Added Paths to lowlevel strokes extension
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<?xml version="1.0" encoding="UTF-8"?>
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<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
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<name>Convert To Localized Braille</name>
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<id>fablabchemnitz.de.braille-l18n</id>
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<id>fablabchemnitz.de.braille_l18n</id>
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<param name="locale" gui-text="Alphabet:" type="optiongroup" appearance="combo">
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<option value="en">English (ASCII)</option>
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<option value="es">Spanish</option>
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</effects-menu>
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</effect>
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<script>
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<command location="inx" interpreter="python">braille-l18n.py</command>
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<command location="inx" interpreter="python">braille_l18n.py</command>
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</script>
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</inkscape-extension>
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[
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{
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"name": "Convert To Localized Braille",
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"id": "fablabchemnitz.de.braille-l18n",
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"path": "braille-l18n",
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"id": "fablabchemnitz.de.braille_l18n",
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"path": "braille_l18n",
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"original_name": "Convert to localized Braille",
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"original_id": "org.inkscape.text.braille-l18n",
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"license": "BSD-3-Clause License",
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[
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{
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"name": "Paths To Lowlevel Strokes",
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"id": "fablabchemnitz.de.paths_to_lowlevel_strokes",
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"path": "paths_to_lowlevel_strokes",
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"original_name": "Paths To Lowlevel Strokes",
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"original_id": "fablabchemnitz.de.paths_to_lowlevel_strokes",
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"license": "GNU GPL v3",
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"license_url": "https://gitea.fablabchemnitz.de/FabLab_Chemnitz/mightyscape-1.X/src/branch/master/LICENSE",
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"comment": "Created by Mario Voigt",
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"source_url": "https://gitea.fablabchemnitz.de/FabLab_Chemnitz/mightyscape-1.X/src/branch/master/extensions/fablabchemnitz/paths_to_strokes",
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"fork_url": null,
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"documentation_url": "https://stadtfabrikanten.org/display/IFM/Paths+To+Lowlevel+Strokes",
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"inkscape_gallery_url": null,
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"main_authors": [
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"github.com/vmario89"
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]
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}
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]
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<?xml version="1.0" encoding="UTF-8"?>
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<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
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<name>Paths To Lowlevel Strokes</name>
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<id>fablabchemnitz.de.paths_to_lowlevel_strokes</id>
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<param name="flattenbezier" type="bool" gui-text="Quantization (flatten bezier curves to polylines)">true</param>
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<param name="flatness" type="float" min="0.001" max="99999.000" precision="3" gui-text="Flatness (tolerance)" gui-description="Minimum flatness = 0.001. The smaller the value the more fine segments you will get.">0.100</param>
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<param name="decimals" type="int" min="0" max="16" gui-text="Decimals" gui-description="Accuracy">3</param>
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<effect needs-live-preview="true">
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<object-type>path</object-type>
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<effects-menu>
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<submenu name="FabLab Chemnitz">
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<submenu name="Modify existing Path(s)"/>
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</submenu>
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</effects-menu>
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</effect>
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<script>
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<command location="inx" interpreter="python">paths_to_lowlevel_strokes.py</command>
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</script>
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</inkscape-extension>
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#!/usr/bin/env python3
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from lxml import etree
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import inkex
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from inkex import bezier, PathElement
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from inkex.paths import CubicSuperPath, Path
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import copy
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class PathsToStrokes(inkex.EffectExtension):
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def add_arguments(self, pars):
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pars.add_argument("--flattenbezier", type=inkex.Boolean, default=False, help="Flatten bezier curves to polylines")
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pars.add_argument("--flatness", type=float, default=0.1, help="Minimum flatness = 0.1. The smaller the value the more fine segments you will get (quantization).")
