# This code is part of KQCircuits
# Copyright (C) 2021 IQM Finland Oy
#
# This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public
# License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later
# version.
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# (meetiqm.com/developers/osstmpolicy). IQM welcomes contributions to the code. Please see our contribution agreements
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from kqcircuits.pya_resolver import pya
from kqcircuits.util.parameters import Param, pdt, add_parameters_from
from kqcircuits.elements.fluxlines.fluxline import Fluxline
[docs]@add_parameters_from(Fluxline, fluxline_gap_width=3)
class FluxlineStraight(Fluxline):
"""Fluxline variant "straight vertical".
.. MARKERS_FOR_PNG -4,-6 0,-7
"""
fluxline_width = Param(pdt.TypeDouble, "Fluxline width", 0, unit="μm", hidden=True)
[docs] def build(self):
b = self.fluxline_gap_width
a = (self.a / self.b) * b # fluxline center width
l1 = 2 * b # straight down
bottom_y = -b - l1
# origin at edge of the qubit gap
# Right gap of the fluxline. Points created clockwise starting from top left point.
x_offset = 0 # a + b
right_gap_pts = [
pya.DPoint(-b / 2 + x_offset, -b),
pya.DPoint(b / 2 + x_offset, -b),
pya.DPoint(b / 2 + x_offset, bottom_y),
pya.DPoint(-b / 2 + x_offset, bottom_y),
]
right_gap = pya.DPolygon(right_gap_pts)
# Left gap of the fluxline. Points created clockwise starting from top left point.
left_gap_pts = [
right_gap_pts[0] + pya.DPoint(-a - b, 0),
right_gap_pts[1] + pya.DPoint(-a - b, 0),
right_gap_pts[2] + pya.DPoint(-a - b, 0),
right_gap_pts[3] + pya.DPoint(-a - b, 0),
]
left_gap = pya.DPolygon(left_gap_pts)
self._insert_fluxline_shapes(left_gap, right_gap)
self._add_fluxline_refpoints(pya.DPoint(-a / 2 - b / 2 + x_offset, bottom_y))