def __convert_to_svgpath(self):
location_A = (0 + 0j)
location_B = (self.xB + self.yB * self.thickness_ratio * 1j)
location_C = (1 + 0j)
location_D = (self.xD + (self.yB - 1.0) * self.thickness_ratio * 1j)
control_1 = (0 + self.y1 * location_B.imag * 1j)
control_2 = (self.x2 * location_B.real + location_B.imag * 1j)
control_3 = (self.x3 * (1.0 - location_B.real) + location_B.real +
location_B.imag * 1j)
control_6 = (self.x6 * (1.0 - location_D.real) + location_D.real +
location_D.imag * 1j)
control_7 = (self.x2 * location_D.real + location_D.imag * 1j)
control_8 = (0 + self.y8 * location_D.imag * 1j)
y4 = location_C.imag + self.y4 * (location_B.imag - location_C.imag)
x4 = location_C.real - self.x4 * (location_C.real - control_3.real)
control_4 = (x4 + y4 * 1j)
x5 = control_4.real - self.x5 * (control_4.real - control_6.real)
y5 = control_4.imag - self.y5 * (control_4.imag - control_6.imag)
control_5 = (x5 + y5 * 1j)
return svg.Path(
svg.CubicBezier(start=location_A,
control1=control_1,
control2=control_2,
end=location_B),
svg.CubicBezier(start=location_B,
control1=control_3,
control2=control_4,
end=location_C),
svg.CubicBezier(start=location_C,
control1=control_5,
control2=control_6,
end=location_D),
svg.CubicBezier(start=location_D,
control1=control_7,
control2=control_8,
end=location_A))
def fromCircleDef(cls, center: float, radius: float) -> 'SvgPath':
'''
PyCut Tab import in svg viewer
'''
NB_SEGMENTS = 12
angles = [
float(k * M_PI) / (NB_SEGMENTS) for k in range(NB_SEGMENTS * 2 + 1)
]
discretized_svg_path : List[complex] = [ complex( \
center[0] + radius*math.cos(angle),
center[1] + radius*math.sin(angle) ) for angle in angles]
svg_path = svgpathtools.Path()
for i in range(len(discretized_svg_path) - 1):
start = discretized_svg_path[i]
end = discretized_svg_path[i + 1]
svg_path.append(svgpathtools.Line(start, end))
return SvgPath("pycut_tab", {'d': svg_path.d()})
def add_fillet_to_path(self, d):
p = svgpathtools.parse_path(d)
p = remove_zero_length_segments(
p) # for z, a zero length line segment is possibly added
if len(p) <= 1:
return d
new_p = svgpathtools.Path()
self._prev_t = 0 # used as cache
self._very_first_t = None # update first segment if closed
if isclosedac(p):
for i in range(len(p)):
new_p.extend(self._calc_fillet_for_joint(p, i))
if not isclosedac(new_p):
del new_p[0] # remove first segment if closed
else:
for i in range(len(p) - 1):
new_p.extend(self._calc_fillet_for_joint(p, i))
new_p = round_path(new_p, 6)
# inkex.errormsg(d_str(new_p, use_closed_attrib=True, rel=True))
return d_str(new_p, use_closed_attrib=True, rel=True)
def colorize(args):
input_file = args.infile
output_file = args.outfile
if input_file == "" or output_file == "":
logging.error("Input or output file names are missing")
raise ValueError("Input and output files are needed")
logging.info("input file {} output file {}".format(input_file, output_file))
paths, attributes, svg_attributes = spt.svg2paths2(input_file)
# each segment must be a path in order to assign a color
new_paths = []
for path in paths:
