psrose  - Plot (length, azimuth) as windrose diagram or polar histogram
       (sector or rose diagram).


       psrose file [ -Asector_width[r] ] [ -Btickinfo ] [  -C[mode-file]  ]  [
       -Eazimuth/elevation ] [ -Gfill ] [ -H[nrec] ] [ -I ] [ -K ] [ -M[param-
       eters ] [ -O ] [ -P ] [ -Rr0/r1/az_0/az_1 ] [ -Sradial_scale[n] ] [  -T
       ] [ -U[/dx/dy/][label] ] [ -V ] [ -Wpen ] [ -Xx-shift ] [ -Yy-shift ] [
       -Zscale ] [ -ccopies ] [ -: ] [ -bi[s][n] ]


       psrose reads (length,azimuth) pairs from file [or standard  input]  and
       generates PostScript code that will plot a windrose diagram. Optionally
       (with -A), polar histograms may be drawn (sector diagram or  rose  dia-
       gram).  Options  include  full  circle  and  half  circle  plots.   The
       PostScript code is written to standard output.

       file   Name of ASCII [or binary, see -b]  data  file.  If  no  file  is
              given, psrose will read standard input.


       No space between the option flag and the associated arguments.

       -A     Gives  the  sector width in degrees for sector and rose diagram.
              [Default 0 means windrose diagram]. Append r to draw  rose  dia-
              gram instead of sector diagram.

       -B     Sets  map  boundary  annotation  and tickmark intervals; see the
              psbasemap man page for all the details.  Remember that "x"  here
              is radial distance and "y" is azimuth. The ylabel may be used to
              plot a figure caption.

       -C     Plot vectors showing the principal directions given in the modes
              file. If no file is given, compute and plot mean direction.

       -E     Sets the viewpoint’s azimuth and elevation [180/90]

       -G     Selects  shade  or color for sector infill [Default is no fill].
              Specify the shade (0-255) or color (r/g/b, each in 0-255, h/s/v,
              with  h in 0-360, s, and v in 0-1, and set COLOR_MODEL = hsv, or
              c/m/y/k, each in 0-100 %).

       -H     Input file(s) has Header record(s). Number of header records can
              be  changed  by  editing  your  .gmtdefaults4 file. If used, GMT
              default is 1 header record. Use -Hi if only  input  data  should
              have  header  records  [Default will write out header records if
              the input data have them].

       -I     Inquire. Computes statistics needed to  specify  useful  -R.  No
              plot is generated.

       -K     More  PostScript code will be appended later [Default terminates
              the plot system].

       -M     Specify   new   arrow   attributes    tailwidth/headlength/head-
              width/r/g/b  to  change  the appearance of arrows (Only if -C is
              set).     [Default      is      0.075c/0.3c/0.25c/0/0/0      (or

       -O     Selects  Overlay  plot mode [Default initializes a new plot sys-

       -P     Selects Portrait plotting mode [GMT Default  is  Landscape,  see
              gmtdefaults to change this].

       -R     Specifies  the  ’region’ of interest in (r,azimuth) space. r0 is
              0, r1 is max length in units. For azimuth,  specify  -90/90  for
              half circle plot or 0/360 for full circle.

       -S     Specifies radius of circle. Append n to normalize input radii to
              go from 0 to 1.

       -T     Specifies that the input data is orientation  data  (has  a  180
              degree  ambiguity)  instead  of  true  0-360  degree  directions

       -U     Draw Unix System time stamp on plot. User may specify where  the
              lower  left corner of the stamp should fall on the page relative
              to lower left corner of plot. Optionally, append a label,  or  c
              (which  will  plot  the  command  string.).  The  GMT parameters
              UNIX_TIME and UNIX_TIME_POS can affect the appearance;  see  the
              gmtdefaults man page for details.

       -V     Selects verbose mode, which will send progress reports to stderr
              [Default runs "silently"].

       -W     Set pen attributes for sector outline or rose plot. [Default  is
              no outline].

       -X -Y  Shift  origin of plot by (x-shift,y-shift).  Prepend a for abso-
              lute coordinates; the default (r) will reset plot origin.   Give
              c to center plot using current page size.

       -Z     Multiply  the  data radii by scale. E.g., use -Z0.001 to convert
              your data from m to km [Default is no scaling].

       -c     Specifies the number of plot copies. [Default is 1].

       -:     Input file has (azimuth,radius) pairs rather than  the  expected

       -bi    Selects  binary input. Append s for single precision [Default is
              double].  Append n for the  number  of  columns  in  the  binary
              [Default is 2 input columns].


       To  plot  a half circle rose diagram of the data in the file fault_seg-
       ments.az_r (containing pairs of (azimuth, length in meters), using a 10
       degree bin sector width, on a circle of radius = 3 inch, grid going out
       to radius = 150 km in steps of 25 km with a 30 degree sector  interval,
       radial  direction  annotated  every  50  km, using a light blue shading
       (200/240/255) outlined by a solid red pen (width = 0.75  points),  draw
       the mean azimuth, and shown in Portrait orientation, use:

       psrose      fault_segments.az_r      -R0/150/-90/90      -B50g25:"Fault
       length":/g30:."Rose diagram": -S3i -A10r -G200/240/255  -W0.75p/255/0/0
       -Z0.001 -C -P -T -: | lpr

       To  plot  a  full  circle  wind  rose  diagram  of the data in the file
       lines.r_az, on a circle of radius = 5 cm, grid going out  to  radius  =
       500  units  in  steps  of 100 with a 45 degree sector interval, using a
       solid pen (width = 0.5 point), and shown in landscape [Default]  orien-
       tation with UNIX timestamp and command line plotted, use:

       psrose  lines.az_r  -R0/500/0/360  -S5c -Bg100/g45:."Windrose diagram":
       -W0.5p -Uc | lpr


       No default radial scale and grid settings for  polar  histograms.  User
       must run psrose -I to find max length in binned data set.


       gmt(l), gmtdefaults(l), pshistogram(l)

GMT4.0                            1 Oct 2004                         PSROSE(l)

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