On Fri, Sep 11, 2009 at 3:39 AM, Ilya Zakharevich
<[email protected]> wrote:
> I want to stroke the path with the current tool, with all the
> parameters as selected in the tool options. I do not think I can do
> it with the PATHs right-mouse-click menu, can I?
>
> (What I see are only choices of "Paint" tools. What I want is "Select
> tools", like color select and/or magic wand.)
>
> =======================================================
>
> An alternative would be to use Script-Fu API to "walk along a path";
> but I would need to "invoke the current tool at the specified point"
> from Script-Fu, and I can't guess how to find this with the Script-Fu
> procedure browser...
>
> Any help would be appreciated,
> Ilya
Hmm - I can't find a way to access the current tool through the PDB.
Am I mistaken?
I was playing with this idea a bit (in Python), and
vector.stroke.interpolate will give a list of points along a path - I
assume this function is also available in script-fu. I've pasted what
I was messing around with below, but w/o access to the current tool,
it's a bit useless as a plug-in ;)
Chris
#!/usr/bin/env python
# Author: Chris Mohler
# Copyright 2009 Chris Mohler
# License: GPL v3
# Version 0.1
# GIMP plugin to use arbitrary tool along a path
from gimpfu import *
gettext.install("gimp20-python", gimp.locale_directory, unicode=True)
def tool_on_path(img, paths):
try:
# get active path
path = pdb.gimp_image_get_active_vectors(img)
# get points on the path
points = path.strokes[0].interpolate(0.1)[0]
# empty return message
ret = ""
# process points
for i in range(len(points)/2):
x = points.pop(0)
y = points.pop(0)
# collect points for message
ret = ret + str(i) + ": " + str(x) + "," + str(y) + "\n"
# don't see any way to grab the active tool, so...
# just do a ellipse select, 20 px wide
pdb.gimp_ellipse_select(img, x-10.0, y-10.0, 20, 20, 0, 1, 0, 0)
# output message to error console
# gimp.message(ret)
except:
pass
register(
proc_name=("python-fu-tool-on-path"),
blurb=("Tool on Path"),
help=("Use arbitrary tool along a path."),
author=("Chris Mohler"),
copyright=("Chris Mohler"),
date=("2009"),
label=("Tool on Path"),
imagetypes=("*"),
params=[
(PF_IMAGE, "img", "Image", None),
(PF_VECTORS, "paths", "Paths", None)
],
results=[],
function=(tool_on_path),
menu=("<Vectors>"),
domain=("gimp20-python", gimp.locale_directory)
)
main()
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