[Therion] Drawing the map of a vertical cave

[Tarquin Wilton-Jones]

> 1. I also often use aven to assist my drawing. What helps me alot here is linux/kde, because I can do stuff in aven, put the window below xtherions and make the xtherion window  transparent. Aven works as a kind of „background image“ in that regard.


Now that is a really useful tip!
Shame Windows still seems to lack that feature, and every app that can 
do it is either abandonware or domain squatted, or an unsigned download 
from a dodgy site.

> 2. when drawing vertically, isn‘t drawing (and rendering)  exendet elevations far more useful and expressive?
> You also can export xvis in that projection.


For a vertical cave, almost always!
For a vein-based mine, not really, since you want to preserve the 
relationships between levels, because the standard view is a cross 
section through a mountain, and they regularly join each other. 
Projected elevation can often be best there.

But I think Jean-Florent's question is almost certainly about drawing 
the plan view, which is a nightmare when everything overlaps everything 
else.