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#include <cmath>
#include <iostream>
#include <numeric>
#include <random>
#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 const int RNG_SEED = 1;
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));
arma::uvec cpIndices(numCPs);
std::iota(cpIndices.begin(), cpIndices.end(), 0);
std::shuffle(cpIndices.begin(),
cpIndices.end(),
std::default_random_engine(RNG_SEED));
return cpIndices;
}
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 (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(cpValuesChanged(const arma::vec &)),
m->cpPlot, 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 &)));
// Recompute values whenever selection changes
QObject::connect(&cpSelectionHandler, SIGNAL(selectionChanged(const std::vector<bool> &)),
&projectionObserver, SLOT(setCPSelection(const std::vector<bool> &)));
QObject::connect(&rpSelectionHandler, SIGNAL(selectionChanged(const std::vector<bool> &)),
&projectionObserver, SLOT(setRPSelection(const std::vector<bool> &)));
// General component set up
m->cpPlot->setAcceptHoverEvents(true);
m->cpPlot->setAcceptedMouseButtons(Qt::LeftButton | Qt::MiddleButton | Qt::RightButton);
m->cpBarChart->setAcceptedMouseButtons(Qt::LeftButton | Qt::RightButton);
m->rpBarChart->setAcceptedMouseButtons(Qt::LeftButton | Qt::RightButton);
m->setColormapColorScale(Main::ColorScaleRainbow);
m->setCPPlotColorScale(Main::ColorScaleRainbow);
m->setRPPlotColorScale(Main::ColorScaleRainbow);
m->setSplatColorScale(Main::ColorScaleRainbow);
m->setCPBarChartColorScale(Main::ColorScaleRainbow);
m->setRPBarChartColorScale(Main::ColorScaleRainbow);
m->cpPlot->setAutoScale(false);
m->rpPlot->setAutoScale(false);
m->rpPlot->setGlyphSize(3.0f);
// 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();
}
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