14. 11. 2017 v 15:07, Bill Gee via Therion <therion@speleo.sk>:

Hello everyone -

I have managed to get what I want, though I do not completely understand why 
it works.  Thanks to Bruce and Torsten for valuable pointers.

The attached file is my thconfig with modifications for the large legend.  The 
layout for "mainmapprint" contains the MetaPost and TeX code.

In truth, I think the main reason I am getting the large legend now is because 
I changed the scale to 1:800.  When I looked at the relation between the 
desired size of printout and the bounding box of the cave, I get a ratio in 
the range of 1:800.  It is actually 1:851 for north-south and 1:705 for east-
west, so 1:800 seems a reasonable middle ground.

I tried various "base-scale" settings but could not see any visible change.  
It was effectively a null setting.

I discovered some other issues while testing.  First, the settings for "debug 
station-names" and "symbol-show group centerline" are apparently global.  If 
they are set in any layout-endlayout section, then they are set for all 
subsequent layouts.  Is that how they should behave?

Second - I want to add the current date and Therion version to the legend.  
The TeX code includes \the\currentdate and \the\thversion.  Both items do show 
up on the legend, just below the symbol table.  However, they totally ignore 
the {\size[]} option.  Is that option implemented for these TeX macros?  It 
does not produce any errors when compiling the map.  It also does not change 
anything!  Another null setting ...

The Therion Book on page 69 lists all of the TeX macros that can be used on 
map layouts.  However, it says NOTHING about what options and parameters are 
implemented.  The sample code in the Therion Book, on the Wiki and in the 
files Torsten sent me show some of these macros with options.  Is there a 
place where ALL options and parameters of ALL macros are documented?

Thanks!

-- 
Bill Gee



On Friday, November 10, 2017 1:18:45 AM CST Bruce Mutton via Therion wrote:

Hi Bill
If I were in your situation (as I think I have been from time to time), then
I would opt for targeting an exported map that was close to the 3'x2' paper
size when printed at full size.  I would do this by using 'scale 1 xxx'
where xxx is one of the preferred scales that gives you close to the right
paper size. That is assuming the full size legend, north arrow, header text
are more or less the right size for your needs, or only need minor tweaks.

Then if some symbols are not quite right, I would limit my code
customisation to only those symbols.  Judging by examples you have posted
on the wiki, you are pretty good at this.  Examples in
https://therion.speleo.sk/wiki/metapost#cave_symbol_size_and_density_exampl
es provide some patterns to guide changes in fill density, and the
discussion near the top of the page about variables u, v and w might be
helpful.

As Felix mentioned, you can tweak text and symbol size with 'base-scale 1
yyy', if you want to optimise for printing larger or smaller than full
size.

Seems to me that this approach is likely to be the path of least resistance,
requiring only changes to your layouts and some metapost. Optimising
standard output elements for printing at the 'wrong size' just seems
counter productive to me.

I should admit however that I tend to avoid using fills like clay, sand,
debris, blocks, and rather use points.  That avoids the fill density issues
you describe, but I appreciate if you already have a large investment in
area fills your approach may be tempting.

Bruce

-----Original Message-----
From: Therion [mailto:therion-bounces@speleo.sk] On Behalf Of Bill Gee via
Therion Sent: Friday, 10 November 2017 8:37 AM
To: List for Therion users <therion@speleo.sk>
Cc: Bill Gee <bgee@campercaver.net>
Subject: Re: [Therion] Increase size of legend

Hi Bruce -

The reason for 1m x 0.6m paper (actually 3 feet by 2 feet) is because that
is the size of the frame that the landowner wishes to display the map in. 
It is also the largest size we can get printed for any reasonable cost.

I've been using 1:200 for this map.  Scales of 1:500 and higher make the
fills on the map too sparse.  A clay area might have one clay symbol in it.
Scales below 1:200 make the fills too dense.

--
Bill Gee

On Thursday, November 9, 2017 1:02:00 PM CST Bruce Mutton via Therion wrote:

Hi Bill

Sounds like you need to print on a larger piece of paper. 1m x 0.6m is
quite modest.  I presume you are not printing your pdf file out at the
full size that Therion generated it at.

I have not had any legend size issues with a 30km cave, although I must
admit that I do with very small caves, where the legend ends up much
bigger
than the cave itself!

If you want to fit your cave to paper of a particular size, then change
the
scale.  I rarely use anything less than 'scale 1 1000' for a cave longer
than 1km.

To be precise about fitting the cave to a particular paper size, then
'export atlas' will give a better result than 'export map', although of
course atlas do give quite a different end product, and take a bit more
care and attention to set up well.



Bruce



From: Therion [mailto:therion-bounces@speleo.sk] On Behalf Of Bill Gee via
Therion
Sent: Friday, 10 November 2017 2:45 AM
To: Therion Mail List <therion@speleo.sk>
Cc: Bill Gee <bgee@campercaver.net>
Subject: [Therion] Increase size of legend



Hello everyone -



I need to make the legend on a map larger. The cave has grown to nearly
3km
of passage, and even when printed on 60cm x 100cm paper the legend is too
smal to read. Even a magnifying glass does not help!

. snipped.

Thanks!

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