bezier curves with ellipse shape - bug?

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erik.teodoru
Posts: 18
Joined: Wed Jun 10, 2015 8:32 pm

bezier curves with ellipse shape - bug?

Postby erik.teodoru » Sun Dec 10, 2017 10:03 am

Hi!
After I update from 0.91 to 0.92, I found some sort of bug when drawing Bezier curves with ellipse shape. For certain angles, I obtain a strange intersection, like the curve is twisted, at one of the ends (see next drawing)
wrong.png
wrong.png (6.47 KiB) Viewed 1436 times

To correct this, I must move the handle, and that sometimes this action modify the curve beyond acceptance (see drawing 2)
right.png
right.png (6.45 KiB) Viewed 1436 times

Can you tell me more about this? Am I doing something wrong, or there is something to be done to avoid this?

Thank you!

Moini
Posts: 3381
Joined: Mon Oct 05, 2015 10:44 am

Re: bezier curves with ellipse shape - bug?

Postby Moini » Sun Dec 10, 2017 10:19 am

Can you share an SVG?
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Inkscape FAQ - Learning Resources - Website with tutorials (German and English)

erik.teodoru
Posts: 18
Joined: Wed Jun 10, 2015 8:32 pm

Re: bezier curves with ellipse shape - bug?

Postby erik.teodoru » Sun Dec 10, 2017 12:30 pm

See the upper part. If you move the handle, in any direction, in one moment the curve is coming back to normal (not twisted anymore)

drawing.svg
(6.57 KiB) Downloaded 194 times

Moini
Posts: 3381
Joined: Mon Oct 05, 2015 10:44 am

Re: bezier curves with ellipse shape - bug?

Postby Moini » Mon Dec 11, 2017 6:54 am

Yes, it looks right to me with Inkscape 0.91, and wrong with 0.92.2. I did a quick search through the bug reports, and couldn't find this issue.

Would you take another look, and open a new report at https://bugs.launchpad.net/inkscape/ if you also cannot find one?
Something doesn't work? - Keeping an eye on the status bar can save you a lot of time!

Inkscape FAQ - Learning Resources - Website with tutorials (German and English)

tylerdurden
Posts: 2344
Joined: Sun Apr 14, 2013 12:04 pm
Location: Michigan, USA

Re: bezier curves with ellipse shape - bug?

Postby tylerdurden » Mon Dec 11, 2017 8:32 am

Have you tried increasing the pattern width to .4 or more?

drawing-TD1.svg_-_Inkscape_2017-12-10_17-29-49.png
drawing-TD1.svg_-_Inkscape_2017-12-10_17-29-49.png (38.92 KiB) Viewed 1278 times


There may be a bug, but this may be an acceptable workaround for you.

TD
Have a nice day.

I'm using Inkscape 0.92.2 (5c3e80d, 2017-08-06), 64 bit win8.1

The Inkscape manual has lots of helpful info! http://tavmjong.free.fr/INKSCAPE/MANUAL/html/

erik.teodoru
Posts: 18
Joined: Wed Jun 10, 2015 8:32 pm

Re: bezier curves with ellipse shape - bug?

Postby erik.teodoru » Fri Dec 15, 2017 6:50 am

Yes, there are 2 options - drag a little bit the handles or increase the pattern width.
Sometimes it is working, sometimes not - because i alter my drawing. :)
At the end, at least I know I did not make a mistake :)
Thank you for your replies!


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