kopia lustrzana https://github.com/NanoVNA-Saver/nanovna-saver
1113 wiersze
47 KiB
Python
1113 wiersze
47 KiB
Python
# NanoVNASaver - a python program to view and export Touchstone data from a NanoVNA
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# Copyright (C) 2019. Rune B. Broberg
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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import collections
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import math
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import threading
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from time import sleep, strftime, gmtime
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from typing import List
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import numpy as np
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import serial
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from PyQt5 import QtWidgets, QtCore, QtGui
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from serial.tools import list_ports
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from .Chart import Chart, PhaseChart, VSWRChart, PolarChart, SmithChart, LogMagChart, QualityFactorChart
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from .Calibration import CalibrationWindow, Calibration
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from .Marker import Marker
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from .SweepWorker import SweepWorker
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from .Touchstone import Touchstone
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Datapoint = collections.namedtuple('Datapoint', 'freq re im')
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VID = 1155
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PID = 22336
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class NanoVNASaver(QtWidgets.QWidget):
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version = "0.0.8"
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def __init__(self):
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super().__init__()
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self.setWindowIcon(QtGui.QIcon("icon_48x48.png"))
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self.settings = QtCore.QSettings(QtCore.QSettings.IniFormat,
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QtCore.QSettings.UserScope,
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"NanoVNASaver", "NanoVNASaver")
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print("Settings: " + self.settings.fileName())
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self.threadpool = QtCore.QThreadPool()
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self.worker = SweepWorker(self)
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self.noSweeps = 1 # Number of sweeps to run
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self.serialLock = threading.Lock()
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self.serial = serial.Serial()
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self.dataLock = threading.Lock()
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self.data: List[Datapoint] = []
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self.data21: List[Datapoint] = []
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self.referenceS11data: List[Datapoint] = []
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self.referenceS21data: List[Datapoint] = []
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self.sweepSource = ""
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self.referenceSource = ""
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self.calibration = Calibration()
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self.markers = []
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self.serialPort = self.getport()
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# self.serialSpeed = "115200"
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self.sweepColor = self.settings.value("SweepColor", defaultValue=QtGui.QColor(160, 140, 20, 128), type=QtGui.QColor)
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self.referenceColor = self.settings.value("ReferenceColor", defaultValue=QtGui.QColor(0, 0, 255, 32), type=QtGui.QColor)
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self.baseTitle = "NanoVNA Saver " + NanoVNASaver.version
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self.updateTitle()
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layout = QtWidgets.QGridLayout()
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scrollarea = QtWidgets.QScrollArea()
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outer = QtWidgets.QVBoxLayout()
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outer.addWidget(scrollarea)
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self.setLayout(outer)
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scrollarea.setWidgetResizable(True)
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window_width = self.settings.value("WindowWidth", 1350, type=int)
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window_height = self.settings.value("WindowHeight", 950, type=int)
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self.resize(window_width, window_height)
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scrollarea.setSizePolicy(QtWidgets.QSizePolicy.MinimumExpanding, QtWidgets.QSizePolicy.MinimumExpanding)
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self.setSizePolicy(QtWidgets.QSizePolicy.MinimumExpanding, QtWidgets.QSizePolicy.MinimumExpanding)
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widget = QtWidgets.QWidget()
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widget.setLayout(layout)
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scrollarea.setWidget(widget)
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self.s11SmithChart = SmithChart("S11 Smith Chart")
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self.s21PolarChart = PolarChart("S21 Polar Plot")
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self.s11LogMag = LogMagChart("S11 Return Loss")
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self.s21LogMag = LogMagChart("S21 Gain")
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self.s11Phase = PhaseChart("S11 Phase")
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self.s21Phase = PhaseChart("S21 Phase")
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self.s11VSWR = VSWRChart("S11 VSWR")
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self.s11QualityFactor = QualityFactorChart("S11 Quality Factor")
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self.s11charts: List[Chart] = []
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self.s11charts.append(self.s11SmithChart)
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self.s11charts.append(self.s11LogMag)
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self.s11charts.append(self.s11Phase)
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self.s11charts.append(self.s11VSWR)
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self.s11charts.append(self.s11QualityFactor)
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self.s21charts: List[Chart] = []
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self.s21charts.append(self.s21PolarChart)
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self.s21charts.append(self.s21LogMag)
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self.s21charts.append(self.s21Phase)
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self.charts = self.s11charts + self.s21charts
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self.charts_layout = QtWidgets.QGridLayout()
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left_column = QtWidgets.QVBoxLayout()
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marker_column = QtWidgets.QVBoxLayout()
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right_column = QtWidgets.QVBoxLayout()
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right_column.addLayout(self.charts_layout)
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layout.addLayout(left_column, 0, 0)
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layout.addLayout(marker_column, 0, 1)
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layout.addLayout(right_column, 0, 2)
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################################################################################################################
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# Sweep control
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################################################################################################################
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sweep_control_box = QtWidgets.QGroupBox()
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sweep_control_box.setMaximumWidth(250)
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sweep_control_box.setTitle("Sweep control")
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sweep_control_layout = QtWidgets.QFormLayout(sweep_control_box)
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self.sweepStartInput = QtWidgets.QLineEdit("")
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self.sweepStartInput.setAlignment(QtCore.Qt.AlignRight)
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sweep_control_layout.addRow(QtWidgets.QLabel("Sweep start"), self.sweepStartInput)
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self.sweepEndInput = QtWidgets.QLineEdit("")
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self.sweepEndInput.setAlignment(QtCore.Qt.AlignRight)
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sweep_control_layout.addRow(QtWidgets.QLabel("Sweep end"), self.sweepEndInput)
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self.sweepCountInput = QtWidgets.QLineEdit("")
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self.sweepCountInput.setAlignment(QtCore.Qt.AlignRight)
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self.sweepCountInput.setText("1")
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sweep_control_layout.addRow(QtWidgets.QLabel("Sweep count"), self.sweepCountInput)
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self.btnColorPicker = QtWidgets.QPushButton("█")
