/usr/bin/scrip_check_input is in ncl-ncarg 6.3.0-6build1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 | #!/bin/csh -f
#
# $Id: scrip_check_input,v 1.3 2008-07-27 03:41:28 haley Exp $
#
# Copyright (C) 2007-2008
# University Corporation for Atmospheric Research
# All Rights Reserved
#
# File: scrip_check_input
# Author: Fred Clare
#
# National Center for Atmospheric Research
# POB 3000, Boulder, Colorado
#
# This script takes as its single argument a NetCDF file used as
# an input file for SCRIP and tests whether the coordinates of all
# cells are entered in counterclockwise order and also tests whether
# the cell centers are on the interior (or boundary) of the cells.
# For details on SCRIP, see: http://climate.lanl.gov/Software/SCRIP/
#
set progname = `basename $0`
#
# Precisely one argument accepted.
#
if (($#argv < 1) || ($#argv > 1)) then
goto USAGE
endif
set input_file = $1
#
# Put the NCL script in a temporary file.
#
set tmpdir = `ncargpath tmp`
set tmp_nclf = "$tmpdir/tmp$$.ncl"
/bin/rm $tmp_nclf >& /dev/null
cat << 'EOF_NCL' >! $tmp_nclf
begin
;
; Check that file_in was specified in the call.
;
if (.not. isvar("file_in")) then
print("")
print("scrip_check_input.ncl - no input file entered.")
print("")
return(1)
exit
end if
f = addfile(file_in,"r")
;
; Get variable names in the file.
;
varnames = getfilevarnames(f)
;
; Make sure the input file has the required variable names
; and attributes.
;
check_varnames = (/"grid_corner_lat", "grid_corner_lon", \
"grid_center_lat", "grid_center_lon"/)
do i=0,dimsizes(check_varnames)-1
if(.not.any(check_varnames(i) .eq. varnames)) then
print("Input file does not contain variable '" + check_varnames(i) + "'.")
print("Can't continue.")
exit
end if
if(.not.isatt(f->$check_varnames(i)$,"units")) then
print("'" + check_varnames(i) + "' does not contain 'units' attribute.")
print("Can't continue.")
exit
end if
end do
r2d = 180./3.1415926536
;
; Read the SCRIP input file.
;
lat_corners = f->grid_corner_lat
lon_corners = f->grid_corner_lon
lat_centers = f->grid_center_lat
lon_centers = f->grid_center_lon
center_lat_units = f->grid_center_lat@units
center_lon_units = f->grid_center_lon@units
corner_lat_units = f->grid_corner_lat@units
corner_lon_units = f->grid_corner_lon@units
if (center_lat_units .eq. "radians") then
conv_center_lat= r2d
end if
if (center_lat_units .eq. "degrees") then
conv_center_lat= 1.
end if
if (center_lat_units.ne."radians" .and. center_lat_units.ne."degrees") then
print("")
print("scrip_check_input.ncl - The grid_center_lat units must")
print(" be specified as either")
print(" 'radians' or 'degrees'")
print("")
return(1)
end if
if (center_lon_units .eq. "radians") then
conv_center_lon= r2d
end if
if (center_lon_units .eq. "degrees") then
conv_center_lon= 1.
end if
if (center_lon_units.ne."radians" .and. center_lon_units.ne."degrees") then
print("")
print("scrip_check_input.ncl - The grid_center_lon units must")
print(" be specified as either")
print(" 'radians' or 'degrees'")
print("")
return(1)
end if
if (corner_lat_units .eq. "radians") then
conv_corner_lat= r2d
end if
if (corner_lat_units .eq. "degrees") then
conv_corner_lat= 1.
end if
if (corner_lat_units.ne."radians" .and. corner_lat_units.ne."degrees") then
print("")
print("scrip_check_input.ncl - The grid_corner_lat units must")
print(" be specified as either")
print(" 'radians' or 'degrees'")
print("")
return(1)
end if
if (corner_lon_units .eq. "radians") then
conv_corner_lon= r2d
end if
if (corner_lon_units .eq. "degrees") then
conv_corner_lon= 1.
end if
if (corner_lon_units.ne."radians" .and. corner_lon_units.ne."degrees") then
print("")
print("scrip_check_input.ncl - The grid_corner_lon units must")
print(" be specified as either")
print(" 'radians' or 'degrees'")
print("")
return(1)
end if
clck = gc_clkwise(conv_corner_lat*lat_corners, \
conv_corner_lon*lon_corners)
if (num(ind(clck)) .gt. 0) then
print("scrip_check_input - The corner points for cells with the")
print(" following indices are not listed in ")
print(" counterclockwise order: ")
print(" " + ind(clck))
end if
if (num(ind(clck)) .eq. 0) then
print("scrip_check_input - point ordering (counterclockwise) test")
print(" for input cells completed, no errors.")
print("")
end if
ierror = 0
do i=0,dimsizes(lat_centers)-1
inside = gc_inout(conv_center_lat*lat_centers(i), \
conv_center_lon*lon_centers(i), \
conv_center_lat*lat_corners(i,:), \
conv_center_lon*lon_corners(i,:))
if (inside .eq. False) then
print("scrip_check_input - The center point for the cell with the")
print(" following cell index is not within or on")
print(" the cell boundary: " + i)
ierror = 1
end if
end do
if (ierror .eq. 0) then
print("scrip_check_input - cell centers inside cells test")
print(" completed, no errors.")
end if
end
'EOF_NCL'
#
# Execute the NCL script.
#
eval ncl file_in=\\\"$input_file\\\" $tmp_nclf
#
# Clean up
#
/bin/rm -f $tmp_nclf
exit 0
USAGE:
echo ""
echo "Usage: ${progname} input_file"
echo ""
echo " input_file name of the NetCDF-formatted file that is to"
echo " be used as an input file for the SCRIP package."
echo " For details on the required file structure and"
echo " the SCRIP package see:"
echo " http://climate.lanl.gov/Software/SCRIP/"
echo ""
echo " This script tests whether the coordinates of all cells "
echo " in the input file are entered in counterclockwise order "
echo " and also tests whether the cell centers are on the interior "
echo " of the cells. "
echo " "
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