Provided by: gmt_4.5.11-1build1_amd64 bug


       GMT - The Generic Mapping Tools data processing and display software package


       GMT  is  a  collection  of  public-domain Unix tools that allows you to manipulate x,y and
       x,y,z data sets (filtering,  trend  fitting,  gridding,  projecting,  etc.)   and  produce
       PostScript  illustrations ranging from simple x-y plots, via contour maps, to artificially
       illuminated surfaces and 3-D perspective views in  black/white  or  full  color.   Linear,
       log10,  and  power  scaling  is  supported  in addition to 25 common map projections.  The
       processing and display routines within GMT are completely  general  and  will  handle  any
       (x,y) or (x,y,z) data as input.


       GMT is also a wrapper script that can start any of the programs:

       GMT module module-options

       where  module  is the name of a GMT program and the options are those that pertain to that
       particular program.


       The following is a summary of all  the  programs  supplied  with  GMT  and  a  very  short
       description  of their purpose. Detailed information about each program can be found in the
       separate manual pages.

       blockmean      L2 (x,y,z) data filter/decimator
       blockmedian    L1 (x,y,z) data filter/decimator
       blockmode      Mode (x,y,z) data filter/decimator
       filter1d       Filter 1-D data sets (time series)
       fitcircle      Finds the best-fitting great circle to a set of points
       gmt2rgb        Convert Sun rasterfile or grid to r, g, b grids
       gmtconvert     Convert between ASCII and binary 1-D tables
       gmtdefaults    List the current default settings
       gmtmath        Mathematical operations on data tables
       gmtset         Set individual default parameters
       gmtselect      Extract data subsets based on spatial criteria
       grdfilter      Filter 2-D data sets in the space domain
       grd2cpt        Make a color palette table from grid files
       grd2xyz        Conversion from 2-D grid file to table data
       grdblend       Blend several partially over-lapping grid files onto one grid
       grdclip        Limit the z-range in gridded data
       grdcontour     Contouring of 2-D gridded data
       grdcut         Cut a sub-region from a grid file
       grdedit        Modify header information in a 2-D grid file
       grdfft         Operate on grid files in the wavenumber (or frequency) domain
       grdgradient    Compute directional gradient from grid files
       grdhisteq      Histogram equalization for grid files
       grdimage       Produce images from 2-D gridded data
       grdinfo        Get information about grid files
       grdlandmask    Create mask grid file from shoreline data base
       grdmask        Reset nodes outside a clip path to a constant
       grdmath        Mathematical operations on grid files
       grdpaste       Paste together grid files along a common edge
       grdproject     Project gridded data onto a new coordinate system
       grdreformat    Converting between different grid file formats
       grdsample      Resample a 2-D gridded data set onto a new grid
       grdtrend       Fits polynomial trends to grid files
       grdtrack       Sampling of 2-D data set along 1-D track
       grdvector      Plot vector fields from grid files
       grdview        3-D perspective imaging of 2-D gridded data
       grdvolume      Volume calculations from 2-D gridded data
       greenspline    Interpolation using Green's functions for splines in 1-3 dimensions
       makecpt        Make color palette tables
       mapproject     Forward or inverse map projections of table data
       minmax         Find extreme values in data tables
       nearneighbor   Nearest-neighbor gridding scheme
       project        Project data onto lines/great circles
       ps2raster      Crop and convert PostScript files to raster images, EPS, and PDF
       psbasemap      Create a basemap plot
       psclip         Use polygon files to define clipping paths
       pscoast        Plot coastlines and filled continents on maps
       pscontour      Contour xyz-data by triangulation
       pshistogram    Plot a histogram
       psimage        Plot images (EPS or Sun raster files) on maps
       pslegend       Plot legend on maps
       psmask         Create overlay to mask out regions on maps
       psrose         Plot sector or rose diagrams
       psscale        Plot gray scale or color scale on maps
       pstext         Plot text strings on maps
       pswiggle       Draw time-series along track on maps
       psxy           Plot symbols, polygons, and lines on maps
       psxyz          Plot symbols, polygons, and lines in 3-D
       sample1d       Resampling of 1-D table data sets
       spectrum1d     Compute various spectral estimates from time-series
       splitxyz       Split xyz-files into several segments
       surface        A continuous curvature gridding algorithm
       trend1d        Fits polynomial or Fourier trends to y = f(x) data
       trend2d        Fits polynomial trends to z = f(x,y) data
       triangulate    Perform optimal Delaunay triangulation and gridding
       xyz2grd        Convert equidistant xyz data to a 2-D grid file


       Look up the individual man pages for more  details  and  full  syntax.   Run  GMT  without
       options to list all GMT programs and to show all installation directories.  Information is
       also available on the GMT home page


       Wessel, P., and W. H. F. Smith, 2013, The  Generic  Mapping  Tools  (GMT)  version  4.5.11
       Technical Reference & Cookbook, SOEST/NOAA.
       Wessel,  P.,  and  W.  H.  F.  Smith, 1998, New, Improved Version of Generic Mapping Tools
       Released, EOS Trans., AGU, 79 (47), p. 579.
       Wessel, P., and W. H. F. Smith, 1995, New Version of the Generic Mapping  Tools  Released,
       EOS Trans., AGU, 76 (33), p. 329.
       Wessel,  P.,  and W. H. F. Smith, 1995, New Version of the Generic Mapping Tools Released,, Copyright 1995 by the American Geophysical Union.
       Wessel, P., and W. H. F. Smith, 1991, Free  Software  Helps  Map  and  Display  Data,  EOS
       Trans., AGU, 72 (41), p. 441.