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self.btnColorPicker.setFixedWidth(20)
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self.setSweepColor(self.sweepColor)
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self.btnColorPicker.clicked.connect(lambda: self.setSweepColor(QtWidgets.QColorDialog.getColor(self.sweepColor, options=QtWidgets.QColorDialog.ShowAlphaChannel)))
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sweep_control_layout.addRow("Sweep color", self.btnColorPicker)
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self.continuousSweep = QtWidgets.QCheckBox()
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self.continuousSweep.stateChanged.connect(lambda: self.worker.setContinuousSweep(self.continuousSweep.isChecked()))
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sweep_control_layout.addRow("Continuous sweep", self.continuousSweep)
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self.sweepProgressBar = QtWidgets.QProgressBar()
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self.sweepProgressBar.setMaximum(100)
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self.sweepProgressBar.setValue(0)
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sweep_control_layout.addRow(self.sweepProgressBar)
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self.btnSweep = QtWidgets.QPushButton("Sweep")
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self.btnSweep.clicked.connect(self.sweep)
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self.btnStopSweep = QtWidgets.QPushButton("Stop")
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self.btnStopSweep.clicked.connect(self.stopSweep)
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self.btnStopSweep.setDisabled(True)
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btnLayout = QtWidgets.QHBoxLayout()
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btnLayout.addWidget(self.btnSweep)
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btnLayout.addWidget(self.btnStopSweep)
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btnLayout.setContentsMargins(0, 0, 0, 0)
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btnLayoutWidget = QtWidgets.QWidget()
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btnLayoutWidget.setLayout(btnLayout)
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sweep_control_layout.addRow(btnLayoutWidget)
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left_column.addWidget(sweep_control_box)
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################################################################################################################
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# Marker control
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################################################################################################################
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marker_control_box = QtWidgets.QGroupBox()
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marker_control_box.setTitle("Markers")
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marker_control_box.setMaximumWidth(350)
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marker_control_layout = QtWidgets.QFormLayout(marker_control_box)
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mouse_marker_color = self.settings.value("MouseMarkerColor", QtGui.QColor(20, 255, 20), QtGui.QColor)
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mouse_marker = Marker("Mouse marker", mouse_marker_color)
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mouse_marker.updated.connect(self.dataUpdated)
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self.markers.append(mouse_marker)
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marker1_color = self.settings.value("Marker1Color", QtGui.QColor(255, 0, 20), QtGui.QColor)
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marker1 = Marker("Marker 1", marker1_color)
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marker1.updated.connect(self.dataUpdated)
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label, layout = marker1.getRow()
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marker_control_layout.addRow(label, layout)
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self.markers.append(marker1)
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marker2_color = self.settings.value("Marker2Color", QtGui.QColor(20, 0, 255), QtGui.QColor)
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marker2 = Marker("Marker 2", marker2_color)
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marker2.updated.connect(self.dataUpdated)
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label, layout = marker2.getRow()
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marker_control_layout.addRow(label, layout)
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self.markers.append(marker2)
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for c in self.charts:
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c.setMarkers(self.markers)
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label, layout = mouse_marker.getRow()
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marker_control_layout.addRow(label, layout)
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#mouse_marker.frequencyInput.setDisabled(True)
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marker_column.addWidget(marker_control_box)
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marker_column.addWidget(self.markers[1].getGroupBox())
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marker_column.addWidget(self.markers[2].getGroupBox())
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marker_column.addWidget(self.markers[0].getGroupBox())
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################################################################################################################
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# Statistics/analysis
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################################################################################################################
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s11_control_box = QtWidgets.QGroupBox()
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s11_control_box.setTitle("S11")
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s11_control_layout = QtWidgets.QFormLayout()
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s11_control_box.setLayout(s11_control_layout)
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s11_control_box.setMaximumWidth(250)
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self.s11_min_swr_label = QtWidgets.QLabel()
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s11_control_layout.addRow("Min VSWR:", self.s11_min_swr_label)
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self.s11_min_rl_label = QtWidgets.QLabel()
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s11_control_layout.addRow("Return loss:", self.s11_min_rl_label)
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left_column.addWidget(s11_control_box)
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s21_control_box = QtWidgets.QGroupBox()
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s21_control_box.setTitle("S21")
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s21_control_layout = QtWidgets.QFormLayout()
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s21_control_box.setLayout(s21_control_layout)
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s21_control_box.setMaximumWidth(250)
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self.s21_min_gain_label = QtWidgets.QLabel()
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s21_control_layout.addRow("Min gain:", self.s21_min_gain_label)
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self.s21_max_gain_label = QtWidgets.QLabel()
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s21_control_layout.addRow("Max gain:", self.s21_max_gain_label)
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left_column.addWidget(s21_control_box)
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marker_column.addSpacerItem(QtWidgets.QSpacerItem(1, 1, QtWidgets.QSizePolicy.Fixed, QtWidgets.QSizePolicy.Expanding))
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################################################################################################################
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# TDR
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################################################################################################################
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tdr_control_box = QtWidgets.QGroupBox()
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tdr_control_box.setTitle("TDR")
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tdr_control_layout = QtWidgets.QFormLayout()
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tdr_control_box.setLayout(tdr_control_layout)
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tdr_control_box.setMaximumWidth(250)
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self.tdr_velocity_dropdown = QtWidgets.QComboBox()
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self.tdr_velocity_dropdown.addItem("Jelly filled (0.64)", 0.64)
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self.tdr_velocity_dropdown.addItem("Polyethylene (0.66)", 0.66)
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self.tdr_velocity_dropdown.addItem("PTFE (Teflon) (0.70)", 0.70)
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self.tdr_velocity_dropdown.addItem("Pulp Insulation (0.72)", 0.72)
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self.tdr_velocity_dropdown.addItem("Foam or Cellular PE (0.78)", 0.78)
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self.tdr_velocity_dropdown.addItem("Semi-solid PE (SSPE) (0.84)", 0.84)
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self.tdr_velocity_dropdown.addItem("Air (Helical spacers) (0.94)", 0.94)
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self.tdr_velocity_dropdown.insertSeparator(self.tdr_velocity_dropdown.count())
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# Lots of table types added by Larry Goga, AE5CZ
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self.tdr_velocity_dropdown.addItem("RG-6/U PE 75ohm (Belden 8215) (0.66)", 0.66)
