Dear Marco, Could you expand on how you computed the volume from the dxf file? I would be very interested to perform that for (no so small) mines!
Thanks Xavier Le 27/02/2013 11:37, Marco Corvi a écrit : > hi, > > it just happened that i was asked to estimate the volume of a "cave" > (actually a small mine). > > therion dxf export is a triangulated surface of the cave wall. > if the surface were oriented > it would be extremely easy to compute the volume. > (the surface of a real cave is always orientable: no klein cave). > > all recent versions of therion produce nice-looking dxf. > i tried 5.3.5 and the volume seemed reasonable. > then i tried 5.3.11 and i got an unreasonable value (there is also > a commented option for new 3d, and the result was even more unreasonable). > > so i checked the dxf files. > it seems that none of them is oriented. > is it possible to make therion produce an oriented surface? > thanks. > > marco > > > > _______________________________________________ > Therion mailing list > Therion at speleo.sk > http://mailman.speleo.sk/mailman/listinfo/therion -- > ------------------------- > Xavier Pennec > Senior Research Scientist / Directeur de recherche > Asclepios project-team, INRIA Sophia-Antipolis > 2004 Route des Lucioles, BP93 > F-06902 Sophia-Antipolis Cedex, France > +33 4 92 38 76 64 > +33 6 78 35 16 90 > http://www-sop.inria.fr/asclepios/ > ------------------------------- -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mailman.speleo.sk/pipermail/therion/attachments/20130227/8349c395/attachment.html>
