Help with fopen and fread in a loop

Question

Marnie 2015-5-13

0
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https://ww2.mathworks.cn/matlabcentral/answers/216474-help-with-fopen-and-fread-in-a-loop

编辑： Walter Roberson 2015-5-13

I have been trying to open to open some bin files for Pressure and read their values into a 202 x 122 matrix then make a heat map of them. This is proving simple enough individually but I'm trying to read 101 of these files and I can get them opened easy enough but I can't get them to read...... what code should I be using for my fread function to go through each step?

for i = 0:101
fid = fopen(sprintf('P_0%i.bin',i));
P = fread(????????, [202 122])
HMobj = HeatMap(P)
end

The files are P_00.bin, P_01.bin, P_02.bin etc etc

Thankyou

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Answer 1

Walter Roberson 2015-5-13

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https://ww2.mathworks.cn/matlabcentral/answers/216474-help-with-fopen-and-fread-in-a-loop#answer_178899

编辑：Walter Roberson 2015-5-13

在 MATLAB Online 中打开

P = fread(fid, [202 122]);
fclose(fid);

Don't forget to save all of your HeatMap objects, or pause() or drawnow(), so that the user has a chance to see them. Graphics are not updated until you reach the command line or until pause() or drawnow() are called.