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self.tdr_velocity_dropdown.addItem("RG-6/U Foam 75 ohm (Belden 9290) (0.81)", 0.81)
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self.tdr_velocity_dropdown.addItem("RG-8/U PE 75 ohm (Belden 8237) (0.66)", 0.66)
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self.tdr_velocity_dropdown.addItem("RG-8/U Foam (Belden 8214) (0.78)", 0.78)
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self.tdr_velocity_dropdown.addItem("RG-8/U (Belden 9913) (0.84)", 0.84)
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self.tdr_velocity_dropdown.addItem("RG-8X (Belden9258) (0.82)", 0.82)
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self.tdr_velocity_dropdown.addItem("RG-11/U 75 ohm Foam HDPE (Belden 9292) (0.84)", 0.84)
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self.tdr_velocity_dropdown.addItem("RG-58/U PE (Belden 9201) (0.66)", 0.66)
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self.tdr_velocity_dropdown.addItem("RG-58A/U Foam (Belden 8219) (0.73)", 0.73)
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self.tdr_velocity_dropdown.addItem("RG-59A/U PE 75 ohm (Belden 8241) (0.66)", 0.66)
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self.tdr_velocity_dropdown.addItem("RG-59A/U Foam 75 ohm (Belden 8241F) (0.78)", 0.78)
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self.tdr_velocity_dropdown.addItem("RG-174 PE (Belden 8216)(0.66)", 0.66)
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self.tdr_velocity_dropdown.addItem("RG-174 Foam (Belden 7805R) (0.735)", 0.735)
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self.tdr_velocity_dropdown.addItem("RG-213/U PE (Belden 8267) (0.66)", 0.66)
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self.tdr_velocity_dropdown.addItem("RG316 (0.69)", 0.69)
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self.tdr_velocity_dropdown.addItem("RG402 (0.695)", 0.695)
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self.tdr_velocity_dropdown.addItem("LMR-240 (0.84)", 0.84)
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self.tdr_velocity_dropdown.addItem("LMR-240UF (0.80)", 0.80)
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self.tdr_velocity_dropdown.addItem("LMR-400 (0.85)", 0.85)
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self.tdr_velocity_dropdown.addItem("LMR400UF (0.85)", 0.85)
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self.tdr_velocity_dropdown.addItem("Davis BuryFlex (0.82)", 0.82)
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self.tdr_velocity_dropdown.insertSeparator(self.tdr_velocity_dropdown.count())
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self.tdr_velocity_dropdown.addItem("Custom", -1)
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self.tdr_velocity_dropdown.setCurrentIndex(1) # Default to PE (0.66)
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self.tdr_velocity_dropdown.currentIndexChanged.connect(self.updateTDR)
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tdr_control_layout.addRow(self.tdr_velocity_dropdown)
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self.tdr_velocity_input = QtWidgets.QLineEdit()
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self.tdr_velocity_input.setDisabled(True)
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self.tdr_velocity_input.setText("0.66")
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self.tdr_velocity_input.textChanged.connect(self.updateTDR)
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tdr_control_layout.addRow("Velocity factor", self.tdr_velocity_input)
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self.tdr_result_label = QtWidgets.QLabel()
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tdr_control_layout.addRow("Estimated cable length:", self.tdr_result_label)
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left_column.addWidget(tdr_control_box)
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################################################################################################################
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# Spacer
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################################################################################################################
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left_column.addSpacerItem(QtWidgets.QSpacerItem(1, 1, QtWidgets.QSizePolicy.Fixed, QtWidgets.QSizePolicy.Expanding))
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################################################################################################################
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# Reference control
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################################################################################################################
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reference_control_box = QtWidgets.QGroupBox()
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reference_control_box.setMaximumWidth(250)
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reference_control_box.setTitle("Reference sweep")
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reference_control_layout = QtWidgets.QFormLayout(reference_control_box)
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btnSetReference = QtWidgets.QPushButton("Set current as reference")
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btnSetReference.clicked.connect(self.setReference)
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self.btnResetReference = QtWidgets.QPushButton("Reset reference")
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self.btnResetReference.clicked.connect(self.resetReference)
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self.btnResetReference.setDisabled(True)
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self.btnReferenceColorPicker = QtWidgets.QPushButton("█")
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self.btnReferenceColorPicker.setFixedWidth(20)
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self.setReferenceColor(self.referenceColor)
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self.btnReferenceColorPicker.clicked.connect(lambda: self.setReferenceColor(
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QtWidgets.QColorDialog.getColor(self.referenceColor, options=QtWidgets.QColorDialog.ShowAlphaChannel)))
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set_reference_layout = QtWidgets.QHBoxLayout()
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set_reference_layout.addWidget(btnSetReference)
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set_reference_layout.addWidget(self.btnReferenceColorPicker)
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reference_control_layout.addRow(set_reference_layout)
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reference_control_layout.addRow(self.btnResetReference)
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left_column.addWidget(reference_control_box)
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################################################################################################################
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# Serial control
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################################################################################################################
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serial_control_box = QtWidgets.QGroupBox()
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serial_control_box.setMaximumWidth(250)
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serial_control_box.setTitle("Serial port control")
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serial_control_layout = QtWidgets.QFormLayout(serial_control_box)
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self.serialPortInput = QtWidgets.QLineEdit(self.serialPort)
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self.serialPortInput.setAlignment(QtCore.Qt.AlignRight)
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# self.serialSpeedInput = QtWidgets.QLineEdit(str(self.serialSpeed))
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# self.serialSpeedInput.setValidator(QtGui.QIntValidator())
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# self.serialSpeedInput.setAlignment(QtCore.Qt.AlignRight)
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serial_control_layout.addRow(QtWidgets.QLabel("Serial port"), self.serialPortInput)
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# serial_control_layout.addRow(QtWidgets.QLabel("Speed"), self.serialSpeedInput)
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self.btnSerialToggle = QtWidgets.QPushButton("Connect to NanoVNA")
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self.btnSerialToggle.clicked.connect(self.serialButtonClick)
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serial_control_layout.addRow(self.btnSerialToggle)
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left_column.addWidget(serial_control_box)
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################################################################################################################
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# File control
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################################################################################################################
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self.fileWindow = QtWidgets.QWidget()
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self.fileWindow.setWindowTitle("Files")
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file_window_layout = QtWidgets.QVBoxLayout()
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self.fileWindow.setLayout(file_window_layout)
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reference_file_control_box = QtWidgets.QGroupBox("Import file")
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reference_file_control_layout = QtWidgets.QFormLayout(reference_file_control_box)
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self.referenceFileNameInput = QtWidgets.QLineEdit("")
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btnReferenceFilePicker = QtWidgets.QPushButton("...")