for segment in path:
new_paths.append(spt.Path(segment))
nb_segments = len(new_paths)
col = ['r', 'g', 'b', 'k']
segment_col = ''.join([col[i % len(col)] for i in range(nb_segments)])
spt.wsvg(new_paths, colors=segment_col, stroke_widths=[2] * nb_segments, filename=output_file)
def _bbox(self):
return SPT.Path(self._path().d()).bbox()
def convert_and_write_svg(cubic, filename):
cubic_path = svgpathtools.Path(cubic)
cubic_ctrl = svgpathtools.Path(
svgpathtools.Line(cubic.start, cubic.control1),
svgpathtools.Line(cubic.control1, cubic.control2),
svgpathtools.Line(cubic.control2, cubic.end))
cubic_color = (50, 50, 200)
cubic_ctrl_color = (150, 150, 150)
r = 4.0
paths = [cubic_path, cubic_ctrl]
colors = [cubic_color, cubic_ctrl_color]
dots = [
cubic_path[0].start, cubic_path[0].control1, cubic_path[0].control2,
cubic_path[0].end
]
ncols = ['green', 'green', 'green', 'green']
nradii = [r, r, r, r]
stroke_widths = [3.0, 1.5]
def add_quadratic(q):
paths.append(q)
q_ctrl = svgpathtools.Path(svgpathtools.Line(q.start, q.control),
svgpathtools.Line(q.control, q.end))
paths.append(q_ctrl)
colors.append((200, 50, 50)) # q_color
colors.append((150, 150, 150)) # q_ctrl_color
dots.append(q.start)
dots.append(q.control)
dots.append(q.end)
ncols.append('purple')
ncols.append('purple')
ncols.append('purple')
nradii.append(r)
nradii.append(r)
nradii.append(r)
stroke_widths.append(3.0)
stroke_widths.append(1.5)
prec = 1.0
queue = [cubic]
num_quadratics = 0
while len(queue) > 0:
c = queue[-1]
queue = queue[:-1]
# Criteria for conversion
# http://caffeineowl.com/graphics/2d/vectorial/cubic2quad01.html
p = c.end - 3 * c.control2 + 3 * c.control1 - c.start
d = math.sqrt(p.real * p.real + p.imag * p.imag) * math.sqrt(3.0) / 36
t = math.pow(1.0 / d, 1.0 / 3.0)
if t < 1.0:
c0, c1 = split_cubic(c, 0.5)
queue.append(c0)
queue.append(c1)
else:
quadratic = cubic_to_quadratic(c)
print(quadratic)
add_quadratic(quadratic)
num_quadratics += 1
print('num_quadratics:', num_quadratics)
svgpathtools.wsvg(paths,
colors=colors,
stroke_widths=stroke_widths,
nodes=dots,
node_colors=ncols,
node_radii=nradii,
filename=filename)
def remove_zero_length_segments(p, eps=1e-6):
"z will add a zero length line segment"
return svgpathtools.Path(*filter(lambda seg: seg.length() > eps, p))
def _calc_fillet_for_joint(self, p, i):
seg1 = p[(i) % len(p)]
seg2 = p[(i + 1) % len(p)]
ori_p = svgpathtools.Path(seg1, seg2)
new_p = svgpathtools.Path()
# ignore the node if G1 continuity
tg1 = seg1.unit_tangent(1.0)
tg2 = seg2.unit_tangent(0.0)
cosA = abs(tg1.real * tg2.real + tg1.imag * tg2.imag)
if abs(cosA - 1.0) < 1e-6:
new_p.append(seg1.cropped(self._prev_t, 1.0))
self._prev_t = 0.0
if self._very_first_t is None:
self._very_first_t = 1.0
if not isclosedac(p) and i == len(p) - 2:
new_p.append(seg2.cropped(
0.0, 1.0)) # add last segment if not closed
else:
cir = self.circle(seg1.end, self.options.radius)
# new_p.extend(cir)
intersects = ori_p.intersect(cir)
if len(intersects) != 2:
inkex.errormsg(
"Some fillet or chamfer may not be drawn: %d intersections!"
