Plot a grid at regular texture intervals inside an existing soil texture triangle.
TT.grid(geo = geo, at = NULL, text.tol = NULL, text.sum = NULL,
blr.clock = NULL, grid.col = NULL, grid.lty = NULL,
lwd.axis = NULL, tri.sum.tst = NULL, tri.pos.tst = NULL,
class.p.bg.col = NULL, class.p.bg.hue = NULL, frame.bg.col = NULL,
bg = NULL, col.axis = 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]