-
Notifications
You must be signed in to change notification settings - Fork 0
/
Loop_graph.cpp
110 lines (96 loc) · 3.38 KB
/
Loop_graph.cpp
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
#include "Loop_graph.h"
/*!
* \brief kerrRotationGraph::kerrRotationGraph
* \param parent (window to show in)
*
* This sets up the margins and chart type for the chart.
*/
Loop_graph::Loop_graph(QWidget *parent) : QChartView(parent) {
auto chartView = new QChartView(m_chart);
chartView->setRenderHint(QPainter::Antialiasing);
m_chart->setMargins(QMargins(0, 0, 0, 0));
m_chart->setBackgroundRoundness(0);
this->setChart(m_chart);
this->showChart();
}
/*!
* \brief Loop_graph::~Loop_graph
* clear the memory on destruction of this object.
*/
Loop_graph::~Loop_graph() {
delete m_chart;
delete m_coersivity;
delete m_series_increase;
delete m_series_decrease;
}
/*!
* \brief Loop_graph::addMapToSeries
* this converts the data in the graph map into series for the QT chart
* library to understand. It makes two series so that two lines are produced
* on the same x position.
*/
void Loop_graph::addMapToSeries() {
delete m_series_increase;
delete m_series_decrease;
m_series_increase = new QLineSeries();
m_series_decrease = new QLineSeries();
for (auto const &val : *m_graphMap) {
double indx = val.first;
QPointF point_s = QPointF(indx, val.second.first);
QPointF point_p = QPointF(indx, val.second.second);
m_series_increase->append(point_p); // p
m_series_decrease->append(point_s); // s
}
this->showChart();
}
/*!
* \brief Loop_graph::showChart
* This adds the series to the chart and sets the axis. Plus the axis labels.
*/
void Loop_graph::showChart() {
m_chart->addSeries(this->m_series_increase);
m_chart->addSeries(this->m_series_decrease);
m_chart->legend()->setVisible(false);
this->m_chart->createDefaultAxes();
m_chart->axisX()->setTitleText("H");
m_chart->axisY()->setTitleText("Kerr Signal");
this->show();
}
/*!
* \brief Loop_graph::updateCoersivity
* \param coersivity
*
* This is called whenever the coersivity is changed in the UI. This adjusts the
* x offset for the tanh lines on the series, which is done on the next update of the series.
*/
void Loop_graph::updateCoersivity(double coersivity) {
this->m_coersivity = new double(coersivity);
}
/*!
* \brief Loop_graph::updateSeries
* \param Er
*
* called everytime a new ray hits the analyser. This ray is the latest ray.
*
* This calculates the lines to plot on the chart. It uses the coersivity set from updateCoersivity.
* It takes in the latest Er (polarisation in s and p planes) of the lastest ray.
*
* Works by setting the scale of the x axis to be -3 * coersivity to +3 * coersivity. Then steps through
* this range and generates the value of tanh for both lines at this point. With the hValue as a multiplier,
* hValue being the applied magnetic force. This information is then saved into a map which is converted to
* line series in addMapToSeries().
*/
void Loop_graph::updateSeries(const Eigen::Vector2cd Er) {
if (this->m_coersivity != nullptr && *this->m_coersivity != 0.0) {
this->m_graphMap->clear();
double step = *m_coersivity / 100.0;
double hValue = std::pow(Er.norm(), 2.0);
for (double i = -(*m_coersivity * 3); i <= (*m_coersivity * 3); i += step) {
auto yValues =
LoopGraphItem((hValue * std::tanh(i - *this->m_coersivity)),
(hValue * std::tanh(i + *this->m_coersivity)));
this->m_graphMap->insert(std::pair<double, LoopGraphItem>(i, yValues));
}
this->addMapToSeries();
}
}