Export figure using print with variable as the file name

Question

Miraboreasu 2023-1-6

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1889777-export-figure-using-print-with-variable-as-the-file-name

评论： Miraboreasu 2023-1-8

采纳的回答： Adam Danz

在 MATLAB Online 中打开

x1=1:1:1000;

check = rand(1000,35);

cmap = hsv(5);

for K = 1 : 5

thiscolor = cmap(K,:);

figure

for J = K:5:35

plot(x1,check(:,J), '-o','color', thiscolor);

grid on

grid minor

hold on

end

set(gca,'fontweight','bold','FontSize',25)

print(gcf,'E%d.png',K,'-dpng','-r600'); %Here is the problem

end

How to export the figure with K as the variable

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Answer 1

Adam Danz 2023-1-6

2
链接

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https://ww2.mathworks.cn/matlabcentral/answers/1889777-export-figure-using-print-with-variable-as-the-file-name#answer_1143132

编辑：Adam Danz 2023-1-7

在 MATLAB Online 中打开

Use exportgraphics (or another function export function, if needed) and define the filename using sprintf.

Example:

fig = figure(); 
% do your plotting here
filename = sprintf('E%d.png', k);
exportgraphics(fig,filename,'Resolution',600)

Alternatively,

filename = string(k);

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Miraboreasu 2023-1-8

Thank you so much!

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Answer 2

Adam 2023-1-6

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1889777-export-figure-using-print-with-variable-as-the-file-name#answer_1143182

The problem with this code is that the print function is not being used correctly. The first argument to print should be the file name to save the plot to, but in this case it is the handle to the figure object that is being plotted. The file name should be specified as the second argument, using the '-f' option.

To fix the problem, you can change the line

print(gcf,'E%d.png',K,'-dpng','-r600');

TO

print('-f','E%d.png',K,'-dpng','-r600');