95 lines
3.4 KiB
Python
Executable file
95 lines
3.4 KiB
Python
Executable file
#!/usr/bin/env python3
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# coding=utf-8
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#
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# Copyright (C) 2005 Aaron Spike, aaron@ekips.org
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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import math
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import inkex
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from inkex import TextElement, Circle
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from inkex.localization import inkex_gettext as _
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class NumberNodes(inkex.EffectExtension):
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"""Replace the selection's nodes with numbered dots according to the options"""
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def add_arguments(self, pars):
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pars.add_argument(
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"--dotsize", default="10px", help="Size of the dots on the path nodes"
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)
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pars.add_argument("--fontsize", default="20px", help="Size of node labels")
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pars.add_argument(
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"--start", type=int, default=1, help="First number in the sequence"
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)
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pars.add_argument(
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"--step", type=int, default=1, help="Numbering step between two nodes"
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)
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pars.add_argument("--tab", help="The selected UI-tab when OK was pressed")
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def effect(self):
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filtered = self.svg.selection.filter(inkex.PathElement)
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if not filtered:
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raise inkex.AbortExtension(_("Please select at least one path object."))
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for node in filtered:
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self.add_dot(node)
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def add_dot(self, node: inkex.PathElement):
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"""Add a dot label for this path element"""
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group: inkex.Group = node.getparent().add(inkex.Group())
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dot_group = group.add(inkex.Group())
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num_group = group.add(inkex.Group())
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path_trans_applied = node.path.transform(node.composed_transform())
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group.transform = -node.getparent().composed_transform()
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style = inkex.Style({"stroke": "none", "fill": "#000"})
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for step, (x, y) in enumerate(path_trans_applied.end_points):
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circle = dot_group.add(
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Circle(
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cx=str(x),
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cy=str(y),
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r=str(self.svg.unittouu(self.options.dotsize) / 2),
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)
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)
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circle.style = style
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num_group.append(
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self.add_text(
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x + (self.svg.unittouu(self.options.dotsize) / 2),
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y - (self.svg.unittouu(self.options.dotsize) / 2),
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self.options.start + (self.options.step * step),
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)
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)
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node.delete()
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def add_text(self, x, y, text):
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"""Add a text label at the given location"""
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elem = TextElement(x=str(x), y=str(y))
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elem.text = str(text)
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elem.style = {
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"font-size": self.svg.unittouu(self.options.fontsize),
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"fill-opacity": "1.0",
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"stroke": "none",
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"font-weight": "normal",
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"font-style": "normal",
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"fill": "#999",
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}
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return elem
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if __name__ == "__main__":
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NumberNodes().run()
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