 173.Wandaugenlabyrinth.Hirlatzhoehle [20 15 m] 
>> below
>> offset 177-Hauptplan at 177.Wandaugenlabyrinth.Hirlatzhoehle     [-30 -20 
>> m] above
>> --------------------
>> 
>> Expected result would be all the maps read and printed at their altitude 
>> level, but the two maps offset as already known from the "map" command.
>> If someone adds, lets say, 
>> 200-Hauptplan at 200.Wandaugenlabyrinth.Hirlatzhoehle and recompiles the 
>> file, the new survey would be included *without specifying it 
>> explicitely*.
>> 
>> 
>> Is such a command possible?
>> I know it's not such a big deal with smaller caves, but in my dataset 
>> this would save a tremendous ammount of time down the road when I will 
>> make the atlas of Hirlatz regions (not to mention a big overview map).
>> 
>> 
>> ps. and probably relatet: When I give "select 
>> Wandaugenlabyrinth.Hirlatzhoehle" and then "unselect 
>> 177-Hauptplan at 177.Wandaugenlabyrinth.Hirlatzhoehle", 177 survey is still 
>> printed to the map. I would had expected that the scraps of the map 
>> would be hidden from output.
>> 
>> 
>> Kind regards,
>> Beni
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