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
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
|
#include <cmath>
#include <iostream>
#include <numeric>
#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 "barchart.h"
#include "colormap.h"
#include "manipulationhandler.h"
#include "mapscalehandler.h"
#include "selectionhandler.h"
#include "brushinghandler.h"
#include "projectionobserver.h"
static QObject *mainProvider(QQmlEngine *engine, QJSEngine *scriptEngine)
{
Q_UNUSED(engine)
Q_UNUSED(scriptEngine)
return Main::instance();
}
arma::uvec extractCPs(const arma::mat &X)
{
int numCPs = (int) (3 * sqrt(X.n_rows));
return arma::randi<arma::uvec>(numCPs, arma::distr_param(0, X.n_rows - 1));
}
int main(int argc, char **argv)
{
QApplication app(argc, argv);
app.setApplicationName("pm");
app.setApplicationVersion("1.0");
// app.setAttribute(Qt::AA_ShareOpenGLContexts);
// Command line parser
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 control points' indices. Omitting this option disables saving indices.",
"filename");
parser.addOption(indicesFileOutputOption);
QCommandLineOption cpFileOutputOption(QStringList() << "c" << "cpoints",
"Filename to store the control points' map. Omitting this option disables saving this map.",
"filename");
parser.addOption(cpFileOutputOption);
parser.process(app);
QStringList args = parser.positionalArguments();
if (args.size() != 1) {
parser.showHelp(1);
}
// Load dataset
Main *m = Main::instance();
m->loadDataset(args[0].toStdString());
arma::mat X = m->X();
arma::vec labels = m->labels();
arma::uvec cpIndices;
arma::mat Ys;
// Load/generate indices
QString indicesFilename;
if (parser.isSet(indicesFileOutputOption)) {
indicesFilename = parser.value(indicesFileOutputOption);
}
QFile indicesFile(indicesFilename);
if (indicesFile.exists()) {
m->setIndicesSavePath(indicesFilename);
cpIndices.load(indicesFilename.toStdString(), arma::raw_ascii);
} else {
cpIndices = extractCPs(X);
}
// Load/generate CPs
QString cpFilename;
if (parser.isSet(cpFileOutputOption)) {
cpFilename = parser.value(cpFileOutputOption);
}
QFile cpFile(cpFilename);
if (cpFile.exists()) {
m->setCPSavePath(cpFilename);
Ys.load(cpFilename.toStdString(), arma::raw_ascii);
} else {
Ys.set_size(cpIndices.n_elem, 2);
mp::forceScheme(mp::dist(X.rows(cpIndices)), Ys);
}
if (cpIndices.n_elem != Ys.n_rows) {
std::cerr << "The number of CP indices and the CP map do not match." << std::endl;
return 1;
}
// Sort indices so some operations become easier later
arma::uvec cpSortedIndices = arma::sort_index(cpIndices);
cpIndices = cpIndices(cpSortedIndices);
Ys = Ys.rows(cpSortedIndices);
m->setCPIndices(cpIndices);
m->setCP(Ys);
// Set up multisampling
QSurfaceFormat fmt;
fmt.setRenderableType(QSurfaceFormat::OpenGL);
fmt.setVersion(4, 5);
fmt.setRedBufferSize(8);
fmt.setGreenBufferSize(8);
fmt.setBlueBufferSize(8);
fmt.setAlphaBufferSize(8);
fmt.setSamples(8);
QSurfaceFormat::setDefaultFormat(fmt);
qmlRegisterType<Scatterplot>("PM", 1, 0, "Scatterplot");
qmlRegisterType<BarChart>("PM", 1, 0, "BarChart");
qmlRegisterType<VoronoiSplat>("PM", 1, 0, "VoronoiSplat");
qmlRegisterType<Colormap>("PM", 1, 0, "Colormap");
