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# encoding: UTF-8
# KLayout Layout Viewer
# Copyright (C) 2006-2025 Matthias Koefferlein
#
# 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 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import pya
import unittest
import sys
import os
class EdgeNeighborhoodWithNetsVisitor(pya.EdgeNeighborhoodVisitor):
def __init__(self):
self.data = {}
self.poly = None
def begin_polygon(self, layout, cell, polygon):
self.poly = {}
self.data[str(polygon)] = self.poly
def end_polygon(self):
self.poly = None
def on_edge(self, layout, cell, edge, neighborhood):
edge_data = []
self.poly[str(edge)] = edge_data
for (x1, x2), polygons in neighborhood:
for inp, poly in polygons.items():
poly_str = "/".join(sorted([ str(p) for p in poly ]))
edge_data.append(str(x1) + "," + str(x2) + " -> " + str(inp) + ": " + poly_str)
def dump(self):
res = ""
for poly_key in sorted(self.data.keys()):
res += "Polygon: " + poly_key + "\n"
poly_data = self.data[poly_key]
for edge_key in sorted(poly_data.keys()):
res += " Edge: " + edge_key + "\n"
edge_data = poly_data[edge_key]
for e in edge_data:
res += " " + e + "\n"
return res
class DBEdgeNeighborhoodWithNets(unittest.TestCase):
def test_1_Basic(self):
ut_testsrc = os.getenv("TESTSRC")
infile = os.path.join(ut_testsrc, "testdata", "algo", "net_neighborhood.gds")
# Build a LayoutToNetlist object from the layout
# with a simple connectivity 1/0-2/0-3/0
layout = pya.Layout()
layout.read(infile)
cell = layout.top_cell()
l1 = layout.layer(1, 0)
l2 = layout.layer(2, 0)
l3 = layout.layer(3, 0)
l2n = pya.LayoutToNetlist(pya.RecursiveShapeIterator(layout, cell, []))
l1r = pya.Region(cell.begin_shapes_rec(l1))
l2r = pya.Region(cell.begin_shapes_rec(l2))
l3r = pya.Region(cell.begin_shapes_rec(l3))
l2n.register(l1r, "L1")
l2n.register(l2r, "L2")
l2n.register(l3r, "L3")
# intra-layer
l2n.connect(l1r)
l2n.connect(l2r)
l2n.connect(l3r)
# inter-layer
l2n.connect(l1r, l2r)
l2n.connect(l2r, l3r)
l2n.extract_netlist()
nl = l2n.netlist()
tc = nl.top_circuit()
# Dump the net information to a new Layout object
# with properties attached (property key: "net")
annotated_layout = pya.Layout()
annotated_layout.dbu = layout.dbu
annotated_top = annotated_layout.create_cell(cell.name)
cm = l2n.cell_mapping_into(annotated_layout, annotated_top)
lm = { annotated_layout.layer(l2n.layer_info(li)): l2n.layer_by_index(li) for li in l2n.layer_indexes() }
l2n.build_all_nets(cm, annotated_layout, lm, None, "net")
# Run the EdgeNeighborhood function on these net polygons with the
# net property included
l1a = annotated_layout.layer(1, 0)
l2a = annotated_layout.layer(2, 0)
l3a = annotated_layout.layer(3, 0)
l1ra = pya.Region(annotated_top.begin_shapes_rec(l1a))
l1ra.enable_properties()
l2ra = pya.Region(annotated_top.begin_shapes_rec(l2a))
l2ra.enable_properties()
l3ra = pya.Region(annotated_top.begin_shapes_rec(l3a))
l3ra.enable_properties()
visitor = EdgeNeighborhoodWithNetsVisitor()
bext = 0
eext = 0
din = 10
