Re: [Gimp-user] Using a filter from within script-fu

[Rob Antonishen <rob antonishen gmail com>]

In the procedure browser (not the plugin browser) You can see the parameters:

run-mode
image
drawable
propagate mode - 0:white, 1:black, 2:middle value 3:foreground to
peak, 4:foreground, 5:background, 6:opaque, 7:transparent
propagating-channel - HISTOGRAM-VALUE uses the value, you can also use
HISTOGRAM-RED HISTOGRAM-BLUE, HISTOGRAM-GREEN or (I think)
HISTOGRAM-ALPHA
propagating-rate - 0-1 (float)
direction-mask -  0-15 (int) - bit mask 0b0000 each bit is a direction.
lower-limit - 0-255
upper-limit - 0-255

(plug-in-dilate RUN-NONINTERACTIVE img inLayer 1 HISTOGRAM-VALUE 1.0
15 0 255) is equivalent to calling dilate from the filter->Generic
menu.  (I think).

source code: http://git.gnome.org/browse/gimp/tree/plug-ins/common/value-propagate.c

-Rob A>

On Thu, Aug 23, 2012 at 10:33 AM, Rune K. Svendsen <runesvend gmail com> wrote:
> Thanks, both Rob and Kevin! Exactly what I was looking for. I was wondering
> where the documentation for all the functions were. Looks like Help->Plug-in
> browser was what I was looking for.
>
> In GIMP, when I click Filters->Generic->Dilate, the function is just
> performed without it asking for any parameters. How do I find out what the
> values are of the parameters, when using this filter from GIMP?
>
> /Rune
>
>
>
> On 08/22/2012 08:29 AM, Kevin Brubeck Unhammer wrote:
> > "Rune K. Svendsen" <runesvend gmail com> writes:
> >
> > > Hi list
> > >
> > > I'm learning how to write script-fu scripts. I've managed to resize an
> > > image, but I would like to use a filter from within the script-fu
> > > script, applying it to the image after it's been resized. More
> > > specifically, I'd like to run the Filters->Generic->Dilate filter on
> > > the image, before saving it. I've searched on Google for how to do
> > > this, but I can't find any references to using filters from within a
> > > script. Can anyone help me on this?
> >
> > Click Help, then either Plug-in browser or Procedure browser (not sure
> > why there are two), type "dilate". You'll see the name of the main entry
> > function, "plug-in-dilate", in bold, followed by the help string, list
> > of parameters it takes, their types and possible values.
> >
> > Often it's helpful to look at the source of that function, in case you
> > only want do part of what it does. Unfortunately, there doesn't seem to
> > be a one-click method to go straight to the source of non-compiled
> > functions (hint hint, developers). Typing
> > "locate dilate|grep -v '/help/'"
> > into my command line gave me nothing, so perhaps it's written in C
> > or something.
>
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