def draw(self, cpw, length, length_reduction, coupler):
nodes = {}
# Default start position is at (0, 0)
cpw_trace = CPW(**cpw, direction='+y')
cpw_trace.segment(length).open(cpw_trace.total_width())
idc = qlib.InlineIDC(cpw=cpw, name='IDC',
**coupler).place(cpw_trace.initial_position(),
node='cpw0',
rotation=-90)
# Computing the locations of each node in the local reference frame.
nodes['top'] = cpw_trace.current_position() - (0,
cpw_trace.total_width())
nodes['bottom'] = cpw_trace.initial_position()
nodes['qb_top'] = nodes['top'] - (0, length_reduction)
nodes['qb_bottom'] = nodes['bottom'] + (0, length_reduction)
nodes['center'] = (nodes['top'] + nodes['bottom']) / 2
self.add([cpw_trace, idc])
# This is necessary for the perforation mask to render properly
self.add_cutout(cpw_trace.cutout)
return nodes
def draw(self, cpw, lx, ly1, ly2, radius, meander, coupler):
nodes = {}
cpw_trace = CPW(**cpw, start=(-lx / 2, ly1), direction='-y')
y = ly1
if not isinstance(meander['lengths'], list):
meander['lengths'] = [meander['lengths']] * len(meander['ys'])
for y_m, Lm in zip(meander['ys'], meander['lengths']):
cpw_trace.segment(y - (y_m + 2 * radius)) \
.turn(radius, 'l') \
.meander(2, Lm, radius, turn=-1) \
.turn(radius, 'l')
_, y = cpw_trace.current_position()
cpw_trace.segment(y - radius) \
.turn(radius, 'l') \
.segment(lx - 2 * radius) \
.turn(radius, 'l') \
.segment(ly2 - radius)
left_coupler = coupler.place(cpw_trace.initial_position(), 'cpw')
right_coupler = coupler.place(cpw_trace.current_position(), 'cpw')
self.add([left_coupler, right_coupler, cpw_trace])
self.add_cutout(cpw_trace.cutout)
nodes['left'] = left_coupler.node('pad')
nodes['right'] = right_coupler.node('pad')
return nodes