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# 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 DBRegionTest(unittest.TestCase):
def test_1_Region(self):
r = pya.Region()
self.assertEqual(str(r), "")
r.insert(pya.Box(0, 100, 200, 300))
self.assertEqual(str(r), "(0,100;0,300;200,300;200,100)")
r2 = pya.Region(pya.Box(50, 150, 250, 350))
self.assertEqual(str(r2), "(50,150;50,350;250,350;250,150)")
r += r2
self.assertEqual(str(r), "(0,100;0,300;200,300;200,100);(50,150;50,350;250,350;250,150)")
r.merge()
self.assertEqual(str(r), "(0,100;0,300;50,300;50,350;250,350;250,150;200,150;200,100)")
def test_deep1(self):
ut_testsrc = os.getenv("TESTSRC")
# construction/destruction magic ...
self.assertEqual(pya.DeepShapeStore.instance_count(), 0)
dss = pya.DeepShapeStore()
dss._create()
self.assertEqual(pya.DeepShapeStore.instance_count(), 1)
dss = None
self.assertEqual(pya.DeepShapeStore.instance_count(), 0)
dss = pya.DeepShapeStore()
ly = pya.Layout()
ly.read(os.path.join(ut_testsrc, "testdata", "algo", "deep_region_l1.gds"))
l1 = ly.layer(1, 0)
r = pya.Region(ly.top_cell().begin_shapes_rec(l1), dss)
rf = pya.Region(ly.top_cell().begin_shapes_rec(l1))
self.assertEqual(r.area(), 53120000)
self.assertEqual(rf.area(), 53120000)
ly_new = pya.Layout()
tc = ly_new.add_cell("TOP")
l1 = ly_new.layer(1, 0)
l2 = ly_new.layer(2, 0)
ly_new.insert(tc, l1, r)
ly_new.insert(tc, l2, rf)
s1 = { }
s2 = { }
for cell in ly_new.each_cell():
s1[cell.name] = cell.shapes(l1).size()
s2[cell.name] = cell.shapes(l2).size()
self.assertEqual(s1, {"INV2": 1, "TOP": 0, "TRANS": 0})
self.assertEqual(s2, {"INV2": 0, "TOP": 10, "TRANS": 0})
# force destroy, so the unit tests pass on the next iteration
dss = None
self.assertEqual(pya.DeepShapeStore.instance_count(), 0)
# begin_shapes_rec and begin_shapes_merged_rec
def test_extended_iter(self):
r = pya.Region()
# NOTE: this also tests the copy semantics of the RecursiveShape to Variant binding in RBA:
it, trans = r.begin_shapes_rec()
s = ",".join([ str(trans*i.trans()*i.shape().polygon) for i in it.each() ])
self.assertEqual(s, "")
it, trans = r.begin_merged_shapes_rec()
s = ",".join([ str(trans*i.trans()*i.shape().polygon) for i in it.each() ])
self.assertEqual(s, "")
r.insert(pya.Box(0, 0, 100, 100))
r.insert(pya.Box(50, 50, 200, 200))
it, trans = r.begin_shapes_rec()
s = ",".join([ str(trans*i.trans()*i.shape().polygon) for i in it.each() ])
self.assertEqual(s, "(0,0;0,100;100,100;100,0),(50,50;50,200;200,200;200,50)")
it, trans = r.begin_merged_shapes_rec()
s = ",".join([ str(trans*i.trans()*i.shape().polygon) for i in it.each() ])
self.assertEqual(s, "(0,0;0,100;50,100;50,200;200,200;200,50;100,50;100,0)")
# run unit tests
if __name__ == '__main__':
suite = unittest.TestLoader().loadTestsFromTestCase(DBRegionTest)
if not unittest.TextTestRunner(verbosity = 1).run(suite).wasSuccessful():
sys.exit(1)
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