Importing survex .3d files
Therion surveys correspond to station prefixes defined by
Using surveys specified in .th files
If you will import .3d file with import use.3d -surveys use input use-out.th2 survey use input use-in.th2 endsurvey In this case, you should take care, where you input your .th2 files with scraps. In use-out.th2 file, you should refer to station names using: point 165.744 176.58 station -name 2@use but it use-in.th file using point 321.454 236.22 station -name 1 Map with station names in this case looks like this: Station names are before '@' symbol, survey names follow this symbol. Creating non-existing surveysIf you import your .3d file using import create.3d -surveys create all survex prefixes are taken into account and if surveys with corresponding names do not exist, they are created. In this case, if you do input create.th2
right after Ignoring station prefixesLast possibility is to import your .3d file using import ignore.3d -surveys ignore Also in this case, station references in corresponding .th2 file are same as station names on the next map. Note, that no surveys are created in this case. Station names are taken from .3d files without change. Managing large projectsAssume situation, when you want to join these three small maps within single large project. Assume, that coordinates of cave entrances are specified in the top-level cave.3d file. If your joining code will be import cave.3d -surveys use survey cave input use/use.th input create/create.th input ignore/ignore.th endsurvey not all stations are replaced correctly. The "created" series is placed wrong on the map.
This is because in top level import command, survey create is
imported from file
To solve this problem, we need to re-import stations
from top-level cave.3d file once more with import cave.3d -surveys use import cave.3d -surveys create survey cave input use/use.th input create/create.th input ignore/ignore.th endsurvey
After this additional Conclusion
Even there are several possibilities, how to map survex prefix structure
to therion survey structure, the most clean solution is to create
survey structure to desired depth in .th files using empty
|