SACfiles

SAC files to plot on a map. Only evenly spaced SAC data is supported.

saclist

One ASCII data table file holding a number of data columns. If saclist is not given then we read from standard input. Parameters are expected to be in the following columns:

filename is the name of SAC file to plot. X and Y are the position of seismograms to plot on a map. On linear plots, the default X is the begin time of SAC file, which will be adjusted if -T option is used, the default Y is determined by -E option. On geographic plots, the default X and Y are station longitude and latitude specified in SAC header. The X and Y given here will override the position determined by command line options. pen, if given, will override the pen from -W option for current SAC file only.

-Jparameters (more ...)

Select map projection.

-Rwest/east/south/north[/zmin/zmax][+r][+uunit]

west, east, south, and north specify the region of interest, and you may specify them in decimal degrees or in [±]dd:mm[:ss.xxx][W|E|S|N] format Append +r if lower left and upper right map coordinates are given instead of w/e/s/n. The two shorthands -Rg and -Rd stand for global domain (0/360 and -180/+180 in longitude respectively, with -90/+90 in latitude). Alternatively for grid creation, give Rcodelon/lat/nx/ny, where code is a 2-character combination of L, C, R (for left, center, or right) and T, M, B for top, middle, or bottom. e.g., BL for lower left. This indicates which point on a rectangular region the lon/lat coordinate refers to, and the grid dimensions nx and ny with grid spacings via -I is used to create the corresponding region. Alternatively, specify the name of an existing grid file and the -R settings (and grid spacing, if applicable) are copied from the grid. Appending +uunit expects projected (Cartesian) coordinates compatible with chosen -J and we inversely project to determine actual rectangular geographic region. For perspective view (-p), optionally append /zmin/zmax. In case of perspective view (-p), a z-range (zmin, zmax) can be appended to indicate the third dimension. This needs to be done only when using the -Jz option, not when using only the -p option. In the latter case a perspective view of the plane is plotted, with no third dimension.

-B[p|s]parameters (more ...)

Set map boundary frame and axes attributes.

-C[t0/t1]

Read and plot seismograms in timewindow between t0 and t1 only. t0 and t1 are relative to a reference time specified by -T. If -T option is not specified, use the reference time (kzdate and kztime) defined in SAC header instead. If only -C is used, t0/t1 is determined as xmin/xmax from -R option.

-Ddx[/dy]

Offset seismogram positions by the given mount dx/dy [Default is no offset]. If dy is not given it is set equal to dx.

-Ea|b|k|d|n[n]|u[n]

Choose profile type (the type of Y axis).

-F[i][q][r]

Data preprocess before plotting.

i|q|r can repeat multiple times. For example, -Frii will convert acceleration to displacement. The order of i|q|r controls the order of the data processing.

-G[p|n][+gfill][+zzero][+tt0/t1]

Paint positive or negative portion of traces. If only -G is used, default to fill the positive portion black.

-K (more ...)

Do not finalize the PostScript plot.

-Msize[u][/alpha]

Vertical scaling.

-O (more ...)

Append to existing PostScript plot.

-P (more ...)

Select "Portrait" plot orientation.

-Q

Plot traces vertically.

-S[i]scale[unit]

Sets time scale in seconds per <unit> while plotting on geographic plots. Append c, i, or p to indicate cm, inch or points as the unit. Use PROJ_LENGTH_UNIT if unit is omitted. Use -Siscaleunit to give the reciprocal scale, i.e. cm per second or inch per second.

-T[+tn][+rreduce_vel][+sshift]

Time alignment and shift.

-U[[just]/dx/dy/][c|label] (more ...)

Draw GMT time stamp logo on plot.

-V[level] (more ...)

Select verbosity level [c].

-Wpen

Set pen attributes for all traces unless overruled by pen specified in saclist. [Defaults: width = default, color = black, style = solid].

-Y[a|c|f|r][y-shift[u]] (more ...)

Shift plot origin.

-h[i|o][n][+c][+d][+rremark][+rtitle] (more ...)

Skip or produce header record(s).

-t[transp] (more ...)

Set PDF transparency level in percent.

-^ or just -

Print a short message about the syntax of the command, then exits (NOTE: on Windows just use -).

-+ or just +

Print an extensive usage (help) message, including the explanation of any module-specific option (but not the GMT common options), then exits.

-? or no arguments

Print a complete usage (help) message, including the explanation of all options, then exits.