forked from NanoVNA-Saver/nanovna-saver
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathSmithChart.py
124 lines (108 loc) · 6.44 KB
/
SmithChart.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
# NanoVNASaver - a python program to view and export Touchstone data from a NanoVNA
# Copyright (C) 2019. Rune B. Broberg
#
# 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 3 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, see <https://www.gnu.org/licenses/>.
import collections
from typing import List
from PyQt5 import QtWidgets, QtGui, QtCore
from Chart import Chart
from Marker import Marker
Datapoint = collections.namedtuple('Datapoint', 'freq re im')
class SmithChart(Chart):
def __init__(self, name=""):
super().__init__()
self.chartWidth = 360
self.chartHeight = 36
self.name = name
self.setMinimumSize(self.chartWidth + 40, self.chartHeight + 40)
sizepolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Preferred, QtWidgets.QSizePolicy.MinimumExpanding)
sizepolicy.setHeightForWidth(True)
self.setSizePolicy(sizepolicy)
pal = QtGui.QPalette()
pal.setColor(QtGui.QPalette.Background, QtGui.QColor("white"))
self.setPalette(pal)
self.setAutoFillBackground(True)
self.marker1Color = QtGui.QColor(255, 0, 20)
self.marker2Color = QtGui.QColor(20, 0, 255)
self.sweepColor = QtGui.QColor(220, 200, 30, 128)
self.sweepColor = QtGui.QColor(50, 50, 200, 64)
def resizeEvent(self, a0: QtGui.QResizeEvent) -> None:
self.chartWidth = min(a0.size().width()-40, a0.size().height()-40)
self.chartHeight = min(a0.size().width()-40, a0.size().height()-40)
self.update()
def paintEvent(self, a0: QtGui.QPaintEvent) -> None:
qp = QtGui.QPainter(self)
#qp.begin(self) # Apparently not needed?
self.drawSmithChart(qp)
self.drawValues(qp)
qp.end()
def drawSmithChart(self, qp: QtGui.QPainter):
centerX = int(self.width()/2)
centerY = int(self.height()/2)
qp.drawText(3, 15, self.name)
qp.setPen(QtGui.QPen(QtGui.QColor("lightgray")))
qp.drawEllipse(QtCore.QPoint(centerX, centerY), int(self.chartWidth/2), int(self.chartHeight/2))
qp.drawLine(centerX - int(self.chartWidth/2), centerY, centerX + int(self.chartWidth/2), centerY)
qp.drawEllipse(QtCore.QPoint(centerX + int(self.chartWidth/4), centerY), int(self.chartWidth/4), int(self.chartHeight/4)) # Re(Z) = 1
qp.drawEllipse(QtCore.QPoint(centerX + int(2/3*self.chartWidth/2), centerY), int(self.chartWidth/6), int(self.chartHeight/6)) # Re(Z) = 2
qp.drawEllipse(QtCore.QPoint(centerX + int(3 / 4 * self.chartWidth / 2), centerY), int(self.chartWidth / 8), int(self.chartHeight / 8)) # Re(Z) = 3
qp.drawEllipse(QtCore.QPoint(centerX + int(5 / 6 * self.chartWidth / 2), centerY), int(self.chartWidth / 12), int(self.chartHeight / 12)) # Re(Z) = 5
qp.drawEllipse(QtCore.QPoint(centerX + int(1 / 3 * self.chartWidth / 2), centerY), int(self.chartWidth / 3), int(self.chartHeight / 3)) # Re(Z) = 0.5
qp.drawEllipse(QtCore.QPoint(centerX + int(1 / 6 * self.chartWidth / 2), centerY), int(self.chartWidth / 2.4), int(self.chartHeight / 2.4)) # Re(Z) = 0.2
qp.drawArc(centerX + int(3/8*self.chartWidth), centerY, int(self.chartWidth/4), int(self.chartWidth/4), 90*16, 152*16) # Im(Z) = -5
qp.drawArc(centerX + int(3/8*self.chartWidth), centerY, int(self.chartWidth/4), -int(self.chartWidth/4), -90 * 16, -152 * 16) # Im(Z) = 5
qp.drawArc(centerX + int(self.chartWidth/4), centerY, int(self.chartWidth/2), int(self.chartHeight/2), 90*16, 127*16) # Im(Z) = -2
qp.drawArc(centerX + int(self.chartWidth/4), centerY, int(self.chartWidth/2), -int(self.chartHeight/2), -90*16, -127*16) # Im(Z) = 2
qp.drawArc(centerX, centerY, self.chartWidth, self.chartHeight, 90*16, 90*16) # Im(Z) = -1
qp.drawArc(centerX, centerY, self.chartWidth, -self.chartHeight, -90 * 16, -90 * 16) # Im(Z) = 1
qp.drawArc(centerX - int(self.chartWidth/2), centerY, self.chartWidth*2, self.chartHeight*2, int(99.5*16), int(43.5*16)) # Im(Z) = -0.5
qp.drawArc(centerX - int(self.chartWidth/2), centerY, self.chartWidth*2, -self.chartHeight*2, int(-99.5 * 16), int(-43.5 * 16)) # Im(Z) = 0.5
qp.drawArc(centerX - self.chartWidth*2, centerY, self.chartWidth*5, self.chartHeight*5, int(93.85*16), int(18.85*16)) # Im(Z) = -0.2
qp.drawArc(centerX - self.chartWidth*2, centerY, self.chartWidth*5, -self.chartHeight*5, int(-93.85 * 16), int(-18.85 * 16)) # Im(Z) = 0.2
def drawValues(self, qp: QtGui.QPainter):
if len(self.data) == 0 and len(self.reference) == 0:
return
pen = QtGui.QPen(self.sweepColor)
pen.setWidth(2)
highlighter = QtGui.QPen(QtGui.QColor(20, 0, 255))
highlighter.setWidth(3)
qp.setPen(pen)
for i in range(len(self.data)):
x = self.width()/2 + self.data[i].re * self.chartWidth/2
y = self.height()/2 + self.data[i].im * -1 * self.chartHeight/2
qp.drawPoint(int(x), int(y))
pen.setColor(self.referenceColor)
qp.setPen(pen)
if len(self.data) > 0:
fstart = self.data[0].freq
fstop = self.data[len(self.data)-1].freq
else:
fstart = self.reference[0].freq
fstop = self.reference[len(self.reference)-1].freq
for data in self.reference:
if data.freq < fstart or data.freq > fstop:
continue
x = self.width()/2 + data.re * self.chartWidth/2
y = self.height()/2 + data.im * -1 * self.chartHeight/2
qp.drawPoint(int(x), int(y))
# Now draw the markers
for m in self.markers:
if m.location != -1:
highlighter.setColor(m.color)
qp.setPen(highlighter)
x = self.width() / 2 + self.data[m.location].re * self.chartWidth / 2
y = self.height() / 2 + self.data[m.location].im * -1 * self.chartHeight / 2
qp.drawPoint(int(x), int(y))
def heightForWidth(self, a0: int) -> int:
return a0