1 #!/usr/bin/env python
2 '''
3 Copyright (C) 2005 Aaron Spike, aaron@ekips.org
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 '''
19 import random, math, inkex, cubicsuperpath
21 def randomize((x, y), r):
22 r = random.uniform(0.0,r)
23 a = random.uniform(0.0,2*math.pi)
24 x += math.cos(a)*r
25 y += math.sin(a)*r
26 return [x, y]
28 class RadiusRandomize(inkex.Effect):
29 def __init__(self):
30 inkex.Effect.__init__(self)
31 self.OptionParser.add_option("-r", "--radius",
32 action="store", type="float",
33 dest="radius", default=10.0,
34 help="Randomly move control and end points in this radius")
35 self.OptionParser.add_option("-c", "--ctrl",
36 action="store", type="inkbool",
37 dest="ctrl", default=True,
38 help="Randomize control points")
39 self.OptionParser.add_option("-e", "--end",
40 action="store", type="inkbool",
41 dest="end", default=True,
42 help="Randomize nodes")
43 def effect(self):
44 for id, node in self.selected.iteritems():
45 if node.tagName == 'path':
46 d = node.attributes.getNamedItem('d')
47 p = cubicsuperpath.parsePath(d.value)
48 for subpath in p:
49 for csp in subpath:
50 if self.options.end:
51 delta=randomize([0,0], self.options.radius)
52 csp[0][0]+=delta[0]
53 csp[0][1]+=delta[1]
54 csp[1][0]+=delta[0]
55 csp[1][1]+=delta[1]
56 csp[2][0]+=delta[0]
57 csp[2][1]+=delta[1]
58 if self.options.ctrl:
59 csp[0]=randomize(csp[0], self.options.radius)
60 csp[2]=randomize(csp[2], self.options.radius)
61 d.value = cubicsuperpath.formatPath(p)
63 e = RadiusRandomize()
64 e.affect()