Oops I attempted to equate a pair of stations to close a large loop in an otherwise well behaved but complex model, and suddenly Therion reports a software BUG. About to post this message, and noticed that I had this same issue 11 years ago https://www.mail-archive.com/therion@speleo.sk/msg03641.html although that time the culprit was thdb1d.cxx:2290. I think it was associated with some 'no-survey' statements, but I am not sure. Any ideas? Bruce
From therion.log .
2024.1.1 22.6293 scanning centreline tree ... done searching for centerline loops ... done calculating station coordinates ... C:\Program Files (x86)\Therion\therion.exe: error -- a software BUG is present (D:/a/therion/therion/thdb1d.cxx:2418) writing xtherion file ... done