[Therion] Embedded image does not appear in some layouts

Bill Gee bgee at campercaver.net
Thu Feb 13 14:41:48 CET 2025


Hi Bruce -

Thanks!  I had to fiddle with it a bit, but it works exactly as I want. 
Here is the TeX code I came up with:

=====================
code tex-map
   \savepath{ProfilesPath1}{"GeronimoSpringsCave-Profiles.pdf"}
   \def\maplayout{
     \legendbox{3}{85}{W}{
       \def\txtsize{16}  % Define the default text size
       \legendwidth=20 cm
       \legendtextsectionsize={\size[\txtsize]}
       \legendtextsize={\size[\txtsize]}
       \legendtextheadersize={\size[40]}
       \hsize=\legendwidth
       \the\legendcontent={\size[\txtsize]}
       \the\legendtextsize\ Map generated at \the\time 
\the\currentdate\medskip
       \the\legendtextsize\ Therion version \the\thversion
       }
     \legendbox{0}{0}{SW}{\loadpicture{ProfilesPath1}}
   }
endcode
=====================

You mentioned constant fiddling with the {x}{y}{anchor} parameters as 
the map changes.  That is the reason I save photos and profiles for the 
very end of a cartography project.  I really like Therion, but its 
handling of profiles leaves a LOT to be desired.

I have done several maps where the profiles were treated like 
cross-sections.  In a way they are a cross-section, so that method is 
not entirely wrong.  The main problem with it is when I want to join 
multiple profile scraps.

So far I have drawn only one section of profile for this map.  I will 
have some others.  Finding a way to create a different .pdf file for 
them could be interesting.  I suspect I will have to create thconfig/.th 
files specifically for the profiles, and each different section of 
profile will have to be defined in a "map" directive.

For this map I am already doing that to generate a debug version of the 
map.  A thconfig file can have exactly ONE "select" directive, and that 
does not work when generating a debug map.

===============
Bill Gee

On 2/13/25 01:40, Bruce Mutton wrote:
> Bill
> I think def\maplayout{ redefines completely what is exported, and so any
> map-image statements will silently fail.  Page 76 of the Therion Book
> explains somewhat.
> So if your def\maplayout does not have an equivalent of map-image , then
> each time it is called your map-image will be ignored.
> 
> Here is an example where I have done what I think you are after.
> 
>    code tex-map #this snippet intended for a minimal plan pdf with
> 'map-image' that will later be inserted into an elevation pdf
> 	\savepath{mypath1}{"Laghu-kmlSurface-Dec2022.png"} %#save relative
> path to file to absolute path
> 	\def\maplayout{
> 	\legendbox{73}{120}{NW}{\loadpicture{mypath1}} %#equivalent of
> map-image
>      \ifnortharrow\legendbox{130}{20}{E}{\northarrow}\fi	%#now insert a north
> arrow if appropriate
> 	}	
>   endcode
> 
> A slightly less elegant version of this solution is described here
> https://therion.speleo.sk/wiki/tex?s%5b%5d=tex&s%5b%5d=map#changing_the_look
> _or_layout_of_a_map_output
> 
> I hope one day to be completely free of the constraints imposed of
> 'map-header', and it is possible that the example above is the last missing
> piece of the puzzle for me.  However doing everything by def/maplayout does
> make it complicated when the boundaries of the cave are extended or multiple
> outputs at different scales are required.  There are a lot of {x}{y}{anchor}
> parameters to juggle.
> Bruce
> 
> -----Original Message-----
> From: Therion <therion-bounces at speleo.sk> On Behalf Of Bill Gee
> Sent: Thursday, 13 February 2025 04:49
> To: Therion Mail List <therion at speleo.sk>
> Subject: [Therion] Embedded image does not appear in some layouts
> 
> Here is a puzzle ...  I have set up a thconfig file to create a profiles
> map, then used the "map-image" layout directive to include it in the output
> files.  It works ...  SOMETIMES!
> 
> Take a look at the thconfig file embedded below.  The profiles image appears
> on the files produced from the MainMap and MainMapNoColor layouts.  It does
> not appear on MainMapPrint.
> 
> Why?  Does it have something to do with the TeX code in MainMapPrint?
> 
> Thanks!
> 
> --
> ===============
> Bill Gee
> 
> ...
> code tex-map
>     \def\maplayout{
>       \legendbox{3}{85}{W}{
>         \def\txtsize{16}  % Define the default text size
>         \legendwidth=20 cm
>         \legendtextsectionsize={\size[\txtsize]}
>         \legendtextsize={\size[\txtsize]}
>         \legendtextheadersize={\size[40]}
>         \hsize=\legendwidth
>         \the\legendcontent={\size[\txtsize]}
>         \the\legendtextsize\ Map generated at \the\time
> \the\currentdate\medskip
>         \the\legendtextsize\ Therion version \the\thversion
>         }
>     }
> endcode
> 
> 
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> Therion mailing list
> Therion at speleo.sk
> https://mailman.speleo.sk/listinfo/therion



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