def nest(output, files, wbin, hbin, enclosing_rectangle=False):
packer = newPacker()
def float2dec(x):
return _float2dec(x, 4)
def bbox_paths(paths):
bbox = None
for p in paths:
p_bbox = p.bbox()
if bbox is None:
bbox = p_bbox
else:
bbox = (min(p_bbox[0], bbox[0]), max(p_bbox[1], bbox[1]),
min(p_bbox[2], bbox[2]), max(p_bbox[3], bbox[3]))
return tuple(float2dec(x) for x in bbox)
all_paths = {}
for svg\
in files:
paths, attributes = svg2paths(svg)
bbox = bbox_paths(paths)
for i in range(files[svg]):
rid = svg + str(i)
all_paths[rid] = {'paths': paths, 'bbox': bbox}
print(rid)
packer.add_rect(bbox[1] - bbox[0], bbox[3] - bbox[2], rid=rid)
print('Rectangle packing...')
while True:
packer.add_bin(wbin, hbin)
packer.pack()
rectangles = {r[5]: r for r in packer.rect_list()}
if len(rectangles) == len(all_paths):
break
else:
print('not enough space in the bin, adding ')
combineds = {}
print('packing into SVGs...')
for rid, obj in all_paths.items():
paths = obj['paths']
bbox = obj['bbox']
group = Group()
width, height = (float2dec(bbox[1] - bbox[0]),
float2dec(bbox[3] - bbox[2]))
bin, x, y, w, h, _ = rectangles[rid]
if bin not in combineds:
svg_file = output
if bin != 0:
splitext = os.path.splitext(svg_file)
svg_file = splitext[0] + '.%s' % bin + splitext[1]
dwg = Drawing(svg_file,
profile='tiny',
size=('%smm' % wbin, '%smm' % hbin),
viewBox="0 0 %s %s" % (wbin, hbin))
combineds[bin] = dwg
combined = combineds[bin]
if (width > height and w > h) or \
(width < height and w < h) or \
(width == height and w == h):
rotate = 0
dx = -bbox[0]
dy = -bbox[2]
else:
rotate = 90
dx = -bbox[2]
dy = -bbox[0]
for p in paths:
path = Path(d=p.d())
path.stroke(color='red', width='1')
path.fill(opacity=0)
group.add(path)
group.translate(x + dx, y + dy)
group.rotate(rotate)
combined.add(group)
for combined in combineds.values():
if enclosing_rectangle:
r = Rect(size=(wbin, hbin))
r.fill(opacity=0)
r.stroke(color='lightgray')
combined.add(r)
print('SVG saving...')
combined.save(pretty=True)
