1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
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()
|
