plotting multiple figures with auto naming
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I have a folder with multiple txt files that I want to print into separate figures. How can I load, plot, and print each figure with the same file name without naming them manually each time?
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Image Analyst
2022-12-25
Is this what you want to do?
% Get a list of all txt files in the current folder.
fileList = dir('*.txt')
numFiles = numel(fileList)
% Create a figure for each file.
for k = 1 : numFiles
% Build the string you want to display in the titlebar of the figure.
thisFileName = sprintf('File #%d of %d = %s', k, numFiles, fileList(k).name)
% Create a figure and make the title bar have that string.
hFig(k) = figure('Name', thisFileName, 'NumberTitle','off');
% Now do stuff with thisFileName, like plot it or whatever
end
4 个评论
Mohammed Alhamdan
2022-12-26
Image Analyst
2022-12-26
编辑：Image Analyst
2022-12-26
I think this should work:
clc; % Clear the command window.
close all; % Close all figures (except those of imtool.)
clear; % Erase all existing variables. Or clearvars if you want.
workspace; % Make sure the workspace panel is showing.
format long g;
format compact;
fontSize = 20;
% Get a list of all txt files in the current folder.
fileList = dir('*.txt')
numFiles = numel(fileList)
% Create a figure for each file.
for k = 1 : numFiles
% Build the string you want to display in the titlebar of the figure.
thisFileName = sprintf('File #%d of %d = %s', k, numFiles, fileList(k).name)
% Create a figure and make the title bar have that string.
hFig(k) = figure('Name', thisFileName, 'NumberTitle','off');
% Now do stuff with thisFileName, like plot it or whatever
A = load(thisFileName) % A is a structure here.
% Extract from structure into vectors.
t = A.x;
y1 = A.y;
y2 = A.z;
figure;
plot (t, y1, 'LineWidth',1, 'Color', [0 0.4470 0.7410])
hold on
plot (t, y2, 'LineWidth',1, 'Color', [0.6350 0.0780 0.1840])
caption = sprintf('Data from %s', thisFileName);
title(caption)
xlabel('Time')
ylabel('Delta (units)')
[folder, baseFileNameNoExt, ext] = fileparts(thisFileName);
outputFileName = fullfile(folder, [baseFileNameNoExt, '.png']);
fprintf('Writing %s\n', outputFileName);
% print(gcf,outputFileName,'-dpng','-r600');
exportgraphics(gcf, outputFileName);
end
Make sure you're extracting the correly named field from the "A" structure or else it won't work.
Mohammed Alhamdan
2022-12-27
编辑：Mohammed Alhamdan
2022-12-27
Thank you this helped. I used it to write the following and it worked
clc;
close all;
clear;
workspace;
format long g;
format compact;
fontSize = 20;
fileList = dir('*0001.txt')
numFiles = numel(fileList)
for k = 1 : numFiles
FileName = sprintf('%s', fileList(k).name)
A = load(FileName);
figure;
title(FileName);
xlabel('Time delay (ps)')
ylabel('delta T/ T (arb .unit)')
hold on
plot (A(:,1),A(:,2), 'LineWidth',1, 'Color', [0 0.4470 0.7410])
plot (A(:,1),A(:,3), 'LineWidth',1, 'Color', [0.6350 0.0780 0.1840])
print(gcf, fileList(k).name+".png");
end
now my only problem is with [ title(FileName) ]. My files names contain underscores ( _ ) instead of spaces (for example: Data_22-12-23_1534_0001.txt), and this create small letter after each underscore on the title on my figure. is there a solution for it?
screenshot of title on figure:
Image Analyst
2022-12-27
Use the 'Interpreter' 'none' option
title(FileName, 'Interpreter', 'none', 'FontSize', 20);
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