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
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
|
#include <QApplication>
#include <QNetworkAccessManager>
#include <QNetworkReply>
#include <QQmlApplicationEngine>
#include <QQmlContext>
#include <QtConcurrent/QtConcurrentRun>
#include <QTimer>
#include "QmlCustomPlot.h"
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
QQmlApplicationEngine engine;
qmlRegisterType<QmlCustomPlot>("QmlCustomPlot", 1, 0, "QmlCustomPlot");
auto plot = new QCustomPlot();
plot->setOpenGl(true);
engine.rootContext()->setContextProperty("myPlot", plot);
engine.rootContext()->setContextProperty("max_diff", 0.0);
engine.rootContext()->setContextProperty("avg_diff", 0.0);
engine.rootContext()->setContextProperty("median_diff", 0.0);
QVector<qreal> x_profile;
QVector<qreal> y_profile;
QVector<qreal> prev_y_profile;
for(int x = -640; x < 640; ++x)
{
double y = double(QRandomGenerator::global()->bounded(0, 80000)) / 100.;
x_profile << x;
y_profile << y;
}
prev_y_profile = y_profile;
auto graph = plot->addGraph();
graph->setPen(QPen(QBrush(Qt::red), 2));
graph->setLineStyle(QCPGraph::lsLine);
graph->setScatterStyle(QCPScatterStyle::ssDot);
graph->setData(x_profile, y_profile);
QNetworkRequest request(QUrl("http://rpi5:8081/v1/pixels"));
auto manager = new QNetworkAccessManager(&app);
QTimer pixelsAutoRestartTimer(&app);
pixelsAutoRestartTimer.setInterval(1000);
pixelsAutoRestartTimer.setSingleShot(false);
QObject::connect(&pixelsAutoRestartTimer, &QTimer::timeout,
[&](){
manager->get(request);
});
QObject::connect(manager, &QNetworkAccessManager::finished,
[&](QNetworkReply *reply) {
// qDebug() << "replyFinished";
if (reply->error()) {
qDebug() << "replyFinished:" << reply->errorString();
return;
}
auto jsonPixels = QJsonDocument::fromJson(reply->readAll())
.object()["pixels"].toArray();
// y_profile.clear();
for (int i = 0; i < jsonPixels.count(); ++i) {
y_profile[i] = jsonPixels[i].toDouble();
}
graph->setData(x_profile, y_profile);
QVector<qreal> y_diff(y_profile.count());
qreal max_diff { 0. };
qreal min_diff { 1000000. };
size_t max_diff_idx = 0;
size_t min_diff_idx = 0;
qreal avg_diff { 0. };
for (size_t i = 0; i < y_profile.count(); ++i) {
y_diff[i] = y_profile[i] - prev_y_profile[i];
if (y_diff[i] > max_diff) {
max_diff = y_diff[i];
max_diff_idx = i;
}
if (y_diff[i] < min_diff) {
min_diff = y_diff[i];
min_diff_idx = i;
}
avg_diff += fabs(y_diff[i]);
}
avg_diff /= y_diff.size();
// for (size_t i = 0; i < y_profile.size(); ++i) {
// if
// }
// // const auto max_diff = std::max_element(y_diff.begin(), y_diff.end());
// const auto avg_diff = std::accumulate(y_diff.begin(), y_diff.end(), 0.0) / y_diff.size();
std::sort(y_diff.begin(), y_diff.end());
const auto median_diff = y_diff[y_diff.size() * 3 / 4];
engine.rootContext()->setContextProperty("max_diff", max_diff);
engine.rootContext()->setContextProperty("max_diff_idx", int(max_diff_idx));
engine.rootContext()->setContextProperty("min_diff", min_diff);
engine.rootContext()->setContextProperty("min_diff_idx", int(min_diff_idx));
engine.rootContext()->setContextProperty("avg_diff", avg_diff);
engine.rootContext()->setContextProperty("median_diff", median_diff);
manager->get(request);
pixelsAutoRestartTimer.start();
prev_y_profile = y_profile;
});
manager->get(request);
pixelsAutoRestartTimer.start();
// auto pixelsRequestFuture = QtConcurrent::run([&](){
// QThread::sleep(1);
// // x_profile.clear();
// y_profile.clear();
// for(int x = -640; x < 640; ++x)
// {
// double y = double(QRandomGenerator::global()->bounded(0, 80000)) / 100.;
// // x_profile << x;
// y_profile << y;
// }
// graph->setData(x_profile, y_profile);
// });
QObject::connect(
&engine,
&QQmlApplicationEngine::objectCreationFailed,
&app,
[]() { QCoreApplication::exit(-1); },
Qt::QueuedConnection);
engine.loadFromModule("eurydice", "Main");
return app.exec();
}
|
