exctract data from 50 curves in .fig

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I have a x-y plot including almost 50 curves.
I can extract the data for the single curve, but I get error if I use the 'for '. Indeed the final file is a collection of zeros
clear all;
close all;
clc;
fig=openfig('*.fig');
for i=1:50
dataObjsY = findobj(fig,'-property','YData');
yi = dataObjsY(i).YData;
dataObjsX = findobj(fig,'-property','XData');
xi= dataObjsX(i).XData;
A=[];
A(:,i)=xi;
A(:,i)=yi;
dlmwrite('datatoday.txt',A,',');
end

Accepted Answer

Star Strider
Star Strider on 30 Jul 2022
The argument to openfig should be a single .fig file, so supply the appropriate information for ‘filename’ here.
Other than that, this should work —
fig=openfig('filename.fig');
Ax = gca;
Lines = findobj(gca, 'Type','Line');
for k=1:numel(Lines)
xv{k} = Lines{k}.XData;
yv{k} = Lines{k}.YData;
end
Assigning them to cell array elements is necessary because they may not all be differnt sizes or orientatioons.
Make appropriate changes to work with your files.
.
  4 Comments
Star Strider
Star Strider on 30 Jul 2022
My pleasure!
If my Answer helped you solve your problem, please Accept it!
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