kopia lustrzana https://github.com/NanoVNA-Saver/nanovna-saver
103 wiersze
4.6 KiB
Python
103 wiersze
4.6 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) 2020ff 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 logging
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from PyQt5 import QtGui, QtCore
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from NanoVNASaver.Charts.Chart import Chart
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from NanoVNASaver.Charts.Square import SquareChart
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logger = logging.getLogger(__name__)
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class SmithChart(SquareChart):
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def drawChart(self, qp: QtGui.QPainter) -> None:
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center_x = self.width() // 2
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center_y = self.height() // 2
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width_2 = self.dim.width // 2
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height_2 = self.dim.height // 2
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qp.setPen(QtGui.QPen(Chart.color.text))
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qp.drawText(3, 15, self.name)
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qp.setPen(QtGui.QPen(Chart.color.foreground))
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qp.drawEllipse(QtCore.QPoint(center_x, center_y), width_2, height_2)
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qp.drawLine(center_x - width_2, center_y,
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center_x + width_2, center_y)
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qp.drawEllipse(
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QtCore.QPoint(center_x + int(self.dim.width / 4), center_y),
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self.dim.width // 4, self.dim.height // 4) # Re(Z) = 1
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qp.drawEllipse(
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QtCore.QPoint(center_x + self.dim.width // 3, center_y),
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self.dim.width // 6, self.dim.height // 6) # Re(Z) = 2
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qp.drawEllipse(
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QtCore.QPoint(center_x + 3 * self.dim.width // 8, center_y),
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self.dim.width // 8, self.dim.height // 8) # Re(Z) = 3
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qp.drawEllipse(
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QtCore.QPoint(center_x + 5 * self.dim.width // 12, center_y),
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self.dim.width // 12, self.dim.height // 12) # Re(Z) = 5
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qp.drawEllipse(
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QtCore.QPoint(center_x + self.dim.width // 6, center_y),
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self.dim.width // 3, self.dim.height // 3) # Re(Z) = 0.5
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qp.drawEllipse(
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QtCore.QPoint(center_x + self.dim.width // 12, center_y),
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5 * self.dim.width // 12, 5 * self.dim.height // 12) # Re(Z) = 0.2
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qp.drawArc(center_x + 3 * self.dim.width // 8, center_y,
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self.dim.width // 4, self.dim.width // 4,
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90 * 16, 152 * 16) # Im(Z) = -5
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qp.drawArc(center_x + 3 * self.dim.width // 8, center_y,
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self.dim.width // 4, -self.dim.width // 4,
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-90 * 16, -152 * 16) # Im(Z) = 5
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qp.drawArc(center_x + self.dim.width // 4, center_y,
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width_2, height_2,
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90 * 16, 127 * 16) # Im(Z) = -2
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qp.drawArc(center_x + self.dim.width // 4, center_y,
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width_2, -height_2,
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-90 * 16, -127 * 16) # Im(Z) = 2
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qp.drawArc(center_x, center_y,
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self.dim.width, self.dim.height,
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90 * 16, 90 * 16) # Im(Z) = -1
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qp.drawArc(center_x, center_y,
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self.dim.width, - self.dim.height,
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-90 * 16, -90 * 16) # Im(Z) = 1
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qp.drawArc(center_x - width_2, center_y,
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self.dim.width * 2, self.dim.height * 2,
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int(99.5 * 16), int(43.5 * 16)) # Im(Z) = -0.5
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qp.drawArc(center_x - width_2, center_y,
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self.dim.width * 2, -self.dim.height * 2,
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int(-99.5 * 16), int(-43.5 * 16)) # Im(Z) = 0.5
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qp.drawArc(center_x - self.dim.width * 2, center_y,
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self.dim.width * 5, self.dim.height * 5,
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int(93.85 * 16), int(18.85 * 16)) # Im(Z) = -0.2
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qp.drawArc(center_x - self.dim.width * 2, center_y,
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self.dim.width * 5, -self.dim.height * 5,
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int(-93.85 * 16), int(-18.85 * 16)) # Im(Z) = 0.2
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self.drawTitle(qp)
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qp.setPen(Chart.color.swr)
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for swr in self.swrMarkers:
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if swr <= 1:
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continue
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gamma = (swr - 1) / (swr + 1)
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r = int(gamma * self.dim.width / 2)
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qp.drawEllipse(QtCore.QPoint(center_x, center_y), r, r)
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qp.drawText(
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QtCore.QRect(center_x - 50, center_y - 4 + r, 100, 20),
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QtCore.Qt.AlignCenter, f"{swr}")
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