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Posted to issues@openoffice.apache.org by bu...@apache.org on 2014/01/20 00:58:08 UTC
[Bug 124060] New: gradient gets white lines in metafile
https://issues.apache.org/ooo/show_bug.cgi?id=124060
Bug ID: 124060
Issue Type: DEFECT
Summary: gradient gets white lines in metafile
Product: Draw
Version: 4.1.0-dev
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: viewing
Assignee: issues@openoffice.apache.org
Reporter: rb.henschel@t-online.de
CC: issues@openoffice.apache.org
Created attachment 82320
--> https://issues.apache.org/ooo/attachment.cgi?id=82320&action=edit
Gradients original, metafile and bitmap
Open the attached file. Show it in presentation mode. Notice the white lines,
especially in 16 steps.
Export the file to pdf. Notice the white lines in the exported pdf. How many
lines are shown, depends on the zoom level in the pdf reader.
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[Issue 124060] gradient gets white lines in metafile
Posted by bu...@apache.org.
https://issues.apache.org/ooo/show_bug.cgi?id=124060
Armin Le Grand <Ar...@me.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|CONFIRMED |RESOLVED
Resolution|--- |DUPLICATE
--- Comment #5 from Armin Le Grand <Ar...@me.com> ---
Same effect as already described in #93417#, setting to duplicate
*** This issue has been marked as a duplicate of issue 93417 ***
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[Bug 124060] gradient gets white lines in metafile
Posted by bu...@apache.org.
https://issues.apache.org/ooo/show_bug.cgi?id=124060
--- Comment #3 from Edwin Sharp <el...@apache.org> ---
Created attachment 82324
--> https://issues.apache.org/ooo/attachment.cgi?id=82324&action=edit
pdf screenshot
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[Bug 124060] gradient gets white lines in metafile
Posted by bu...@apache.org.
https://issues.apache.org/ooo/show_bug.cgi?id=124060
Edwin Sharp <el...@apache.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |CONFIRMED
CC| |elish@apache.org
Latest|--- |4.1-dev
Confirmation on| |
Ever confirmed|0 |1
--- Comment #1 from Edwin Sharp <el...@apache.org> ---
Confirmed with
AOO410m1(Build:9750) - Rev. 1557669
2014-01-14_04:11:13 - Rev. 1557927
Debian
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[Bug 124060] gradient gets white lines in metafile
Posted by bu...@apache.org.
https://issues.apache.org/ooo/show_bug.cgi?id=124060
--- Comment #2 from Edwin Sharp <el...@apache.org> ---
Created attachment 82323
--> https://issues.apache.org/ooo/attachment.cgi?id=82323&action=edit
slide show screenshot
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[Bug 124060] gradient gets white lines in metafile
Posted by bu...@apache.org.
https://issues.apache.org/ooo/show_bug.cgi?id=124060
Armin Le Grand <Ar...@me.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |Armin.Le.Grand@me.com
Assignee|issues@openoffice.apache.or |Armin.Le.Grand@me.com
|g |
--- Comment #4 from Armin Le Grand <Ar...@me.com> ---
It's not white lines, but anti-aliasing gaps. These happen when the format the
user/exporter is based on uses Metafiles, but without using the "enhanced
(hacked)' data included there e.g. for gradients. If this data is not used but
the original Metafile data, it contains a pretty wild (from nowadays view)
combination of X-ORed paints of polygons that was used in former days to render
that gradients. When that X-ORed paints get executed 1:1 they generate that
errors since that painitg technique of a gradient is of course not capable of
AA.
With PDF it's similar; the adobe reader is bad with blending AAed stacked
polygons above each other; the representation in the PDF is in principle
correct (AFAIK).
Grepping, this needs work in the future. Best would be to change the exporters
to primitive renderers, though...
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