PDF export does not use the highest quality for rasterized filters

Bug #322116 reported by RIco on 2009-01-27
Affects Status Importance Assigned to Milestone

Bug Description

when you export a pdf, and select the option "rasterise filter effects", the quality of the rasterised effect is linked the quality of display of filter effects/gaussian blur in the Inkscape preferences.

As I understand this option should be only for the display inside Inkscape, and the pdf should be exported to the maximum quality.
But if (for ex.) your "Filter effects quality for display" in the preferences is set to Average, or lower ... this becomes the quality of output of the rasterised effect in the pdf.

is it a bug or did i miss something?

( Inkscape svn r20576 on ubuntu 8.10)

theAdib (theadib) wrote :

the cairo exporter uses the Display resolution here (that is set in the inkscape properties dialogue - options/filterquality/value)

Changed in inkscape:
importance: Undecided → High
milestone: none → 0.47
status: New → Confirmed
tags: added: cairo exporting filter
removed: import-export
Changed in inkscape:
importance: High → Medium
theAdib (theadib) on 2009-04-28
Changed in inkscape:
assignee: nobody → theadib
theAdib (theadib) wrote :

attached patch puts render quality properties to nr_arena. Previously each nr_arena_item looked up the preferences.
You can do now "nr_arena_set_renderoffscreen(arena)" for an offscreen arena in order to get highest accuracy.

please review!


theAdib (theadib) wrote :

I committed fix in revision 21272.
The renderoffscreen attribute need to be set on all other file formats that use nr_arena as well.
RIco please check and report if that solve your problem!

Changed in inkscape:
status: Confirmed → Fix Committed

no, that doesn't fix the problem,
I just compiled 21274, set the filter quality to lowest, saved as pdf.. and the pdf was exported at lowest quality.

theAdib (theadib) wrote :

could you please provide the svg? Thx, Adib.

theAdib (theadib) wrote :

Filters are represented while generating bitmaps.
Add nr_arena_set_renderoffscreen to sp_generate_internal_bitmap.
fixed in revision 21276.
Rico, pls check.

ok, now the pdf is exported correctly. thanx theAdib.

theAdib (theadib) on 2009-05-04
Changed in inkscape:
status: Fix Committed → Fix Released
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