device, filename='test.eps', /encapsulated
The 'test.eps' file that is created does contain the plot data, but:
1) it is aggressively cropped, missing more than half of the plot (lower right corner is ok, but not the others),
2) it is rotated clock wise by 90°.
Converting the file to .pdf (with 'epstopdf') fixes problem 1), but not 2).
I think what I experiment is very similar to bug #3304932, but this report is closed and supposedly fixed since 2011.
I am using the latest CVS version of GDL.