% len(intersects))
new_p.append(seg1.cropped(self._prev_t, 1.0))
self._prev_t = 0.0
if self._very_first_t is None:
self._very_first_t = 1.0
if not isclosedac(p) and i == len(p) - 2:
new_p.append(seg2.cropped(
0.0, 1.0)) # add last segment if not closed
else:
cb = []
segs = []
ts = []
for (T1, seg1, t1), (T2, seg2, t2) in intersects:
c1 = seg1.point(t1)
tg1 = seg1.unit_tangent(t1) * (self.options.radius * KAPPA)
cb.extend([c1, tg1])
segs.append(seg1)
ts.append(t1)
# cir1 = self.circle(c1, self.options.radius * KAPPA)
# new_p.extend(cir1)
# new_p.append(svgpathtools.Line(c1, c1+tg1))
assert len(cb) == 4
new_p.append(segs[0].cropped(self._prev_t, ts[0]))
if self.options.fillet_type == 'fillet':
fillet = svgpathtools.CubicBezier(cb[0], cb[0] + cb[1],
cb[2] - cb[3], cb[2])
else:
fillet = svgpathtools.Line(cb[0], cb[2])
new_p.append(fillet)
self._prev_t = ts[1]
if self._very_first_t is None:
self._very_first_t = ts[0]
if isclosedac(p) and i == len(p) - 1:
new_p.append(segs[1].cropped(
ts[1],
self._very_first_t)) # update first segment if closed
elif not isclosedac(p) and i == len(p) - 2:
new_p.append(segs[1].cropped(
ts[1], 1.0)) # add last segment if not closed
# # fix for the first segment
# if p.isclosed():
# new_p[0] = p[0].cropped(ts[1], self._very_first_t)
# new_p.append(segs[0].cropped(ts[0], 1.0))
# new_p.append(segs[1].cropped(0.0, ts[1]))
# if self.options.fillet_type == 'fillet':
# fillet = svgpathtools.CubicBezier(cb[0], cb[0]+cb[1], cb[2]-cb[3], cb[2])
# else:
# fillet = svgpathtools.Line(cb[0], cb[2])
# new_p.append(fillet.reversed())
return new_p
def offset_paths(path, offset_distance, steps=100, debug=False):
"""Takes an svgpathtools.path.Path object, `path`, and a float
distance, `offset_distance`, and returns the parallel offset curves
(in the form of a list of svgpathtools.path.Path objects)."""
def is_enclosed(path, check_paths):
"""`path` is an svgpathtools.path.Path object, `check_paths`
is a list of svgpath.path.Path objects. This function returns
True if `path` lies inside any of the paths in `check_paths`,
and returns False if it lies outside all of them."""
seg = path[0]
point = seg.point(0.5)
for i in range(len(check_paths)):
test_path = check_paths[i]
if path == test_path:
continue
# find outside_point, which lies outside other_path
(xmin, xmax, ymin, ymax) = test_path.bbox()
outside_point = complex(xmax+100, ymax+100)
if svgpathtools.path_encloses_pt(point, outside_point, test_path):
if debug: print("point is within path", i, file=sys.stderr)
return True
return False
# This only works on closed paths.
if debug: print("input path:", file=sys.stderr)
if debug: print(path, file=sys.stderr)
if debug: print("offset:", offset_distance, file=sys.stderr)
assert(path.isclosed())
#
# First generate a list of Path elements (Lines and Arcs),
# corresponding to the offset versions of the Path elements in the
# input path.
#
if debug: print("generating offset segments...", file=sys.stderr)
offset_path_list = []
for seg in path:
if type(seg) == svgpathtools.path.Line:
start = seg.point(0) + (offset_distance * seg.normal(0))
end = seg.point(1) + (offset_distance * seg.normal(1))
offset_path_list.append(svgpathtools.Line(start, end))
if debug: print(" ", offset_path_list[-1], file=sys.stderr)
elif type(seg) == svgpathtools.path.Arc and (seg.radius.real == seg.radius.imag):
# Circular arcs remain arcs, elliptical arcs become linear
# approximations below.
#
# Polygons (input paths) are counter-clockwise.
#
# Positive offsets are to the inside of the polygon, negative
# offsets are to the outside.
#
# If this arc is counter-clockwise (sweep == False),
# *subtract* the `offset_distance` from its radius, so
# insetting makes the arc smaller and outsetting makes
# it larger.
#
# If this arc is clockwise (sweep == True), *add* the
# `offset_distance` from its radius, so insetting makes the
# arc larger and outsetting makes it smaller.
#
# If the radius of the offset arc is negative, use its
# absolute value and invert the sweep.
if seg.sweep == False:
new_radius = seg.radius.real - offset_distance
else:
new_radius = seg.radius.real + offset_distance
start = seg.point(0) + (offset_distance * seg.normal(0))
end = seg.point(1) + (offset_distance * seg.normal(1))
sweep = seg.sweep
flipped = False
if new_radius < 0.0:
if debug: print(" inverting Arc!", file=sys.stderr)
flipped = True
new_radius = abs(new_radius)
sweep = not sweep
if new_radius > 0.002:
radius = complex(new_radius, new_radius)
offset_arc = svgpathtools.path.Arc(
start = start,
end = end,
radius = radius,
rotation = seg.rotation,
large_arc = seg.large_arc,
sweep = sweep
)
offset_path_list.append(offset_arc)
elif new_radius > epsilon:
# Offset Arc radius is smaller than the minimum that
# LinuxCNC accepts, replace with a Line.
if debug: print(" arc too small, replacing with a line", file=sys.stderr)
if flipped:
old_start = start
start = end
end = old_start
offset_arc = svgpathtools.path.Line(start = start, end = end)
offset_path_list.append(offset_arc)
else:
# Zero-radius Arc, it disappeared.
if debug: print(" arc way too small, removing", file=sys.stderr)
continue
if debug: print(" ", offset_path_list[-1], file=sys.stderr)
else:
