112 lines
5.0 KiB
Python
112 lines
5.0 KiB
Python
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#!/usr/bin/env python3
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'''
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netting.py
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Sunabe kazumichi 2010/3/4
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http://dp48069596.lolipop.jp/
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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this program nets in the line.
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'''
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import random
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import math
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import inkex
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import cubicsuperpath
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from lxml import etree
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from inkex.paths import Path, CubicSuperPath
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class Netting(inkex.EffectExtension):
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def add_arguments(self, pars):
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pars.add_argument("--tab")
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pars.add_argument("--netting_type", default="allwithall", help="Netting type")
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pars.add_argument("--node_shifting", type=int, default=0, help="Does not apply for 'all with all' type.")
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pars.add_argument("--stroke_width", type=float, default=1.0, help="stroke width")
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pars.add_argument("--allwithall_limit", type=int, default=100, help="This applies to 'all with all' option only. We limit the nettings loops because 100 path nodes will generate 100x100=10000 netted path nodes already. Might crash Inkscape at higher values easily!")
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def effect(self):
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#static
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style = {'stroke-width': "{:0.6f}".format(self.svg.unittouu(str(self.options.stroke_width) + "px")), 'stroke': '#000000', 'fill': 'none'}
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old_segments = []
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new_segments = []
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#get complete path data from all selected paths
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for element in self.svg.selected.filter(inkex.PathElement).values():
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d = element.get('d')
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p = CubicSuperPath(Path(d))
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for subpath in p:
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for i, csp in enumerate(subpath):
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old_segments.append("%f,%f" % (csp[1][0], csp[1][1]))
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if self.options.netting_type == "allwithall":
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count = 0
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allnet_group = inkex.Group(id="g" + element.get('id'))
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pathsCollection = []
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self.svg.get_current_layer().append(allnet_group)
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for segment1 in range(0, len(old_segments)):
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count = count + 1
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for segment2 in range(1, len(old_segments)):
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if old_segments[segment1] != old_segments[segment2]:
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pathVariant1 = Path('M' + old_segments[segment1] + ' L' + old_segments[segment2])
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pathVariant2 = Path('M' + old_segments[segment2] + ' L' + old_segments[segment1]) #the reversed one
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if pathVariant1 not in pathsCollection and pathVariant2 not in pathsCollection:
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pathsCollection.append(pathVariant1)
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if count >= self.options.allwithall_limit:
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break #skip
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for p in pathsCollection:
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allnet_path = inkex.PathElement()
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allnet_path.style = style
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allnet_path.path = p
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allnet_group.append(allnet_path)
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elif self.options.netting_type == "alternatingly":
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#build up the net path between the path points alternatingly
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first = True
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while len(old_segments) > 0:
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if first is True:
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new_segments.append('M')
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first = False
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else:
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new_segments.append('L')
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new_segments.append(old_segments.pop(0))
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if len(old_segments) > 0:
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new_segments.append('L')
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new_segments.append(old_segments.pop())
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shift = self.options.node_shifting
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if shift < 0:
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counter = -1
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else:
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counter = +1
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for i in range(0, self.options.node_shifting, counter):
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for i in range(4):
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shifting = new_segments[0]
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if new_segments[0] == 'M':
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shifting = 'L' #overwrite possible 'M' with 'L'
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del new_segments[0]
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new_segments.append(shifting)
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new_segments[0] = 'M' #let's begin the path with 'M' again
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#create the path and add it to the current layer
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net_path = inkex.PathElement()
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net_path.style = style
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net_path.path = Path(" ".join(new_segments))
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self.svg.get_current_layer().append(net_path)
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if __name__ == '__main__':
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Netting().run()
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