Update of selection bevel

molly · **Joined:** Apr 07, 2010 **Posts:** 14182

Eris if that is dd's script you are referring to, I think it is a py file so you have to have python installed.

Erisian · **Posted:** Wed Feb 05, 2014 6:07 pm **(#62)**

Yeah, I didn't realise it wasn't installed until I tried another python file and that didn't work either.

molly · **Joined:** Apr 07, 2010 **Posts:** 14182

There is a good tutorial by rod how to install python Aris.

divestoclimb · **Joined:** Feb 05, 2014 **Posts:** 5

Thanks!

If it helps, I'm using Gimp 2.8.6, the standard build that comes with Ubuntu 13.10.

Erisian · **Posted:** Thu Feb 06, 2014 12:48 pm **(#65)**

molly wrote:

There is a good tutorial by rod how to install python Aris.

Thanks Molly. I've got PC's package with instructions. I've done it twice before so it should be easy enough.

molly · **Joined:** Apr 07, 2010 **Posts:** 14182

yes I found it easy to follow, but then again if you had 2.8 it would be included. :teeth

divestoclimb · **Joined:** Feb 05, 2014 **Posts:** 5

I'm working on my batch script now and noticed a pretty serious bug when running the plugin in non-interactive mode:

Code: Select all

  File "/home/benr/.gimp-2.8/plug-ins/bevel2_3.py", line 141, in __init__
    fxlayer = self.makeLayer(img, drawable, lmode, upb, innerb, width, height, feather, shape, prenoise, preblur, azimuth, elevation, depth, postblur, opacity, gloss, ialphab )
NameError: global name 'feather' is not defined
batch command experienced an execution error:
Error: ( : 1) Procedure execution of python-fu-bevel failed

As indicated by the backtrace, the problem is that line 141 includes a "feather" variable that's not defined. It looks to me like there have been updates to the arguments that self.makeLayer accepts and this line was not updated as well.

So I fixed line 141 like so:

Code: Select all

fxlayer = self.makeLayer(img, drawable, lmode, upb, innerb, width, height, shape, prenoise, azimuth, elevation, depth, postblur, opacity, gloss, ialphab )

That at least gets me past there. Now I'm trying to troubleshoot this failure:

Code: Select all

/usr/lib/gimp/2.0/plug-ins/emboss: fatal error: Floating point exception
GIMP-Error: Calling error for procedure 'plug-in-emboss':
Procedure 'plug-in-emboss' returned no return values

[I had to cut out some portions of the backtraces to get phpBB to accept this post since I'm a new user]

molly · **Joined:** Apr 07, 2010 **Posts:** 14182

one more post, then you can post the rest.

divestoclimb · **Joined:** Feb 05, 2014 **Posts:** 5

Success! The problem I encountered with the floating point exception was passing "0" for depth. I found the correct default in the source.

I decided to just implement the hack in script-fu of resizing the image, selecting, bevelling, and cropping. If anyone's interested, here's the script (this is my first time ever writing Scheme BTW):

Code: Select all

(define (batch-bevel pattern)
  (let* ((filelist (cadr (file-glob pattern 1))))
    (while (not (null? filelist))
      (let* ((filename (car filelist))
        (image (car (gimp-file-load RUN-NONINTERACTIVE
                     filename filename)))
        (drawable (car (gimp-image-get-active-layer image)))
        (width (car (gimp-image-width image)))
        (height (car (gimp-image-height image))))
        (gimp-image-resize image 438 334 10 10)
        (gimp-layer-resize-to-image-size drawable)
        (gimp-image-select-rectangle image
                 CHANNEL-OP-REPLACE
                 10
                 10
                 width
                 height)
        (python-fu-bevel RUN-NONINTERACTIVE
               image
               drawable
               SOFTLIGHT-MODE
               1
               1
               2
               2
               0
               0
               135
               30
               20
               3
               80
               0
               0)
        (set! drawable (car (gimp-image-flatten image)))
        (gimp-image-crop image
               width
               height
               10
               10)
        (gimp-file-save RUN-NONINTERACTIVE image drawable filename filename)
        (gimp-image-delete image))
      (set! filelist (cdr filelist)))))

The only problem is that I couldn't figure out how to do arithmetic, so the "438" and "334" are hardcoded dimensions where they should look something like (+ (width 20)) and (+ (height 20)), but that produces an "illegal function" error.

dd · **Joined:** Apr 10, 2011 **Posts:** 532

divestoclimb, thanks a lot for reporting this. I've lately been busy with other software projects (non-GIMP related), but as soon as I have time I'll release a bugfix.

The bevel not working on fullsize image is unfortunately something that's caused by the way gaussian blur works in GIMP: it will not blur the edges of the image, and that's not something I can fix at this point. Resizing the image is a good workaround, it's what I do when I need to do full-page bevels. However, I might consider adding this workaround to the plugin, if I can figure out a good way to find out when the entire page is selected. Will have to look into that.