matlab-epsclean's Introduction

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')

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

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

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);

If you have separating lines between filled areas (example - gaps highlighted in yellow) try using parameter 'closeGaps' = 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

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