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######################################################################
# #
# Copyright 2009-2019 Lucas Heitzmann Gabrielli. #
# This file is part of gdspy, distributed under the terms of the #
# Boost Software License - Version 1.0. See the accompanying #
# LICENSE file or <http://www.boost.org/LICENSE_1_0.txt> #
# #
######################################################################
import pytest
import datetime
import numpy
import gdspy
def equals(x, y):
return gdspy.boolean(x, y, "xor") is None
@pytest.fixture()
def library():
lib = gdspy.GdsLibrary()
c1 = gdspy.Cell("cell1", True)
c1.add(gdspy.Rectangle((0, -1), (1, 2), 2, 4))
c1.add(gdspy.Label("label", (1, -1), "w", 45, 1.5, True, 5, 6))
c2 = gdspy.Cell("cell2", True)
c2.add(gdspy.Round((0, 0), 1, number_of_points=32, max_points=20))
c3 = gdspy.Cell("cell3", True)
c3.add(gdspy.CellReference(c1, (0, 1), -90, 2, True))
c4 = gdspy.Cell("cell04", True)
c4.add(gdspy.CellArray(c2, 2, 3, (1, 4), (-1, -2), 180, 0.5, True))
lib.add([c1, c2, c3, c4])
return lib
def test_8b_f():
f = gdspy._eight_byte_real_to_float
assert f(b"\x00\x00\x00\x00\x00\x00\x00\x00") == 0
assert f(b"\x41\x10\x00\x00\x00\x00\x00\x00") == 1
assert f(b"\x41\x20\x00\x00\x00\x00\x00\x00") == 2
assert f(b"\xC1\x30\x00\x00\x00\x00\x00\x00") == -3
def test_f_8b():
g = gdspy._eight_byte_real
assert b"\x00\x00\x00\x00\x00\x00\x00\x00" == g(0)
assert b"\x41\x10\x00\x00\x00\x00\x00\x00" == g(1)
assert b"\x41\x20\x00\x00\x00\x00\x00\x00" == g(2)
assert b"\xC1\x30\x00\x00\x00\x00\x00\x00" == g(-3)
def test_twoway():
f = gdspy._eight_byte_real_to_float
g = gdspy._eight_byte_real
for x in [0, 1.5, -numpy.pi, 1 / 3.0e12, -1.0e12 / 7, 1.1e75, -0.9e-78]:
assert x == f(g(x))
for _ in range(10000):
x = 10 ** (numpy.random.random() * 150 - 75)
assert x == f(g(x))
def test_gather():
def same_points(x, y):
for px, py in zip(x, y):
for ptx, pty in zip(px, py):
for cx, cy in zip(ptx, pty):
if cx != cy:
return False
return True
gdspy.current_library = gdspy.GdsLibrary()
pts = [(0, 0), (1, 1), (1, 0)]
ps1 = gdspy.Round((10, 10), 1, inner_radius=0.2)
ps2 = gdspy.Path(0.1, (-1, -1), 2, 1).segment(2, "-x")
c = gdspy.Cell("C1").add(gdspy.Rectangle((-4, 3), (-5, 4)))
cr = gdspy.CellReference(c, (10, -10))
ca = gdspy.CellArray(c, 2, 1, (2, 0))
assert gdspy._gather_polys(None) == []
assert same_points(gdspy._gather_polys([pts]), [pts])
assert same_points(gdspy._gather_polys(ps1), ps1.polygons)
assert same_points(gdspy._gather_polys(ps2), ps2.polygons)
assert same_points(gdspy._gather_polys(cr), cr.get_polygons())
assert same_points(gdspy._gather_polys(ca), ca.get_polygons())
result = [pts]
result.extend(ps2.polygons)
result.extend(cr.get_polygons())
assert same_points(gdspy._gather_polys([pts, ps2, cr]), result)
def test_slice():
poly = gdspy.Path(1, (1, 0), 2, 3).segment(2, "-x")
left = gdspy.Path(1, (0, 0), 2, 3).segment(1, "-x")
right = gdspy.Path(1, (1, 0), 2, 3).segment(1, "-x")
result = gdspy.slice(poly, 0, 0)
assert equals(result[0], left)
assert equals(result[1], right)
bot = gdspy.Path(1, (1, -1.5)).segment(2, "-x")
top = gdspy.Path(1, (1, 1.5)).segment(2, "-x")
result = gdspy.slice(poly, [0.1, -0.1], 1)
