read .txt file data with data between specific lines "string" .
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I want to read data between ( strings ) line starting from " *Node " and
ending at and next (strings ) line " *Element, type=C3D4" .
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Star Strider
2019-6-27
The textscan function using a numeric format descriptor string will automatically stop when it encounters:
*Element, type=C3D4
so this is actually a straightforward problem:
fidi = fopen('Copy_of_Job-1.txt','rt');
D = textscan(fidi, '%f%f%f%f', 'HeaderLines',9, 'Delimiter',',', 'CollectOutput',1);
fclose(fidi);
with ‘D’ being a (1418x4) double matrix.
7 个评论
Star Strider
2019-6-27
With only two sections, and changing lines of text and changing format, your file needs specific and different textscan calls for the two sections:
fidi = fopen('Copy_of_Job-1.txt','rt');
D{1} = textscan(fidi, '%f%f%f%f', 'HeaderLines',9, 'Delimiter',',', 'CollectOutput',1);
txtline = fgets(fidi);
D{2} = textscan(fidi, '%f%f%f%f%f', 'Delimiter',',', 'CollectOutput',1);
fclose(fidi);
D1 = cell2mat(D{1}); % First Section
D2 = cell2mat(D{2}); % First Section
with ‘D1’ being a (1418 x 4) double, and ‘D2’ being a (6584 x 5) double.
Different files with different requirements would of course require different code.
jahanzaib ahmad
2019-6-27
编辑：jahanzaib ahmad
2019-6-27
jahanzaib ahmad
2019-6-27
jahanzaib ahmad
2019-6-27
编辑：jahanzaib ahmad
2019-6-27
Star Strider
2019-6-27
I am not certain what you are asking. I believe the code I posted in my Comment will do what you want.
If your file format remains the same, my code will work with all your files.
jahanzaib ahmad
2019-6-27
Star Strider
2019-6-27
As always, my pleasure.
I appreciate your compliment.
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