qmlRegisterSingletonType<Main>("PM", 1, 0, "Main", mainProvider);
QQmlApplicationEngine engine(QUrl("qrc:///main_view.qml"));
// Initialize pointers to visual components
m->cpPlot = engine.rootObjects()[0]->findChild<Scatterplot *>("cpPlot");
m->rpPlot = engine.rootObjects()[0]->findChild<Scatterplot *>("rpPlot");
m->colormap = engine.rootObjects()[0]->findChild<Colormap *>("colormap");
m->splat = engine.rootObjects()[0]->findChild<VoronoiSplat *>("splat");
m->cpBarChart = engine.rootObjects()[0]->findChild<BarChart *>("cpBarChart");
m->rpBarChart = engine.rootObjects()[0]->findChild<BarChart *>("rpBarChart");
// Keep track of the current cp (in order to save them later, if requested)
QObject::connect(m->cpPlot, SIGNAL(xyChanged(const arma::mat &)),
m, SLOT(setCP(const arma::mat &)));
QObject::connect(m->cpPlot, SIGNAL(xyInteractivelyChanged(const arma::mat &)),
m, SLOT(setCP(const arma::mat &)));
// Update projection as the cp are modified (either directly in the
// manipulationHandler object or interactively in cpPlot
ManipulationHandler manipulationHandler(X, cpIndices);
QObject::connect(m->cpPlot, SIGNAL(xyInteractivelyChanged(const arma::mat &)),
&manipulationHandler, SLOT(setCP(const arma::mat &)));
QObject::connect(&manipulationHandler, SIGNAL(cpChanged(const arma::mat &)),
m->cpPlot, SLOT(setXY(const arma::mat &)));
QObject::connect(&manipulationHandler, SIGNAL(rpChanged(const arma::mat &)),
m->rpPlot, SLOT(setXY(const arma::mat &)));
QObject::connect(&manipulationHandler, SIGNAL(rpChanged(const arma::mat &)),
m->splat, SLOT(setSites(const arma::mat &)));
// Keep both scatterplots and the splat scaled equally and relative to the
// full plot
MapScaleHandler mapScaleHandler;
QObject::connect(&mapScaleHandler, SIGNAL(scaleChanged(const LinearScale<float> &, const LinearScale<float> &)),
m->cpPlot, SLOT(setScale(const LinearScale<float> &, const LinearScale<float> &)));
QObject::connect(&mapScaleHandler, SIGNAL(scaleChanged(const LinearScale<float> &, const LinearScale<float> &)),
m->rpPlot, SLOT(setScale(const LinearScale<float> &, const LinearScale<float> &)));
QObject::connect(&mapScaleHandler, SIGNAL(scaleChanged(const LinearScale<float> &, const LinearScale<float> &)),
m->splat, SLOT(setScale(const LinearScale<float> &, const LinearScale<float> &)));
QObject::connect(&manipulationHandler, SIGNAL(mapChanged(const arma::mat &)),
&mapScaleHandler, SLOT(scaleToMap(const arma::mat &)));
QObject::connect(m->splat, SIGNAL(colorScaleChanged(const ColorScale &)),
m->colormap, SLOT(setColorScale(const ColorScale &)));
// Linking between selections
SelectionHandler cpSelectionHandler(cpIndices.n_elem);
QObject::connect(m->cpPlot, SIGNAL(selectionInteractivelyChanged(const std::vector<bool> &)),
&cpSelectionHandler, SLOT(setSelection(const std::vector<bool> &)));
QObject::connect(m->cpBarChart, SIGNAL(selectionInteractivelyChanged(const std::vector<bool> &)),
&cpSelectionHandler, SLOT(setSelection(const std::vector<bool> &)));
QObject::connect(&cpSelectionHandler, SIGNAL(selectionChanged(const std::vector<bool> &)),
m->cpPlot, SLOT(setSelection(const std::vector<bool> &)));
SelectionHandler rpSelectionHandler(X.n_rows - cpIndices.n_elem);
