This module prints the first field of the input dataset to standard output. The output can be used to generate 2D Lon/Lat plots with GMT. The format of the output depends on the chosen operator.
Value
Operators that output one or more files return a character vector to the output files.
Operators that output an indefinite number of files return a string with the basename of the files.
Operatos that don't return filenames return a character vector with the string output.
Details
gmtxyz GMT xyz format
The operator exports the first field to the GMT xyz ASCII format.
The output can be used to create contour plots with the GMT module pscontour.
gmtcells GMT multiple segment format
The operator exports the first field to the GMT multiple segment ASCII format.
The output can be used to create shaded gridfill plots with the GMT module psxy.