Inkscape

Sculpt tool (roughen) has no effect after a few moments of usage

Bug #650870 reported by Mihai Sorin Dobrescu
18
This bug affects 2 people
Affects Status Importance Assigned to Milestone
Inkscape
Confirmed
Medium
Unassigned
Nominated for 0.48.x by Mihai Sorin Dobrescu

Bug Description

Sculpt tool set on roughen parts of paths has no effect after a few moments of usage.
Draw a circle with the ray of 450 px and try to use the tool on the border. The tool is set to have width 10 and force 50. Sometimes it breaks the circle and a small trace of it remains. Sometimes it just roughen the border of the circle for 15 degrees, then it has no effect at all no matter what I do (select/deselect the object, select it again and try to apply the tool). For lines drawn with calligraphic tool it just apply at one end, for a small segment. Then no effect.

I have tried it on Windows Vista x86 and Windows 7 64 bit, installed on a i7 920 machine with 6 GB or RAM and an nVidia 7200GS card.

The version of Inkscape: 0.48.0-1.

See original description
Mihai Sorin Dobrescu (msdobrescu-gmail)
description: updated
Revision history for this message
su_v (suv-lp) wrote :

Reproduced with Inkscape 0.48+devel r9799 on OS X 10.5.8

When the tweak tool fails to further roughen the selected circle/path, there are repeated console messages:
** (inkscape-bin:5291): WARNING **: Shape error in ConvertToShape: directedEulerian(a) == false

tags: added: shape-editing
Changed in inkscape:
importance: Undecided → Medium
status: New → Confirmed
tags: added: tweak
Revision history for this message
Mihai Sorin Dobrescu (msdobrescu-gmail) wrote :

This affects 0.48.2 also, in a different way.
Sculpt tool could be applied several times (2-3) before it becomes ineffective.
Sometimes, after transforming rectangular shapes to paths, it doesn't affect them for a great roughness until the lines are modified by acting on their handlers. It just moves the points.
I would have expected to modify the rectangular shape as in case of ellipses.

After exiting the tool and re-entering, it doesn't act at all.

I would really need this tool for some graphic design projects of mine...

ScislaC (scislac)
Changed in inkscape:
milestone: none → 0.49
Revision history for this message
Mihai Sorin Dobrescu (msdobrescu-gmail) wrote :

Thank you!

Revision history for this message
su_v (suv-lp) wrote :

Same issue was reported earlier in
Bug #322644 “roughen tool fails”
<https://bugs.launchpad.net/inkscape/+bug/322644>

summary: - Sculpt tool has no effect after a few moments of usage
+ Sculpt tool (roughen) has no effect after a few moments of usage
Revision history for this message
su_v (suv-lp) wrote :

Listed among the known issues in the release notes for 0.46:
«Also, sometimes after roughening, further tweaking of a path becomes impossible with this diagnostic:

 WARNING **: Shape error in ConvertToShape: directedEulerian(a) == false

All these problems stem from the livarot library that we use for geometric manipulation of paths. Fortunately, livarot is scheduled for replacement by lib2geom, a new library now in development, so hopefully these issues will be addressed then. »
<http://wiki.inkscape.org/wiki/index.php/Release_notes/0.46#Known_problems>

Revision history for this message
John Smith (john-smithi) wrote :

> livarot is scheduled for replacement by lib2geom
Is this work planned for 0.49 ?

Revision history for this message
ScislaC (scislac) wrote :

No one has expressed interest in taking it on that I'm aware of.

Revision history for this message
John Smith (john-smithi) wrote :

> No one has expressed interest in taking it on that I'm aware of.
Should the milestone be changed then ?

Revision history for this message
ScislaC (scislac) wrote :

I think we can leave as-is until the proposed release plan is discussed on the devel list. I'm planning to put that forth in a few weeks or so.

ScislaC (scislac)
Changed in inkscape:
milestone: 0.49 → none
Revision history for this message
Mihai Sorin Dobrescu (msdobrescu-gmail) wrote :

Please...

Revision history for this message
ScislaC (scislac) wrote :

Mihai: I'm really sorry about that. Unfortunately everything in Inkscape is driven by volunteers. We don't have any paid developers, and there are technical reasons why 2geom can't replace livarot yet. Unfortunately it is unlikely that anyone will step up implement what is needed prior to 0.49 being released. The milestone was originally set as an optimistic goal, but we want to get 0.49 out before the end of the year.

Revision history for this message
Mihai Sorin Dobrescu (msdobrescu-gmail) wrote :

So no plans fot it in 0.91, 1.0...?

To post a comment you must log in.
This report contains Public information  
Everyone can see this information.

Duplicates of this bug

Subscribing...

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.