def loadReferenceFile(self):
filename, _ = QtWidgets.QFileDialog.getOpenFileName(
filter="Touchstone Files (*.s1p *.s2p);;All files (*.*)")
if filename != "":
self.app.resetReference()
t = Touchstone(filename)
t.load()
self.app.setReference(t.s11, t.s21, filename)
def loadSweepFile(self):
filename, _ = QtWidgets.QFileDialog.getOpenFileName(
filter="Touchstone Files (*.s1p *.s2p);;All files (*.*)")
if filename != "":
self.app.data.s11 = []
self.app.data.s21 = []
t = Touchstone(filename)
t.load()
self.app.saveData(t.s11, t.s21, filename)
self.app.dataUpdated()
def test_load_scikit(self):
ts = Touchstone("./test/data/scikit_unordered.s2p")
with self.assertLogs(level=logging.WARNING) as cm:
ts.load()
self.assertEqual(cm.output, [
'WARNING:NanoVNASaver.Touchstone:Non integer resistance value: 50.0',
'WARNING:NanoVNASaver.Touchstone:Comment after header: !freq ReS11 ImS11 ReS21 ImS21 ReS12 ImS12 ReS22 ImS22',
'WARNING:NanoVNASaver.Touchstone:Frequency not ascending: 15000000.0 0.849810063 -0.4147357 -0.000306106 0.0041482 0.0 0.0 0.0 0.0',
'WARNING:NanoVNASaver.Touchstone:Reordering data',
])
self.assertEqual(str(ts.opts), "# HZ S RI R 50")
self.assertEqual(len(ts.s11data), 101)
self.assertIn("!freq ReS11 ImS11 ReS21 ImS21 ReS12 ImS12 ReS22 ImS22",
ts.comments)
def test_swap(self):
ts = Touchstone("./test/data/valid.s2p")
ts.load()
s11, s21, s12, s22 = ts.sdata
ts.swap()
s11_, s21_, s12_, s22_ = ts.sdata
self.assertEqual([s11_, s21_, s12_, s22_] ,[s22, s12, s21, s11])
def test_load(self):
ts = Touchstone("./test/data/valid.s1p")
ts.load()
self.assertEqual(str(ts.opts), "# HZ S RI R 50")
self.assertEqual(len(ts.s11data), 1010)
self.assertEqual(len(ts.s21data), 0)
self.assertEqual(ts.r, 50)
ts = Touchstone("./test/data/valid.s2p")
ts.load()
self.assertEqual(str(ts.opts), "# HZ S RI R 50")
self.assertEqual(len(ts.s11data), 1020)
self.assertEqual(len(ts.s21data), 1020)
self.assertEqual(len(ts.s12data), 1020)
self.assertEqual(len(ts.s22data), 1020)
self.assertIn("! Vector Network Analyzer VNA R2", ts.comments)
def exportFile(self, nr_params: int = 1):
if len(self.app.data.s11) == 0:
QtWidgets.QMessageBox.warning(self, "No data to save",
"There is no data to save.")
return
if nr_params > 2 and len(self.app.data.s21) == 0:
QtWidgets.QMessageBox.warning(self, "No S21 data to save",
"There is no S21 data to save.")
return
filedialog = QtWidgets.QFileDialog(self)
if nr_params == 1:
filedialog.setDefaultSuffix("s1p")
filedialog.setNameFilter(
"Touchstone 1-Port Files (*.s1p);;All files (*.*)")
else:
filedialog.setDefaultSuffix("s2p")
filedialog.setNameFilter(
"Touchstone 2-Port Files (*.s2p);;All files (*.*)")
filedialog.setAcceptMode(QtWidgets.QFileDialog.AcceptSave)
selected = filedialog.exec()
if not selected:
return
filename = filedialog.selectedFiles()[0]
if filename == "":
logger.debug("No file name selected.")
