FabLab_Chemnitz/mightyscape-1.1-deprecated
FabLab_Chemnitz/mightyscape-1.1-deprecated
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added modified hlines extension

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This commit is contained in:
Mario Voigt 2021-05-17 15:05:14 +02:00
parent 9b8e91c5a6
commit a4513bbe32
4 changed files with 184 additions and 0 deletions
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2
extensions/fablabchemnitz/hlines/.gitattributes vendored Normal file
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# Auto detect text files and perform LF normalization
* text=auto

26
extensions/fablabchemnitz/hlines/hlines.inx Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
<name>Unwind Paths (Hlines)</name>
<id>fablabchemnitz.de.hlines</id>
<param name="extrude" type="bool" gui-text="Extrude">false</param>
<param name="extrude_height" type="float" min="0.000" max="99999.000" precision="3" gui-text="Extrude height">10.000</param>
<param name="unit" gui-text="Unit" type="optiongroup" appearance="combo">
<option value="mm">mm</option>
<option value="cm">cm</option>
<option value="m">m</option>
<option value="in">in</option>
<option value="pt">pt</option>
<option value="px">px</option>
</param>
<effect>
<object-type>all</object-type>
<effects-menu>
<submenu name="FabLab Chemnitz">
<submenu name="Shape/Pattern from existing Path(s)"/>
</submenu>
</effects-menu>
</effect>
<script>
<command location="inx" interpreter="python">hlines.py</command>
</script>
</inkscape-extension>