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btnReferenceFilePicker.setMaximumWidth(25)
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btnReferenceFilePicker.clicked.connect(self.pickReferenceFile)
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referenceFileNameLayout = QtWidgets.QHBoxLayout()
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referenceFileNameLayout.addWidget(self.referenceFileNameInput)
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referenceFileNameLayout.addWidget(btnReferenceFilePicker)
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reference_file_control_layout.addRow(QtWidgets.QLabel("Filename"), referenceFileNameLayout)
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file_window_layout.addWidget(reference_file_control_box)
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btnLoadReference = QtWidgets.QPushButton("Load reference")
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btnLoadReference.clicked.connect(self.loadReferenceFile)
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btnLoadSweep = QtWidgets.QPushButton("Load as sweep")
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btnLoadSweep.clicked.connect(self.loadSweepFile)
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reference_file_control_layout.addRow(btnLoadReference)
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reference_file_control_layout.addRow(btnLoadSweep)
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|
|
file_control_box = QtWidgets.QGroupBox()
|
|
file_control_box.setTitle("Export file")
|
|
file_control_box.setMaximumWidth(300)
|
|
file_control_layout = QtWidgets.QFormLayout(file_control_box)
|
|
self.fileNameInput = QtWidgets.QLineEdit("")
|
|
btnFilePicker = QtWidgets.QPushButton("...")
|
|
btnFilePicker.setMaximumWidth(25)
|
|
btnFilePicker.clicked.connect(self.pickFile)
|
|
fileNameLayout = QtWidgets.QHBoxLayout()
|
|
fileNameLayout.addWidget(self.fileNameInput)
|
|
fileNameLayout.addWidget(btnFilePicker)
|
|
|
|
file_control_layout.addRow(QtWidgets.QLabel("Filename"), fileNameLayout)
|
|
|
|
self.btnExportFile = QtWidgets.QPushButton("Export data S1P")
|
|
self.btnExportFile.clicked.connect(self.exportFileS1P)
|
|
file_control_layout.addRow(self.btnExportFile)
|
|
|
|
self.btnExportFile = QtWidgets.QPushButton("Export data S2P")
|
|
self.btnExportFile.clicked.connect(self.exportFileS2P)
|
|
file_control_layout.addRow(self.btnExportFile)
|
|
|
|
file_window_layout.addWidget(file_control_box)
|
|
|
|
btnOpenFileWindow = QtWidgets.QPushButton("Files ...")
|
|
btnOpenFileWindow.clicked.connect(self.displayFileWindow)
|
|
left_column.addWidget(btnOpenFileWindow)
|
|
|
|
################################################################################################################
|
|
# Calibration
|
|
################################################################################################################
|
|
|
|
btnOpenCalibrationWindow = QtWidgets.QPushButton("Calibration ...")
|
|
self.calibrationWindow = CalibrationWindow(self)
|
|
btnOpenCalibrationWindow.clicked.connect(self.displayCalibrationWindow)
|
|
left_column.addWidget(btnOpenCalibrationWindow)
|
|
|
|
################################################################################################################
|
|
# Display setup
|
|
################################################################################################################
|
|
|
|
b = QtWidgets.QPushButton("Display setup ...")
|
|
b.setMaximumWidth(250)
|
|
self.display_setupWindow = DisplaySettingsWindow(self)
|
|
b.clicked.connect(self.displaySettingsWindow)
|
|
left_column.addWidget(b)
|
|
|
|
btn_about = QtWidgets.QPushButton("About ...")
|
|
btn_about.setMaximumWidth(250)
|
|
btn_about.clicked.connect(lambda: QtWidgets.QMessageBox.about(self, "About NanoVNASaver",
|
|
"NanoVNASaver version "
|
|
+ NanoVNASaver.version +
|
|
"\n\n\N{COPYRIGHT SIGN} Copyright 2019 Rune B. Broberg\n" +
|
|
"This program comes with ABSOLUTELY NO WARRANTY\n" +
|
|
"This program is licensed under the GNU General Public License version 3\n\n" +
|
|
"See https://github.com/mihtjel/nanovna-saver for further details"))
|
|
left_column.addWidget(btn_about)
|
|
|
|
################################################################################################################
|
|
# Right side
|
|
################################################################################################################
|
|
|
|
self.lister = QtWidgets.QPlainTextEdit()
|
|
self.lister.setFixedHeight(200)
|
|
self.lister.setMaximumWidth(350)
|
|
marker_column.addWidget(self.lister)
|
|
|
|
self.worker.signals.updated.connect(self.dataUpdated)
|
|
self.worker.signals.finished.connect(self.sweepFinished)
|
|
|
|
# Get that windows port
|
|
@staticmethod
|
|
def getport() -> str:
|
|
device_list = list_ports.comports()
|
|
for d in device_list:
|
|
if (d.vid == VID and
|
|
d.pid == PID):
|
|
port = d.device
|
|
return port
|
|
|
|
def pickReferenceFile(self):
|
|
filename, _ = QtWidgets.QFileDialog.getOpenFileName(directory=self.referenceFileNameInput.text(),
|
|
filter="Touchstone Files (*.s1p *.s2p);;All files (*.*)")
|
|
if filename != "":
|
|
self.referenceFileNameInput.setText(filename)
|
|
|
|
def pickFile(self):
|
|
filename, _ = QtWidgets.QFileDialog.getSaveFileName(directory=self.fileNameInput.text(),
|
|
filter="Touchstone Files (*.s1p *.s2p);;All files (*.*)")
|
|
if filename != "":
|
|
self.fileNameInput.setText(filename)
|
|
|
|
def exportFileS1P(self):
|
|
print("Save file to " + self.fileNameInput.text())
|
|
if len(self.data) == 0:
|
|
self.lister.appendPlainText("No data stored, nothing written.")
|
|
return
|
|
filename = self.fileNameInput.text()
|
|
if filename == "":
|
|
self.lister.appendPlainText("No filename entered.")
|
|
return
|
|
try:
|
|
file = open(filename, "w+")
|
|
self.lister.clear()
|
|
self.lister.appendPlainText("# Hz S RI R 50")
|
|
file.write("# Hz S RI R 50\n")
|
|
for i in range(len(self.data)):
|
|
if i == 0 or self.data[i].freq != self.data[i-1].freq:
|
|
self.lister.appendPlainText(str(self.data[i].freq) + " " + str(self.data[i].re) + " " + str(self.data[i].im))
|
|
file.write(str(self.data[i].freq) + " " + str(self.data[i].re) + " " + str(self.data[i].im) + "\n")
|
|
file.close()
|
|
except Exception as e:
|
|
print("Error during file export: " + str(e))
|
|
self.lister.appendPlainText("Error during file export: " + str(e))
|
|
return
|
|
|
|
self.lister.appendPlainText("")
|
|
self.lister.appendPlainText("File " + filename + " written.")
