GMT

Section: Misc. Reference Manual Pages (l)
Updated: DATE
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NAME

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

INTRODUCTION

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 24bit color. Linear, log10, and power scaling is supported in additon to 20 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 OVERVIEW

       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

       filter1d                        Filter 1-D data sets (time series)

       fitcircle                       Finds the best-fitting great circle for a set of points

       gmtdefaults             List the current default settings

       grdfilter                       Filter 2-D data sets in the space domain

       grd2cpt                 Make a color palette table from a grdfile

       grd2xyz                 Conversion from 2-D gridded file to ASCII listing

       grdclip                 Limit the z-range in gridded data sets

       grdcontour              Contouring of 2-D gridded data sets

       grdcut                  Cut a sub-region from a grd file

       grdedit                 Modify header information in a 2-D gridded file

       grdfft                  Perform operations on grdfiles in the frequency domain

       grdgradient             Compute directional gradient from grdfiles

       grdhisteq               Histogram equalization for grdfiles

       grdimage                Produce images from 2-D gridded data sets

       grdinfo                 Get information about grd files

       grdlandmask             Create mask grdfile from shoreline data base

       grdmask                 Reset nodes outside a clip path to a constant

       grdmath                 Mathematical operations on grdfiles

       grdpaste                        Paste together grdfiles along a common edge

       grdproject              Project gridded data sets onto a new coordinate system

       grdreformat             Converting between different grdfile formats

       grdsample               Resample a 2-D gridded data set onto a new grid

       grdtrend                        Fits polynomial trends to grdfiles

       grdtrack                        Sampling of 2-D data set along 1-D track

       grdvector               Plot vector fields from grdfiles

       grdview                 3-D perspective imaging of 2-D gridded data sets

       makecpt                 Make GMT color palette tables

       mapproject              Transformation of coordinate systems for ASCII data

       minmax                  Find extreme values in ASCII tables

       nearneighbor            Nearest-neighbor gridding scheme

       project                 Project data onto lines/great circles

       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

       psmask                  Create overlay to mask out regions on maps

       psmegaplot              Create postersize plots from postscript files

       psrose                  Plot sector or rose diagrams

       psscale                 Plot grayscale or colorscale on maps

       pstext                  Plot textstrings 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 ASCII 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 trends to y = f(x) series

       trend2d                 Fits polynomial trends to z = f(x,y) series

       triangulate             Perform optimal Delaunay triangulation and gridding

       xyz2grd                 Convert an equidistant ASCII xyz file to a 2-D grd file

 

SEE ALSO

Look up the individual man pages for details.
Some information is also avaiable on the GMT Word Wide Web home page (http:www.soest.hawaii.edu/soest/gmt.html) #include "refs.i"


 

Index

NAME
INTRODUCTION
GMT OVERVIEW
SEE ALSO

This document was created by man2html, using the manual pages.
Time: 07:11:19 GMT, January 07, 2025