146
extensions/fablabchemnitz/hlines/hlines.py Normal file
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#!/usr/bin/env python3
# coding=utf-8
#
# Copyright (C) [2021] [Joseph Zakar], [observing@gmail.com]
#
# 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
"""
For each selected path element, this extension creates an additional path element
consisting of horizontal line segments which are the same size as the original
line segments.
17.05.2021: Mario Voigt: added option to extrude as a band (add height; adds vertical lines and another horizontal path)
"""
import inkex
from lxml import etree
import math
class HLines(inkex.EffectExtension):
def add_arguments(self, pars):
pars.add_argument('--extrude', type=inkex.Boolean, default=False)
pars.add_argument('--extrude_height', type=float, default=10.000)
pars.add_argument('--unit', default="mm")
#draw an SVG line segment between the given (raw) points
def drawline(self, pathData, name, parent):
line_style = {'stroke':'#000000','stroke-width':'1px','fill':'none'}
line_attribs = {'style' : str(inkex.Style(line_style)),
inkex.addNS('label','inkscape') : name,
'd' : pathData}
line = etree.SubElement(parent, inkex.addNS('path','svg'), line_attribs )
def effect(self):
path_num = 0
#for elem in self.svg.get_selected(): # for each selected element (Ver. 1.0)
for elem in self.svg.selection.filter(inkex.PathElement).values(): # for each selected element (Ver. 1.02+)
#inkex.utils.debug(type(elem))
#inkex.utils.debug(elem.bounding_box())
#inkex.utils.debug(elem.path)
elemGroup = self.svg.get_current_layer().add(inkex.Group(id="unwinding-" + elem.get('id'))) #make a new group at root level
if elem.typename == 'PathElement': # Only process path elements
xbound,ybound = elem.bounding_box() # Get bounds of this element
xmin,xmax = xbound
ymin,ymax = ybound
ntotal = len(elem.path)
nodecnt = 0
startx = 0
starty = ymax + 10
endx = 0
endy = starty
xoffset = 0
orig_sx = 0
orig_sy = 0
orig_ex = 0
orig_ey = 0
sx1 = 0
sy1 = 0
orig_length = 0
last_letter = 'M'
TopCommandSet = ""
DownCommandSet = ""
shifting = self.svg.unittouu(str(self.options.extrude_height) + self.options.unit)
for ptoken in elem.path.to_absolute(): # For each point in the path
#inkex.utils.debug(type(ptoken))
#inkex.utils.debug(ptoken)
startx = xmin + xoffset
if ptoken.letter == 'M': # Starting a new line
orig_sx = ptoken.x
orig_sy = ptoken.y
TopCommandSet = 'M {:0.6f},{:0.6f}'.format(startx, starty)
DownCommandSet = 'M {:0.6f},{:0.6f}'.format(startx, starty + shifting)
sx1 = orig_sx
sy1 = orig_sy
if self.options.extrude is True:
self.drawline("M {:0.6f},{:0.6f} L {:0.6f},{:0.6f}".format(sx1, endy, sx1 , endy + shifting),"vline{0}".format(path_num), elemGroup)
else:
if last_letter != 'M':
orig_sx = orig_ex
orig_sy = orig_ey
if ptoken.letter == 'L':
orig_ex = ptoken.x
orig_ey = ptoken.y
orig_length = math.sqrt((orig_sx-orig_ex)**2 + (orig_sy-orig_ey)**2)
endx = startx + orig_length
TopCommandSet = TopCommandSet + ' L {:0.6f},{:0.6f}'.format(endx, endy)
DownCommandSet = DownCommandSet + ' L {:0.6f},{:0.6f}'.format(endx, endy + shifting)
elif ptoken.letter == 'H':
if last_letter == 'M':
orig_ey = orig_sy
orig_length = abs(orig_sx - ptoken.x)
orig_ex = ptoken.x
endx = startx + orig_length
TopCommandSet = TopCommandSet + ' L {:0.6f},{:0.6f}'.format(endx, endy)
DownCommandSet = DownCommandSet + ' L {:0.6f},{:0.6f}'.format(endx, endy + shifting)
elif ptoken.letter == 'V':
if last_letter == 'M':
orig_ex = orig_sx
orig_length = abs(orig_sy - ptoken.y)
orig_ey = ptoken.y
endx = startx + orig_length
TopCommandSet = TopCommandSet + ' L {:0.6f},{:0.6f}'.format(endx, endy)
DownCommandSet = DownCommandSet + ' L {:0.6f},{:0.6f}'.format(endx, endy + shifting)
elif ptoken.letter == 'Z':
orig_ex = sx1
orig_ey = sy1
orig_length = math.sqrt((orig_sx-orig_ex)**2 + (orig_sy-orig_ey)**2)
endx = startx + orig_length
TopCommandSet = TopCommandSet + ' L {:0.6f},{:0.6f}'.format(endx, endy)
DownCommandSet = DownCommandSet + ' L {:0.6f},{:0.6f}'.format(endx, endy + shifting)
else:
inkex.utils.debug("Unknown letter - {0}".format(ptoken.letter))
inkex.utils.debug("Path may not contain bezier type commands. Convert to polyline before!")
exit(1)
if self.options.extrude is True:
self.drawline("M {:0.6f},{:0.6f} L {:0.6f},{:0.6f}".format(endx, endy, endx , endy + shifting),"vline{0}".format(path_num), elemGroup)
nodecnt = nodecnt + 1
if ptoken.letter != 'M':
if nodecnt == ntotal:
self.drawline(TopCommandSet,"hline{0}".format(path_num), elemGroup)
if self.options.extrude is True:
self.drawline(DownCommandSet,"hline{0}".format(path_num), elemGroup)
path_num = path_num + 1
xoffset = xoffset + orig_length
last_letter = ptoken.letter
if __name__ == '__main__':
HLines().run()

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extensions/fablabchemnitz/validate.sh Executable file
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#!/bin/bash
echo "Validating inx files with xmllint. Only errors are printed to console"
for folder in */ ; do xmllint --noout --relaxng ./inkscape.extension.rng $folder*.inx > /dev/null 2>> 000_xmllint.out; done; grep -v "validates\|warning: failed to load external entity" 000_xmllint.out; rm 000_xmllint.out
echo "Count of inx files:"
find ./ -type f -name "*.inx" | wc -l
echo "Count of extension folders:"
ls -d */ | wc -l