iaxlab - plot axes labels (default: 1) itrev - draw the time-distance plot with the time increasing downward (default: 0)
albht - height of axes labels (mm) (default: 2.5)
xmin, xmax - minimum and maximum distance (km) of velocity model
xmm - length of distance axis (mm)
xtmin, xtmax - minimum and maximum values (km) of tick marks
ntickx - number of intervals separated by tick marks along distance axis
ndecix - number of digits after decimal in distance axis annotation;
-1 for integer annotation (defaults: 0, none, 250; values for
xtmin, xtmax, ntickx and ndecix depend on values of xmin and xmax)
zmin, zmax - minimum and maximum depth (km) of velocity model
zmm - length of depth axis (mm)
ztmin, ztmax - minimum and maximum values (km) of tick marks
ntickz - number of intervals separated by tick marks along depth axis
ndeciz - number of digits after decimal in depth axis annotation;
-1 for integer annotation (defaults: 0, 50, 75; values for
ztmin, ztmax, ntickz and ndeciz depend on values of zmin and zmax)
xmint, xmaxt - minimum and maximum distance (km) of time-distance plot
xmmt - length of distance axis (mm)
xtmint, xtmaxt - minimum and maximum values (km) of tick marks
ntckxt - number of intervals separated by tick marks along distance axis
ndecxt - number of digits after decimal in distance axis annotation;
-1 for integer annotation (defaults: xmin, xmax, xmm; values for
xtmint, xtmaxt, ntckxt and ndecxt depend on values of xmint and xmaxt)
tmin, tmax - minimum and maximum time (s) of time-distance plot
tmm - length of time axis (mm)
ttmin, ttmax - minimum and maximum values (s) of tick marks
ntickt - number of intervals separated by tick marks along time axis
ndecit - number of digits after decimal in time axis annotation;
-1 for integer annotation (defaults: 0, 10, 75; values for
ttmin, ttmax, ntickt and ndecit depend on values of tmin and tmax)
orig - lower left origin of plot is (orig,orig) mm (default: 12.5)
sep - separation (mm) between the model and travel time diagrams
if isep=0 or 2 (default: 7.5)