FILTERING OF 1-D AND 2-D DATA | |
blockmean | L![]() ![]() |
blockmedian | L![]() ![]() |
blockmode | Mode estimate (![]() |
filter1d | Filter 1-D data (time series) |
grdfilter | Filter 2-D data in space domain |
PLOTTING OF 1-D and 2-D DATA | |
grdcontour | Contouring of 2-D gridded data |
grdimage | Produce images from 2-D gridded data |
grdvector | Plot vector fields from 2-D gridded data |
grdview | 3-D perspective imaging of 2-D gridded data |
psbasemap | Create a basemap frame |
psclip | Use polygon files as clipping paths |
pscoast | Plot coastlines, filled continents, rivers, and political borders |
pscontour | Direct contouring or imaging of xyz data by triangulation |
pshistogram | Plot a histogram |
psimage | Plot Sun rasterfiles on a map |
pslegend | Plot a legend on a map |
psmask | Create overlay to mask specified regions of a map |
psrose | Plot sector or rose diagrams |
psscale | Plot grayscale or colorscale |
pstext | Plot textstrings |
pswiggle | Draw anomalies along track |
psxy | Plot symbols, polygons, and lines in 2-D |
psxyz | Plot symbols, polygons, and lines in 3-D |
GRIDDING OF (X,Y,Z) TABLE DATA | |
nearneighbor | Nearest-neighbor gridding scheme |
surface | Continuous curvature gridding algorithm |
triangulate | Perform optimal Delauney triangulation on xyz data |
SAMPLING OF 1-D AND 2-D DATA | |
grdsample | Resample a 2-D gridded data onto new grid |
grdtrack | Sampling of 2-D data along 1-D track |
sample1d | Resampling of 1-D data |
PROJECTION AND MAP-TRANSFORMATION | |
grdproject | Transform gridded data to a new coordinate system |
mapproject | Transform table data to a new coordinate system |
project | Project data onto lines or great circles |
INFORMATION | |
gmtdefaults | List the current default settings |
gmtset | Command-line editing of parameters in the .gmtdefaults4 file |
grdinfo | Get information about the content of gridded files |
minmax | Report extreme values in table data files |
MISCELLANEOUS | |
gmtmath | Reverse Polish Notation (RPN) calculator for table data |
makecpt | Create GMT color palette tables |
spectrum1d | Compute spectral estimates from time-series |
triangulate | Perform optimal Delauney triangulation on xyz data |
CONVERT OR EXTRACT SUBSETS OF DATA | |
gmt2rgb | Convert Sun raster or grd file to red, green, blue component grids |
gmtconvert | Convert table data from one format to another |
gmtselect | Select table data subsets based on multiple spatial criteria |
grd2xyz | Convert 2-D gridded data to table data |
grdcut | Cut a sub-region from a gridded file |
grdblend | Blend several partially over-lapping grdfiles onto one grid |
grdpaste | Paste together gridded files along common edge |
grdreformat | Convert from one grid format to another |
splitxyz | Split (![]() |
xyz2grd | Convert table data to 2-D gridded file |
DETERMINE TRENDS IN 1-D AND 2-D DATA | |
fitcircle | Finds best-fitting great or small circles |
grdtrend | Fits polynomial trends to gridded files (![]() |
trend1d | Fits polynomial or Fourier trends to ![]() |
trend2d | Fits polynomial trends to ![]() |
OTHER OPERATIONS ON 2-D GRIDS | |
grd2cpt | Make color palette table from gridded file |
grdclip | Limit the ![]() |
grdedit | Modify grid header information |
grdfft | Operate on gridded files in frequency domain |
grdgradient | Compute directional gradients from gridded files |
grdhisteq | Histogram equalization for gridded files |
grdlandmask | Creates mask gridded file from coastline database |
grdmask | Set grid nodes in/outside a clip path to constants |
grdmath | Reverse Polish Notation (RPN) calculator for gridded files |
grdvolume | Calculate volume under a surface within a contour |
STANDARDIZED COMMAND LINE OPTIONS | |
-B[p![]() |
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[t]stride[![]() ![]() ![]() |
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type t = {a, A, f, g, i, I}; unit u = {c, C, d, D, h, H, K, k, m, M, o, O, r, R, u, U, y, Y} | |
The leading p![]() |
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-H[bf i][n_headers] | ASCII [input] tables have header record[s] |
-J (upper case for width, lower case for scale) | Map projection (see below) |
-JA
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Lambert azimuthal equal area |
-JB
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Albers conic equal area |
-JC
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Cassini cylindrical |
-JD
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Equidistant conic |
-JE
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Azimuthal equidistant |
-JF
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Azimuthal Gnomonic |
-JG
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Azimuthal orthographic |
-JH![]() |
Hammer equal area |
-JI![]() |
Sinusoidal equal area |
-JJ![]() |
Miller cylindrical |
-JKf![]() |
Eckert IV equal area |
-JKs![]() |
Eckert VI equal area |
-JL
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Lambert conic conformal |
-JM![]() ![]() |
Mercator cylindrical |
-JN![]() |
Robinson |
-JOa
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Oblique Mercator, 1: origin and azimuth |
-JOb
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Oblique Mercator, 2: two points |
-JOc
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Oblique Mercator, 3: origin and pole |
-JP[a![]() ![]() |
Polar [azimuthal] (![]() |
-JQ![]() |
Equidistant cylindrical (Plate Carrée) |
-JR![]() |
Winkel Tripel |
-JS
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General stereographic |
-JT![]() |
Transverse Mercator |
-JU![]() |
Universal Transverse Mercator (UTM) |
-JV![]() |
Van der Grinten |
-JW![]() |
Mollweide |
-JX![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Linear, log![]() ![]() ![]() |
-JY
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General cylindrical equal area |
-K | Append more PS later |
-O | This is an overlay plot |
-P | Select Portrait orientation |
-Rwest/east/south/north[/zmin/zmax][r] | Specify Region of interest |
-U[/dx/dy/][label] | Plot time-stamp on plot |
-V | Run in verbose mode |
-X[a]off | Shift plot origin in ![]() |
-Y[a]off | Shift plot origin in ![]() |
-b[i![]() |
Select binary input or output |
-ccopies | Set number of plot copies [1] |
-f[i![]() |
Set formatting of ASCII input or output |
-: | Expect y/x input rather than x/y |