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View Full Version : GIMP Stroke Path with Taper Plugin - Help Needed



bearden314
07-03-2011, 02:12 PM
Hello All,

I searched through the forums for a good taper plug in and tried both RobA's and ijontichy's. I "installed" both and tried out both and get the same error when trying to use them:

Error while executing tapered_stroke_along_path:

Error: Procedure execution of gimp-vectors-get-strokes failed on invalid input arguments: Procedure 'gimp-vectors-get-strokes' has been called with value '-1' for argument 'vectors' (#1, type GimpVectorsID). This value is out of range.

I was wondering if anyone else ran into this problem as well? If so, how did you work around it as these tools are quite amazing and I think they would make my rivers look quite good.

Any help would be welcome.

Thanks so much :)

Hai-Etlik
07-04-2011, 01:51 AM
I find Inkscape is a better tool for this sort of thing than The GIMP. But you don't need a plugin, just use the "Emulate Bruch Dynamics" option for the Stroke Path dialogue, and link velocity to brush size on the tool you use to stroke.

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bearden314
07-04-2011, 10:28 AM
Thanks. Ideally I would like to use the plug-in as I don't have a tablet, so its hard to use velocity to emulate brush size with a mouse (I have tried this multiple time prior to posting the OP). I have also tried inkscape and well... it gives me headaches to put it lightly lol (even when following the tapering tutorial). Thanks though, maybe i just need more inkscape practice.

Hai-Etlik
07-04-2011, 06:09 PM
Thanks. Ideally I would like to use the plug-in as I don't have a tablet, so its hard to use velocity to emulate brush size with a mouse (I have tried this multiple time prior to posting the OP).

That's what using "Emulate Stroke Dynamics" is for. It fakes the velocity part when stroking a path. In particular, it increases the velocity as you move along the path.


I have also tried inkscape and well... it gives me headaches to put it lightly lol (even when following the tapering tutorial). Thanks though, maybe i just need more inkscape practice.

There are some very good built in tutorials under the help menu. The actual process of working with paths in Inkscape isn't all that different from paths in The GIMP as both are based on Bezier Splines. Inkscape just has a nicer interface for path editing, and can do "live" path effects.

RobA
07-05-2011, 10:51 AM
BTW what version of gimp are you running? There are big changes from 2.7dev version on that break many scripts.

-Rob A>

bearden314
07-05-2011, 12:42 PM
Hi RobA - I have been using GIMP 2.6.11. I have been running it on an older computer (read VERY old... ~6-7 yeard old) with Windows XP Media Center Edition OS.

Thanks Hai-Etlik, I will look further into Inkscape, as the more I read the cooler it seems.

Thanks again for all your replies, I appreciate it!!