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), rx, ry, norm):
22 if norm:
23 r = abs(random.normalvariate(0.0,0.5*max(rx, ry)))
24 else:
25 r = random.uniform(0.0,max(rx, ry))
26 a = random.uniform(0.0,2*math.pi)
27 x += math.cos(a)*rx
28 y += math.sin(a)*ry
29 return [x, y]
31 class RadiusRandomize(inkex.Effect):
32 def __init__(self):
33 inkex.Effect.__init__(self)
34 self.OptionParser.add_option("--title")
35 self.OptionParser.add_option("-x", "--radiusx",
36 action="store", type="float",
37 dest="radiusx", default=10.0,
38 help="Randomly move nodes and handles within this radius, X")
39 self.OptionParser.add_option("-y", "--radiusy",
40 action="store", type="float",
41 dest="radiusy", default=10.0,
42 help="Randomly move nodes and handles within this radius, Y")
43 self.OptionParser.add_option("-c", "--ctrl",
44 action="store", type="inkbool",
45 dest="ctrl", default=True,
46 help="Randomize control points")
47 self.OptionParser.add_option("-e", "--end",
48 action="store", type="inkbool",
49 dest="end", default=True,
50 help="Randomize nodes")
51 self.OptionParser.add_option("-n", "--norm",
52 action="store", type="inkbool",
53 dest="norm", default=True,
54 help="Use normal distribution")
55 self.OptionParser.add_option("--tab",
56 action="store", type="string",
57 dest="tab",
58 help="The selected UI-tab when OK was pressed")
60 def effect(self):
61 for id, node in self.selected.iteritems():
62 if node.tag == inkex.addNS('path','svg'):
63 d = node.get('d')
64 p = cubicsuperpath.parsePath(d)
65 for subpath in p:
66 for csp in subpath:
67 if self.options.end:
68 delta=randomize([0,0], self.options.radiusx, self.options.radiusy, self.options.norm)
69 csp[0][0]+=delta[0]
70 csp[0][1]+=delta[1]
71 csp[1][0]+=delta[0]
72 csp[1][1]+=delta[1]
73 csp[2][0]+=delta[0]
74 csp[2][1]+=delta[1]
75 if self.options.ctrl:
76 csp[0]=randomize(csp[0], self.options.radiusx, self.options.radiusy, self.options.norm)
77 csp[2]=randomize(csp[2], self.options.radiusx, self.options.radiusy, self.options.norm)
78 node.set('d',cubicsuperpath.formatPath(p))
80 if __name__ == '__main__':
81 e = RadiusRandomize()
82 e.affect()
85 # vim: expandtab shiftwidth=4 tabstop=8 softtabstop=4 fileencoding=utf-8 textwidth=99