Mercurial > hg-public > lasercut-scripts / file comparison
comparison: svg2gcode/svg2gcode.py
svg2gcode/svg2gcode.py
- changeset 4
- 234ad2069fdd
- child 5
- b41cdab37aab
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| 3:a519e3ac3849 | 4:234ad2069fdd |
|---|---|
| 1 #!/usr/bin/env python | |
| 2 import svg, sys | |
| 3 from gcode import Gcode | |
| 4 from optparse import OptionParser | |
| 5 | |
| 6 parser = OptionParser() | |
| 7 parser.add_option("-f", "--file", dest="filename", default=None, | |
| 8 help="Load SVG file", metavar="FILE") | |
| 9 parser.add_option("-s", "--scale", | |
| 10 dest="scale", type="float", default=1.0, | |
| 11 help="set scale factor (default 1.0)") | |
| 12 parser.add_option("-e", "", | |
| 13 dest="engrave_speed", type="float", default=20, | |
| 14 help="engrave speed mm/sec (default 20)") | |
| 15 parser.add_option("-t", "", | |
| 16 dest="travel_speed", type="float", default=130, | |
| 17 help="travel speed mm/sec (default 130)") | |
| 18 | |
| 19 | |
| 20 (options, args) = parser.parse_args() | |
| 21 | |
| 22 | |
| 23 if not options.filename: | |
| 24 print "no filename given!" | |
| 25 sys.exit(1) | |
| 26 | |
| 27 gcode = Gcode(scale=options.scale, travel_speed=options.travel_speed, engrave_speed=options.engrave_speed) | |
| 28 | |
| 29 im = svg.parse(options.filename) | |
| 30 b1, b2 = im.bbox() | |
| 31 width, height = b2.coord() | |
| 32 print "Original dimension: %.2f x %.2f" % (width, height) | |
| 33 width *= gcode.mm_pixel * options.scale | |
| 34 height *= gcode.mm_pixel * options.scale | |
| 35 print "Print dimension: %.2fmm x %.2fmm" % (width, height) | |
| 36 | |
| 37 def normalize(coord): | |
| 38 x = coord[0] | |
| 39 y = coord[1] | |
| 40 # flip y | |
| 41 y = (b2.coord()[1] - y) | |
| 42 return (x, y) | |
| 43 | |
| 44 data = im.flatten() | |
| 45 for d in data: | |
| 46 if hasattr(d, "segments"): | |
| 47 for l in d.segments(1): | |
| 48 x, y = normalize(l[0].coord()) | |
| 49 gcode.move(x, y) | |
| 50 for pt in l[1:]: | |
| 51 x, y = normalize(pt.coord()) | |
| 52 gcode.engrave(x, y) | |
| 53 | |
| 54 # write gcode file | |
| 55 gcode.write(options.filename + ".g") |
