xenial (1) pscoupe.1gmt.gz

Provided by: gmt-common_5.2.1+dfsg-3build1_all bug

NAME

       pscoupe - Plot cross-sections of focal mechanisms

SYNOPSIS

       pscoupe  [  files ] parameters region parameters [ [p|s]parameters ] [ color ] [ mode[args] ] [ color ] [
       ] [ [pen] ] [  ] [  ] [  ] [  ] [ <symbol><scale>[/d] ] [ n ] [ [just/dx/dy/][c|label] ] [  [level]  ]  [
       pen  ]  [  x_offset  ]  [ y_offset ] [ cpt ] [ -ccopies ] [ -di<nodata> ] [ -h<headers> ] [ -i<flags> ] [
       -:[i|o] ]

       Note: No space is allowed between the option flag and the associated arguments.

DESCRIPTION

       pscoupe reads data values from files [or standard input] and generates PostScript  code  that  will  plot
       symbols,  lines  or polygons on a cross-section. Focal mechanisms may be specified and require additional
       columns of data. The PostScript code is written to standard output.

       Unless  is used, new file is created with the new coordinates (x, y) and the mechanism (from lower  focal
       half-sphere  for  horizontal  plane,  to  half-sphere  behind  a  vertical  plane). When the plane is not
       horizontal, - north direction becomes upwards  steepest  descent  direction  of  the  plane  (u)  -  east
       direction  becomes  strike  direction  of  the plane (s) - down direction (= north^east) becomes u^s Axis
       angles are defined in the same way as in horizontal plane in the new system.  Moment tensor (initially in
       r, t, f system that is up, south, east) is defined in (-u^s, -u, s) system.

REQUIRED ARGUMENTS

       table  One  or  more  ASCII (or binary, see -bi[ncols][type]) data table file(s) holding a number of data
              columns. If no tables are given then we read from standard input.

       -Jparameters (more ...)
              Select map projection.

       -R[unit]west/east/south/north[/zmin/zmax][r]
              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. Using -Runit 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. If frame is defined from  cross-section  parameters
              (see -A this option is not taken into account, but must be present.

       -A     selects the cross-section.

              -Aalon1/lat1/lon2/lat2/dip/p_width/dmin/dmax[f]
                     lon  and  lat  are  the longitude and latitude of points 1 and 2 limiting the length of the
                     cross-section. dip is the dip of the plane on which the cross-section is made.  p_width  is
                     the  width  of  the  cross-section  on  each side of a vertical plane or above and under an
                     oblique plane. dmin and dmax are the distances min and max  from  horizontal  plane,  along
                     steepest descent direction. Add f to get the frame from the cross-section parameters.

              -Ablon1/lat1/strike/p_length/dip/p_width/dmin/dmax[f]
                     lon1  and lat1 are the longitude and latitude of the beginning of the cross-section. strike
                     is the azimuth of the direction of the cross-section. p_length is the  length  along  which
                     the cross-section is made. The other parameters are the same as for -Aa option.

              -Acx1/y1/x2/y2/dip/p_width/dmin/dmax[f]
                     The same as -Aa option with x and y cartesian coordinates.

              -Adx1/y1/strike/p_length/dip/p_width/dmin/dmax[f]
                     The same as -Ab option with x and y cartesian coordinates.

       -S     selects the meaning of the columns in the data file and the figure to be plotted.

              -Sascale[/fontsize[/offset[u]]]
                     Focal mechanisms in Aki and Richards convention. scale adjusts the scaling of the radius of
                     the "beach ball", which will be proportional to the magnitude. The scale is  the  size  for
                     magnitude  = 5 in PROJ_LENGTH_UNIT (unless c, i, or p is appended to indicate that the size
                     information is in units of cm, inches, meters, or points, respectively). Use the -T  option
                     to   render  the  beach  ball  transparent  by  drawing  only  the  nodal  planes  and  the
                     circumference. The color or shade of the compressive quadrants can be specified with the -G
                     option.  The color or shade of the extensive quadrants can be specified with the -E option.
                     Parameters are expected to be in the following columns:

                        1,2:   longitude, latitude of event (-: option interchanges order)

                        3:     depth of event in kilometers

                        4,5,6: strike, dip and rake

                        7:     magnitude

                        8,9:   not used; can be 0 0; allows use of the psmeca file format

                        10:    text string to appear above the beach ball (default) or under (add u).