# Deal with any segment that's not a line or a circular arc.
# This includes elliptic arcs and bezier curves. Use linear
# approximation.
#
# FIXME: Steps should probably be computed dynamically to make
# the length of the *offset* line segments manageable.
points = []
for k in range(steps+1):
t = k / float(steps)
normal = seg.normal(t)
offset_vector = offset_distance * normal
points.append(seg.point(t) + offset_vector)
for k in range(len(points)-1):
start = points[k]
end = points[k+1]
offset_path_list.append(svgpathtools.Line(start, end))
if debug: print(" (long list of short lines)", file=sys.stderr)
#
# Find all the places where one segment intersects the next, and
# trim to the intersection.
#
if debug: print("trimming intersecting segments...", file=sys.stderr)
for i in range(len(offset_path_list)):
this_seg = offset_path_list[i]
if (i+1) < len(offset_path_list):
next_seg = offset_path_list[i+1]
else:
next_seg = offset_path_list[0]
# FIXME: I'm not sure about this part.
if debug: print("intersecting", file=sys.stderr)
if debug: print(" this", this_seg, file=sys.stderr)
if debug: print(" next", next_seg, file=sys.stderr)
intersections = this_seg.intersect(next_seg)
if debug: print(" intersections:", intersections, file=sys.stderr)
if len(intersections) > 0:
intersection = intersections[0]
point = this_seg.point(intersection[0])
if debug: print(" intersection point:", point, file=sys.stderr)
if not complex_close_enough(point, this_seg.end):
this_seg.end = this_seg.point(intersection[0])
next_seg.start = this_seg.end
#
# Find all the places where adjacent segments do not end/start close
# to each other, and join them with Arcs.
#
if debug: print("joining non-connecting segments with arcs...", file=sys.stderr)
joined_offset_path_list = []
for i in range(len(offset_path_list)):
this_seg = offset_path_list[i]
if (i+1) < len(offset_path_list):
next_seg = offset_path_list[i+1]
else:
next_seg = offset_path_list[0]
if complex_close_enough(this_seg.end, next_seg.start):
joined_offset_path_list.append(this_seg)
continue
if debug: print("these segments don't touch end to end:", file=sys.stderr)
if debug: print(this_seg, file=sys.stderr)
if debug: print(next_seg, file=sys.stderr)
if debug: print(" error:", this_seg.end-next_seg.start, file=sys.stderr)
# FIXME: Choose values for `large_arc` and `sweep` correctly here.
# I think the goal is to make the joining arc tangent to the segments it joins.
# large_arc should always be False
# sweep means "clockwise" (but +Y is down)
if debug: print("determining joining arc:", file=sys.stderr)
if debug: print(" this_seg ending normal:", this_seg.normal(1), file=sys.stderr)
if debug: print(" next_seg starting normal:", next_seg.normal(0), file=sys.stderr)
sweep_arc = svgpathtools.path.Arc(
start = this_seg.end,
end = next_seg.start,
radius = complex(offset_distance, offset_distance),
rotation = 0,
large_arc = False,
sweep = True
)
sweep_start_error = this_seg.normal(1) - sweep_arc.normal(0)
sweep_end_error = next_seg.normal(0) - sweep_arc.normal(1)
sweep_error = pow(abs(sweep_start_error), 2) + pow(abs(sweep_end_error), 2)
if debug: print(" sweep arc starting normal:", sweep_arc.normal(0), file=sys.stderr)
if debug: print(" sweep arc ending normal:", sweep_arc.normal(1), file=sys.stderr)
if debug: print(" sweep starting error:", sweep_start_error, file=sys.stderr)
if debug: print(" sweep end error:", sweep_end_error, file=sys.stderr)
if debug: print(" sweep error:", sweep_error, file=sys.stderr)
antisweep_arc = svgpathtools.path.Arc(
start = this_seg.end,
end = next_seg.start,
radius = complex(offset_distance, offset_distance),
rotation = 0,
large_arc = False,
sweep = False
)
antisweep_start_error = this_seg.normal(1) - antisweep_arc.normal(0)
antisweep_end_error = next_seg.normal(0) - antisweep_arc.normal(1)
antisweep_error = pow(abs(antisweep_start_error), 2) + pow(abs(antisweep_end_error), 2)