|
|
|
|
def exportFileS2P(self):
|
|
print("Save file to " + self.fileNameInput.text())
|
|
if len(self.data) == 0:
|
|
self.lister.appendPlainText("No data stored, nothing written.")
|
|
return
|
|
filename = self.fileNameInput.text()
|
|
if filename == "":
|
|
self.lister.appendPlainText("No filename entered.")
|
|
return
|
|
try:
|
|
file = open(filename, "w+")
|
|
self.lister.clear()
|
|
self.lister.appendPlainText("# Hz S RI R 50")
|
|
file.write("# Hz S RI R 50\n")
|
|
for i in range(len(self.data)):
|
|
if i == 0 or self.data[i].freq != self.data[i-1].freq:
|
|
self.lister.appendPlainText(str(self.data[i].freq) + " " + str(self.data[i].re) + " " + str(self.data[i].im) + " " +
|
|
str(self.data21[i].re) + " " + str(self.data21[i].im) + " 0 0 0 0")
|
|
file.write(str(self.data[i].freq) + " " + str(self.data[i].re) + " " + str(self.data[i].im) + " " +
|
|
str(self.data21[i].re) + " " + str(self.data21[i].im) + " 0 0 0 0\n")
|
|
file.close()
|
|
except Exception as e:
|
|
print("Error during file export: " + str(e))
|
|
self.lister.appendPlainText("Error during file export: " + str(e))
|
|
return
|
|
|
|
self.lister.appendPlainText("")
|
|
self.lister.appendPlainText("File " + filename + " written.")
|
|
|
|
def serialButtonClick(self):
|
|
if self.serial.is_open:
|
|
self.stopSerial()
|
|
else:
|
|
self.startSerial()
|
|
return
|
|
|
|
def flushSerialBuffers(self):
|
|
if self.serialLock.acquire():
|
|
self.serial.write(b"\r\n\r\n")
|
|
sleep(0.1)
|
|
self.serial.reset_input_buffer()
|
|
self.serial.reset_output_buffer()
|
|
sleep(0.1)
|
|
self.serialLock.release()
|
|
|
|
def startSerial(self):
|
|
if self.serialLock.acquire():
|
|
self.serialPort = self.serialPortInput.text()
|
|
self.lister.appendPlainText("Opening serial port " + self.serialPort)
|
|
try:
|
|
self.serial = serial.Serial(port=self.serialPort, baudrate=115200)
|
|
self.serial.timeout = 0.05
|
|
except serial.SerialException as exc:
|
|
self.lister.appendPlainText("Tried to open " + self.serialPort + " and failed: " + str(exc))
|
|
self.serialLock.release()
|
|
return
|
|
self.btnSerialToggle.setText("Disconnect")
|
|
|
|
self.serialLock.release()
|
|
sleep(0.05)
|
|
|
|
self.flushSerialBuffers()
|
|
sleep(0.05)
|
|
|
|
self.lister.appendPlainText(self.readFirmware())
|
|
|
|
frequencies = self.readValues("frequencies")
|
|
|
|
self.sweepStartInput.setText(str(frequencies[0]))
|
|
self.sweepEndInput.setText(str(frequencies[100]))
|
|
|
|
self.sweep()
|
|
return
|
|
|
|
def stopSerial(self):
|
|
if self.serialLock.acquire():
|
|
self.serial.close()
|
|
self.serialLock.release()
|
|
self.btnSerialToggle.setText("Connect to NanoVNA")
|
|
|
|
def writeSerial(self, command):
|
|
if not self.serial.is_open:
|
|
print("Warning: Writing without serial port being opened (" + command + ")")
|
|
return
|
|
if self.serialLock.acquire():
|
|
try:
|
|
self.serial.write(str(command + "\r").encode('ascii'))
|
|
self.serial.readline()
|
|
except serial.SerialException as exc:
|
|
print("Exception received: " + str(exc))
|
|
self.serialLock.release()
|
|
return
|
|
|
|
def setSweep(self, start, stop):
|
|
# print("Sending: " + "sweep " + str(start) + " " + str(stop) + " 101")
|
|
self.writeSerial("sweep " + str(start) + " " + str(stop) + " 101")
|
|
|
|
def sweep(self):
|
|
# Run the serial port update
|
|
if not self.serial.is_open:
|
|
return
|
|
self.worker.stopped = False
|
|
|
|
self.sweepProgressBar.setValue(0)
|
|
self.btnSweep.setDisabled(True)
|
|
self.btnStopSweep.setDisabled(False)
|
|
self.markers[0].frequencyInput.setText("")
|
|
for m in self.markers:
|
|
m.resetLabels()
|
|
self.s11_min_rl_label.setText("")
|
|
self.s11_min_swr_label.setText("")
|
|
self.s21_min_gain_label.setText("")
|
|
self.s21_max_gain_label.setText("")
|
|
self.tdr_result_label.setText("")
|
|
|
|
self.threadpool.start(self.worker)
|
|
|
|
def stopSweep(self):
|
|
self.worker.stopped = True
|
|
|
|
def readFirmware(self):
|
|
if self.serialLock.acquire():
|
|
try:
|
|
data = "a"
|
|
while data != "":
|
|
data = self.serial.readline().decode('ascii')
|
|
# Then send the command to read data
|
|
self.serial.write("info\r".encode('ascii'))
|
|
except serial.SerialException as exc:
|
|
print("Exception received: " + str(exc))
|
|
result = ""
|
|
data = ""
|
|
sleep(0.01)
|
|
while "ch>" not in data:
|
|
data = self.serial.readline().decode('ascii')
|
|
result += data
|
|
self.serialLock.release()
|
|
return result
|
|
|
|
def readValues(self, value):
|
|
if self.serialLock.acquire():
|
|
try:
|
|
data = "a"
|
|
while data != "":
|
|
data = self.serial.readline().decode('ascii')
|
|
|
|
# Then send the command to read data
|
|
self.serial.write(str(value + "\r").encode('ascii'))
|
|
except serial.SerialException as exc:
|
|
print("Exception received: " + str(exc))
|
|
result = ""
|
|
data = ""
|
|
sleep(0.05)
|
|
while "ch>" not in data:
|
|
data = self.serial.readline().decode('ascii')
|
|
result += data
|
|
values = result.split("\r\n")
|
|
self.serialLock.release()
|
|
return values[1:102]
|
|
|
|
def saveData(self, data, data12, source=None):
|
|
if self.dataLock.acquire(blocking=True):
|
|
self.data = data
|
|
self.data21 = data12
|
|
else:
|
|
print("ERROR: Failed acquiring data lock while saving.")