dout = 6000
children = [
pya.CompoundRegionOperationNode.new_primary(), # l1ra, current polygon
pya.CompoundRegionOperationNode.new_foreign(), # l1ra, foreign polygons
pya.CompoundRegionOperationNode.new_secondary(l2ra),
pya.CompoundRegionOperationNode.new_secondary(l3ra)
]
node = pya.CompoundRegionOperationNode.new_edge_neighborhood(children, visitor, bext, eext, din, dout)
l1ra.complex_op(node)
# Check the results
self.maxDiff = None
self.assertEqual("\n" + visitor.dump(), """
Polygon: (-14000,0;-14000,15000;-11000,15000;-11000,0) props={net=>net1}
Edge: (-11000,0;-14000,0) props={net=>net1}
0.0,3000.0 -> 0: (0,-11;0,0;3000,0;3000,-11) props={net=>net1}
Edge: (-11000,15000;-11000,0) props={net=>net1}
0.0,500.0 -> 0: (0,-11;0,0;500,0;500,-11) props={net=>net1}
0.0,500.0 -> 1: (0,1500;0,6001;500,6001;500,1500) props={net=>net1}
0.0,500.0 -> 3: (0,-11;0,4500;500,4500;500,-11) props={net=>net1}
500.0,2500.0 -> 0: (500,-11;500,0;2500,0;2500,-11) props={net=>net1}
500.0,2500.0 -> 1: (500,1500;500,6001;2500,6001;2500,1500) props={net=>net1}
500.0,2500.0 -> 2: (500,2000;500,4000;2500,4000;2500,2000) props={net=>net1}
500.0,2500.0 -> 3: (500,-11;500,4500;2500,4500;2500,-11) props={net=>net1}
2500.0,3000.0 -> 0: (2500,-11;2500,0;3000,0;3000,-11) props={net=>net1}
2500.0,3000.0 -> 1: (2500,1500;2500,6001;3000,6001;3000,1500) props={net=>net1}
2500.0,3000.0 -> 3: (2500,-11;2500,4500;3000,4500;3000,-11) props={net=>net1}
3000.0,8500.0 -> 0: (3000,-11;3000,0;8500,0;8500,-11) props={net=>net1}
3000.0,8500.0 -> 1: (3000,1500;3000,4500;8500,4500;8500,1500) props={net=>net1}/(3000,6000;3000,6001;8500,6001;8500,6000) props={net=>net1}
3000.0,8500.0 -> 3: (3000,-11;3000,0;8500,0;8500,-11) props={net=>net1}
8500.0,15000.0 -> 0: (8500,-11;8500,0;15000,0;15000,-11) props={net=>net1}
8500.0,15000.0 -> 1: (8500,1500;8500,4500;15000,4500;15000,1500) props={net=>net1}/(8500,6000;8500,6001;15000,6001;15000,6000) props={net=>net1}
Edge: (-14000,0;-14000,15000) props={net=>net1}
0.0,6500.0 -> 0: (0,-11;0,0;6500,0;6500,-11) props={net=>net1}
6500.0,15000.0 -> 0: (6500,-11;6500,0;15000,0;15000,-11) props={net=>net1}
6500.0,15000.0 -> 3: (6500,-11;6500,0;15000,0;15000,-11) props={net=>net1}
Edge: (-14000,15000;-11000,15000) props={net=>net1}
0.0,3000.0 -> 0: (0,-11;0,0;3000,0;3000,-11) props={net=>net1}
0.0,3000.0 -> 1: (0,1500;0,5000;3000,5000;3000,1500) props={net=>net3}
0.0,3000.0 -> 3: (0,-11;0,0;3000,0;3000,-11) props={net=>net1}
3000.0,3001.0 -> 1: (3000,1500;3000,5000;3001,5000;3001,1500) props={net=>net3}
3000.0,3001.0 -> 3: (3000,-11;3000,0;3001,0;3001,-11) props={net=>net1}
Polygon: (-14000,16500;-14000,20000;0,20000;0,16500) props={net=>net3}
Edge: (-14000,16500;-14000,20000) props={net=>net3}
0.0,3500.0 -> 0: (0,-11;0,0;3500,0;3500,-11) props={net=>net3}
Edge: (-14000,20000;0,20000) props={net=>net3}
0.0,7000.0 -> 0: (0,-11;0,0;7000,0;7000,-11) props={net=>net3}
7000.0,14000.0 -> 0: (7000,-11;7000,0;14000,0;14000,-11) props={net=>net3}
7000.0,14000.0 -> 3: (7000,-11;7000,0;14000,0;14000,-11) props={net=>net2}
