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mightyscape-1.1-deprecated/extensions/fablabchemnitz/netting/netting.py

76 lines
3.1 KiB
Python

#!/usr/bin/env python3
'''
netting.py
Sunabe kazumichi 2010/3/4
http://dp48069596.lolipop.jp/
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
this program nets in the line.
'''
import random
import math
import inkex
import cubicsuperpath
from lxml import etree
from inkex.paths import Path, CubicSuperPath
class Netting(inkex.EffectExtension):
def add_arguments(self, pars):
pars.add_argument("--tab")
pars.add_argument("--netting_type", default="allwithall", help="Netting type")
pars.add_argument("--stroke_width", type=float, default=1.0, help="stroke width")
def effect(self):
#static
style = {'stroke-width': str(self.options.stroke_width) +'px', 'stroke': '#000000', 'fill': 'none'}
old_segments = []
new_segments = ["M"] #begin with blank M
#get complete path data from all selected paths
for element in self.svg.selected.filter(inkex.PathElement).values():
d = element.get('d')
p = CubicSuperPath(Path(d))
for subpath in p:
for i, csp in enumerate(subpath):
old_segments.append("%f,%f" % (csp[1][0], csp[1][1]))
if self.options.netting_type == "allwithall":
allnet_group = inkex.Group(id="g" + element.get('id'))
self.svg.get_current_layer().append(allnet_group)
for segment1 in range(0, len(old_segments)):
for segment2 in range(1, len(old_segments)):
allnet_path = inkex.PathElement()
allnet_path.style = style
allnet_path.path = Path('M' + old_segments[segment1] + ' L' + old_segments[segment2])
allnet_group.append(allnet_path)
elif self.options.netting_type == "alternatingly":
#build up the net path between the path points alternatingly
while len(old_segments) > 0:
new_segments.append(old_segments.pop(0))
if len(old_segments) > 0:
new_segments.append(old_segments.pop())
#create the path and add it to the current layer
net_path = inkex.PathElement()
net_path.style = style
net_path.path = Path(" ".join(new_segments))
self.svg.get_current_layer().append(net_path)
if __name__ == '__main__':
Netting().run()