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function writebin(fnam,fld,typ,prec,skip) |
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|
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% Function writebin(fnam,fld,typ,prec,skip) |
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% write N-D binary field |
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% |
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% INPUTS |
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% fnam input path and file name |
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% fld input array |
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% typ 0: sequential FORTRAN; 1: plain binary (the default) |
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% prec numeric precision (default 'real*4') |
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% skip records to skip before writing (default 0) |
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% |
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% SEE ALSO |
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% readbin |
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|
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if nargin < 5, skip=0; end |
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if nargin < 4, prec='real*4'; end |
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if nargin < 3, typ=1; end |
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if skip>0 & typ==0, error('feature not implemented yet'); end |
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if nargin < 2, error('please specify array and output file name'); end |
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reclength=0; |
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|
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if exist(fnam)==2 |
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fid=fopen(fnam,'r+','ieee-be'); |
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else |
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fid=fopen(fnam,'w','ieee-be'); |
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end |
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|
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switch typ |
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|
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case 0 |
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|
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write_record(fid,fld,prec); |
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|
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case 1 |
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|
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if skip==0 |
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|
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fwrite(fid,fld,prec); |
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|
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else |
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|
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switch prec |
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case {'int8','integer*1'} |
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reclength=prod(size(fld)); |
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case {'int16','integer*2','uint16','integer*2'} |
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reclength=2*prod(size(fld)); |
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case {'int32','integer*4','uint32','single','real*4','float32'} |
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reclength=4*prod(size(fld)); |
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case {'int64','integer*8','uint64','double','real*8','float64'} |
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reclength=8*prod(size(fld)); |
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end |
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|
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if fseek(fid,skip*reclength,'bof') == 0 |
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|
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fwrite(fid,fld,prec); |
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|
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else |
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|
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fseek(fid,0,'eof'); |
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file_length=ftell(fid); |
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fwrite(fid,zeros((skip*reclength-file_length),1),'int8'); |
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fwrite(fid,fld,prec); |
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|
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end |
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|
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end |
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|
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end |
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|
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fid=fclose(fid); |
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