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Problem using print('-dpng', '-r300', 'file.png') to write plot to disk in PNG format

19 vues (au cours des 30 derniers jours)
Eduardo Sanchez
Eduardo Sanchez le 16 Oct 2017
Commenté : Looky le 16 Oct 2017
Here's the chunk of code:
FigHandle = figure('Position', [100, 100, 1920, 700]);
subplot(121);
imagesc(X, Z, final_model_it_xz);
hold on;
set(line([17,33,33,17,17]*200 - 200, [12,12,13.5,13.5,12]*200 - 200), 'linewidth', 2, 'color', 'w');
hold off;
grid on;
set(gca, 'linewidth', 1, 'fontsize', 12);
h = colorbar();
set(get(h, 'title'), 'string', 'S$\cdot$ m$^{-1}$', 'fontsize', 12, 'interpreter', 'latex');
xlabel('Inline [m]', 'fontsize', 14, 'interpreter', 'latex');
ylabel('Depth [m]', 'fontsize', 14, 'interpreter', 'latex');
title_str = sprintf(['$\\mathbf{m}_{%d}$ at %g m without regularization',...
' with $\\min(\\mathbf{m}_{%d}) = %g$'], it, Y(iy), it, min_conductivity_it);
title(title_str, 'fontsize', 14, 'interpreter', 'latex');
print('-dpng', '-r300', [plot_folder,'modelYZ']);
subplot(122);
imagesc(Y, Z, final_model_it_yz);
hold on;
set(line([17,33,33,17,17]*200 - 200, [12,12,13.5,13.5,12]*200 - 200), 'linewidth', 2, 'color', 'w');
hold off;
grid on;
set(gca, 'linewidth', 1, 'fontsize', 12);
h = colorbar();
set(get(h, 'title'), 'string', 'S$\cdot$ m$^{-1}$', 'fontsize', 12, 'interpreter', 'latex');
xlabel('Crossline [m]', 'fontsize', 14, 'interpreter', 'latex');
ylabel('Depth [m]', 'fontsize', 14, 'interpreter', 'latex');
title_str = sprintf(['$\\mathbf{m}_{%d}$ at %g m without regularization',...
' with $\\min(\\mathbf{m}_{%d}) = %g$'], it, X(ix), it, min_conductivity_it);
title(title_str, 'fontsize', 14, 'interpreter', 'latex');
print('-dpng', '-r300', [plot_folder,'modelXZ']);
Here's what I see in the graphics windows:
Here's what ends up stored in my computer:
I am using:
>> version
ans =
8.5.0.197613 (R2015a)
Any hints?
Also, when I use the Save as... dialog from the figure viewer:
I get a perfect result:
  7 commentaires
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Eduardo Sanchez
Eduardo Sanchez le 16 Oct 2017
Using https://es.mathworks.com/help/matlab/ref/saveas.html did not work either.
Looky
Looky le 16 Oct 2017
Have you tried change the PaperPosition via FigHandle.paperPosition=[ ]; Within the brackets you specify the position and size just like you do in your first line. However the units are in inch!

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Eduardo Sanchez
Eduardo Sanchez le 16 Oct 2017
I had tried: FigHandle.PaperPosition=[100,100,1920,700 ]; --- Seg faulted.
However, I tried this following Looky's advise:
fig = gcf;
fig.PaperPositionMode = 'auto';
print(gcf, [plot_folder,'modelXZ'], '-dpng');
Solved the problem.
  1 commentaire
Looky
Looky le 16 Oct 2017
Great. Just a little note. Like I said, PaperPosition is in inch (not in Pixel). That's why you got this nasty segmentation fault.
Have a good one

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