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
|
#include <cmath>
#include <memory>
#include <iostream>
#include <QSurfaceFormat>
#include <QApplication>
#include <QQmlApplicationEngine>
#include "mp.h"
#include "continuouscolorscale.h"
#include "scatterplot.h"
#include "historygraph.h"
#include "interactionhandler.h"
#include "selectionhandler.h"
#include "effectivenessobserver.h"
#include "distortionobserver.h"
#include "npdistortion.h"
int main(int argc, char **argv)
{
QApplication app(argc, argv);
qmlRegisterType<Scatterplot>("PM", 1, 0, "Scatterplot");
qmlRegisterType<HistoryGraph>("PM", 1, 0, "HistoryGraph");
// Set up multisampling
QSurfaceFormat fmt;
fmt.setSamples(16);
QSurfaceFormat::setDefaultFormat(fmt);
QQmlApplicationEngine engine(QUrl("qrc:///main_view.qml"));
arma::mat dataset;
if (argc > 1) {
dataset.load(argv[1], arma::raw_ascii);
} else {
dataset.load(std::cin, arma::raw_ascii);
}
arma::mat X = dataset.cols(0, dataset.n_cols - 2);
arma::vec labels = dataset.col(dataset.n_cols - 1);
arma::uword n = dataset.n_rows;
arma::uword subsampleSize = (arma::uword) n / 10.f;
arma::uvec sampleIndices = arma::randi<arma::uvec>(subsampleSize, arma::distr_param(0, n-1));
arma::mat Ys(subsampleSize, 2, arma::fill::randn);
mp::forceScheme(mp::dist(X.rows(sampleIndices)), Ys);
ColorScale colorScale{
QColor("#1f77b4"),
QColor("#ff7f0e"),
QColor("#2ca02c"),
QColor("#d62728"),
QColor("#9467bd"),
QColor("#8c564b"),
QColor("#e377c2"),
QColor("#17becf"),
QColor("#7f7f7f"),
};
colorScale.setExtents(labels.min(), labels.max());
//ContinuousColorScale colorScale = ContinuousColorScale::builtin(ContinuousColorScale::RED_GRAY_BLUE);
//colorScale.setExtents(-1, 1);
Scatterplot *subsamplePlot = engine.rootObjects()[0]->findChild<Scatterplot *>("subsamplePlot");
subsamplePlot->setAcceptedMouseButtons(Qt::LeftButton | Qt::MiddleButton | Qt::RightButton);
// subsamplePlot->setColorData(arma::zeros<arma::vec>(subsampleSize));
subsamplePlot->setColorScale(&colorScale);
Scatterplot *plot = engine.rootObjects()[0]->findChild<Scatterplot *>("plot");
// connect both plots through interaction handler
InteractionHandler interactionHandler(X, sampleIndices);
QObject::connect(subsamplePlot, SIGNAL(xyChanged(const arma::mat &)),
&interactionHandler, SLOT(setSubsample(const arma::mat &)));
QObject::connect(subsamplePlot, SIGNAL(xyInteractivelyChanged(const arma::mat &)),
&interactionHandler, SLOT(setSubsample(const arma::mat &)));
QObject::connect(&interactionHandler, SIGNAL(subsampleChanged(const arma::mat &)),
plot, SLOT(setXY(const arma::mat &)));
// linking between selections in subsample plot and full dataset plot
SelectionHandler selectionHandler(sampleIndices);
QObject::connect(subsamplePlot, SIGNAL(selectionChanged(const QSet<int> &)),
&selectionHandler, SLOT(setSelection(const QSet<int> &)));
QObject::connect(&selectionHandler, SIGNAL(selectionChanged(const QSet<int> &)),
plot, SLOT(setSelection(const QSet<int> &)));
HistoryGraph *history = engine.rootObjects()[0]->findChild<HistoryGraph *>("history");
// connections between history graph and subsample plot
QObject::connect(subsamplePlot, SIGNAL(xyInteractivelyChanged(const arma::mat &)),
history, SLOT(addHistoryItem(const arma::mat &)));
QObject::connect(history, SIGNAL(currentItemChanged(const arma::mat &)),
subsamplePlot, SLOT(setXY(const arma::mat &)));
DistortionObserver distortionObs(X, sampleIndices);
std::unique_ptr<DistortionMeasure> distortionMeasure(new NPDistortion());
distortionObs.setMeasure(distortionMeasure.get());
QObject::connect(&interactionHandler, SIGNAL(subsampleChanged(const arma::mat &)),
&distortionObs, SLOT(setMap(const arma::mat &)));
QObject::connect(&distortionObs, SIGNAL(mapChanged(const arma::vec &)),
plot, SLOT(setColorData(const arma::vec &)));
EffectiveInteractionEnforcer enforcer(sampleIndices);
QObject::connect(subsamplePlot, SIGNAL(selectionChanged(const QSet<int> &)),
&enforcer, SLOT(setSelection(const QSet<int> &)));
QObject::connect(plot, SIGNAL(colorDataChanged(const arma::vec &)),
&enforcer, SLOT(setMeasureDifference(const arma::vec &)));
QObject::connect(&enforcer, SIGNAL(effectivenessChanged(const arma::vec &)),
subsamplePlot, SLOT(setColorData(const arma::vec &)));
/*
ContinuousColorScale ccolorScale = ContinuousColorScale::builtin(ContinuousColorScale::RED_GRAY_BLUE);
ccolorScale.setExtents(-1, 1);
plot->setColorScale(&ccolorScale);
*/
plot->setColorScale(&colorScale);
history->addHistoryItem(Ys);
subsamplePlot->setXY(Ys);
subsamplePlot->setColorData(labels(sampleIndices));
plot->setColorData(labels);
return app.exec();
}
|