|
|
self.dataLock.release()
|
|
if source is not None:
|
|
self.sweepSource = source
|
|
else:
|
|
self.sweepSource = strftime("%Y-%m-%d %H:%M:%S", gmtime())
|
|
|
|
def dataUpdated(self):
|
|
if self.dataLock.acquire(blocking=True):
|
|
for m in self.markers:
|
|
m.findLocation(self.data)
|
|
m.resetLabels()
|
|
m.updateLabels(self.data, self.data21)
|
|
|
|
for c in self.s11charts:
|
|
c.setData(self.data)
|
|
|
|
for c in self.s21charts:
|
|
c.setData(self.data21)
|
|
self.sweepProgressBar.setValue(self.worker.percentage)
|
|
self.updateTDR()
|
|
# Find the minimum S11 VSWR:
|
|
minVSWR = 100
|
|
minVSWRfreq = -1
|
|
for d in self.data:
|
|
_, _, vswr = self.vswr(d)
|
|
if minVSWR > vswr > 0:
|
|
minVSWR = vswr
|
|
minVSWRfreq = d.freq
|
|
|
|
if minVSWRfreq > -1:
|
|
self.s11_min_swr_label.setText(str(round(minVSWR, 3)) + " @ " + self.formatFrequency(minVSWRfreq))
|
|
self.s11_min_rl_label.setText(str(round(20*math.log10((minVSWR-1)/(minVSWR+1)), 3)) + " dB")
|
|
else:
|
|
self.s11_min_swr_label.setText("")
|
|
self.s11_min_rl_label.setText("")
|
|
minGain = 100
|
|
minGainFreq = -1
|
|
maxGain = -100
|
|
maxGainFreq = -1
|
|
for d in self.data21:
|
|
gain = self.gain(d)
|
|
if gain > maxGain:
|
|
maxGain = gain
|
|
maxGainFreq = d.freq
|
|
if gain < minGain:
|
|
minGain = gain
|
|
minGainFreq = d.freq
|
|
|
|
if maxGainFreq > -1:
|
|
self.s21_min_gain_label.setText(str(round(minGain, 3)) + " dB @ " + self.formatFrequency(minGainFreq))
|
|
self.s21_max_gain_label.setText(str(round(maxGain, 3)) + " dB @ " + self.formatFrequency(maxGainFreq))
|
|
else:
|
|
self.s21_min_gain_label.setText("")
|
|
self.s21_max_gain_label.setText("")
|
|
|
|
else:
|
|
print("ERROR: Failed acquiring data lock while updating")
|
|
self.updateTitle()
|
|
self.dataLock.release()
|
|
|
|
@staticmethod
|
|
def vswr(data: Datapoint):
|
|
re = data.re
|
|
im = data.im
|
|
re50 = 50 * (1 - re * re - im * im) / (1 + re * re + im * im - 2 * re)
|
|
im50 = 50 * (2 * im) / (1 + re * re + im * im - 2 * re)
|
|
mag = math.sqrt((re50 - 50) * (re50 - 50) + im50 * im50) / math.sqrt((re50 + 50) * (re50 + 50) + im50 * im50)
|
|
# mag = math.sqrt(re * re + im * im) # Is this even right?
|
|
vswr = (1 + mag) / (1 - mag)
|
|
return im50, re50, vswr
|
|
|
|
@staticmethod
|
|
def qualifyFactor(data: Datapoint):
|
|
im50, re50, _ = NanoVNASaver.vswr(data)
|
|
if re50 != 0:
|
|
Q = im50 / re50
|
|
else:
|
|
Q = 0
|
|
return Q
|
|
|
|
@staticmethod
|
|
def capacitanceEquivalent(im50, freq) -> str:
|
|
capacitance = 10**12/(freq * 2 * math.pi * im50)
|
|
return str(round(-capacitance, 3)) + " pF"
|
|
|
|
@staticmethod
|
|
def inductanceEquivalent(im50, freq) -> str:
|
|
inductance = im50 / (freq * 2 * math.pi)
|
|
return str(round(inductance * 1000000000, 3)) + " nH"
|
|
|
|
@staticmethod
|
|
def gain(data: Datapoint):
|
|
re = data.re
|
|
im = data.im
|
|
re50 = 50 * (1 - re * re - im * im) / (1 + re * re + im * im - 2 * re)
|
|
im50 = 50 * (2 * im) / (1 + re * re + im * im - 2 * re)
|
|
# Calculate the gain / reflection coefficient
|
|
mag = math.sqrt((re50 - 50) * (re50 - 50) + im50 * im50) / math.sqrt(
|
|
(re50 + 50) * (re50 + 50) + im50 * im50)
|
|
return 20 * math.log10(mag)
|
|
|
|
def sweepFinished(self):
|
|
self.sweepProgressBar.setValue(100)
|
|
self.btnSweep.setDisabled(False)
|
|
self.btnStopSweep.setDisabled(True)
|
|
|
|
def updateTDR(self):
|
|
c = 299792458
|
|
if len(self.data) < 2:
|
|
return
|
|
|
|
if self.tdr_velocity_dropdown.currentData() == -1:
|
|
self.tdr_velocity_input.setDisabled(False)
|
|
else:
|
|
self.tdr_velocity_input.setDisabled(True)
|
|
self.tdr_velocity_input.setText(str(self.tdr_velocity_dropdown.currentData()))
|
|
|
|
try:
|
|
v = float(self.tdr_velocity_input.text())
|
|
except ValueError:
|
|
return
|
|
|
|
step_size = self.data[1].freq - self.data[0].freq
|
|
if step_size == 0:
|
|
self.tdr_result_label.setText("")
|
|
self.lister.appendPlainText("Cannot compute cable length at 0 span")
|
|
return
|
|
|
|
s11 = []
|
|
for d in self.data:
|
|
s11.append(np.complex(d.re, d.im))
|
|
|
|
window = np.blackman(len(self.data))
|
|
|
|
windowed_s11 = window * s11
|
|
|
|
td = np.abs(np.fft.ifft(windowed_s11, 2**14))
|
|
|
|
time_axis = np.linspace(0, 1/step_size, 2**14)
|
|
distance_axis = time_axis * v * c
|
|
|
|
# peak = np.max(td) # We should check that this is an actual *peak*, and not just a vague maximum
|
|
index_peak = np.argmax(td)
|
|
|
|
self.tdr_result_label.setText(str(round(distance_axis[index_peak]/2, 3)) + " m")
|
|
|
|
def setSweepColor(self, color: QtGui.QColor):
|
|
if color.isValid():
|
|
self.sweepColor = color
|
|
p = self.btnColorPicker.palette()
|
|
p.setColor(QtGui.QPalette.ButtonText, color)
|
|
self.btnColorPicker.setPalette(p)
|
|
self.settings.setValue("SweepColor", color)
|
|
self.settings.sync()
|
|
for c in self.charts:
|
|
c.setSweepColor(color)
|
|
|
|
@staticmethod
|
|
def formatFrequency(freq):
|
|
if math.log10(freq) < 3:
|
|
return str(freq) + " Hz"
|
|
elif math.log10(freq) < 7:
|
|
return "{:.3f}".format(freq/1000) + " kHz"
|
|
elif math.log10(freq) < 8:
|
|
return "{:.4f}".format(freq/1000000) + " MHz"
|
|
else:
|
|
return "{:.3f}".format(freq/1000000) + " MHz"
|
|
|
|
@staticmethod
|
|
def parseFrequency(freq: str):
|
|
freq = freq.replace(" ", "") # People put all sorts of weird whitespace in.