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pars.add_argument("--decimals", type=int, default=3)
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def effect(self):
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def flatten(node):
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path = node.path.transform(node.composed_transform()).to_superpath()
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bezier.cspsubdiv(path, self.options.flatness)
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newpath = []
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for subpath in path:
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first = True
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for csp in subpath:
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cmd = 'L'
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if first:
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cmd = 'M'
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first = False
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newpath.append([cmd, [csp[1][0], csp[1][1]]])
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node.path = newpath
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def break_contours(element, breakelements = None):
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if breakelements == None:
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breakelements = []
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if element.tag == inkex.addNS('path','svg'):
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if self.options.flattenbezier is True:
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flatten(element)
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parent = element.getparent()
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idx = parent.index(element)
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idSuffix = 0
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raw = element.path.to_arrays()
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subPaths = []
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prev = 0
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for i in range(len(raw)): # Breaks compound paths into simple paths
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if raw[i][0] == 'M' and i != 0:
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subPath = raw[prev:i]
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subPaths.append(Path(subPath))
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prev = i
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subPaths.append(Path(raw[prev:])) #finally add the last path
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for subPath in subPaths:
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replacedelement = copy.copy(element)
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oldId = replacedelement.get('id')
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csp = CubicSuperPath(subPath)
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if len(subPath) > 1 and csp[0][0] != csp[0][1]: #avoids pointy paths like M "31.4794 57.6024 Z"
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replacedelement.path = subPath
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if len(subPaths) == 1:
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replacedelement.set('id', oldId)
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else:
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replacedelement.set('id', oldId + str(idSuffix))
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idSuffix += 1
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parent.insert(idx, replacedelement)
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breakelements.append(replacedelement)
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element.delete()
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for child in element.getchildren():
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break_contours(child, breakelements)
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return breakelements
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if len(self.svg.selected) == 0:
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elementsToWork = break_contours(self.document.getroot())
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else:
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elementsToWork = None
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for element in self.svg.selected.values():
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elementsToWork = break_contours(element, elementsToWork)
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for element in elementsToWork:
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oldId = element.get('id')
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oldStyle = element.style
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path = element.path.to_absolute().to_arrays() #to_arrays() is deprecated. How to make more modern?
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pathIsClosed = False
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if path[-1][0] == 'Z' or \
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(path[-1][0] == 'L' and path[0][1] == path[-1][1]) or \
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(path[-1][0] == 'C' and path[0][1] == [path[-1][1][-2], path[-1][1][-1]]) \
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: #if first is last point the path is also closed. The "Z" command is not required
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pathIsClosed = True
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parent = element.getparent()
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idx = parent.index(element)
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element.delete()
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if len(path) == 2 and pathIsClosed is False:
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line = inkex.Line(id=oldId)
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line.set('x1', '{:0.{dec}f}'.format(path[0][1][0], dec=self.options.decimals))
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line.set('y1', '{:0.{dec}f}'.format(path[0][1][1], dec=self.options.decimals))
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line.set('x2', '{:0.{dec}f}'.format(path[1][1][0], dec=self.options.decimals))
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line.set('y2', '{:0.{dec}f}'.format(path[1][1][1], dec=self.options.decimals))
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line.style = oldStyle
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parent.insert(idx, line)
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if len(path) > 2 and pathIsClosed is False:
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polyline = inkex.Polyline(id=oldId)
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points = ""
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for i in range(0, len(path)):
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points += '{:0.{dec}f},{:0.{dec}f} '.format(path[i][1][0], path[i][1][1], dec=self.options.decimals)
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polyline.set('points', points)
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polyline.style = oldStyle
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parent.insert(idx, polyline)
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if len(path) > 2 and pathIsClosed is True:
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polygon = inkex.Polygon(id=oldId)
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points = ""
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for i in range(0, len(path) - 1):
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points += '{:0.{dec}f},{:0.{dec}f} '.format(path[i][1][0], path[i][1][1], dec=self.options.decimals)
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polygon.set('points', points)
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polygon.style = oldStyle
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parent.insert(idx, polygon)
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if __name__ == '__main__':
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PathsToStrokes().run()
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