14000.0,14001.0 -> 3: (14000,-11;14000,0;14001,0;14001,-11) props={net=>net2}
Edge: (0,16500;-14000,16500) props={net=>net3}
-1.0,0.0 -> 3: (-1,-11;-1,0;0,0;0,-11) props={net=>net2}
0.0,5000.0 -> 0: (0,-11;0,0;5000,0;5000,-11) props={net=>net3}
0.0,5000.0 -> 1: (0,1500;0,6001;5000,6001;5000,1500) props={net=>net1}
0.0,5000.0 -> 3: (0,-11;0,0;5000,0;5000,-11) props={net=>net2}
5000.0,6500.0 -> 0: (5000,-11;5000,0;6500,0;6500,-11) props={net=>net3}
5000.0,6500.0 -> 1: (5000,1500;5000,4500;6500,4500;6500,1500) props={net=>net1}
5000.0,6500.0 -> 3: (5000,-11;5000,0;6500,0;6500,-11) props={net=>net2}
6500.0,7000.0 -> 0: (6500,-11;6500,0;7000,0;7000,-11) props={net=>net3}
6500.0,7000.0 -> 1: (6500,1500;6500,6001;7000,6001;7000,1500) props={net=>net1}
6500.0,7000.0 -> 3: (6500,-11;6500,0;7000,0;7000,-11) props={net=>net2}/(6500,1500;6500,4500;7000,4500;7000,1500) props={net=>net1}
7000.0,9000.0 -> 0: (7000,-11;7000,0;9000,0;9000,-11) props={net=>net3}
7000.0,9000.0 -> 1: (7000,1500;7000,6001;9000,6001;9000,1500) props={net=>net1}
7000.0,9000.0 -> 2: (7000,2000;7000,4000;9000,4000;9000,2000) props={net=>net1}
7000.0,9000.0 -> 3: (7000,1500;7000,4500;9000,4500;9000,1500) props={net=>net1}
9000.0,9500.0 -> 0: (9000,-11;9000,0;9500,0;9500,-11) props={net=>net3}
9000.0,9500.0 -> 1: (9000,1500;9000,6001;9500,6001;9500,1500) props={net=>net1}
9000.0,9500.0 -> 3: (9000,1500;9000,4500;9500,4500;9500,1500) props={net=>net1}
9500.0,11000.0 -> 0: (9500,-11;9500,0;11000,0;11000,-11) props={net=>net3}
9500.0,11000.0 -> 3: (9500,1500;9500,4500;11000,4500;11000,1500) props={net=>net1}
11000.0,11500.0 -> 0: (11000,-11;11000,0;11500,0;11500,-11) props={net=>net3}
11000.0,11500.0 -> 1: (11000,1500;11000,6001;11500,6001;11500,1500) props={net=>net1}
11000.0,11500.0 -> 3: (11000,1500;11000,6001;11500,6001;11500,1500) props={net=>net1}
11500.0,13500.0 -> 0: (11500,-11;11500,0;13500,0;13500,-11) props={net=>net3}
11500.0,13500.0 -> 1: (11500,1500;11500,6001;13500,6001;13500,1500) props={net=>net1}
11500.0,13500.0 -> 2: (11500,2000;11500,4000;13500,4000;13500,2000) props={net=>net1}
11500.0,13500.0 -> 3: (11500,1500;11500,6001;13500,6001;13500,1500) props={net=>net1}
13500.0,14000.0 -> 0: (13500,-11;13500,0;14000,0;14000,-11) props={net=>net3}
13500.0,14000.0 -> 1: (13500,1500;13500,6001;14000,6001;14000,1500) props={net=>net1}
13500.0,14000.0 -> 3: (13500,1500;13500,6001;14000,6001;14000,1500) props={net=>net1}
Edge: (0,20000;0,16500) props={net=>net3}
0.0,3500.0 -> 0: (0,-11;0,0;3500,0;3500,-11) props={net=>net3}
0.0,3500.0 -> 3: (0,-11;0,4500;3500,4500;3500,-11) props={net=>net2}
3500.0,3501.0 -> 3: (3500,1500;3500,4500;3501,4500;3501,1500) props={net=>net2}
Polygon: (-9500,-5500;-9500,-1500;5000,-1500;5000,-5500) props={net=>net2}
Edge: (-9500,-1500;5000,-1500) props={net=>net2}
0.0,3000.0 -> 0: (0,-11;0,0;3000,0;3000,-11) props={net=>net2}
0.0,3000.0 -> 1: (0,1500;0,6001;3000,6001;3000,1500) props={net=>net1}
