/usr/share/octave/packages/netcdf-1.0.11/ncwriteschema.m is in octave-netcdf 1.0.11-3.
This file is owned by root:root, with mode 0o644.
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 | ## Copyright (C) 2013 Alexander Barth
##
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; either version 2 of the License, or
## (at your option) any later version.
##
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with this program; If not, see <http://www.gnu.org/licenses/>.
## -*- texinfo -*-
## @deftypefn {Function File} {} ncwriteschema (@var{filename}, @var{shema})
##
## Create a NetCDF called @var{filename} with the dimensions, attributes,
## variables and groups given by the structure @var{schema}.
##
## The variable @var{schema} has the same structure as the results of
## @code{ncinfo}. @code{ncinfo} and @code{ncwriteschema} can be used together to
## create a NetCDF using another file as a template:
##
## @example
## schema = ncinfo("template.nc");
## # the new file should be named "new_file.nc"
## ncwriteschema("new_file.nc",schema);
## @end example
##
## Unused field in @var{schema} such as @var{ChunkSize}, @var{Shuffle},
## @var{DeflateLevel}, @var{FillValue}, @var{Checksum} can be left-out if the
## corresponding feature is not used.
##
## Dimensions are considered as limited if the field @var{Unlimited} is missing,
## unless the dimension length is Inf.
##
## @seealso{ncinfo}
##
## @end deftypefn
function ncwriteschema(filename,s)
mode = format2mode(s.Format);
ncid = netcdf_create(filename,mode);
write_group(ncid,s)
netcdf_close(ncid);
end
function write_group(ncid,s)
% normalize schema
if ~isfield(s,'Dimensions')
s.Dimensions = [];
end
if isempty(s.Dimensions)
s.Dimensions = struct('Name',{},'Length',{},'Unlimited',{});
end
if ~isfield(s,'Attributes')
s.Attributes = struct('Name',{},'Value',{});
end
if ~isfield(s,'Variables')
s.Variables = struct('Name',{},'Dimensions',{},'Datatype',{});;
end
% dimension
for i = 1:length(s.Dimensions)
dim = s.Dimensions(i);
if ~isfield(dim,'Unlimited')
dim.Unlimited = false;
end
len = dim.Length;
if dim.Unlimited || isinf(len)
len = netcdf_getConstant('NC_UNLIMITED');
end
s.Dimensions(i).id = netcdf_defDim(ncid,dim.Name,len);
end
% global attributes
gid = netcdf_getConstant('NC_GLOBAL');
for j = 1:length(s.Attributes)
netcdf_putAtt(ncid,gid,s.Attributes(j).Name,s.Attributes(j).Value);
end
% variables
for i = 1:length(s.Variables)
v = s.Variables(i);
%v.Name
% get dimension id
dimids = zeros(length(v.Dimensions),1);
for j = 1:length(v.Dimensions)
dimids(j) = netcdf_inqDimID(ncid,v.Dimensions(j).Name);
end
% define variable
dtype = oct2nctype(v.Datatype);
varid = netcdf_defVar(ncid,v.Name,dtype,dimids);
% define attributes
for j = 1:length(v.Attributes)
netcdf_putAtt(ncid,varid,v.Attributes(j).Name,v.Attributes(j).Value);
end
% define chunk size
if isfield(v,'ChunkSize')
if ~isempty(v.ChunkSize)
netcdf_defVarChunking(ncid,varid,'chunked',v.ChunkSize);
end
end
% define compression
shuffle = false;
deflatelevel = 0;
if isfield(v,'Shuffle')
if ~isempty(v.Shuffle)
shuffle = v.Shuffle;
end
end
if isfield(v,'DeflateLevel')
if ~isempty(v.DeflateLevel)
deflatelevel = v.DeflateLevel;
end
end
if shuffle && defaltelevel != 0
deflate = defaltelevel != 0;
netcdf_defVarDeflate(ncid,varid,shuffle,deflate,deflatelevel);
end
% define fill value
if isfield(v,'FillValue')
if ~isempty(v.FillValue)
% leave nofill setting unchanged
[nofill,fillval] = netcdf_inqVarFill(ncid,varid);
netcdf_defVarFill(ncid,varid,nofill,v.FillValue);
end
end
% define checksum
if isfield(v,'Checksum')
if ~isempty(v.Checksum)
netcdf_defVarFletcher32(ncid,varid,v.Checksum);
end
end
end
% groups
if isfield(s,'Groups')
if ~isempty(s.Groups)
for i=1:length(s.Groups)
g = s.Groups(i);
gid = netcdf_defGrp(ncid,g.Name);
write_group(gid,g);
end
end
end
end
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