[Therion] Showing a lower scrap down a pit in an overlying scrap

[Martin Sluka]

To make pit transparent just add to line pit option -outline in. 

Odesláno z iPhonu

8. 5. 2012 v 15:28, Footleg <drfootleg at gmail.com>:

> I've been experimenting to try to draw some more complex features in
> Therion. One of these is where a passage contains a pit with a second
> scrap going off at the bottom of the pit. There is an example of this
> in the Therion By Examples pages on the wiki.
> http://therion.speleo.sk/wiki/doku.php?id=tbe:wiki3
> 
> In that example the lower scrap in included in a separate map, and
> that map is then included in the upper map using the preview command:
> 
> map map5 -proj plan
>   scrap1 at s1
>   break
>   scrap2 at s2
>   preview above map22
> endmap
> 
> What is the purpose of using two maps here? I appear to be able to do
> this with a single map containing the two scraps.
> 
> My second question is whether it is possible to show the pit as a hole
> so that the colour of the lower scrap shows in the bottom of the pit
> when I colour by altitude. Currently my pit is coloured the colour of
> the upper scrap and the colour at the bottom of the pit shows through
> the transparent upper scrap. But as there is no floor in the upper
> scrap at this point, I want to have no colour shading in the upper
> scrap so it is clear that the bottom of the pit is at the level of the
> lower passage. See the attached bitmap showing an example of what I
> mean (not drawn with Therion). The green lower passage is clearly
> shown at the bottom of the pit where the pit floor is coloured green.
> Can I do this in Therion?
> 
> Footleg
> <PitColouredByAltitude.png>
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