assert equals(result[0], bot)
assert equals(result[2], top)
assert result[1] is None
def test_offset():
gdspy.current_library = gdspy.GdsLibrary()
r = gdspy.Rectangle((0, 0), (1, 2))
result = gdspy.Rectangle((-1, -1), (2, 3))
assert equals(gdspy.offset(r, 1), result)
c = gdspy.Cell("OFFSET").add(r)
ca = gdspy.CellArray(c, 2, 1, (1, 0))
result = gdspy.Rectangle((0.2, 0.2), (1.8, 1.8))
assert equals(gdspy.offset([ca], -0.2, join_first=True), result)
v = [gdspy.Rectangle((-1, -1), (1, 1)), [(0, 0), (1, 0), (1, 1), (0, 1)]]
x = 1 + 0.1 * numpy.tan(numpy.pi / 8)
result = gdspy.Polygon(
[
(-1.1, -x),
(-1.1, x),
(-x, 1.1),
(x, 1.1),
(1.1, x),
(1.1, -x),
(x, -1.1),
(-x, -1.1),
],
layer=8,
)
assert equals(gdspy.offset(v, 0.1, join="bevel", layer=12), result)
def test_boolean():
op1 = gdspy.Rectangle((0, 0), (3, 3))
op2 = gdspy.Rectangle((1, 1), (2, 2))
result = [
[(0, 0), (3, 0), (3, 3), (0, 3), (0, 0), (1, 1), (1, 2), (2, 2), (2, 1), (1, 1)]
]
assert equals(gdspy.boolean(op1, op2, "not"), result)
op3 = gdspy.Rectangle((0, 0), (2, 2))
assert equals(gdspy.boolean([op2, op3], None, "or"), op3)
def test_inside():
gdspy.current_library = gdspy.GdsLibrary()
polygons = [
gdspy.Round((0, 0), 10, inner_radius=5, number_of_points=180),
gdspy.Rectangle((20, -10), (40, 10)).polygons[0],
gdspy.CellReference(gdspy.Cell("X").add(gdspy.Rectangle((-10, 0), (10, 20)))),
]
assert gdspy.inside([(0, 0)], polygons[0]) == (False,)
assert gdspy.inside([(0, 0)], polygons[2]) == (True,)
assert gdspy.inside([(0, 0)], polygons) == (True,)
assert gdspy.inside([(0, 0), (0, 30), (30, 0), (0, -1)], polygons) == (
True,
False,
True,
False,
)
assert gdspy.inside(
[[(0, 0), (0, 30), (30, 0), (0, -1)], [(0, -1), (0, 30)], [(0, 0), (30, 0)]],
polygons,
"any",
) == (True, False, True)
assert gdspy.inside(
[[(0, 0), (0, 30), (30, 0), (0, -1)], [(0, -1), (0, 30)], [(0, 0), (30, 0)]],
polygons,
"all",
) == (False, False, True)
def test_copy():
gdspy.current_library = gdspy.GdsLibrary()
p = gdspy.Rectangle((0, 0), (1, 1))
q = gdspy.copy(p, 1, -1)
assert set(p.polygons[0][:, 0]) == {0, 1}
assert set(p.polygons[0][:, 1]) == {0, 1}
assert set(q.polygons[0][:, 0]) == {1, 2}
assert set(q.polygons[0][:, 1]) == {-1, 0}
p = gdspy.PolygonSet([[(0, 0), (1, 0), (0, 1)], [(2, 2), (3, 2), (2, 3)]])
q = gdspy.copy(p, 1, -1)
assert set(p.polygons[0][:, 0]) == {0, 1}
assert set(p.polygons[0][:, 1]) == {0, 1}
assert set(q.polygons[0][:, 0]) == {1, 2}
assert set(q.polygons[0][:, 1]) == {-1, 0}
assert set(p.polygons[1][:, 0]) == {2, 3}
assert set(p.polygons[1][:, 1]) == {2, 3}
assert set(q.polygons[1][:, 0]) == {3, 4}
assert set(q.polygons[1][:, 1]) == {1, 2}
l = gdspy.Label("text", (0, 1))
m = gdspy.copy(l, -1, 1)
assert l.position[0] == 0 and l.position[1] == 1
assert m.position[0] == -1 and m.position[1] == 2
c = gdspy.CellReference("empty", (0, 1), ignore_missing=True)
d = gdspy.copy(c, -1, 1)
assert c.origin == (0, 1)
assert d.origin == (-1, 2)
c = gdspy.CellArray("empty", 2, 3, (1, 0), (0, 1), ignore_missing=True)
d = gdspy.copy(c, -1, 1)
assert c.origin == (0, 1)
assert d.origin == (-1, 2)
def test_write_gds(library, tmpdir):
gdspy.current_library = library
fname1 = str(tmpdir.join("test1.gds"))