              -Scscale
                     Focal mechanisms in Harvard CMT convention. scale adjusts the scaling of the radius of  the
                     "beach  ball",  which  will  be  proportional  to  the magnitude. The scale is the size for
                     magnitude = 5 (that is M0 = 4E+23 dynes-cm.) in PROJ_LENGTH_UNIT (unless  c,  i,  or  p  is
                     appended  to  indicate  that  the  size  information  is in units of cm, inches, meters, or
                     points, respectively). Use the -T option to render the beach ball  transparent  by  drawing
                     only  the  nodal  planes  and  the  circumference.  The  color  or shade of the compressive
                     quadrants can be specified with the  -G  option.  The  color  or  shade  of  the  extensive
                     quadrants  can  be  specified  with  the  -E  option.  Parameters are expected to be in the
                     following columns:

                        1,2:   longitude, latitude of event (-: option interchanges order)

                        3:     depth of event in kilometers

                        4,5,6: strike, dip, and slip of plane 1

                        7,8,9: strike, dip, and slip of plane 2

                        10,11: mantissa and exponent of moment in dyne-cm  (if  magnitude  is  uses  instead  of
                               scalar moment, magnitude is in column 10 and 0 must be in column 11)

                        12,13: not used; can be 0 0; allows use of the psmeca file format

                        14:    text string to appear above the beach ball (default) or under (add u).

              -Spscale[/fontsize[/offset[u]]]
                     Focal  mechanisms  given with partial data on both planes. scale adjusts the scaling of the
                     radius of the "beach ball", which will be proportional to the magnitude. The scale  is  the
                     size  for magnitude = 5 in PROJ_LENGTH_UNIT (unless c, i, or p is appended to indicate that
                     the size information is in units of cm, inches, meters, or points, respectively). The color
                     or  shade  of  the  compressive quadrants can be specified with the -G option. The color or
                     shade of the extensive quadrants can be  specified  with  the  -E  option.  Parameters  are
                     expected to be in the following columns:

                        1,2:   longitude, latitude of event (-: option interchanges order)

                        3:     depth

                        4,5:   strike, dip of plane 1

                        6:     strike of plane 2

                        7:     must be -1/+1 for a normal/inverse fault

                        8:     magnitude

                        9,10:  not used; can be 0 0; allows use of the psmeca file format

                        11:    text string to appear above the beach ball (default) or under (add u).

              -Sm|d|zscale[/fontsize[/offset[u]]]
                     Seismic  moment  tensor  (Harvard  CMT,  with zero trace). scale adjusts the scaling of the
                     radius of the "beach ball", which will be proportional to the magnitude. The scale  is  the
                     size for magnitude = 5 (that is seismic scalar moment = 4E+23 dynes-cm) in PROJ_LENGTH_UNIT
                     (unless c, i, or p is appended to indicate that the size information is  in  units  of  cm,
                     inches,  meters,  or  points,  respectively).  (-T0  option  overlays  best  double  couple
                     transparently.)

              -Sdscale[/fontsize[/offset[u]]]
                     to plot the only double couple part of moment tensor.

              -Szscale[/fontsize[/offset[u]]]
                     to plot anisotropic part of  moment  tensor  (zero  trace).  The  color  or  shade  of  the
                     compressive  quadrants  can  be  specified  with  the  -G option. The color or shade of the
                     extensive quadrants can be specified with the -E option.  Parameters are expected to be  in
                     the following columns:

                        1,2:   longitude, latitude of event (-: option interchanges order)

                        3:     depth of event in kilometers

                        4,5,6,7,8,9:
                               mrr, mtt, mff, mrt, mrf, mtf in 10*exponent dynes-cm

                        10:    exponent

                        11,12: Not used; can be 0 0; allows use of the psmeca file format

                        13:    Text string to appear above the beach ball (default) or under (add u).

              -Sxscale[/fontsize[/offset[u]]]
                     Principal  axis. scale adjusts the scaling of the radius of the "beach ball", which will be
                     proportional to the magnitude. The scale is the size for magnitude =  5  (that  is  seismic
                     scalar  moment  =  4*10e+23 dynes-cm) in PROJ_LENGTH_UNIT (unless c, i, or p is appended to
                     indicate that the  size  information  is  in  units  of  cm,  inches,  meters,  or  points,
                     respectively). (-T0 option overlays best double couple transparently.)

              -Syscale[/fontsize[/offset[u]]]
                     to plot the only double couple part of moment tensor.

              -Stscale[/fontsize[/offset[u]]]
                     to  plot  anisotropic  part  of  moment  tensor  (zero  trace).  The  color or shade of the
                     compressive quadrants can be specified with the -G  option.  The  color  or  shade  of  the
                     extensive  quadrants can be specified with the -E option.  Parameters are expected to be in
                     the following columns:

                        1,2:   longitude, latitude of event (-: option interchanges order)

                        3:     depth of event in kilometers

                        4,5,6,7,8,9,10,11,12:
                               value (in 10*exponent dynes-cm), azimuth, plunge of the T, N, and P axes.

                        13:    exponent

                        14,15: longitude, latitude at which to place beach ball. Entries in  these  columns  are
                               necessary  with  the -C option. Using 0,0 in columns 9 and 10 will plot the beach
                               ball at the longitude, latitude given in columns 1 and  2.  The  -:  option  will
                               interchange the order of columns (1,2) and (9,10).

                        16:    Text string to appear above the beach ball (optional).