|
|
if freq.isnumeric():
|
|
return int(freq)
|
|
|
|
multiplier = 1
|
|
freq = freq.lower()
|
|
|
|
if freq.endswith("k"):
|
|
multiplier = 1000
|
|
freq = freq[:-1]
|
|
elif freq.endswith("m"):
|
|
multiplier = 1000000
|
|
freq = freq[:-1]
|
|
|
|
if freq.isnumeric():
|
|
return int(freq) * multiplier
|
|
|
|
try:
|
|
f = float(freq)
|
|
return int(round(multiplier * f))
|
|
except ValueError:
|
|
# Okay, we couldn't parse this however much we tried.
|
|
return -1
|
|
|
|
def setReference(self, s11data=None, s21data=None, source=None):
|
|
if not s11data:
|
|
s11data = self.data
|
|
if not s21data:
|
|
s21data = self.data21
|
|
self.referenceS11data = s11data
|
|
for c in self.s11charts:
|
|
c.setReference(s11data)
|
|
|
|
self.referenceS21data = s21data
|
|
for c in self.s21charts:
|
|
c.setReference(s21data)
|
|
self.btnResetReference.setDisabled(False)
|
|
|
|
if source is not None:
|
|
# Save the reference source info
|
|
self.referenceSource = source
|
|
else:
|
|
self.referenceSource = self.sweepSource
|
|
self.updateTitle()
|
|
|
|
def updateTitle(self):
|
|
title = self.baseTitle
|
|
insert = ""
|
|
if self.sweepSource != "":
|
|
insert += "Sweep: " + self.sweepSource + " @ " + str(len(self.data)) + " points"
|
|
if self.referenceSource != "":
|
|
if insert != "":
|
|
insert += ", "
|
|
insert += "Reference: " + self.referenceSource + " @ " + str(len(self.referenceS11data)) + " points"
|
|
if insert != "":
|
|
title = title + " (" + insert + ")"
|
|
self.setWindowTitle(title)
|
|
|
|
def resetReference(self):
|
|
self.referenceS11data = []
|
|
self.referenceS21data = []
|
|
self.referenceSource = ""
|
|
for c in self.charts:
|
|
c.resetReference()
|
|
self.btnResetReference.setDisabled(True)
|
|
|
|
def setReferenceColor(self, color):
|
|
if color.isValid():
|
|
self.referenceColor = color
|
|
p = self.btnReferenceColorPicker.palette()
|
|
p.setColor(QtGui.QPalette.ButtonText, color)
|
|
self.btnReferenceColorPicker.setPalette(p)
|
|
self.settings.setValue("ReferenceColor", color)
|
|
self.settings.sync()
|
|
|
|
for c in self.charts:
|
|
c.setReferenceColor(color)
|
|
|
|
def loadReferenceFile(self):
|
|
filename = self.referenceFileNameInput.text()
|
|
if filename is not "":
|
|
self.resetReference()
|
|
t = Touchstone(filename)
|
|
t.load()
|
|
self.setReference(t.s11data, t.s21data, filename)
|
|
|
|
def loadSweepFile(self):
|
|
filename = self.referenceFileNameInput.text()
|
|
if filename is not "":
|
|
self.data = []
|
|
self.data21 = []
|
|
t = Touchstone(filename)
|
|
t.load()
|
|
self.saveData(t.s11data, t.s21data, filename)
|
|
self.dataUpdated()
|
|
|
|
def sizeHint(self) -> QtCore.QSize:
|
|
return QtCore.QSize(1100, 950)
|
|
|
|
def displaySettingsWindow(self):
|
|
self.display_setupWindow.show()
|
|
QtWidgets.QApplication.setActiveWindow(self.display_setupWindow)
|
|
|
|
def displayCalibrationWindow(self):
|
|
self.calibrationWindow.show()
|
|
QtWidgets.QApplication.setActiveWindow(self.calibrationWindow)
|
|
|
|
def displayFileWindow(self):
|
|
self.fileWindow.show()
|
|
QtWidgets.QApplication.setActiveWindow(self.fileWindow)
|
|
|
|
def closeEvent(self, a0: QtGui.QCloseEvent) -> None:
|
|
self.worker.stopped = True
|
|
self.settings.setValue("MouseMarkerColor", self.markers[0].color)
|
|
self.settings.setValue("Marker1Color", self.markers[1].color)
|
|
self.settings.setValue("Marker2Color", self.markers[2].color)
|
|
|
|
self.settings.setValue("WindowHeight", self.height())
|
|
self.settings.setValue("WindowWidth", self.width())
|
|
|
|
self.settings.sync()
|
|
self.threadpool.waitForDone(2500)
|
|
a0.accept()
|
|
|
|
|
|
class DisplaySettingsWindow(QtWidgets.QWidget):
|
|
def __init__(self, app: NanoVNASaver):
|
|
super().__init__()
|
|
|
|
self.app = app
|
|
self.setWindowTitle("Display settings")
|
|
|
|
layout = QtWidgets.QVBoxLayout()
|
|
self.setLayout(layout)
|
|
|
|
display_options_box = QtWidgets.QGroupBox("Options")
|
|
display_options_layout = QtWidgets.QFormLayout(display_options_box)
|
|
|
|
self.show_lines_option = QtWidgets.QCheckBox("Show lines")
|
|
show_lines_label = QtWidgets.QLabel("Displays a thin line between data points")
|
|
self.show_lines_option.stateChanged.connect(self.changeShowLines)
|
|
display_options_layout.addRow(self.show_lines_option, show_lines_label)
|
|
|
|
self.dark_mode_option = QtWidgets.QCheckBox("Dark mode")
|
|
dark_mode_label = QtWidgets.QLabel("Black background with white text")
|
|
