selbox: Select a box

In rcdo: Wrapper of 'CDO' Operators

Select a box

Description

Selects grid cells inside a lon/lat or index box.

Usage

cdo_selindexbox(
  ifile,
  lon1 = NULL,
  lon2 = NULL,
  lat1 = NULL,
  lat2 = NULL,
  idx1 = NULL,
  idx2 = NULL,
  idy1 = NULL,
  idy2 = NULL,
  ofile = NULL
)

cdo_sellonlatbox(
  ifile,
  lon1 = NULL,
  lon2 = NULL,
  lat1 = NULL,
  lat2 = NULL,
  idx1 = NULL,
  idx2 = NULL,
  idy1 = NULL,
  idy2 = NULL,
  ofile = NULL
)

Arguments

ifile	String with the path to the input file.
lon1	FLOAT - Western longitude in degrees
lon2	FLOAT - Eastern longitude in degrees
lat1	FLOAT - Southern or northern latitude in degrees
lat2	FLOAT - Northern or southern latitude in degrees
idx1	INTEGER - Index of first longitude (1 - nlon)
idx2	INTEGER - Index of last longitude (1 - nlon)
idy1	INTEGER - Index of first latitude (1 - nlat)
idy2	INTEGER - Index of last latitude (1 - nlat)
ofile	String with the path to the output file.

Details

sellonlatbox  Select a longitude/latitude box
              Selects grid cells inside a lon/lat box. The user must specify the longitude and latitude of the edges of the box.
              Only those grid cells are considered whose grid center lies within the lon/lat box.
              For rotated lon/lat grids the parameters must be specified in rotated coordinates.
selindexbox   Select an index box
              Selects grid cells within an index box. The user must specify the indices of the edges of the box.
              The index of the left edge can be greater then the one of the right edge. Use negative indexing to
              start from the end. The input grid must be a regular lon/lat or a 2D curvilinear grid.

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.

rcdo documentation built on June 8, 2025, 12:36 p.m.