OPTIONAL ARGUMENTS

       -B[p|s]parameters (more ...)
              Set map boundary intervals.

       -Ecolor
              Sets color or fill pattern for extensive quadrants [Default is white].

       -Fmode[args]
              Sets one or more attributes; repeatable. The various combinations are

       -Fssymbol[size[/fontsize[/offset[u]]]
              selects  a  symbol  instead  of mechanism. Choose from the following: (c) circle, (d) diamond, (i)
              itriangle, (s) square, (t) triangle, (x) cross.  size  is  the  symbol  size  in  PROJ_LENGTH_UNIT
              (unless  c,  i,  or p is appended to indicate that the size information is in units of cm, inches,
              meters, or points, respectively). If size must be read, it must be in column 4 and the text string
              will start in column 5. Parameters are expected to be in the following columns:

                 1,2:   longitude, latitude of event (-: option interchanges order)

                 3:     depth of event in kilometers

                 4:     Text string to appear above the beach ball (default) or under (add u).

       -Fa[size][/P_symbol[/T_symbol]]
              Computes  and plots P and T axes with symbols. Optionally specify size and (separate) P and T axis
              symbols from the following: (c) circle, (d) diamond, (h) hexagon, (i) inverse triangle, (p) point,
              (s) square, (t) triangle, (x) cross. [Default: 6p/cc]

       -Fecolor
              Sets the color or fill pattern for the T axis symbol. [Default as set by ]

       -Fgcolor
              Sets the color or fill pattern for the P axis symbol. [Default as set by ]

       -Fp[pen]
              Draws the P axis outline using current pen (see ), or sets pen attributes.

       -Fr[color]
              Draw a box behind the label (if any). [Default fill is white]

       -Ft[pen]
              Draws the T axis outline using current pen (see -W), or sets pen attributes.

       -Gcolor
              Sets color or fill pattern for compressional quadrants [Default is black].

       -K (more ...)
              Do not finalize the PostScript plot.

       -L[pen]
              Draws the "beach ball" outline using current pen (see ) or sets pen attributes.

       -M     Same size for any magnitude.

       -N     Does not skip symbols that fall outside map border [Default plots points inside border only].

       -O (more ...)
              Append to existing PostScript plot.

       -P (more ...)
              Select "Portrait" plot orientation.

       -Q     Suppress the production of files with cross-section and mechanism information.

       -T[num_of_planes]
              Plots  the nodal planes and outlines the bubble which is transparent.  If num_of_planes is 0: both
              nodal planes are plotted; 1: only the first nodal plane is plotted; 2: only the second nodal plane
              is plotted [Default: 0].

       -U[just/dx/dy/][c|label] (more ...)
              Draw GMT time stamp logo on plot.

       -V[level] (more ...)
              Select verbosity level [c].

       -W[-|+][pen][attr] (more ...)
              set  pen  attributes  for  text string or default pen attributes for fault plane edges. [Defaults:
              width = default, color = black, style = solid].

       -X[a|c|f|r][x-shift[u]]

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

       -Zcpt  Give a CPT file and let compressive part color be determined by the z-value in the third column.

       -ccopies (more ...)
              Specify number of plot copies [Default is 1].

       -dinodata (more ...)
              Replace input columns that equal nodata with NaN.

       -h[i|o][n][+c][+d][+rremark][+rtitle] (more ...)
              Skip or produce header record(s).

       -icols[l][sscale][ooffset][,...] (more ...)
              Select input columns (0 is first column).

       -:[i|o] (more ...)
              Swap 1st and 2nd column on input and/or output.

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

       -+ 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 options, then exits.

       --version
              Print GMT version and exit.

       --show-datadir
              Print full path to GMT share directory and exit.

SEE ALSO

       psmeca, psvelo, pspolar, gmt, psbasemap, psxy

REFERENCES

       Bomford, G., Geodesy, 4th ed., Oxford University Press, 1980.

       Aki, K. and P. Richards, Quantitative Seismology, Freeman, 1980.

       F.  A.  Dahlen  and  Jeroen  Tromp,  Theoretical Seismology, Princeton, 1998, p.167. Definition of scalar
       moment.

       Cliff Frohlich, Cliff's Nodes Concerning Plotting Nodal Lines for P, Sh and Sv

       Seismological Research Letters, Volume 67, Number 1, January-February, 1996

       Thorne Lay, Terry C. Wallace, Modern Global Seismology, Academic Press, 1995, p.384.

       W.H. Press, S.A. Teukolsky, W.T. Vetterling, B.P. Flannery, Numerical Recipes in C, Cambridge  University
       press (routine jacobi)

AUTHOR

       Genevieve Patau, Laboratory of Seismogenesis <http://www.ipgp.fr/rech/sismogenese/>, Institut de Physique
       du Globe de Paris, Departement de Sismologie, Paris, France

       2015, P. Wessel, W. H. F. Smith, R. Scharroo, J. Luis, and F. Wobbe