The -B option

$B $B<4$r(B log₁₀$B$K$9$k%*%W%7%g%s(B$B>e(B: GMT$B$N0lHLE*$J%3%^%s%I!D(B $BA0(B: GMT$B$N0lHL(B$BE*$J%3%^%s%I!D(B

-B $B%*%W%7%g%s(B

$B$3$l$O(BGMT$B$G$b$C$H$bFq$7$$%*%W%7%g%s$G$9$,!";HMQNc$O$H$F$b4JC1$G$9!#(B-Bxinfo[/yinfo][:."title string":][W|w][E|e][S|s][N|n]$B$N$h$&$K;XDj$7$^$9!#$3$N%9%$%C(B$B%A$O;XDj$5$l$?<4L\@94V3V$r;H$C$FCO?^$N6-3&$r(B$BFCDj$7$^$9!#(Bxinfo$B$H(Byinfo$B$O(B$B

[a]tick[m|c][ftick[m|c]][gtick[m|c]][l|p][:"$B<4%i%Y%k(B":]

$B$3$3$G(Ba, f, g $B$O$=$l$>$lJ8;z!"%U%l!<%`!"%0%j%C%I$N4V3V$r0UL#$7$^$9!#(Bm|c $B$OJ,(B(m)$B$*$h$SIC(B(c)$B$r0UL#$7(B$B$^$9!#%G%U%)%k%H$G$O!"(B4$B$D$N6-3&$9$Y$F$,%W%m%C%H$5$l$^(B$B$9!J$=$l$>$l(BW, E, S, N$B$H$"$i$o$7$^$9(B)$B!#$3$l$r(B$BK>$`$h$&$KJQ99$7$^$7$g$&(B($B$?$H$((B$B$P(BWSn$B$H$7$^$9(B)$B!#BgJ8;z(B($B$?$H$($P(BW)$B$O<4$*$h$SL\@9$K2C$(J8;z$bIA$/(B$B$3$H$r0U(B$BL#$7$^$9!#(B

$B?^(B: $BJ8;z!"%U%l!<%`!"%0%j%C%I$r0[$J$kCM$K$7$?COM}?^!#(B$BJ8;z$N=q<0$O(B.gmtdefaults$B%U%!%$%kCf$N%Q%i%a!<%?(BDEGREE_FORMAT$B$G;XDj$7$^$9!#(B
$\begin{figure} \centering \epsfig{figure=eps/GMT_-B_geo.eps}\end{figure}$

$B?^(B1.6: $B@~7A%G%+%k%HEj1F<4!#D9$$L\@9$OJ8;z$K$"$o(B$B$;$F!"$=$7$FC;$$L\@9$O%U%l!<%`4V3V$K$"$o$;$FIA$+(B$B$l$^$9!#<4%i%Y%k$O%*%W%7%g%s$G$9!#(B-R0/12/0/1 -JX3/0.4 -Ba4 f2 g1 $B$r;XDj$7$^$7$?!#(B
$\begin{figure} \centering \epsfig{figure=eps/GMT_-B_linear.eps} \end{figure}$

$B<4$r(Blog₁₀$B$K$9$k%*%W%7%g%s(B

$B<4$r;X?t$K$9$k%*%W%7%g%s(B

$B $B<4$r(B log₁₀$B$K$9$k%*%W%7%g%s(B$B>e(B: GMT$B$N0lHLE*$J%3%^%s%I!D(B $BA0(B: GMT$B$N0lHL(B$BE*$J%3%^%s%I!D(B

$B%]!<%k(B $B%Y%C%;%k(B
1999-06-09

-B $B%*%W%7%g%s(B

-B $B%*%W%7%g%s(B