Clean/Repair .eps PostScript vector files created by Matlab R2016b
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Stefan Spelitz
Latest commit 41547e2 Apr 12, 2018

README.md

Fixing Matlab Vector Graphics Output

Clean/Repair .eps PostScript vector graphic files created by Matlab R2016b and Matlab R2017a. (Not working with R2017b and later versions (yet)).

  • Paths are grouped together according to their properties
  • White line artifacts are fixed
  • Broken up polylines are connected back together if they share the same properties (good for post-processing in Illustrator/Inkscape/etc.)
  • Adjacent polygons of the same type are merged together (use parameter 'combineAreas')

Related

Example

Here is an example of what the .eps file looks before and after fixing it:

%%% Matlab Code
z = peaks;
contourf(z);
print(gcf,'-depsc','-painters','out.eps');
epsclean('out.eps'); % cleans and overwrites the input file

Before and After Layer count in Adobe Illustrator: 789 (before) vs. 30 (after)

Another Example

%%% Matlab Code
[X,Y,Z] = peaks(100);
[~,ch] = contourf(X,Y,Z);
ch.LineStyle = 'none';
ch.LevelStep = ch.LevelStep/10;
colormap('hot')
saveas(gcf, 'out.eps', 'epsc');
epsclean('out.eps'); % cleans and overwrites the input file

Before and After Layer count in Adobe Illustrator: 11,775 (before) vs. 76 (after)

Notes

  • If you experience Z-order problems (i.e. the overlappings of your graphics change) try using parameter 'groupSoft' = true.
%%% Matlab Code
epsclean('out.eps','groupSoft',true);
%%% Matlab Code
epsclean('out.eps','closeGaps',true);
  • Have a look at the tests/cleantest.m script for test cases and examples
  • Report any problems here at github with your examples (code or .eps file). I try my best to fix them