Write binary file in Matlab
6 ビュー (過去 30 日間)
古いコメントを表示
Hello,
I have a binary data generated by Fortran, I am able to read my data:
fid = fopen('inflow.data0000');
sep1=fread(fid,1,'float');
nynzitime=fread(fid,3,'int32');
sep=fread(fid,1,'int32');
RAW_read = fread(fid, 3*n1*n2,'float32');
RAW = reshape(RAW_read, [n1,n2,3]);
fclose(fid);
I need to make some changes in the data and then write it out as a binary file for Fortran.
so I did this:
fileID = fopen('newinflow.data0000')
fwrite(fileID,sep1,'single');
fwrite(fileID,nynzitime,'int32');
fwrite(fileID,sep,'int32');
fwrite(fileID,RAW_read,'float32');
fclose(fileID);
then when Fortran reads the data:
namel='newinflow.data0000'
open(30,file=namel,form='unformatted')
read(30)n2al,n3l
read(30)qal(0:n2al+1,1:n3l,1:3)
close(30)
error message shows "corrupted file". I realized that it is a header/format related issue, but I am not familar with binary file, tried a few different things, no luck yet.
I attached a 'good' binary data, please see if you know how to read and write it properly for Fortran.
Thank you for your time.
0 件のコメント
回答 (2 件)
James Tursa
2019 年 9 月 13 日
Can you read and write as “STREAM” in your FORTRAN compiler? No header stuff to worry about.
Image Analyst
2019 年 9 月 13 日
Maybe try changing the ENDIAN?
4 件のコメント
Image Analyst
2019 年 9 月 14 日
A paste operation shouldn't drop out characters that were copied into the clipboard. You might want to investigate that.
参考
カテゴリ
Help Center および File Exchange で Fortran with MATLAB についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!