Obtain a New line in a buffer

Hi,

I have a mesh file name "conesphere", and it contains some numbers like this:

$Nodes

5

1 3.306 0 0

2 2.9754 0 0

3 2.9754 1.356193216322807 0

4 2.9754 0.9589734198610512 0.9589734198610511

5 2.9754 8.304014148598576e-17 1.356193216322807

$EndNodes

So, I am trying to have these numbers in the same order (without $Nodes and $EndNodes words) like this:

1 3.306 0 0

2 2.9754 0 0

3 2.9754 1.356193216322807 0

4 2.9754 0.9589734198610512 0.9589734198610511

5 2.9754 8.304014148598576e-17 1.356193216322807

However, when I use the code as shown in below, I am getting this result, and it seems like I have a new line issue:

1 3.306 0 02 2.9754 0 03 2.9754 1.356193216322807 04 2.9754 0.9589734198610512 0.95897341986105115 2.9754 8.304014148598576e-17 1.356193216322807

 if true
    % fid = fopen('conesphere.msh', 'rt');
s = textscan(fid, '%s', 'delimiter', '\n');
idx1 = find(strcmp(s{1}, '$Nodes'), 1, 'first');
idx2 = find(strcmp(s{1}, '$EndNodes'), 1, 'first');
buffer  = s{1}(idx1+2:idx2-1);
dataTxt = sprintf('%s\n',buffer{:});
fileID = fopen('nodes.txt','w');
fprintf(fileID,dataTxt);
fclose(fileID);
  end

Answer 1

[Walter Roberson]

I suggest you use fileread() to read in the exact file as a continuous string. You can use strfind to get the location of interest and extract the substring and fwrite it to a file.