def _structure_Path(data, cls):
points = []
extraData = None
if data[-1].__class__ is dict:
extraData = data[-1]
data = data[:-1]
for arr in data:
if arr[-1].__class__ is dict:
_extraData = arr[-1]
point = Point(*arr[:-1])
point._extraData = _extraData
else:
point = Point(*arr)
points.append(point)
path = cls(points)
if extraData is not None:
path._extraData = extraData
return path
def _structure_Path(data, cls):
points = []
for element in data:
if element.__class__ is dict:
point._extraData = element
else:
point = Point(*element)
points.append(point)
return cls(points)
def intoCurve(self):
points = self._points
index = self._end
onCurve = points[index]
if onCurve.type == "line":
start = points[self._start - 1]
points.insert(
index,
Point(
start.x + .65 * (onCurve.x - start.x),
start.y + .65 * (onCurve.y - start.y),
))
points.insert(
index,
Point(
start.x + .35 * (onCurve.x - start.x),
start.y + .35 * (onCurve.y - start.y),
))
onCurve.type = "curve"
def addOffCurves(self):
points = self._points
index = self._end
onCurve = points[index]
if onCurve.type == "line":
start = points[self._start - 1]
points.insert(
index,
Point(
start.x + .65 * (onCurve.x - start.x),
start.y + .65 * (onCurve.y - start.y),
))
points.insert(
index,
Point(
start.x + .35 * (onCurve.x - start.x),
start.y + .35 * (onCurve.y - start.y),
))
onCurve.type = "curve"
else:
raise NotImplementedError("cannot add offCurves to %r segment" %
onCurve.type)
def splitSegment(self, index, t):
segments = self._segments
segment = segments[index]
pts = segment.points
pts_len = len(pts)
if pts_len == 2:
p1, p2 = pts
p = Point(p1.x + (p2.x - p1.x) * t, p1.y + (p2.y - p1.y) * t,
"line")
self._points.insert(segment._start, p)
newSegment = copy(segment)
segments.insert(index, newSegment)
for seg in segments[index + 1:]:
seg._start += 1
seg._end += 1
elif pts_len == 4:
# inline
p1, p2, p3, p4 = [(p.x, p.y) for p in pts]
(p1, p2, p3,
p4), (p5, p6, p7,
p8) = bezierTools.splitCubicAtT(p1, p2, p3, p4, t)
points = self._points
start = segment._start
p = points[start]
p.x, p.y = p6
p = points[start + 1]
p.x, p.y = p7
p = points[start + 2]
p.x, p.y = p8
points[start:start] = [
Point(*p2),
Point(*p3),
Point(*p4, "curve", smooth=True)
]
newSegment = copy(segment)
segments.insert(index, newSegment)
for seg in segments[index + 1:]:
seg._start += 3
seg._end += 3
else:
raise ValueError("unattended len %d" % pts_len)
return newSegment