Pattern
A black stroked rectangle uses a pattern for fill
consisting fo two coloured circles and rectangles.
The pattern is surprisingly blurred with Opera9tp1/2
without using any filter!
The pattern is referenced with use elements too
for comparison in the background.
Not finally clarified here:
The positions for the use elements fits in
the Adobe plugin - are they correct?
I think they are correct in the Adobe plugin and
shifted and maybe scaled in Opera9tp1/2.
This group is used both as the pattern and as a reference
for the use elements.
with use simulated pattern in the background
These use elements reference the same group as pattern to
generate the same pattern at the same position, but not just in the
black stroked rectangle, beyond the stroke the group becomes visible
for comparison.
This rectangle is just used to have a white background for the
following rectangle with a pattern
The black stroked test rectangle with a pattern for fill.