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import pyembroidery
import sys
import simpletransform
from .commands import global_command
from .i18n import _
from .svg import PIXELS_PER_MM, get_doc_size, get_viewbox_transform
from .utils import Point
def get_command(stitch):
if stitch.jump:
return pyembroidery.JUMP
elif stitch.trim:
return pyembroidery.TRIM
elif stitch.color_change:
return pyembroidery.COLOR_CHANGE
elif stitch.stop:
return pyembroidery.STOP
else:
return pyembroidery.NEEDLE_AT
def _string_to_floats(string):
floats = string.split(',')
return [float(num) for num in floats]
def get_origin(svg):
origin_command = global_command(svg, "origin")
if origin_command:
return origin_command.point
else:
# default: center of the canvas
doc_size = list(get_doc_size(svg))
# convert the size from viewbox-relative to real-world pixels
viewbox_transform = get_viewbox_transform(svg)
simpletransform.applyTransformToPoint(simpletransform.invertTransform(viewbox_transform), doc_size)
default = [doc_size[0] / 2.0, doc_size[1] / 2.0]
simpletransform.applyTransformToPoint(viewbox_transform, default)
default = Point(*default)
return default
def jump_to_stop_point(pattern, svg):
stop_position = global_command(svg, "stop_position")
if stop_position:
pattern.add_stitch_absolute(pyembroidery.JUMP, stop_position.point.x, stop_position.point.y)
def write_embroidery_file(file_path, stitch_plan, svg, settings={}):
origin = get_origin(svg)
pattern = pyembroidery.EmbPattern()
for color_block in stitch_plan:
pattern.add_thread(color_block.color.pyembroidery_thread)
for stitch in color_block:
if stitch.stop:
jump_to_stop_point(pattern, svg)
command = get_command(stitch)
pattern.add_stitch_absolute(command, stitch.x, stitch.y)
pattern.add_stitch_absolute(pyembroidery.END, stitch.x, stitch.y)
# convert from pixels to millimeters
# also multiply by 10 to get tenths of a millimeter as required by pyembroidery
scale = 10 / PIXELS_PER_MM
settings.update({
# correct for the origin
"translate": -origin,
# convert from pixels to millimeters
# also multiply by 10 to get tenths of a millimeter as required by pyembroidery
"scale": (scale, scale),
# This forces a jump at the start of the design and after each trim,
# even if we're close enough not to need one.
"full_jump": True,
})
if file_path.endswith('.csv'):
# Special treatment for CSV: instruct pyembroidery not to do any post-
# processing. This will allow the user to match up stitch numbers seen
# in the simulator with commands in the CSV.
settings['max_stitch'] = float('inf')
settings['max_jump'] = float('inf')
settings['explicit_trim'] = False
try:
pyembroidery.write(pattern, file_path, settings)
except IOError as e:
# L10N low-level file error. %(error)s is (hopefully?) translated by
# the user's system automatically.
print >> sys.stderr, _("Error writing to %(path)s: %(error)s") % dict(path=file_path, error=e.strerror)
sys.exit(1)
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