if debug: print(" antisweep arc starting normal:", antisweep_arc.normal(0), file=sys.stderr)
if debug: print(" antisweep arc ending normal:", antisweep_arc.normal(1), file=sys.stderr)
if debug: print(" antisweep starting error:", antisweep_start_error, file=sys.stderr)
if debug: print(" antisweep end error:", antisweep_end_error, file=sys.stderr)
if debug: print(" antisweep error:", antisweep_error, file=sys.stderr)
joining_arc = None
if sweep_error < antisweep_error:
if debug: print("joining arc is sweep", file=sys.stderr)
joining_arc = sweep_arc
else:
if debug: print("joining arc is antisweep", file=sys.stderr)
joining_arc = antisweep_arc
if debug: print("joining arc:", file=sys.stderr)
if debug: print(joining_arc, file=sys.stderr)
if debug: print(" length:", joining_arc.length(), file=sys.stderr)
if debug: print(" start-end distance:", joining_arc.start-joining_arc.end, file=sys.stderr)
# FIXME: this is kind of arbitrary
joining_seg = joining_arc
if joining_arc.length() < 1e-4:
joining_seg = svgpathtools.path.Line(joining_arc.start, joining_arc.end)
if debug: print(" too short! replacing with a line:", joining_seg, file=sys.stderr)
joined_offset_path_list.append(this_seg)
joined_offset_path_list.append(joining_seg)
offset_path_list = joined_offset_path_list
#
# Find the places where the path intersects itself, split into
# multiple separate paths in those places.
#
if debug: print("splitting path at intersections...", file=sys.stderr)
offset_paths_list = split_path_at_intersections(offset_path_list)
#
# Smooth the path: adjacent segments whose start/end points are
# "close enough" to each other are adjusted so they actually touch.
#
# FIXME: is this still needed?
#
if debug: print("smoothing paths...", file=sys.stderr)
for path_list in offset_paths_list:
for i in range(len(path_list)):
this_seg = path_list[i]
if (i+1) < len(path_list):
next_seg = path_list[i+1]
else:
next_seg = path_list[0]
if complex_close_enough(this_seg.end, next_seg.start):
next_seg.start = this_seg.end
else:
if debug: print("gap in the path (seg %d and following):" % i, file=sys.stderr)
if debug: print(" this_seg.end:", this_seg.end, file=sys.stderr)
if debug: print(" next_seg.start:", next_seg.start, file=sys.stderr)
#
# Convert each path list to a Path object and sanity check.
#
if debug: print("converting path lists to paths...", file=sys.stderr)
offset_paths = []
for path_list in offset_paths_list:
offset_path = svgpathtools.Path(*path_list)
if debug: print("offset path:", file=sys.stderr)
if debug: print(offset_path, file=sys.stderr)
assert(offset_path.isclosed())
offset_paths.append(offset_path)
#
# The set of paths we got from split_path_at_intersections() has
# zero or more 'true paths' that we actually want to return, plus
# zero or more 'false paths' that should be discarded.
#
# When offsetting a path to the inside, the false paths will be
# outside the true path and will wind in the opposite direction of
# the input path.
#
# When offsetting a path to the outside, the false paths will be
# inside the true paths, and will wind in the same direction as the
# input path.
#
# [citation needed]
#
if debug: print("pruning false paths...", file=sys.stderr)
path_area = approximate_path_area(path)
if debug: print("input path area:", path_area, file=sys.stderr)
keepers = []
if offset_distance > 0:
# The offset is positive (inwards), discard paths with opposite
# direction from input path.
for offset_path in offset_paths:
if debug: print("checking path:", offset_path, file=sys.stderr)
offset_path_area = approximate_path_area(offset_path)
if debug: print("offset path area:", offset_path_area, file=sys.stderr)
if path_area * offset_path_area < 0.0:
# Input path and offset path go in the opposite directions,
# drop offset path.
if debug: print("wrong direction, dropping", file=sys.stderr)
continue
keepers.append(offset_path)
else:
