def __dxftags__(self):
def curve_point(alpha):
alpha = radians(alpha)
point = (cos(alpha) * self.rx,
sin(alpha) * self.ry)
point = rotate_2d(point, radians(self.rotation))
x, y = vadd(self.center, point)
return (x, y, zaxis)
def normalize_angle(angle):
angle = fmod(angle, 360.)
if angle < 0:
angle += 360.
return angle
zaxis = 0. if len(self.center)<3 else self.center[2]
points = []
delta = (self.endangle - self.startangle) / self.segments
for segment in xrange(self.segments):
alpha = self.startangle + delta * segment
points.append(curve_point(alpha))
polyline = Polyline(points, color=self.color, layer=self.layer,
linetype=self.linetype)
if equals_almost(self.startangle, normalize_angle(self.endangle)):
polyline.close()
return polyline.__dxftags__()
def __dxftags__(self):
spline = CubicSpline(self.points)
polyline = Polyline(spline.approximate(self.segments),
layer = self.layer,
color=self.color,
linetype = self.linetype)
return polyline.__dxftags__()
def __dxftags__(self):
polyline = Polyline(layer=self.layer, color=self.color,
linetype=self.linetype)
for segment in self._build_bezier_segments():
points = segment.approximate()
polyline.add_vertices(points)
return polyline.__dxftags__()
def __dxftags__(self):
def curve_point(alpha):
alpha = radians(alpha)
point = (cos(alpha) * self.rx, sin(alpha) * self.ry)
point = rotate_2d(point, radians(self.rotation))
x, y = vadd(self.center, point)
return (x, y, zaxis)
def normalize_angle(angle):
angle = fmod(angle, 360.)
if angle < 0:
angle += 360.
return angle
zaxis = 0. if len(self.center) < 3 else self.center[2]
points = []
delta = (self.endangle - self.startangle) / self.segments
for segment in xrange(self.segments):
alpha = self.startangle + delta * segment
points.append(curve_point(alpha))
polyline = Polyline(points,
color=self.color,
layer=self.layer,
linetype=self.linetype)
if equals_almost(self.startangle, normalize_angle(self.endangle)):
polyline.close()
return polyline.__dxftags__()
def __dxftags__(self):
spline = CubicSpline(self.points)
polyline = Polyline(spline.approximate(self.segments),
layer=self.layer,
color=self.color,
linetype=self.linetype)
return polyline.__dxftags__()
def __dxftags__(self):
polyline = Polyline(layer=self.layer,
color=self.color,
linetype=self.linetype)
for segment in self._build_bezier_segments():
points = segment.approximate()
polyline.add_vertices(points)
return polyline.__dxftags__()
