ReconstructionStatsWidget.cpp

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// ----------------------------------------------------------------------------
// -                        CloudViewer: www.cloudViewer.org                  -
// ----------------------------------------------------------------------------
// Copyright (c) 2018-2024 www.cloudViewer.org
// SPDX-License-Identifier: MIT
// ----------------------------------------------------------------------------
 
#include "ReconstructionStatsWidget.h"
 
#include "base/reconstruction.h"
 
namespace cloudViewer {
 
ReconstructionStatsWidget::ReconstructionStatsWidget(QWidget* parent)
    : QWidget(parent) {
    setWindowFlags(Qt::Window);
    resize(parent->width() - 20, parent->height() - 20);
    setWindowTitle("Reconstruction statistics");
 
    stats_table_ = new QTableWidget(this);
    stats_table_->setColumnCount(2);
    stats_table_->horizontalHeader()->setVisible(false);
    stats_table_->verticalHeader()->setVisible(false);
    stats_table_->horizontalHeader()->setSectionResizeMode(
            QHeaderView::Stretch);
 
    QGridLayout* grid = new QGridLayout(this);
    grid->addWidget(stats_table_);
}
 
void ReconstructionStatsWidget::Show(
        const colmap::Reconstruction& reconstruction) {
    QString stats;
 
    stats_table_->clearContents();
    stats_table_->setRowCount(0);
 
    AddStatistic("Cameras", QString::number(reconstruction.NumCameras()));
    AddStatistic("Images", QString::number(reconstruction.NumImages()));
    AddStatistic("Registered images",
                 QString::number(reconstruction.NumRegImages()));
    AddStatistic("Points", QString::number(reconstruction.NumPoints3D()));
    AddStatistic("Observations",
                 QString::number(reconstruction.ComputeNumObservations()));
    AddStatistic("Mean track length",
                 QString::number(reconstruction.ComputeMeanTrackLength()));
    AddStatistic("Mean observations per image",
                 QString::number(
                         reconstruction.ComputeMeanObservationsPerRegImage()));
    AddStatistic(
            "Mean reprojection error",
            QString::number(reconstruction.ComputeMeanReprojectionError()));
}
 
void ReconstructionStatsWidget::AddStatistic(const QString& header,
                                             const QString& content) {
    const int row = stats_table_->rowCount();
    stats_table_->insertRow(row);
    stats_table_->setItem(row, 0, new QTableWidgetItem(header));
    stats_table_->setItem(row, 1, new QTableWidgetItem(content));
}
 
}  // namespace cloudViewer