/
svg2png.py
154 lines (116 loc) · 3.95 KB
/
svg2png.py
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
#-*- coding:utf-8 -*-
u'''
Slic3r で出力された SVG ﾌｧｲﾙを PNGﾌｧｲﾙへ変換する
'''
import os
import sys
import re
import math
import argparse
from xml.etree import ElementTree as ET
from PIL import Image, ImageDraw
import cairosvg
re_pat = re.compile('\{.*?\}')
root = None
#dot = 0.0423
dot = 0.1
svg_xmlns = '\"http://www.w3.org/2000/svg\"'
svg_header = ''
parser = argparse.ArgumentParser(description='This script is ...')
parser.add_argument('svg_file', action='store', nargs=None, const=None,default=None,type=str,choices=None,help='SVG filename',metavar=None)
parser.add_argument('-o', '--output',action='store', nargs=1, const=None,default=None,type=str,choices=None,help='output filename',metavar=None)
parser.add_argument('-s', '--start', action='store', nargs=None, type=int, default=0, help='Start Layer number')
parser.add_argument('-e', '--end', action='store', nargs=None, type=int, default=-1,help='End Layer number')
parser.add_argument('-d', '--debug', action='store_true', default=False, help='debug mode if this flag is set (default:False)')
def load_xml(fileName):
u'''
SVG ﾌｧｲﾙを読み込む
'''
global root
try:
tree = ET.parse(fileName)
root = tree.getroot()
except IOError:
print '{0} not found'.format(fileName)
def str2png(svg_str, out_file):
u'''
SVG 文字列を PNG ﾌｧｲﾙへ出力する
'''
global svg_header
svg = svg_header + svg_str + '</svg>'
#print svg
cairosvg.svg2png(bytestring=svg,write_to=out_file)
def layer_to_image(elements, out_file):
u'''
SVG ﾌｧｲﾙの各層 <g> を処理する
elements = [<g>] <g> Elementのﾘｽﾄ
'''
svg_str = ''
for elem in elements:
tg = re.sub(re_pat,'',elem.tag)
hd = '<' + tg
attr = ''
for key in elem.attrib.keys():
kk = re.sub(re_pat,'',key)
vv = re.sub(re_pat,'', elem.attrib[key])
if kk == 'points':
# 座標がmmなので、ﾄﾞｯﾄ単位に変換する
vs = ''
kl = vv.split(' ')
for v in kl:
v2 = v.split(',')
vx = int( float(v2[0]) / dot)
vy = int( float(v2[1]) / dot)
s2 = ' ' + str(vx) + ',' + str(vy)
vs += s2
vv = vs
ss = ' ' + kk + '=\"' + vv + '\"'
attr += ss
svg_tag = hd + attr + ' />'
#print svg_tag
svg_str += svg_tag
str2png(svg_str,out_file)
def convert(out_file, startLayer = 0, endLayer = 0):
u'''
読み込んだSVG を PNG に展開する
startLayer: 開始ﾚｲﾔｰ
endLayer: 終了ﾚｲﾔｰ
'''
global root
global svg_header
if root == None:
print u'SVG ﾌｧｲﾙが読み込まれていません'
return
width = ' width=\"' + str( int(float(root.attrib['width']) / dot) ) + '\"'
height= ' height=\"' + str( int(float(root.attrib['height'])/ dot) ) + '\"'
xmlns = ' xmlns=' + svg_xmlns + ' xmlns:svg=' + svg_xmlns
svg_header = '<' + re.sub(re_pat,'',root.tag) + width + height + xmlns + '>'
if endLayer == 0:
endLayer = len(root)
if startLayer > endLayer:
st = startLayer
startLayer = endLayer
endLayer = st
if startLayer < 0 or startLayer > len(root):
print 'out of layer Total={0} start={1} end={2}'.format( len(root), startLayer,endLayer)
return
if endLayer < 0 or endLayer > len(root):
print 'out of layer Total={0} start={1} end={2}'.format( len(root), startLayer,endLayer)
return
print 'Total:{0} layer {1}-{2}'.format(len(root),startLayer,endLayer)
path,ext = os.path.splitext(out_file)
for num,tag in enumerate(root[startLayer:endLayer]):
tt = re.split(re_pat,tag.tag)
if tt[1] == 'g':
file = path + str(num+startLayer) + ext
layer_to_image( tag.getchildren(), file )
else:
print 'Unsupport tag:{0}'.format(tt[1])
##########################################################
def test(in_file, out_file, startLayer = 0, endLayer = -1):
load_xml(in_file)
convert(out_file, startLayer, endLayer)
##########################################################
if __name__ == '__main__':
args = parser.parse_args()
test(args.svg_file,args.output[0],args.start,args.end)