Exporting a figure with an opaque legend box but no visible edge

I want to make a figure whose legend has no visible border (so I set the legend edge colour to be white), but has an opaque background (so I do not turn the legend box off). Using the following code I can achieve this:

% Generate some data to plot
fakeXData  = linspace(0,2*pi,100);
fakeYData1 = sin(fakeXData);
fakeYData2 = cos(fakeXData);

% Plot data
clf
plot(fakeXData, fakeYData1, 'r-', 'LineWidth', 2);
hold on
plot(fakeXData, fakeYData2, 'b-', 'LineWidth', 2);

% Legend
Lgd = legend({'Sine Curve','Cosine Curve'});
set(Lgd,'EdgeColor','white');

This successfully produces the figure I would like, as below:

I would then like to export the figure with my specified high resolution (i've used a low quality here for the purpose of uploading). To do this I use the following print command, since saveas outputs with screen resolution:

% Save image
print(gcf,'image','-dpng','-r600');

The figure produced is shown below, where notice the legend's box is back:

If I use saveas(gcf,'image.png') then I have the same issue (and can't control the dpi).

On the other hand, if I use file > saveas the figure is exported properly.

Thanks in advance for any advice on this.

[Thomas Sykes]

I should note this issue also occurs on R2017a (the above graphs came from R2018a), either on Linux or Windows.

[Jan]

See also:

• https://www.mathworks.com/matlabcentral/answers/121912-some-legend-properties-are-reset-to-default-when-printing-figure
• https://www.mathworks.com/matlabcentral/answers/122281-legend-position-command-printing

Does the tip with http://www.mathworks.com/matlabcentral/fileexchange/23629-exportfig work?

Answer 1

[Brendan Hamm]

You can modify this by setting the EdgeColor to none.

 set(Lgd,'EdgeColor','none');

[Thomas Sykes]

Thanks, I didn't think of this - this works.