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#!/usr/bin/env python
'''
Copyright (C) 2005 Aaron Spike, aaron@ekips.org
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
'''
import random, math, inkex, cubicsuperpath
def randomize((x, y), r, norm):
if norm:
r = abs(random.normalvariate(0.0,0.5*r))
else:
r = random.uniform(0.0,r)
a = random.uniform(0.0,2*math.pi)
x += math.cos(a)*r
y += math.sin(a)*r
return [x, y]
class RadiusRandomize(inkex.Effect):
def __init__(self):
inkex.Effect.__init__(self)
self.OptionParser.add_option("-r", "--radius",
action="store", type="float",
dest="radius", default=10.0,
help="Randomly move control and end points in this radius")
self.OptionParser.add_option("-c", "--ctrl",
action="store", type="inkbool",
dest="ctrl", default=True,
help="Randomize control points")
self.OptionParser.add_option("-e", "--end",
action="store", type="inkbool",
dest="end", default=True,
help="Randomize nodes")
self.OptionParser.add_option("-n", "--norm",
action="store", type="inkbool",
dest="norm", default=True,
help="Use normal distribution")
def effect(self):
for id, node in self.selected.iteritems():
if node.tagName == 'path':
d = node.attributes.getNamedItem('d')
p = cubicsuperpath.parsePath(d.value)
for subpath in p:
for csp in subpath:
if self.options.end:
delta=randomize([0,0], self.options.radius, self.options.norm)
csp[0][0]+=delta[0]
csp[0][1]+=delta[1]
csp[1][0]+=delta[0]
csp[1][1]+=delta[1]
csp[2][0]+=delta[0]
csp[2][1]+=delta[1]
if self.options.ctrl:
csp[0]=randomize(csp[0], self.options.radius, self.options.norm)
csp[2]=randomize(csp[2], self.options.radius, self.options.norm)
d.value = cubicsuperpath.formatPath(p)
e = RadiusRandomize()
e.affect()
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