3000.0,4500.0 -> 0: (3000,-11;3000,0;4500,0;4500,-11) props={net=>net2}
4500.0,9500.0 -> 0: (4500,-11;4500,0;9500,0;9500,-11) props={net=>net2}
4500.0,9500.0 -> 1: (4500,1500;4500,6001;9500,6001;9500,1500) props={net=>net1}
9500.0,11000.0 -> 0: (9500,-11;9500,0;11000,0;11000,-11) props={net=>net2}
11000.0,14000.0 -> 0: (11000,-11;11000,0;14000,0;14000,-11) props={net=>net2}
11000.0,14000.0 -> 3: (11000,-11;11000,6001;14000,6001;14000,-11) props={net=>net2}
14000.0,14500.0 -> 0: (14000,-11;14000,0;14500,0;14500,-11) props={net=>net2}
Edge: (-9500,-5500;-9500,-1500) props={net=>net2}
0.0,4000.0 -> 0: (0,-11;0,0;4000,0;4000,-11) props={net=>net2}
Edge: (5000,-1500;5000,-5500) props={net=>net2}
0.0,4000.0 -> 0: (0,-11;0,0;4000,0;4000,-11) props={net=>net2}
Edge: (5000,-5500;-9500,-5500) props={net=>net2}
0.0,14500.0 -> 0: (0,-11;0,0;14500,0;14500,-11) props={net=>net2}
Polygon: (-9500,0;-9500,15000;0,15000;0,0;-5000,0;-5000,12000;-6500,12000;-6500,0) props={net=>net1}
Edge: (-5000,0;-5000,12000) props={net=>net1}
0.0,6500.0 -> 0: (0,-11;0,0;6500,0;6500,-11) props={net=>net1}/(0,1500;0,4500;6500,4500;6500,1500) props={net=>net1}
0.0,6500.0 -> 1: (0,6000;0,6001;6500,6001;6500,6000) props={net=>net1}
6500.0,12000.0 -> 0: (6500,-11;6500,0;12000,0;12000,-11) props={net=>net1}/(6500,1500;6500,4500;12000,4500;12000,1500) props={net=>net1}
6500.0,12000.0 -> 1: (6500,6000;6500,6001;12000,6001;12000,6000) props={net=>net1}
6500.0,12000.0 -> 3: (6500,6000;6500,6001;12000,6001;12000,6000) props={net=>net1}
12000.0,12001.0 -> 0: (12000,-11;12000,4500;12001,4500;12001,-11) props={net=>net1}
12000.0,12001.0 -> 1: (12000,6000;12000,6001;12001,6001;12001,6000) props={net=>net1}
12000.0,12001.0 -> 3: (12000,1500;12000,6001;12001,6001;12001,1500) props={net=>net1}
Edge: (-5000,12000;-6500,12000) props={net=>net1}
-1.0,0.0 -> 0: (-1,-11;-1,6001;0,6001;0,-11) props={net=>net1}
0.0,1500.0 -> 0: (0,-11;0,0;1500,0;1500,-11) props={net=>net1}
1500.0,1501.0 -> 0: (1500,-11;1500,6001;1501,6001;1501,-11) props={net=>net1}
1500.0,1501.0 -> 3: (1500,-11;1500,0;1501,0;1501,-11) props={net=>net1}
Edge: (-6500,0;-9500,0) props={net=>net1}
-1.0,0.0 -> 1: (-1,1500;-1,5500;0,5500;0,1500) props={net=>net2}
0.0,3000.0 -> 0: (0,-11;0,0;3000,0;3000,-11) props={net=>net1}
0.0,3000.0 -> 1: (0,1500;0,5500;3000,5500;3000,1500) props={net=>net2}
Edge: (-6500,12000;-6500,0) props={net=>net1}
-1.0,0.0 -> 0: (-1,-11;-1,6001;0,6001;0,-11) props={net=>net1}
-1.0,0.0 -> 3: (-1,-11;-1,0;0,0;0,-11) props={net=>net1}
0.0,12000.0 -> 0: (0,-11;0,0;12000,0;12000,-11) props={net=>net1}/(0,1500;0,6001;12000,6001;12000,1500) props={net=>net1}
Edge: (-9500,0;-9500,15000) props={net=>net1}
0.0,6500.0 -> 0: (0,-11;0,0;6500,0;6500,-11) props={net=>net1}
0.0,6500.0 -> 1: (0,1500;0,4500;6500,4500;6500,1500) props={net=>net1}
6500.0,12000.0 -> 0: (6500,-11;6500,0;12000,0;12000,-11) props={net=>net1}
6500.0,12000.0 -> 1: (6500,1500;6500,4500;12000,4500;12000,1500) props={net=>net1}
6500.0,12000.0 -> 3: (6500,1500;6500,4500;12000,4500;12000,1500) props={net=>net1}