return
ts = Touchstone(filename)
ts.sdata[0] = self.app.data.s11
if nr_params > 1:
ts.sdata[1] = self.app.data.s21
for dp in self.app.data.s11:
ts.sdata[2].append(Datapoint(dp.freq, 0, 0))
ts.sdata[3].append(Datapoint(dp.freq, 0, 0))
try:
ts.save(nr_params)
except IOError as e:
logger.exception("Error during file export: %s", e)
return
def test_load(self):
ts = Touchstone("./test/data/valid.s1p")
ts.load()
self.assertEqual(str(ts.opts), "# HZ S RI R 50")
self.assertEqual(len(ts.s11data), 1010)
self.assertEqual(len(ts.s21data), 0)
self.assertEqual(ts.r, 50)
ts = Touchstone("./test/data/valid.s2p")
ts.load()
ts.gen_interpolation()
self.assertEqual(str(ts.opts), "# HZ S RI R 50")
self.assertEqual(len(ts.s11data), 1020)
self.assertEqual(len(ts.s21data), 1020)
self.assertEqual(len(ts.s12data), 1020)
self.assertEqual(len(ts.s22data), 1020)
self.assertIn("! Vector Network Analyzer VNA R2", ts.comments)
self.assertEqual(ts.min_freq(), 500000)
self.assertEqual(ts.max_freq(), 900000000)
self.assertEqual(ts.s_freq("11", 1),
Datapoint(1, -3.33238E-001, 1.80018E-004))
self.assertEqual(
ts.s_freq("11", 750000),
Datapoint(750000, -0.3331754099382822, 0.00032433255669243524))
ts = Touchstone("./test/data/ma.s2p")
ts.load()
self.assertEqual(str(ts.opts), "# MHZ S MA R 50")
ts = Touchstone("./test/data/db.s2p")
ts.load()
self.assertEqual(str(ts.opts), "# HZ S DB R 50")
ts = Touchstone("./test/data/broken_pair.s2p")
with self.assertLogs(level=logging.ERROR) as cm:
ts.load()
self.assertRegex(cm.output[0], "Data values aren't pairs")
ts = Touchstone("./test/data/missing_pair.s2p")
with self.assertLogs(level=logging.ERROR) as cm:
ts.load()
self.assertRegex(cm.output[0], "Inconsistent number")
ts = Touchstone("./test/data/nonexistent.s2p")
with self.assertLogs(level=logging.ERROR) as cm:
ts.load()
self.assertRegex(cm.output[0], "No such file or directory")
def test_save(self):
ts = Touchstone("./test/data/valid.s2p")
self.assertEqual(ts.saves(), "# HZ S RI R 50\n")
ts.load()
lines = ts.saves().splitlines()
self.assertEqual(len(lines), 1021)
self.assertEqual(lines[0], "# HZ S RI R 50")
self.assertEqual(lines[1], '500000 -0.333238 0.000180018')
self.assertEqual(lines[-1], '900000000 -0.127646 0.31969')
lines = ts.saves(4).splitlines()
self.assertEqual(len(lines), 1021)
self.assertEqual(lines[0], "# HZ S RI R 50")
self.assertEqual(
lines[1], '500000 -0.333238 0.000180018 0.67478 -8.1951e-07'
' 0.67529 -8.20129e-07 -0.333238 0.000308078')
self.assertEqual(
lines[-1], '900000000 -0.127646 0.31969 0.596287 -0.503453'
' 0.599076 -0.50197 -0.122713 0.326965')
ts.filename = "./test/data/output.s2p"
ts.save(4)
os.remove(ts.filename)
ts.filename = ""
self.assertRaises(FileNotFoundError, ts.save)
ts.s11data[0] = Datapoint(100, 0.1, 0.1)
self.assertRaisesRegex(LookupError,
"Frequencies of sdata not correlated", ts.saves,
4)
def test_setter(self):
ts = Touchstone("")
dp_list = [Datapoint(1, 0.0, 0.0), Datapoint(3, 1.0, 1.0)]
ts.s11data = dp_list[:]
ts.s21data = dp_list[:]
ts.s12data = dp_list[:]
ts.s22data = dp_list[:]
self.assertEqual(ts.s11data, dp_list)
self.assertEqual(ts.s21data, dp_list)
self.assertEqual(ts.s12data, dp_list)
self.assertEqual(ts.s22data, dp_list)
self.assertEqual(ts.min_freq(), 1)
self.assertEqual(ts.max_freq(), 3)
ts.gen_interpolation()
self.assertEqual(ts.s_freq("11", 2), Datapoint(2, 0.5, 0.5))
def test_db_conversation(self):
ts_db = Touchstone("./test/data/attenuator-0643_DB.s2p")
