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#!/usr/bin/python
#
# Important resources:
# lxml interface for walking SVG tree:
# http://codespeak.net/lxml/tutorial.html#elementpath
# Inkscape library for extracting paths from SVG:
# http://wiki.inkscape.org/wiki/index.php/Python_modules_for_extensions#simplepath.py
# Shapely computational geometry library:
# http://gispython.org/shapely/manual.html#multipolygons
# Embroidery file format documentation:
# http://www.achatina.de/sewing/main/TECHNICL.HTM
import sys
import traceback
sys.path.append("/usr/share/inkscape/extensions")
import os
import inkex
import inkstitch
from inkstitch import _, PIXELS_PER_MM
from inkstitch.extensions import InkstitchExtension
from inkstitch.stitch_plan import patches_to_stitch_plan
from inkstitch.svg import render_stitch_plan
class Embroider(InkstitchExtension):
def __init__(self, *args, **kwargs):
InkstitchExtension.__init__(self)
self.OptionParser.add_option("-c", "--collapse_len_mm",
action="store", type="float",
dest="collapse_length_mm", default=3.0,
help="max collapse length (mm)")
self.OptionParser.add_option("--hide_layers",
action="store", type="choice",
choices=["true", "false"],
dest="hide_layers", default="true",
help="Hide all other layers when the embroidery layer is generated")
self.OptionParser.add_option("-O", "--output_format",
action="store", type="string",
dest="output_format", default="csv",
help="Output file extenstion (default: csv)")
self.OptionParser.add_option("-P", "--path",
action="store", type="string",
dest="path", default=".",
help="Directory in which to store output file")
self.OptionParser.add_option("-F", "--output-file",
action="store", type="string",
dest="output_file",
help="Output filename.")
self.OptionParser.add_option("-b", "--max-backups",
action="store", type="int",
dest="max_backups", default=5,
help="Max number of backups of output files to keep.")
self.OptionParser.usage += _("\n\nSeeing a 'no such option' message? Please restart Inkscape to fix.")
def get_output_path(self):
if self.options.output_file:
output_path = os.path.join(self.options.path, self.options.output_file)
else:
svg_filename = self.document.getroot().get(inkex.addNS('docname', 'sodipodi'), "embroidery.svg")
csv_filename = svg_filename.replace('.svg', '.%s' % self.options.output_format)
output_path = os.path.join(self.options.path, csv_filename)
def add_suffix(path, suffix):
if suffix > 0:
path = "%s.%s" % (path, suffix)
return path
def move_if_exists(path, suffix=0):
source = add_suffix(path, suffix)
if suffix >= self.options.max_backups:
return
dest = add_suffix(path, suffix + 1)
if os.path.exists(source):
move_if_exists(path, suffix + 1)
if os.path.exists(dest):
os.remove(dest)
os.rename(source, dest)
move_if_exists(output_path)
return output_path
def effect(self):
if not self.get_elements():
return
if self.options.hide_layers:
self.hide_all_layers()
patches = self.elements_to_patches(self.elements)
stitch_plan = patches_to_stitch_plan(patches, self.options.collapse_length_mm * PIXELS_PER_MM)
inkstitch.write_embroidery_file(self.get_output_path(), stitch_plan, self.document.getroot())
render_stitch_plan(self.document.getroot(), stitch_plan)
if __name__ == '__main__':
sys.setrecursionlimit(100000)
e = Embroider()
try:
e.affect()
except KeyboardInterrupt:
# for use at the command prompt for debugging
print >> sys.stderr, "interrupted!"
print >> sys.stderr, traceback.format_exc()
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