[Therion] Source and Select

[Andrew Atkinson]

Your suggested solution, is what I do, for 3d, and it works, but I have 
not used lists yet. However, it would be nice to be able to select a map 
and only get a centreline with this would be good, but I suspect too 
much work for it to be worth while. (plus lots of decisions about what 
exactly would appear in the output

Andrew

On 16/11/10 09:08, Bruce wrote:
> My reading of the Therion Book suggests to me;
>
> - that ‘source’ specifies the files that Therion should read and process
> before deciding what to export. The source files should contain or
> reference surveys and or a surface.
>
> - that ‘select’ chooses which survey(s) and or map(s) from the above
> files to export. If there is no ‘select’ statement then ‘all’ are exported.
>
> My interpretation #1 is that this should allow all the surveys of a
> large (or modest) system of cave passages to be referenced by way of
> ‘source’ so that all the survey loop and scrap join distortions can be
> processed BEFORE Therion decides what to export. This is what seems to
> occur. So far, so good.
>
> My interpretation #2 is that when a map or maps for any particular
> projection is ‘selected’ then ONLY the data that relates to those maps
> should be exported. This is what seems to happen for Map outputs (pdf
> and ?kml) and Atlas outputs.
>
> I have some difficulty and confusion with outputs that don’t have a
> projection, such as the lists, 3d outputs and database. What seems to
> happen is that regardless of the ‘selected’ maps, all of the ‘sourced’
> data is exported to this type of output.
>
> What I would like is that only the data related to the ‘selected’ maps
> are exported. This way all subset outputs can be consistent (same loop
> closure distortions applied), and separately exported.
>
> In writing this out I suspect I may have realised the answer to my
> question (but not yet tested it). Perhaps what I need to do is ‘select’
> survey(s) that encompass the same part of the cave as the maps?
>
> Any insights or clarifications gratefully received.
>
> Bruce
>
>
>
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