self.dark_mode_option.stateChanged.connect(self.changeDarkMode)
|
|
display_options_layout.addRow(self.dark_mode_option, dark_mode_label)
|
|
|
|
layout.addWidget(display_options_box)
|
|
|
|
charts_box = QtWidgets.QGroupBox("Displayed charts")
|
|
charts_layout = QtWidgets.QGridLayout(charts_box)
|
|
|
|
# selections = ["S11 Smith chart",
|
|
# "S11 LogMag",
|
|
# "S11 VSWR",
|
|
# "S11 Phase",
|
|
# "S21 Smith chart",
|
|
# "S21 LogMag",
|
|
# "S21 Phase",
|
|
# "None"]
|
|
|
|
selections = []
|
|
|
|
for c in self.app.charts:
|
|
selections.append(c.name)
|
|
|
|
selections.append("None")
|
|
|
|
chart00_selection = QtWidgets.QComboBox()
|
|
chart00_selection.addItems(selections)
|
|
chart00_selection.setCurrentIndex(selections.index(self.app.settings.value("Chart00", "S11 Smith Chart")))
|
|
chart00_selection.currentTextChanged.connect(lambda: self.changeChart(0, 0, chart00_selection.currentText()))
|
|
charts_layout.addWidget(chart00_selection, 0, 0)
|
|
|
|
chart01_selection = QtWidgets.QComboBox()
|
|
chart01_selection.addItems(selections)
|
|
chart01_selection.setCurrentIndex(selections.index(self.app.settings.value("Chart01", "S11 Return Loss")))
|
|
chart01_selection.currentTextChanged.connect(lambda: self.changeChart(0, 1, chart01_selection.currentText()))
|
|
charts_layout.addWidget(chart01_selection, 0, 1)
|
|
|
|
chart02_selection = QtWidgets.QComboBox()
|
|
chart02_selection.addItems(selections)
|
|
chart02_selection.setCurrentIndex(selections.index(self.app.settings.value("Chart02", "None")))
|
|
chart02_selection.currentTextChanged.connect(lambda: self.changeChart(0, 2, chart02_selection.currentText()))
|
|
charts_layout.addWidget(chart02_selection, 0, 2)
|
|
|
|
chart10_selection = QtWidgets.QComboBox()
|
|
chart10_selection.addItems(selections)
|
|
chart10_selection.setCurrentIndex(selections.index(self.app.settings.value("Chart10", "S21 Polar Plot")))
|
|
chart10_selection.currentTextChanged.connect(lambda: self.changeChart(1, 0, chart10_selection.currentText()))
|
|
charts_layout.addWidget(chart10_selection, 1, 0)
|
|
|
|
chart11_selection = QtWidgets.QComboBox()
|
|
chart11_selection.addItems(selections)
|
|
chart11_selection.setCurrentIndex(selections.index(self.app.settings.value("Chart11", "S21 Gain")))
|
|
chart11_selection.currentTextChanged.connect(lambda: self.changeChart(1, 1, chart11_selection.currentText()))
|
|
charts_layout.addWidget(chart11_selection, 1, 1)
|
|
|
|
chart12_selection = QtWidgets.QComboBox()
|
|
chart12_selection.addItems(selections)
|
|
chart12_selection.setCurrentIndex(selections.index(self.app.settings.value("Chart12", "None")))
|
|
chart12_selection.currentTextChanged.connect(lambda: self.changeChart(1, 2, chart12_selection.currentText()))
|
|
charts_layout.addWidget(chart12_selection, 1, 2)
|
|
|
|
self.changeChart(0, 0, chart00_selection.currentText())
|
|
self.changeChart(0, 1, chart01_selection.currentText())
|
|
self.changeChart(0, 2, chart02_selection.currentText())
|
|
self.changeChart(1, 0, chart10_selection.currentText())
|
|
self.changeChart(1, 1, chart11_selection.currentText())
|
|
self.changeChart(1, 2, chart12_selection.currentText())
|
|
|
|
layout.addWidget(charts_box)
|
|
self.dark_mode_option.setChecked(self.app.settings.value("DarkMode", False, bool))
|
|
self.show_lines_option.setChecked(self.app.settings.value("ShowLines", False, bool))
|
|
|
|
def changeChart(self, x, y, chart):
|
|
found = None
|
|
for c in self.app.charts:
|
|
if c.name == chart:
|
|
found = c
|
|
|
|
self.app.settings.setValue("Chart" + str(x) + str(y), chart)
|
|
|
|
oldWidget = self.app.charts_layout.itemAtPosition(x, y)
|
|
if oldWidget is not None:
|
|
w = oldWidget.widget()
|
|
self.app.charts_layout.removeWidget(w)
|
|
w.hide()
|
|
if found is not None:
|
|
self.app.charts_layout.addWidget(found, x, y)
|
|
if found.isHidden():
|
|
found.show()
|
|
|
|
def changeShowLines(self):
|
|
state = self.show_lines_option.isChecked()
|
|
self.app.settings.setValue("ShowLines", state)
|
|
for c in self.app.charts:
|
|
c.setDrawLines(state)
|
|
|
|
def changeDarkMode(self):
|
|
state = self.dark_mode_option.isChecked()
|
|
self.app.settings.setValue("DarkMode", state)
|
|
if state:
|
|
for c in self.app.charts:
|
|
c.setBackgroundColor(QtGui.QColor(QtCore.Qt.black))
|
|
c.setTextColor(QtGui.QColor(QtCore.Qt.white))
|
|
else:
|
|
for c in self.app.charts:
|
|
c.setBackgroundColor(QtGui.QColor(QtCore.Qt.white))
|
|
c.setTextColor(QtGui.QColor(QtCore.Qt.black))
|