kopia lustrzana https://github.com/inkstitch/inkstitch
65 wiersze
2.7 KiB
Python
65 wiersze
2.7 KiB
Python
# Authors: see git history
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#
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# Copyright (c) 2023 Authors
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# Licensed under the GNU GPL version 3.0 or later. See the file LICENSE for details.
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from inkex import DirectedLineSegment, PathElement, errormsg
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from ..i18n import _
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from ..svg import PIXELS_PER_MM, get_correction_transform
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from ..svg.tags import INKSTITCH_ATTRIBS
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from .base import InkstitchExtension
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class JumpToStroke(InkstitchExtension):
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"""Adds a running stitch as a connection between two (or more) selected elements.
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The elements must have the same color and a minimum distance (collapse_len)."""
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def __init__(self, *args, **kwargs):
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InkstitchExtension.__init__(self, *args, **kwargs)
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self.arg_parser.add_argument("-l", "--stitch-length", type=float, default=2.5, dest="running_stitch_length_mm")
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self.arg_parser.add_argument("-t", "--tolerance", type=float, default=2.0, dest="running_stitch_tolerance_mm")
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def effect(self):
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if not self.svg.selection or not self.get_elements() or len(self.elements) < 2:
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errormsg(_("Please select at least two elements to convert the jump stitch to a running stitch."))
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return
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last_stitch_group = None
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last_color = None
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for element in self.elements:
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stitch_group = element.to_stitch_groups(last_stitch_group)
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end = stitch_group[-1].stitches[0]
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if last_stitch_group is not None and element.color == last_color:
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start = last_stitch_group.stitches[-1]
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self.generate_stroke(element, start, end)
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last_stitch_group = stitch_group[-1]
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last_color = element.color
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def generate_stroke(self, element, start, end):
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node = element.node
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parent = node.getparent()
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index = parent.index(node)
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# do not add a running stitch if the distance is smaller than the collapse setting
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self.metadata = self.get_inkstitch_metadata()
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collapse_len = self.metadata['collapse_len_mm'] or 3.0
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collapse_len *= PIXELS_PER_MM
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line = DirectedLineSegment((start.x, start.y), (end.x, end.y))
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if collapse_len > line.length:
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return
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path = f'M {start.x}, {start.y} L {end.x}, {end.y}'
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color = element.color
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style = f'stroke:{color};stroke-width:1px;stroke-dasharray:3, 1;fill:none;'
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line = PathElement(d=path, style=style, transform=get_correction_transform(node))
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line.set(INKSTITCH_ATTRIBS['running_stitch_length_mm'], self.options.running_stitch_length_mm)
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line.set(INKSTITCH_ATTRIBS['running_stitch_tolerance_mm'], self.options.running_stitch_tolerance_mm)
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parent.insert(index, line)
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if __name__ == '__main__':
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JumpToStroke().run()
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