You have a line of text with a bunch of numbers and 3 decimal places and no spaces or commas to tell where one number stops and the other starts. How would you do it? I guess what I would do is to read a line with fgetl() and then replace any string of seven zeros with a comma. Then use sscanf() or textscan() to turn that into 3 numbers. Here's one way that will work:
% For each line of the file.....
thisLine = fgetl(fid);
%thisLine = '42.5000000010.0000000.000000000'; % Test line.
fixedLine = strrep(thisLine, '.000000000', '.0')
fixedLine = strrep(fixedLine, '0000000', ', ')
xyz = sscanf(fixedLine, '%f, %f, %f')
% Scan and enter/append into our array.
x(lineCounter) = xyz(1);
y(lineCounter) = xyz(2);
z(lineCounter) = xyz(3);
See the help for fgetl() to see how to open a file and extract a line at a time from it. Of course your first line you'll just throw away since we don't need the word "NODES".
