Filters bounding box create artifacts once printed

[larienna]

Every time I apply a filter, the boundring box of the object becomes large than the object itself. Sometimes the filter effect leak outside the shape of the original object.

Once converted to PDF and then printed, the boundering box of the filter creates artifacts on the edge. There is a copy of a scanned artifact in this thread.

http://www.inkscapeforum.com/viewtopic.php?f=5&t=6357

First, it would be interesting to correct this bug.

Second, one of the way to prevent artifact and prevent the filter from exiting the shape is to clip it to a duplicate of the original shape. This will make sure that for example, a specular light will not lighten objects around the target object. But duplicating and cliping all objects with filters is very time consuming and annoying to do.

So a feature I would like is the possibility to automatically clip the filter to the target object. You could have a check box in the filter editor to enable/disable the clipping and you could have a default option that clips everything or everything except blur (which is so far the only filter I see that you would not want to clip).

[su_v (suv-lp)]

> So a feature I would like is the possibility to
> automatically clip the filter (…)

Please file the feature request separately. Mixing bug reports and feature requests in one ticket make it hard to triage and track any progress.

[Niko Kiirala (kiirala)]

As noted in the inkscapeforum thread, you can include a Composite filter primitive in your filter effect to make sure it doesn't bleed outside the original shape. And you can use the Filter general settings tab to stop it from enlarging the bounding box.

Other than that, this may be the old problem when using Background Image in filter when over non-opaque background or bug #396758 or just plainly an inherent discontinuity when moving from bitmap image to vector image.

If printing straight from Inkscape, you can also use Bitmap rendering backend.

Anyhow, with only that one image as reference, I can't really say anything concrete.