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 math, tempfile, copy, cPickle, inkex, simplepath
21 def findend(d):
22 end = []
23 subPathStart = []
24 for cmd,params in d:
25 if cmd == 'M':
26 subPathStart = params[-2:]
27 if cmd == 'Z':
28 end = subPathStart[:]
29 else:
30 end = params[-2:]
31 return end
33 class Kochify(inkex.Effect):
34 def effect(self):
35 try:
36 f = open(tempfile.gettempdir() + '/kochify.bin', 'r')
37 proto = cPickle.load(f)
38 f.close()
39 except:
40 return False
41 for id, node in self.selected.iteritems():
42 if node.tagName == 'path':
43 d = node.attributes.getNamedItem('d')
44 p = simplepath.parsePath(d.value)
45 last = p[0][1][-2:]
46 subPathStart = []
47 cur = []
48 new = []
49 for i in range(len(p)):
50 rep = copy.deepcopy(proto['path'])
51 cmd, params = p[i]
52 if cmd == 'M':
53 subPathStart = params[-2:]
54 new.append(copy.deepcopy(p[i]))
55 continue
56 if cmd == 'Z':
57 cur = subPathStart[:]
58 else:
59 cur = params[-2:]
61 if last == cur:
62 continue
64 dx = cur[0]-last[0]
65 dy = cur[1]-last[1]
66 length = math.sqrt((dx**2) + (dy**2))
67 angle = math.atan2(dy,dx)
69 scale = length / proto['length']
70 rotate = angle - proto['angle']
71 simplepath.scalePath(rep,scale,scale)
72 simplepath.rotatePath(rep, rotate)
73 repend = findend(rep)
74 transx = cur[0] - repend[0]
75 transy = cur[1] - repend[1]
76 simplepath.translatePath(rep, transx, transy)
78 if proto['endsinz']:
79 new.extend(rep[:])
80 else:
81 new.extend(rep[1:])
82 last = cur[:]
84 d.value = simplepath.formatPath(new)
85 e = Kochify()
86 e.affect()