Hi all Wookey wrote...
Mike - I have an interest in this too - mulu has large flowstone areas which are currently poorly (artistically) represented. I'd be happy to compare notes.
Well now that flowstone as an area is in Therion we can look at tweaking the metapost code. The ASF's images for flowstone is at: http://www.caves.org.au/m_stab-1c.html#6.0 It differs from gour pools in that the gour symbols all join or touch each other whereas the flowstone symbols are all separate. In the metapost code below I have increased the horizontal and vertical spacing a bit and my wife Jill thinks its pretty close now to the ASF symbol on the web. code metapost beginpattern(pattern_flowstone); pickup PenC; p:=(-.35u,0){dir -60} .. {dir 60}(0.35u,0); draw p; draw p shifted (0.35u,0.4u); # was (0.35u,0.3u) patternxstep(1.0u); # was 0.7 patternystep(0.8u); # was 0.6 endpattern; def a_flowstone_ASF (expr Path) = T:=identity; thclean Path; thfill Path withpattern pattern_flowstone; enddef; endcode Now .... rotation. We draw flowstone and gours oriented to the direction that they are in the cave. I think they are pretty much the only area fills that we orient. The rest like mad, sand, clay, moonmilk etc are all unorientated. Mike Lake