wait bar in MATLAB gui in nested FOR loop

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Aash 2018-5-11

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/400243-wait-bar-in-matlab-gui-in-nested-for-loop

评论： Jan 2018-5-12

I have to show a progress bar in matlab guide that appears while running FOR loop and shows progress for each iteration. Moreover, the user should not be able to close it until the calculation stops, so as to prevent the user from making any changes. Example code is as follows

MBTs = minMBT:stepMBT:maxMBT;
MATs = minMAT:stepMAT:maxMAT;
i=1;
for MAT = MATs
    j = 1;
    for MBT = MBTs
        %some calculations
        j = j + 1;
    end
    i = i + 1;
end

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采纳的回答

Jan 2018-5-11

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/400243-wait-bar-in-matlab-gui-in-nested-for-loop#answer_319789

编辑：Jan 2018-5-11

在 MATLAB Online 中打开

MBTs = minMBT:stepMBT:maxMBT;
MATs = minMAT:stepMAT:maxMAT;
n    = length(MATs) * length(MBTs);
c    = 0;
H    = waitbar(0, 'Please wait...');
for i1 = 1:length(MATs)
  MAT = MATs(i1);
  for i2 = 1:length(MBTs)
     MBT = MBTs(i2);
     %some calculations
       % Update the waitar:
       if ~ishghandle(H)
          error('User closed waitbar.');
       end
       c = c + 1;
       waitbar(c / n, H, sprintf('%d of %d', c, n));
    end
  end

It would be brute to forbid, that the user closes the waitbar. Imagine that the loop runs for 2 hours for unknown reasons. Do you really block a premature stopping? User hate such restrictions for good reasons.