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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 math, tempfile, copy, cPickle, inkex, simplepath
def findend(d):
end = []
subPathStart = []
for cmd,params in d:
if cmd == 'M':
subPathStart = params[-2:]
if cmd == 'Z':
end = subPathStart[:]
else:
end = params[-2:]
return end
class Kochify(inkex.Effect):
def effect(self):
try:
f = open(tempfile.gettempdir() + '/kochify.bin', 'r')
proto = cPickle.load(f)
f.close()
except:
return False
for id, node in self.selected.iteritems():
if node.tagName == 'path':
d = node.attributes.getNamedItem('d')
p = simplepath.parsePath(d.value)
last = p[0][1][-2:]
subPathStart = []
cur = []
new = []
for i in range(len(p)):
rep = copy.deepcopy(proto['path'])
cmd, params = p[i]
if cmd == 'M':
subPathStart = params[-2:]
new.append(copy.deepcopy(p[i]))
continue
if cmd == 'Z':
cur = subPathStart[:]
else:
cur = params[-2:]
if last == cur:
continue
dx = cur[0]-last[0]
dy = cur[1]-last[1]
length = math.sqrt((dx**2) + (dy**2))
angle = math.atan2(dy,dx)
scale = length / proto['length']
rotate = angle - proto['angle']
simplepath.scalePath(rep,scale,scale)
simplepath.rotatePath(rep, rotate)
repend = findend(rep)
transx = cur[0] - repend[0]
transy = cur[1] - repend[1]
simplepath.translatePath(rep, transx, transy)
if proto['endsinz']:
new.extend(rep[:])
else:
new.extend(rep[1:])
last = cur[:]
d.value = simplepath.formatPath(new)
e = Kochify()
e.affect()
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