kopia lustrzana https://github.com/NanoVNA-Saver/nanovna-saver
157 wiersze
6.5 KiB
Python
157 wiersze
6.5 KiB
Python
# NanoVNASaver
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#
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# A python program to view and export Touchstone data from a NanoVNA
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# Copyright (C) 2019, 2020 Rune B. Broberg
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# Copyright (C) 2020,2021 NanoVNA-Saver Authors
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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 math
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import logging
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from PyQt5 import QtGui, QtCore
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from NanoVNASaver.RFTools import Datapoint
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from .Square import SquareChart
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logger = logging.getLogger(__name__)
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class PolarChart(SquareChart):
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def __init__(self, name=""):
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super().__init__(name)
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self.dim.width = 250
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self.dim.height = 250
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self.setMinimumSize(self.dim.width + 40, self.dim.height + 40)
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pal = QtGui.QPalette()
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pal.setColor(QtGui.QPalette.Background, self.color.background)
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self.setPalette(pal)
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self.setAutoFillBackground(True)
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def paintEvent(self, _: QtGui.QPaintEvent) -> None:
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qp = QtGui.QPainter(self)
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self.drawChart(qp)
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self.drawValues(qp)
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qp.end()
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def drawChart(self, qp: QtGui.QPainter):
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centerX = int(self.width()/2)
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centerY = int(self.height()/2)
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qp.setPen(QtGui.QPen(self.color.text))
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qp.drawText(3, 15, self.name)
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qp.setPen(QtGui.QPen(self.color.foreground))
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qp.drawEllipse(QtCore.QPoint(centerX, centerY),
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int(self.dim.width / 2),
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int(self.dim.height / 2))
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qp.drawEllipse(QtCore.QPoint(centerX, centerY),
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int(self.dim.width / 4),
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int(self.dim.height / 4))
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qp.drawLine(centerX - int(self.dim.width / 2), centerY,
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centerX + int(self.dim.width / 2), centerY)
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qp.drawLine(centerX, centerY - int(self.dim.height / 2),
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centerX, centerY + int(self.dim.height / 2))
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qp.drawLine(centerX + int(self.dim.height / 2 * math.sin(math.pi / 4)),
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centerY + int(self.dim.height / 2 * math.sin(math.pi / 4)),
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centerX - int(self.dim.height / 2 * math.sin(math.pi / 4)),
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centerY - int(self.dim.height / 2 * math.sin(math.pi / 4)))
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qp.drawLine(centerX + int(self.dim.height / 2 * math.sin(math.pi / 4)),
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centerY - int(self.dim.height / 2 * math.sin(math.pi / 4)),
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centerX - int(self.dim.height / 2 * math.sin(math.pi / 4)),
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centerY + int(self.dim.height / 2 * math.sin(math.pi / 4)))
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self.drawTitle(qp)
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def drawValues(self, qp: QtGui.QPainter):
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if len(self.data) == 0 and len(self.reference) == 0:
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return
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pen = QtGui.QPen(self.color.sweep)
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pen.setWidth(self.dim.point)
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line_pen = QtGui.QPen(self.color.sweep)
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line_pen.setWidth(self.dim.line)
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qp.setPen(pen)
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for i in range(len(self.data)):
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x = self.getXPosition(self.data[i])
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y = self.height()/2 + self.data[i].im * -1 * self.dim.height/2
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qp.drawPoint(int(x), int(y))
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if self.flag.draw_lines and i > 0:
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prevx = self.getXPosition(self.data[i-1])
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prevy = self.height() / 2 + self.data[i-1].im * -1 * self.dim.height / 2
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qp.setPen(line_pen)
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qp.drawLine(x, y, prevx, prevy)
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qp.setPen(pen)
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pen.setColor(self.color.reference)
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line_pen.setColor(self.color.reference)
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qp.setPen(pen)
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if len(self.data) > 0:
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fstart = self.data[0].freq
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fstop = self.data[len(self.data) - 1].freq
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else:
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fstart = self.reference[0].freq
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fstop = self.reference[len(self.reference) - 1].freq
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for i in range(len(self.reference)):
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data = self.reference[i]
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if data.freq < fstart or data.freq > fstop:
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continue
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x = self.getXPosition(self.reference[i])
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y = self.height()/2 + data.im * -1 * self.dim.height/2
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qp.drawPoint(int(x), int(y))
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if self.flag.draw_lines and i > 0:
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prevx = self.getXPosition(self.reference[i-1])
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prevy = self.height() / 2 + self.reference[i-1].im * -1 * self.dim.height / 2
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qp.setPen(line_pen)
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qp.drawLine(x, y, prevx, prevy)
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qp.setPen(pen)
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# Now draw the markers
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for m in self.markers:
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if m.location != -1 and m.location < len(self.data):
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x = self.getXPosition(self.data[m.location])
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y = self.height() / 2 + self.data[m.location].im * -1 * self.dim.height / 2
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self.drawMarker(x, y, qp, m.color, self.markers.index(m)+1)
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def getXPosition(self, d: Datapoint) -> int:
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return self.width()/2 + d.re * self.dim.width/2
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def getYPosition(self, d: Datapoint) -> int:
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return self.height()/2 + d.im * -1 * self.dim.height/2
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def mouseMoveEvent(self, a0: QtGui.QMouseEvent) -> None:
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if a0.buttons() == QtCore.Qt.RightButton:
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a0.ignore()
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return
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x = a0.x()
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y = a0.y()
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absx = x - (self.width() - self.dim.width) / 2
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absy = y - (self.height() - self.dim.height) / 2
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if absx < 0 or absx > self.dim.width or absy < 0 or absy > self.dim.height \
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or len(self.data) == len(self.reference) == 0:
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a0.ignore()
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return
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a0.accept()
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if len(self.data) > 0:
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target = self.data
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else:
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target = self.reference
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positions = []
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for d in target:
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thisx = self.width() / 2 + d.re * self.dim.width / 2
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thisy = self.height() / 2 + d.im * -1 * self.dim.height / 2
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positions.append(math.sqrt((x - thisx)**2 + (y - thisy)**2))
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minimum_position = positions.index(min(positions))
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m = self.getActiveMarker()
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if m is not None:
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m.setFrequency(str(round(target[minimum_position].freq)))
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m.frequencyInput.setText(str(round(target[minimum_position].freq)))
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return
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