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IDProjectCategoryView StatusDate SubmittedLast Update
0013706ScribusCanvaspublic2016-02-02 19:242018-04-30 12:23
ReporterKunda Assigned To 
PrioritynormalSeverityminorReproducibilityhave not tried
Status confirmedResolutionopen 
PlatformMacOSXOSYosemiteOS Version10.10.5
Product Version1.5.1svn 
Target Version1.5.5 
Summary0013706: Changing Line width renders line incorrectly when selected
DescriptionSee gif
Discovered this trying to test 0008042
Steps To Reproduce1) Draw a horizontal straight line
2) Change line thickness to 0.50 pt
Result: see gif
Tagsartifacts, cairo, lines, upstream
PatchNo

Relationships

related to 0008042 confirmed Origins of straight line objects are calculated incorrectly 
related to 0014020 closed Lines that are widened don't snap to margins correctly 
related to 0014021 closedjghali Widened & Rotated line that is grouped with another object shows abnormal outline when grouped 
related to 0011647 confirmed Alignment functions don't work uniformally with lines of width greater than hairline 

Activities

Kunda

2016-02-02 19:24

updater  

line-weirdness.gif (155,001 bytes)   
line-weirdness.gif (155,001 bytes)   

fschmid

2016-02-07 08:00

developer   ~0038556

Try moving the line accross the canvas, you will see that the drawing is different at other places. This is due to rounding effects of the underlying cairo library.

Kunda

2016-02-09 00:20

updater   ~0038575

Franz, everywhere i drag it on the canvas shows the same result. Either way, do we need to report this upstream ?

Kunda

2016-02-09 02:50

updater   ~0038577

Actually, I can see that the drawing is different in other places. For example, the moment when the border of the canvas is reached it will redraw the line correctly. See 2nd gif

Kunda

2016-02-09 02:50

updater  

line-redraw-canvas-edge-weirdness.gif (48,306 bytes)   
line-redraw-canvas-edge-weirdness.gif (48,306 bytes)   

cbradney

2016-02-09 09:07

administrator   ~0038579

Either way its unacceptable.. do we need a bug raised to cairo?

Kunda

2016-02-27 14:05

updater   ~0038922

Craig, perhaps this issue is fixed in cairo 1.15.2 ?

Issue History

Date Modified Username Field Change
2016-02-02 19:24 Kunda New Issue
2016-02-02 19:24 Kunda File Added: line-weirdness.gif
2016-02-02 19:25 Kunda Summary Changing Line thickness renders line incorrectly when activated => Changing Line width renders line incorrectly when activated
2016-02-02 19:37 Kunda Relationship added related to 0008042
2016-02-07 08:00 fschmid Note Added: 0038556
2016-02-09 00:20 Kunda Note Added: 0038575
2016-02-09 02:50 Kunda Note Added: 0038577
2016-02-09 02:50 Kunda File Added: line-redraw-canvas-edge-weirdness.gif
2016-02-09 09:07 cbradney Note Added: 0038579
2016-02-27 14:05 Kunda Note Added: 0038922
2016-05-05 15:37 Kunda Tag Attached: artifacts
2016-05-05 15:38 Kunda Tag Attached: upstream
2016-05-05 15:38 Kunda Tag Attached: cairo
2016-05-05 15:41 Kunda Relationship added related to 0014020
2016-05-05 15:43 Kunda Tag Attached: lines
2016-05-06 01:22 Kunda Relationship added related to 0014021
2016-05-06 01:25 Kunda Status new => confirmed
2016-05-06 01:25 Kunda Target Version => 1.5.4.svn
2016-05-07 15:48 jghali Summary Changing Line width renders line incorrectly when activated => Changing Line width renders line incorrectly when selected
2016-05-10 15:44 Kunda Relationship added related to 0011647
2018-04-30 12:23 jghali Target Version 1.5.4.svn => 1.5.5