ts_db.load()
ts_ri = Touchstone("./test/data/attenuator-0643_RI.s2p")
ts_ri.load()
ts_ma = Touchstone("./test/data/attenuator-0643_MA.s2p")
ts_ma.load()
self.assertEqual(len(ts_db.s11data), len(ts_ri.s11data))
for dps_db, dps_ri in zip(ts_db.s11data, ts_ri.s11data):
self.assertAlmostEqual(dps_db.z, dps_ri.z, places=5)
self.assertEqual(len(ts_db.s11data), len(ts_ma.s11data))
for dps_db, dps_ma in zip(ts_db.s11data, ts_ma.s11data):
self.assertAlmostEqual(dps_db.z, dps_ma.z, places=5)
def test_load(self):
ts = Touchstone("./test/data/valid.s1p")
ts.load()
self.assertEqual(str(ts.opts), "# HZ S RI R 50")
self.assertEqual(len(ts.s11data), 1010)
self.assertEqual(len(ts.s21data), 0)
self.assertEqual(ts.r, 50)
ts = Touchstone("./test/data/valid.s2p")
ts.load()
self.assertEqual(str(ts.opts), "# HZ S RI R 50")
self.assertEqual(len(ts.s11data), 1020)
self.assertEqual(len(ts.s21data), 1020)
self.assertEqual(len(ts.s12data), 1020)
self.assertEqual(len(ts.s22data), 1020)
self.assertIn("! Vector Network Analyzer VNA R2", ts.comments)
ts = Touchstone("./test/data/ma.s2p")
ts.load()
self.assertEqual(str(ts.opts), "# MHZ S MA R 50")
ts = Touchstone("./test/data/db.s2p")
ts.load()
self.assertEqual(str(ts.opts), "# HZ S DB R 50")
ts = Touchstone("./test/data/broken_pair.s2p")
with self.assertLogs(level=logging.ERROR) as cm:
ts.load()
self.assertRegex(cm.output[0], "Data values aren't pairs")
ts = Touchstone("./test/data/missing_pair.s2p")
with self.assertLogs(level=logging.ERROR) as cm:
ts.load()
self.assertRegex(cm.output[0], "Inconsistent number")
ts = Touchstone("./test/data/nonexistent.s2p")
with self.assertLogs(level=logging.ERROR) as cm:
ts.load()
self.assertRegex(cm.output[0], "No such file or directory")
def main():
parser = argparse.ArgumentParser(
description=__doc__,
formatter_class=argparse.RawDescriptionHelpFormatter)
parser.add_argument("-d",
"--debug",
action="store_true",
help="Set loglevel to debug")
parser.add_argument("-D",
"--debug-file",
help="File to write debug logging output to")
parser.add_argument(
"-f",
"--file",
help="Touchstone file to load as sweep for off device usage")
parser.add_argument(
"-r",
"--ref-file",
help="Touchstone file to load as reference for off device usage")
parser.add_argument("--version",
action="version",
version=f"NanoVNASaver {VERSION}")
args = parser.parse_args()
console_log_level = logging.WARNING
file_log_level = logging.DEBUG
print(INFO)
if args.debug:
console_log_level = logging.DEBUG
logger = logging.getLogger("NanoVNASaver")
logger.setLevel(logging.DEBUG)
ch = logging.StreamHandler()
ch.setLevel(console_log_level)
formatter = logging.Formatter(
'%(asctime)s - %(name)s - %(levelname)s - %(message)s')
ch.setFormatter(formatter)
logger.addHandler(ch)
if args.debug_file:
fh = logging.FileHandler(args.debug_file)
fh.setLevel(file_log_level)
fh.setFormatter(formatter)
logger.addHandler(fh)
logger.info("Startup...")
QtWidgets.QApplication.setAttribute(QtCore.Qt.AA_EnableHighDpiScaling,
True)
app = QtWidgets.QApplication(sys.argv)
window = NanoVNASaver()
window.show()
if args.file:
t = Touchstone(args.file)
t.load()
window.saveData(t.s11, t.s21, args.file)
window.dataUpdated()
if args.ref_file:
t = Touchstone(args.ref_file)
t.load()
window.setReference(t.s11, t.s21, args.ref_file)
window.dataUpdated()
try:
app.exec_()
except BaseException as exc:
logger.exception("%s", exc)
raise exc