QObject::connect(m->rpPlot, SIGNAL(selectionInteractivelyChanged(const std::vector<bool> &)),
&rpSelectionHandler, SLOT(setSelection(const std::vector<bool> &)));
QObject::connect(m->rpBarChart, SIGNAL(selectionInteractivelyChanged(const std::vector<bool> &)),
&rpSelectionHandler, SLOT(setSelection(const std::vector<bool> &)));
QObject::connect(&rpSelectionHandler, SIGNAL(selectionChanged(const std::vector<bool> &)),
m->rpPlot, SLOT(setSelection(const std::vector<bool> &)));
// Brushing between bar chart and respective scatterplot
BrushingHandler cpBrushHandler;
QObject::connect(m->cpPlot, SIGNAL(itemInteractivelyBrushed(int)),
&cpBrushHandler, SLOT(brushItem(int)));
QObject::connect(m->cpBarChart, SIGNAL(itemInteractivelyBrushed(int)),
&cpBrushHandler, SLOT(brushItem(int)));
QObject::connect(&cpBrushHandler, SIGNAL(itemBrushed(int)),
m->cpPlot, SLOT(brushItem(int)));
QObject::connect(&cpBrushHandler, SIGNAL(itemBrushed(int)),
m->cpBarChart, SLOT(brushItem(int)));
BrushingHandler rpBrushHandler;
QObject::connect(m->rpPlot, SIGNAL(itemInteractivelyBrushed(int)),
&rpBrushHandler, SLOT(brushItem(int)));
QObject::connect(m->rpBarChart, SIGNAL(itemInteractivelyBrushed(int)),
&rpBrushHandler, SLOT(brushItem(int)));
QObject::connect(&rpBrushHandler, SIGNAL(itemBrushed(int)),
m->rpPlot, SLOT(brushItem(int)));
QObject::connect(&rpBrushHandler, SIGNAL(itemBrushed(int)),
m->rpBarChart, SLOT(brushItem(int)));
// Recompute values whenever projection changes
ProjectionObserver projectionObserver(X, cpIndices);
m->projectionObserver = &projectionObserver;
QObject::connect(&manipulationHandler, SIGNAL(mapChanged(const arma::mat &)),
m->projectionObserver, SLOT(setMap(const arma::mat &)));
QObject::connect(m->projectionObserver, SIGNAL(rpValuesChanged(const arma::vec &)),
m->rpPlot, SLOT(setColorData(const arma::vec &)));
QObject::connect(m->projectionObserver, SIGNAL(rpValuesChanged(const arma::vec &)),
m->splat, SLOT(setValues(const arma::vec &)));
QObject::connect(m->projectionObserver, SIGNAL(cpValuesChanged(const arma::vec &)),
m->cpBarChart, SLOT(setValues(const arma::vec &)));
QObject::connect(m->projectionObserver, SIGNAL(rpValuesChanged(const arma::vec &)),
m->rpBarChart, SLOT(setValues(const arma::vec &)));
// General component set up
m->cpPlot->setAcceptHoverEvents(true);
m->cpPlot->setAcceptedMouseButtons(Qt::LeftButton | Qt::MiddleButton | Qt::RightButton);
m->cpBarChart->setAcceptedMouseButtons(Qt::LeftButton);
m->rpBarChart->setAcceptedMouseButtons(Qt::LeftButton);
m->setColormapColorScale(Main::ColorScaleContinuous);
m->setCPPlotColorScale(Main::ColorScaleContinuous);
m->setRPPlotColorScale(Main::ColorScaleContinuous);
m->setSplatColorScale(Main::ColorScaleContinuous);
m->setCPBarChartColorScale(Main::ColorScaleContinuous);
m->setRPBarChartColorScale(Main::ColorScaleContinuous);
m->cpPlot->setAutoScale(false);
m->rpPlot->setAutoScale(false);
m->rpPlot->setGlyphSize(3.0f);
m->cpPlot->setColorData(labels(cpIndices), false);
// This sets the initial CP configuration, triggering all the necessary
// signals to set up the helper objects and visual components
manipulationHandler.setCP(Ys);
return app.exec();
}
|
