Bug 78899 - Anti-aliasing in exported bitmap images not supported
Summary: Anti-aliasing in exported bitmap images not supported
Status: RESOLVED WORKSFORME
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Chart (show other bugs)
Version:
(earliest affected)
4.2.3.3 release
Hardware: Other All
: low enhancement
Assignee: Not Assigned
URL:
Whiteboard:
Keywords:
Depends on:
Blocks: Chart-Enhancements
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Reported: 2014-05-19 09:21 UTC by Aleksey Midenkov
Modified: 2024-08-19 08:31 UTC (History)
2 users (show)

See Also:
Crash report or crash signature:

Attachments
A chart with smooth lines (23.17 KB, application/vnd.oasis.opendocument.spreadsheet)
2024-08-19 08:12 UTC, Mike Kaganski 		Details
The export result (21.25 KB, image/png)
2024-08-19 08:13 UTC, Mike Kaganski 		Details
View All Add an attachment (proposed patch, testcase, etc.)

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Description Aleksey Midenkov 2014-05-19 09:21:57 UTC 
As was mentioned earlier in 60137, there is no anti-aliasing in raster image export. Such functionality is rather unusable!
Comment 1 bfoman (inactive) 2014-05-21 21:49:39 UTC 
Rephrased summary.
Comment 2 Buovjaga 2014-10-31 21:07:01 UTC 
Confirmed.

Win 7 64-bit Version: 4.4.0.0.alpha1+
Build ID: 56019dcb79475606952a954fe732a3109441ffec
TinderBox: Win-x86@39, Branch:master, Time: 2014-10-30_07:27:11
Comment 3 Mike Kaganski 2024-08-19 08:12:55 UTC 
Created attachment 195895 [details]
A chart with smooth lines

I can't repro using Version: 24.8.0.3 (X86_64) / LibreOffice Community
Build ID: 0bdf1299c94fe897b119f97f3c613e9dca6be583
CPU threads: 24; OS: Windows 11 X86_64 (10.0 build 26100); UI render: Skia/Vulkan; VCL: win
Locale: ru-RU (ru_RU); UI: en-US
Calc: CL threaded

Open the attachment, right-click the chart, and select "Export as Image". Export as a raster image format (BMP or PNG), and then check the file in a raster image editor (I use Paint.Net).

When the program is set to use anti-aliasing (Options->View), the output has both lines and texts anti-aliased for me.
Comment 4 Mike Kaganski 2024-08-19 08:13:39 UTC 
Created attachment 195896 [details]
The export result
Comment 5 Mike Kaganski 2024-08-19 08:19:30 UTC 
The problem is: I can't repro even using version 4.2 or 4.4, using the sample I provided. So is this bug about a different function? Or is it about missing configuration of export filter in the export dialog?
Comment 6 Buovjaga 2024-08-19 08:31:45 UTC 
Bug 60137 comment 6 mentions lack of anti-aliasing in bitmap exports in 2013, but I think we should close this indeed.