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
|
#include <cmath>
#include <memory>
#include <iostream>
#include <QSurfaceFormat>
#include <QApplication>
#include <QQmlApplicationEngine>
#include "mp.h"
#include "scatterplot.h"
#include "interactionhandler.h"
#include "distortionobserver.h"
#include "npdistortion.h"
int main(int argc, char **argv)
{
QApplication app(argc, argv);
qmlRegisterType<Scatterplot>("PM", 1, 0, "Scatterplot");
// 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) sqrt(n) * 3;
arma::uvec sampleIndices = arma::randi<arma::uvec>(subsampleSize, arma::distr_param(0, n-1));
arma::mat Ys(subsampleSize, 2, arma::fill::randn);
Ys = mp::forceScheme(mp::dist(X.rows(sampleIndices)), Ys);
Scatterplot *subsamplePlot = engine.rootObjects()[0]->findChild<Scatterplot *>("subsamplePlot");
subsamplePlot->setAcceptedMouseButtons(Qt::LeftButton | Qt::MiddleButton | Qt::RightButton);
subsamplePlot->setXY(Ys);
subsamplePlot->setColorData(labels(sampleIndices));
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(&interactionHandler, SIGNAL(subsampleChanged(const arma::mat &)),
plot, SLOT(setXY(const arma::mat &)));
// TODO: works; though it needs measures implementation
// std::unique_ptr<DistortionObserver> distortionObs(new NPDistortion(X, sampleIndices));
// QObject::connect(&interactionHandler, SIGNAL(subsampleChanged(const arma::mat &)),
// distortionObs.get(), SLOT(setMap(const arma::mat &)));
// QObject::connect(distortionObs.get(), SIGNAL(mapChanged(const arma::vec &)),
// plot, SLOT(setColorData(const arma::vec &)));
interactionHandler.setSubsample(Ys);
return app.exec();
}
|
