Mercurial > hg-public > lasercut-scripts / file comparison
comparison: svg2gcode/svg2gcode.py
svg2gcode/svg2gcode.py
- changeset 7
- 421aae29d9d9
- parent 6
- ff679c15cb0e
- child 8
- 86f90bddac0f
equal
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replaced
| 6:ff679c15cb0e | 7:421aae29d9d9 |
|---|---|
| 1 #!/usr/bin/env python | 1 #!/usr/bin/env python |
| 2 # -*- coding: utf-8 -*- | 2 # -*- coding: utf-8 -*- |
| 3 | 3 |
| 4 import svg, sys | 4 import svg, sys |
| 5 import cairo | |
| 5 from gcode import Gcode | 6 from gcode import Gcode |
| 6 from optparse import OptionParser | 7 from optparse import OptionParser |
| 7 from tinycss import CSS21Parser | 8 from tinycss import CSS21Parser |
| 8 | 9 |
| 9 from shapely.geometry import box, MultiLineString, Point, Polygon | 10 from shapely.geometry import box, MultiLineString, MultiPolygon, Polygon |
| 10 from shapely.affinity import rotate | 11 from shapely.affinity import rotate |
| 11 from shapely import speedups | 12 from shapely import speedups |
| 12 from math import sqrt | 13 from math import sqrt |
| 13 | 14 |
| 14 # enable Shapely speedups, if possible | 15 # enable Shapely speedups, if possible |
| 60 # Rotate by angle around box centre | 61 # Rotate by angle around box centre |
| 61 lines = rotate(lines, angle, origin='centroid', use_radians=False) | 62 lines = rotate(lines, angle, origin='centroid', use_radians=False) |
| 62 # return clipped array | 63 # return clipped array |
| 63 return rect.intersection(lines) | 64 return rect.intersection(lines) |
| 64 | 65 |
| 65 def get_infill(polygon): | |
| 66 # create shape from polygon: | |
| 67 segments = [] | |
| 68 for pnt in polygon: | |
| 69 x, y = pnt.coord() | |
| 70 segments.append((x, y)) | |
| 71 | |
| 72 shape = Polygon(segments) | |
| 73 if shape.is_valid: | |
| 74 return shape.intersection(INFILL) | |
| 75 else: | |
| 76 return [] | |
| 77 | 66 |
| 78 parser = OptionParser() | 67 parser = OptionParser() |
| 79 parser.add_option("-f", "--file", dest="filename", default=None, | 68 parser.add_option("-f", "--file", dest="filename", default=None, |
| 80 help="Load SVG file", metavar="FILE") | 69 help="Load SVG file", metavar="FILE") |
| 81 parser.add_option("-s", "--scale", | 70 parser.add_option("-s", "--scale", |
| 143 gcode.engrave(x, y) | 132 gcode.engrave(x, y) |
| 144 | 133 |
| 145 if options.outline: | 134 if options.outline: |
| 146 continue | 135 continue |
| 147 | 136 |
| 148 if (isinstance(d, svg.Polygon) or isinstance(d, svg.Path)): | 137 if (isinstance(d, svg.Polygon) or isinstance(d, svg.Path)): |
| 149 #check if we shoild infill? | 138 #check if we shoild infill? |
| 150 style = parse_style(d.style) | 139 style = parse_style(d.style) |
| 151 if not style: | 140 if not style: |
| 152 continue | 141 continue |
| 153 if not 'fill' in style.keys(): | 142 if not 'fill' in style.keys(): |
| 154 continue | 143 continue |
| 155 if style['fill'] == 'none': | 144 if style['fill'] == 'none': |
| 156 continue | 145 continue |
| 157 | 146 |
| 147 poly = None | |
| 148 for l in d.segments(1): | |
| 149 # create shape from polygon: | |
| 150 segments = [] | |
| 151 for pnt in l: | |
| 152 x, y = pnt.coord() | |
| 153 segments.append((x, y)) | |
| 154 shape = Polygon(segments) | |
| 155 if shape.is_valid: | |
| 156 if not poly: | |
| 157 poly = shape | |
| 158 else: | |
| 159 if shape.within(poly): | |
| 160 poly = poly.difference(shape) | |
| 161 else: | |
| 162 poly = poly.union(shape) | |
| 163 | |
| 164 lines = poly.intersection(INFILL) | |
| 165 if lines: | |
| 158 # THE INFILL | 166 # THE INFILL |
| 159 for line in get_infill(l): | 167 for line in lines: |
| 160 start = normalize((line.coords[0][0], line.coords[0][1])) | 168 start = normalize((line.coords[0][0], line.coords[0][1])) |
| 161 end = normalize((line.coords[1][0], line.coords[1][1])) | 169 end = normalize((line.coords[1][0], line.coords[1][1])) |
| 162 gcode.move(start[0], start[1]) | 170 gcode.move(start[0], start[1]) |
| 163 gcode.engrave(end[0], end[1]) | 171 gcode.engrave(end[0], end[1]) |
| 164 | 172 |
