Save a created .gif into defined file location

Question

David 2014-8-18

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/151317-save-a-created-gif-into-defined-file-location

评论： Guillaume 2014-8-18

采纳的回答： Guillaume

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Hi,

So I have some code that runs though some saved data, processes it, and creates a gif, as shown below;

OUTPUT_FILE

for count = 1:50;
      %various code for loading and processing data
      ......
      ......
      ......
      ......
      %create figures for each file
      data_figure = figure('Visible','off');
      axes1 = axes('Parent', data_figure, 'ZGrid', 'on', 'YGrid', 'on');
      view(axes1,[0.5 90]);
      xlim(axes1,[-0.01 0.25]);
      hold(axes1, 'all');
      surf(data_A,data_B,data_C, 'Edgecolor', 'none');
      colorbar;
      title('......');
      xlabel('......');
      ylabel('......');
      set(gca, 'XGrid', 'off');
      ylabel(colorbar, '.....');
      %save images in OUTPUT_FILE
      saveas(gcf, fullfile(OUTPUT_FILE, [num2str(count),'.png']));
      %create gif
      drawnow;
      frame = getframe(data_figure);
      im = frame2im(frame);    
      [AA,map] = rgb2ind(im,256);
      if count == 1,
      imwrite(AA,map,gif_name,'gif','LoopCount',Inf,'DelayTime',0.5);
    else
      imwrite(AA,map,gif_name,'gif','WriteMode','append','DelayTime',0.5);
      end
end

How do I set it to save the gif into the OUTPUT_FILE location, as I have done with the individual images?

Thanks

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Answer 1

Guillaume 2014-8-18

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https://ww2.mathworks.cn/matlabcentral/answers/151317-save-a-created-gif-into-defined-file-location#answer_148934

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Assuming that OUTPUT_FILE contains the full path of the file, and gif_name is just a filename,

path = fileparts(OUTPUT_FILE);
gif_name = fullfile(path, gif_name);

If gif_name also contains a path that you want to discard:

[~, gif_filename, gif_extension] = fileparts(gif_name);
gif_name = fullfile(path, [gif_filename '.' gif_extension]);

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David 2014-8-18

didn't work when i used the path variable, yet worked putting the gif_name and output_file variable directly into fullfile. thanks!

Guillaume 2014-8-18

Well, this assumed that OUTPUT_FILE was actually path + file name prefix of the png files you write. If it's just a path, then fileparts is wrong (and you should rename the variable to OUTPUT_PATH).

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