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
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
|
#include <cmath>
#include <iostream>
#include <memory>
#include <string>
#include <QApplication>
#include <QtQml>
#include <QQmlApplicationEngine>
#include <QSurfaceFormat>
#include "main.h"
#include "mp.h"
#include "continuouscolorscale.h"
#include "scatterplot.h"
#include "voronoisplat.h"
#include "historygraph.h"
#include "barchart.h"
#include "interactionhandler.h"
#include "selectionhandler.h"
#include "skelft.h"
static QObject *mainProvider(QQmlEngine *engine, QJSEngine *scriptEngine)
{
Q_UNUSED(engine)
Q_UNUSED(scriptEngine)
return Main::instance();
}
int main(int argc, char **argv)
{
QApplication app(argc, argv);
app.setApplicationName("pm");
app.setApplicationVersion("1.0");
// app.setAttribute(Qt::AA_ShareOpenGLContexts);
QCommandLineParser parser;
parser.setApplicationDescription("Interactive multidimensional projections.");
parser.addHelpOption();
parser.addVersionOption();
parser.addPositionalArgument("dataset", "Dataset filename (.tbl file)");
QCommandLineOption indicesFileOutputOption(QStringList() << "i" << "indices",
"Filename to store the subsample indices. Omitting this option disables saving indices.",
"filename");
parser.addOption(indicesFileOutputOption);
QCommandLineOption subsampleFileOutputOption(QStringList() << "s" << "subsample",
"Filename to store subsample mapping. Omitting this option disables saving subsamples.",
"filename");
parser.addOption(subsampleFileOutputOption);
parser.process(app);
QStringList args = parser.positionalArguments();
if (args.size() != 1) {
parser.showHelp(1);
}
Main *m = Main::instance();
m->loadDataset(args[0].toStdString());
arma::mat X = m->X();
arma::vec labels = m->labels();
arma::uword n = X.n_rows;
int subsampleSize = (int) (3 * sqrt(n));
arma::uvec sampleIndices;
arma::mat Ys;
if (parser.isSet(indicesFileOutputOption)) {
const QString &indicesFilename = parser.value(indicesFileOutputOption);
m->setIndicesSavePath(indicesFilename);
QFile indicesFile(indicesFilename);
if (indicesFile.exists()) {
sampleIndices.load(indicesFilename.toStdString(), arma::raw_ascii);
subsampleSize = sampleIndices.n_elem;
} else {
// sampleIndices = relevanceSampling(X, subsampleSize);
sampleIndices = arma::randi<arma::uvec>(subsampleSize, arma::distr_param(0, n-1));
}
}
if (parser.isSet(subsampleFileOutputOption)) {
const QString &subsampleFilename = parser.value(subsampleFileOutputOption);
m->setSubsampleSavePath(subsampleFilename);
QFile subsampleFile(subsampleFilename);
if (subsampleFile.exists()) {
Ys.load(subsampleFilename.toStdString(), arma::raw_ascii);
} else {
Ys.set_size(subsampleSize, 2);
mp::forceScheme(mp::dist(X.rows(sampleIndices)), Ys);
}
}
m->setSubsampleIndices(sampleIndices);
m->setSubsample(Ys);
qmlRegisterType<Scatterplot>("PM", 1, 0, "Scatterplot");
qmlRegisterType<HistoryGraph>("PM", 1, 0, "HistoryGraph");
qmlRegisterType<BarChart>("PM", 1, 0, "BarChart");
qmlRegisterType<InteractionHandler>("PM", 1, 0, "InteractionHandler");
qmlRegisterSingletonType<Main>("PM", 1, 0, "Main", mainProvider);
// Set up multisampling
QSurfaceFormat fmt;
fmt.setSamples(16);
fmt.setRenderableType(QSurfaceFormat::OpenGL);
fmt.setVersion(4, 5);
QSurfaceFormat::setDefaultFormat(fmt);
QQmlApplicationEngine engine(QUrl("qrc:///main_view.qml"));
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->setDisplaySplat(false);
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");
skelft2DInitialization(plot->width());
// Keep track of the current subsample (in order to save them later, if requested)
QObject::connect(subsamplePlot, SIGNAL(xyChanged(const arma::mat &)),
m, SLOT(setSubsample(const arma::mat &)));
QObject::connect(subsamplePlot, SIGNAL(xyInteractivelyChanged(const arma::mat &)),
m, SLOT(setSubsample(const arma::mat &)));
// Update projection as the subsample is modified
InteractionHandler interactionHandler(X, sampleIndices);
m->setInteractionHandler(&interactionHandler);
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 &)));
m->setTechnique(InteractionHandler::TECHNIQUE_LAMP);
// 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> &)));
// Connections between history graph and subsample plot
//HistoryGraph *history = engine.rootObjects()[0]->findChild<HistoryGraph *>("history");
//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 &)));
BarChart *barChart = engine.rootObjects()[0]->findChild<BarChart *>("barChart");
barChart->setValues(arma::randn<arma::vec>(100));
//history->addHistoryItem(Ys);
plot->setColorScale(&colorScale);
plot->setColorData(labels, false);
subsamplePlot->setColorData(labels(sampleIndices), false);
subsamplePlot->setXY(Ys, false);
subsamplePlot->update();
auto ret = app.exec();
skelft2DDeinitialization();
return ret;
}
|
