Comments and Ratings

Absolutely awesome!! If only I had found this sooner!! Thanks for sharing!
How can I increase the resolution? The -m option increases the file size, not the resolution.

Bob:
set(gcf, 'color', 'none'); % Set the figure background to transparent
set(gca, 'color', 'none'); % Set the axes background to transparent

Hi Oliver.

I don't understand what happens when a colour map with more than 256 elements is requested. I'm trying to create a jet colour map with 1024 elements to display a 10 bit image using the image function. If I do this using either your version of jet or the Matlab one, I get the same result - all blue! 512 creates blue and green strips. 300 elements gives the normal jet colour map between 0 and 255, then it looks like it starts over again from blue. This is not what I would expect - values lower than 256 correctly fit the full colour range into the number of colour map entries requested - I don't see why this should be any different for larger colour maps.

The work around I'm using is to use pcolor instead of image to plot the data, as this seems to work with a smaller (presumably 256 element) colour map and map the data onto this. While this works, I don't like the pcolor function very much. It's not intended for displaying images. The axes labels align with grid lines instead of pixels, the data cursor selects points instead of pixels, and I need to have an extra row and column of data.

Is there a way of getting a 1024 element colour map that behaves as would be expected?

Thanks!
Richard.

My graphics driver was out of date. Since I updated the driver, everything work perfectly. Thanks!

I'm having trouble printing to png format, the figures come out completely black. I'm using MATLAB version 2008b. The command I'm using is "export_fig filename -png".

Thanks for any advice.

Great script. It's driven me nuts for a long time that outputting to pdf in Matlab is a headache.

It would be useful if there was an 'append' option for the pdf output. I don't always want to append to the end of a file, often I just want to update a figure and have it overwrite whatever was already there.

Hi Oliver,

thanks for your reply.
I only use ttf fonts at the moment.

I tried your first suggestion, but nothing changed. I now use the options

options = [options '-q -dNOPAUSE -dBATCH -sDEVICE=pdfwrite -dPDFSETTINGS=/prepress -sOutputFile="' dest '" -sFONTPATH="C:/Windows/Fonts"'];

Obviously gs doesn't know the fonts except for the standard ones.

I also tried to set the path:

c:\> SET GS_LIB=c:\windows\fonts

And I tried to add fonts to gs/fonts/fontmap (using FontMap v1.7), e.g. the line

/Coronet (C:/WINDOWS/FONTS/coronet.ttf) ;

But all I can see in the pdf file is this Courier font.

Any other ideas? Did anyone successfully export other fonts to pdf?

Stefan

Hi,

not each font is exported correctly on my system.

Ex:
plot((0:10),sin(0:10));
set(gca,'FontName','Arial Black');
export_fig('test', '-pdf');

The font is not 'Arial Black' in this example, although beeing correctly displayed in Matlab.

I'm using winXP, Matlab 7.8.0 (R2009a), Ghostscript 8.70, Adobe Reader 9.2.0. I tried some other fonts, only 'Arial' seems to work properly.

Is this behavior reproducible on your systems or is a solution available?

Thanks for your help!
Stefan

Michael: MATLAB's print often does funny things to a plot, such as changing the number of tick marks, when you export it, and I don't know how to avoid it. Export_fig uses print, and therefore unfortunately suffers from the same problem.

Thanks Julian. To be correct, I should say that every directory except the bottom level file or directory must exist. I.e. only the bottom level directory is allowed to be non-existant.

Hi

What is the calling sequence for using this function? should the filename be in parentheses? are the output formats the same as used by matlap e.g. -depsc?

Many thanks!

Justin - if you prefer the image displaying properties of imagesc I suggest you use image(sc(X)). However, you then don't get the correct colorbar. If it's just the aspect ratio you don't like then call set(gca, 'DataAspectRatioMode', 'auto') after sc.

I'm trying to use this function with Matlab r2007b on a Mac (OS 10.5), and I get the error:

??? Error using ==> rdivide
Number of array dimensions must match for binary array op.

Error in ==> export_fig at 143
        A = uint8(B ./ A(:,:,[1 1 1]));

Any insight?

Cheers!

Great function! It saves me a lot of time, thanks!
Wish I could disable cropping more easily though.

how do you export the image with a greater value of dpi?
-r600 does not work

Nice!

How can I get a high resolution eps, e.g., >300dpi? Matlab's documentation says to use the -r option, e.g.,
  print -deps -r300 myfile
but it actually doesn't work. When I look at the produced eps in a software such as Adobe Photoshop the resolution is just 72dpi. Thanks for you input!

Great work! You sir saved me a LOT of time.

I've been using your print_eps function for a while and found this today. However, I have a problem with converting images to eps format that has been bugging me. For example, I have two images in a matlab figure. On both images I have used the "plot" function to plot some lines on the images. The plotted lines are gray in color. When I export them into eps format, the lines on the first image would remain gray. But the lines on the second image would change to black. The same thing happens when I have more than two images with plotted lines, in which case all the plotted lines except in the first image will turn black. I was wondering if you can shed some light on this?

Thanks a lot.

i fixed the dashed line in my eps figure after running this function...

Not compatible with R13 (6.5.0). Gives the following error in the file 'print_pdf.m' on line 128:

??? Error using ==> regexp
Invalid option for regexp: start.

Any ideas?

Dan: Currently the only way to change the exported figure size is to change the Matlab figure size before exporting. To get round this, set the paper size options manually within export_fig.

Matt C: Thanks for the great suggestion.

Shameem/Mohammed: I wanted to keep the interface simple, so unfortunately there is no formal way to control file size. Jpeg file size can be changed by varying the quality setting within export_fig. For more options regarding quality/compression, see savefig (also on the FEX).