Footleg
This was one of my early challenges
shortly after discovering Therion, and it crops up from time to time on this
forum.
I have decided that with ‘draw once,
use many times’ I am limited to about half an order of magnitude
difference in scales (ie 1:500 to 1:2000) to get label spacing and symbol
placement that is more or less OK at a range of scales.
Personally, once I get to 1:5000 I pretty
much turn off all symbols. http://therion.speleo.sk/wiki/doku.php/templates
Judicious use of text scales xs, s, m, l,
xl allows one to crudely hide minor text at smaller scales.
You can use base-scale to globally reduce
all text and symbol sizes.
Thomas Holders examples show how symbols
can be made to plot to suit the scale. Ie hide smaller symbols. http://therion.speleo.sk/wiki/doku.php/metapost?s[]=thomas#scale_dependant_visualization_of_symbols
People have proposed various ‘dual
scrap’ scenarios, but it seems to defeat what simplicity Therion has :)
You could use ‘revise’ for
each symbol, but I think madness would lie down that route.
Check the wiki.
Bruce
From:
therion-bounces@speleo.sk [mailto:therion-bounces@speleo.sk] On Behalf Of Footleg
Sent: Tuesday, 4 March 2014 7:01
a.m.
To:
Subject: [Therion] Drawing for
generating outputs at multiple differentscales
Now that I have enough knowledge to really start drawing up my large
project cave systems, I am discovering that it is difficult to draw scraps in a
way which renders nicely at different scales. I want to be able to produce a
very detailed survey (using a scale of around 1:500) but also to output a
complete system drawing at a scale more suited to a large map (say 1:5000). I
find symbols getting rendered larger than the passage widths (which seems odd
as unless people have much larger passages than me in their caves, I would
expect symbols to be limited to a sensible scale for a typical large passage,
or omitted?). But also text labels are so large that they obscure entire areas
of the cave at the 1:5000 scale.
Any tips and tricks for how to draw once, use twice? Or do I really
need to maintain two copies of every scrap? Is there a way to draw some detail
on a scrap for 1:5000 type scale, and then augment it with fine details for
rendering at 1:500 by adding a second scrap for the labels and symbols?
Footleg