Retrieve and return the geometrical parameters from a list of parameter values (NULL or not).
TT.geo.get(class.sys = NULL, blr.clock = NULL, tlr.an = NULL,
blr.tx = NULL, text.sum = NULL, base.css.ps.lim = NULL)
Julien Moeys [aut, cre], Wei Shangguan [ctb], Rainer Petzold [ctb], Budiman Minasny [ctb], Bogdan Rosca [ctb], Nic Jelinski [ctb], Wiktor Zelazny [ctb], Rodolfo Marcondes Silva Souza [ctb], Jose Lucas Safanelli [ctb], Alexandre ten Caten [ctb]