12000.0,12500.0 -> 0: (12000,-11;12000,0;12500,0;12500,-11) props={net=>net1}
12000.0,12500.0 -> 1: (12000,1500;12000,4500;12500,4500;12500,1500) props={net=>net1}
12000.0,12500.0 -> 3: (12000,-11;12000,4500;12500,4500;12500,-11) props={net=>net1}
12500.0,14500.0 -> 0: (12500,-11;12500,0;14500,0;14500,-11) props={net=>net1}
12500.0,14500.0 -> 1: (12500,1500;12500,4500;14500,4500;14500,1500) props={net=>net1}
12500.0,14500.0 -> 2: (12500,2000;12500,4000;14500,4000;14500,2000) props={net=>net1}
12500.0,14500.0 -> 3: (12500,-11;12500,4500;14500,4500;14500,-11) props={net=>net1}
14500.0,15000.0 -> 0: (14500,-11;14500,0;15000,0;15000,-11) props={net=>net1}
14500.0,15000.0 -> 1: (14500,1500;14500,4500;15000,4500;15000,1500) props={net=>net1}
14500.0,15000.0 -> 3: (14500,-11;14500,4500;15000,4500;15000,-11) props={net=>net1}
Edge: (-9500,15000;0,15000) props={net=>net1}
-1.0,0.0 -> 1: (-1,1500;-1,5000;0,5000;0,1500) props={net=>net3}
-1.0,0.0 -> 3: (-1,-11;-1,0;0,0;0,-11) props={net=>net1}
0.0,2500.0 -> 0: (0,-11;0,0;2500,0;2500,-11) props={net=>net1}
0.0,2500.0 -> 1: (0,1500;0,5000;2500,5000;2500,1500) props={net=>net3}
0.0,2500.0 -> 3: (0,-11;0,0;2500,0;2500,-11) props={net=>net1}
2500.0,3000.0 -> 0: (2500,-11;2500,0;3000,0;3000,-11) props={net=>net1}
2500.0,3000.0 -> 1: (2500,1500;2500,5000;3000,5000;3000,1500) props={net=>net3}
2500.0,3000.0 -> 3: (2500,-11;2500,0;3000,0;3000,-11) props={net=>net1}/(2500,1500;2500,5000;3000,5000;3000,1500) props={net=>net2}
3000.0,9500.0 -> 0: (3000,-11;3000,0;9500,0;9500,-11) props={net=>net1}
3000.0,9500.0 -> 1: (3000,1500;3000,5000;9500,5000;9500,1500) props={net=>net3}
3000.0,9500.0 -> 3: (3000,1500;3000,5000;9500,5000;9500,1500) props={net=>net2}
9500.0,9501.0 -> 3: (9500,1500;9500,5000;9501,5000;9501,1500) props={net=>net2}
Edge: (0,0;-5000,0) props={net=>net1}
-1.0,0.0 -> 1: (-1,1500;-1,5500;0,5500;0,1500) props={net=>net2}
-1.0,0.0 -> 3: (-1,2000;-1,5000;0,5000;0,2000) props={net=>net2}
0.0,3000.0 -> 0: (0,-11;0,0;3000,0;3000,-11) props={net=>net1}
0.0,3000.0 -> 1: (0,1500;0,5500;3000,5500;3000,1500) props={net=>net2}
0.0,3000.0 -> 3: (0,2000;0,5000;3000,5000;3000,2000) props={net=>net2}
3000.0,5000.0 -> 0: (3000,-11;3000,0;5000,0;5000,-11) props={net=>net1}
3000.0,5000.0 -> 1: (3000,1500;3000,5500;5000,5500;5000,1500) props={net=>net2}
5000.0,5001.0 -> 1: (5000,1500;5000,5500;5001,5500;5001,1500) props={net=>net2}
Edge: (0,15000;0,0) props={net=>net1}
-1.0,0.0 -> 3: (-1,1500;-1,4500;0,4500;0,1500) props={net=>net2}
0.0,15000.0 -> 0: (0,-11;0,0;15000,0;15000,-11) props={net=>net1}
0.0,15000.0 -> 3: (0,1500;0,4500;15000,4500;15000,1500) props={net=>net2}
15000.0,15001.0 -> 3: (15000,1500;15000,4500;15001,4500;15001,1500) props={net=>net2}
""")
# run unit tests
if __name__ == '__main__':
suite = unittest.TestLoader().loadTestsFromTestCase(DBEdgeNeighborhoodWithNets)
if not unittest.TextTestRunner(verbosity = 1).run(suite).wasSuccessful():
sys.exit(1)
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