gdspy.write_gds(fname1, name="lib", unit=2e-6, precision=1e-8)
lib1 = gdspy.GdsLibrary(
infile=fname1,
units="convert",
rename={"cell1": "1"},
layers={2: 4},
datatypes={4: 2},
texttypes={6: 7},
)
assert lib1.name == "lib"
assert len(lib1.cell_dict) == 4
assert set(lib1.cell_dict.keys()) == {"1", "cell2", "cell3", "cell04"}
c = lib1.cell_dict["1"]
assert len(c.polygons) == len(c.labels) == 1
assert c.polygons[0].area() == 12.0
assert c.polygons[0].layers == [4]
assert c.polygons[0].datatypes == [2]
assert c.labels[0].text == "label"
assert c.labels[0].position[0] == 2 and c.labels[0].position[1] == -2
assert c.labels[0].anchor == 4
assert c.labels[0].rotation == 45
assert c.labels[0].magnification == 1.5
assert c.labels[0].x_reflection == True
assert c.labels[0].layer == 5
assert c.labels[0].texttype == 7
c = lib1.cell_dict["cell2"]
assert len(c.polygons) == 2
assert isinstance(c.polygons[0], gdspy.Polygon) and isinstance(
c.polygons[1], gdspy.Polygon
)
c = lib1.cell_dict["cell3"]
assert len(c.references) == 1
assert c.references[0].ref_cell == lib1.cell_dict["1"]
assert c.references[0].origin[0] == 0 and c.references[0].origin[1] == 2
assert c.references[0].rotation == -90
assert c.references[0].magnification == 2
assert c.references[0].x_reflection == True
c = lib1.cell_dict["cell04"]
assert len(c.references) == 1
assert c.references[0].ref_cell == lib1.cell_dict["cell2"]
assert c.references[0].origin[0] == -2 and c.references[0].origin[1] == -4
assert c.references[0].rotation == 180
assert c.references[0].magnification == 0.5
assert c.references[0].x_reflection == True
assert c.references[0].spacing[0] == 2 and c.references[0].spacing[1] == 8
assert c.references[0].columns == 2
assert c.references[0].rows == 3
fname2 = str(tmpdir.join("test2.gds"))
with open(fname2, "wb") as fout:
gdspy.write_gds(fout, name="lib2", unit=2e-3, precision=1e-5)
with open(fname2, "rb") as fin:
lib2 = gdspy.GdsLibrary()
lib2.read_gds(fin)
assert lib2.name == "lib2"
assert len(lib2.cell_dict) == 4
def test_gdsii_hash(library, tmpdir):
out1 = str(tmpdir.join("test1.gds"))
out2 = str(tmpdir.join("test2.gds"))
library.write_gds(out1)
library.write_gds(out2, timestamp=datetime.datetime.today() + datetime.timedelta(1))
assert gdspy.gdsii_hash(out1) == gdspy.gdsii_hash(out2)
def test_get_gds_units(tmpdir):
out = str(tmpdir.join("test1.gds"))
lib = gdspy.GdsLibrary(unit=10.0, precision=0.1)
lib.write_gds(out)
assert (10.0, 0.1) == gdspy.get_gds_units(out)
lib.unit = 0.2
lib.precision = 5e-5
out = str(tmpdir.join("test2.gds"))
lib.write_gds(out)
with open(out, "rb") as fin:
assert (0.2, 5e-5) == gdspy.get_gds_units(fin)
def test_get_binary_cells(library, tmpdir):
out = str(tmpdir.join("test.gds"))
now = datetime.datetime.today()
library.write_gds(out, timestamp=now)
bincells = gdspy.get_binary_cells(out)
for name, cell in library.cell_dict.items():
bindata = cell.to_gds(library.unit / library.precision, timestamp=now)
assert bindata == bincells[name]
with open(out, "rb") as fin:
bincells = gdspy.get_binary_cells(fin)
for name, cell in library.cell_dict.items():
bindata = cell.to_gds(library.unit / library.precision, timestamp=now)
assert bindata == bincells[name]
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