How can I set the file name as my title name in a subfolder for numerous plots

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Vlatko Milic 2018-5-23

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评论： Ameer Hamza 2018-5-24

采纳的回答： Stephen23

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Hi,

I am trying to set the title name (that varies depending on the plot) as the file name in a subfolder. I get the error code: Error using sprintf. Function is not defined for 'cell' inputs.

So there is some mistake with my syntax. I have tried different approaches but I don't get it to work. My code is as follows:

figure Timestep=(1:length(d_f_t(:,1)))'; plot(Timestep,W_per_K_serie, '*'); title(['Byggnad', subfolderNames(b)])

folder_path='PathXXX';

saveas(fullfile(folder_path, sprintf('%s.jpg',get(get(gca,'title'),'string'))));

Does anybody have any advice? Thank you in advance

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Paolo 2018-5-23

编辑：Paolo 2018-5-23

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I tried your code as follows:

 figure
 title(['Byggnad'])
 folder_path='PathXXX';
 mkdir(folder_path);
 saveas(gca,fullfile(folder_path, sprintf('%s.jpg',get(get(gca,'title'),'string'))));

And it works fine for me. You must specify the handle to the figure when using saveas.

Vlatko Milic 2018-5-23

Hi,

It doesnt't work still unforuntately. My error is now:' Error using saveas. Invalid handle'.

The code looks as follows:

folder_path='XXXXX'; mkdir(folder_path);

tmp = char(get(get(gca,'title'),'string')); saveas(fighandle, fullfile(folder_path, sprintf('%s.jpg', tmp)));

It is noteworthy that my title changes name for every loop I'm performing. However, this should not affect the result? Thank you in advance.

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Stephen23 2018-5-23

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编辑：Stephen23 2018-5-24

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The title 'String' property may be a cell array, string array, or a char vector. You can easily convert this into a char vector:

tmp = char(get(get(gca,'title'),'string'));
saveas(figH, fullfile(folder_path, sprintf('%s.jpg',tmp)));

I would recommend that you avoid gca, gcf, etc., and always obtain and use explicit graphics handles for all graphics objects that you need to refer to.