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Diffstat (limited to '')
| -rwxr-xr-x | share/extensions/dxf12_outlines.py | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/share/extensions/dxf12_outlines.py b/share/extensions/dxf12_outlines.py new file mode 100755 index 0000000..504a64d --- /dev/null +++ b/share/extensions/dxf12_outlines.py @@ -0,0 +1,156 @@ +#!/usr/bin/env python +# coding=utf-8 +# +# Copyright (C) 2005,2007 Aaron Spike, aaron@ekips.org +# - template dxf_outlines.dxf added Feb 2008 by Alvin Penner, penner@vaxxine.com +# - layers, transformation, flattening added April 2008 by Bob Cook, bob@bobcookdev.com +# - added support for dxf R12, Nov. 2008 by Switcher +# - brought together to replace ps2edit version 2018 by Martin Owens +# +# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +# + +from __future__ import absolute_import, print_function, unicode_literals + +import re + +import inkex +import inkex.units +from inkex.bezier import cspsubdiv + +r12_header = """ 0 +SECTION + 2 +HEADER + 9 +$ACADVER + 1 +AC1009 + 9 +$EXTMIN + 10 + 0 + 20 + 0 + 9 +$EXTMAX + 10 + 8.5 + 20 + 11 + 0 +ENDSEC + 0 +SECTION + 2 +ENTITIES +""" + +r12_footer = """ 0 +ENDSEC + 0 +EOF""" + + +class DxfTwelve(inkex.OutputExtension): + """Create dxf12 output from the svg""" + + def __init__(self): + super(DxfTwelve, self).__init__() + self.handle = 255 + self.flatness = 0.1 + + def dxf_add(self, line): + self._stream.write(line.encode("utf-8")) + + def dxf_insert_code(self, code, value): + self.dxf_add(code + "\n" + value + "\n") + + def dxf_line(self, layer, csp): + self.dxf_insert_code("0", "LINE") + self.dxf_insert_code("8", layer) + # self.dxf_insert_code( '62', '1' ) #Change the Line Color + self.dxf_insert_code("10", "{:f}".format(csp[0][0])) + self.dxf_insert_code("20", "{:f}".format(csp[0][1])) + self.dxf_insert_code("11", "{:f}".format(csp[1][0])) + self.dxf_insert_code("21", "{:f}".format(csp[1][1])) + + def dxf_path_to_lines(self, layer, p): + f = self.flatness + is_flat = 0 + while is_flat < 1: + try: + cspsubdiv(p, self.flatness) + is_flat = 1 + except: + f += 0.1 + + for sub in p: + for i in range(len(sub) - 1): + self.handle += 1 + s = sub[i] + e = sub[i + 1] + self.dxf_line(layer, [s[1], e[1]]) + + def dxf_path_to_point(self, layer, p): + bbox = inkex.Path(p).bounding_box() or inkex.BoundingBox(0, 0) + x, y = bbox.center + self.dxf_point(layer, x, y) + + def save(self, stream): + self._stream = stream + self.dxf_insert_code("999", '"DXF R12 Output" (www.mydxf.blogspot.com)') + self.dxf_add(r12_header) + + # Scale, but assume that the viewport is based on mm (dxf expects mm) + scale = self.svg.scale / inkex.units.convert_unit("1mm", "px") + h = self.svg.viewbox_height + + path = "//svg:path" + for node in self.svg.xpath(path): + visible = True + for parent in node.iterancestors(): + if isinstance(parent, (inkex.ClipPath, inkex.Mask)): + visible = False + break + if not visible: + continue + + layer = ( + node.getparent().label + ) # TODO this assumes that all elements are direct + # descendants of layers + if layer is None: + layer = "Layer 1" + + node.transform = node.composed_transform() + node.transform = ( + inkex.Transform([[scale, 0, 0], [0, -scale, h * scale]]) + @ node.transform + ) + node.apply_transform() + path = node.path.to_superpath() + + if re.search("drill$", layer, re.I) is None: + # if layer == 'Brackets Drill': + self.dxf_path_to_lines(layer, path) + else: + self.dxf_path_to_point(layer, path) + + self.dxf_add(r12_footer) + + +if __name__ == "__main__": + DxfTwelve().run() |