hpgl_output.py revision 83aaf46c9feab529aeb9add871c05c3d1177afcc
#!/usr/bin/env python
'''
Copyright (C) 2008 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 inkex, cubicsuperpath, simplepath, cspsubdiv
class MyEffect(inkex.Effect):
def __init__(self):
inkex.Effect.__init__(self)
self.OptionParser.add_option("-f", "--flatness",
action="store", type="float",
dest="flat", default=10.0,
help="Minimum flatness of the subdivided curves")
self.hpgl = ['IN;SP1;']
def output(self):
print ''.join(self.hpgl)
def effect(self):
path = '//svg:path'
for node in self.document.getroot().xpath(path, namespaces=inkex.NSS):
d = node.get('d')
if len(simplepath.parsePath(d)):
p = cubicsuperpath.parsePath(d)
cspsubdiv.cspsubdiv(p, self.options.flat)
for sp in p:
first = True
for csp in sp:
cmd = 'PD'
if first:
cmd = 'PU'
first = False
self.hpgl.append('%s%s,%s;' % (cmd,csp[1][0],csp[1][1]))
if __name__ == '__main__': #pragma: no cover
e = MyEffect()
e.affect()