# The offset is negative (outwards), discard paths that lie
# inside any other path and have the same winding direction as
# the input path.
for offset_path in offset_paths:
if debug: print("checking path:", offset_path, file=sys.stderr)
if is_enclosed(offset_path, offset_paths):
if debug: print(" enclosed", file=sys.stderr)
# This path is enclosed, check the winding direction.
offset_path_area = approximate_path_area(offset_path)
if debug: print("offset path area:", offset_path_area, file=sys.stderr)
if path_area * offset_path_area > 0.0:
if debug: print(" winding is the same as input, dropping", file=sys.stderr)
continue
else:
if debug: print(" winding is opposite input", file=sys.stderr)
else:
if debug: print(" not enclosed", file=sys.stderr)
if debug: print(" keeping", file=sys.stderr)
keepers.append(offset_path)
offset_paths = keepers
return offset_paths
def extract_lines(filepath, page_dir):
doc = svgpathtools.Document(filepath)
content_group = doc.get_group([None, "content"])
# bounds are in the format (xmin, xmax, ymin, ymax)
page_bounds = doc.paths_from_group(content_group)[0].bbox()
line_height = (page_bounds[3] - page_bounds[2]) / 15
lines = {}
debug_lines = {}
debug_nodes = {}
for line_number in range(1, 16):
lines[line_number] = svgpathtools.Path()
debug_lines[line_number] = svgpathtools.Path()
debug_nodes[line_number] = []
full_path = svgpathtools.Path()
for doc_path in doc.paths():
for sub_path in doc_path:
full_path.append(sub_path)
indeterminate_paths = []
for _path in full_path.d().split("M"):
if len(_path.strip()) > 0:
glyph_path = svgpathtools.parse_path(f"M{_path}")
line_number = detect_line_number(glyph_path.bbox(), page_bounds[2],
line_height)
if line_number:
for path_command in glyph_path:
lines[line_number].append(path_command)
else:
indeterminate_paths.append(glyph_path)
indeterminate_paths = [
indeterminate_path_info(p, page_bounds[2], line_height)
for p in indeterminate_paths
]
indeterminate_num = len(indeterminate_paths)
print(f"Found {indeterminate_num} indeterminate paths")
indeterminate_paths.sort(key=lambda x: x[2])
for i, indeterminate_path in enumerate(indeterminate_paths):
start_time = time.time()
determination = detect_indeterminate_line(indeterminate_path, lines)
if determination[0]:
if determination[1]:
debug_nodes[determination[0]].append(determination[1])
for path_command in indeterminate_path[0]:
lines[determination[0]].append(path_command)
debug_lines[determination[0]].append(path_command)
print(
f"Completed {i+1}/{indeterminate_num} path determations in {time.time() - start_time:.2} seconds"
)
attribs = {"fill": "#000000", "fill-rule": "evenodd"}
debug_attribs = {
"stroke": "#FF0000",
"stroke-width": "0.5",
"fill-opacity": "0"
}
svg_attribs = {
"xml:space": "preserve",
"viewBox": "0 0 345 50",
"width": "",
"height": ""
}
for svg_line in lines.items():
if len(svg_line[1]) == 0:
continue
line_number = svg_line[0]
y_pos = floor(svg_line[1].bbox()[2])
svg_attribs["viewBox"] = f"0 {y_pos} 345 50"
filename = path.join(page_dir, f"{line_number}.svg")
_paths = [svg_line[1]]
_attribs = [attribs]
_nodes = []
if debug_mode:
_nodes = debug_nodes[line_number]
if len(debug_lines[line_number]) > 0:
_paths.append(debug_lines[line_number])
_attribs.append(debug_attribs)
svgpathtools.wsvg(_paths,
filename=filename,
attributes=_attribs,
svg_attributes=svg_attribs,
nodes=_nodes)
if debug_mode:
filename = path.join(page_dir, "debug.svg")
debug_paths = [full_path]
svg_attribs["viewBox"] = "0 0 345 550"
_attribs = [attribs]
for line in range(1, 16):
debug_paths.append(
debug_overlay_path(page_bounds[2], line_height, line))
_attribs.append(debug_attribs)
svgpathtools.wsvg(
debug_paths,
filename=filename,
attributes=_attribs,
svg_attributes=svg_attribs,
)
def circle (r) :
arcs = []
arcs.append(svg.Arc(-r + 0j, r + r * 1j, 0, False, False, r + 0j))
arcs.append(svg.Arc(-r + 0j, r + r * 1j, 0, False, True, r + 0j))
return svg.Path(*arcs)
