stcloadingworker.cpp

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//=============================================================================================================
 
//=============================================================================================================
// INCLUDES
//=============================================================================================================
 
#include "stcloadingworker.h"
#include "renderable/brainsurface.h"
 
#include "helpers/interpolation.h"
#include "helpers/geometryinfo.h"
 
#include <QFile>
#include <QDebug>
 
//=============================================================================================================
// DEFINE MEMBER METHODS
//=============================================================================================================
 
StcLoadingWorker::StcLoadingWorker(const QString &lhPath,
                                   const QString &rhPath,
                                   BrainSurface *lhSurface,
                                   BrainSurface *rhSurface,
                                   double cancelDist,
                                   QObject *parent)
    : QObject(parent)
    , m_lhPath(lhPath)
    , m_rhPath(rhPath)
    , m_lhSurface(lhSurface)
    , m_rhSurface(rhSurface)
    , m_cancelDist(cancelDist)
{
}
 
//=============================================================================================================
 
StcLoadingWorker::~StcLoadingWorker()
{
}
 
//=============================================================================================================
 
void StcLoadingWorker::process()
{
    emit progress(0, "Loading STC files...");
 
    // Load LH STC file
    if (!m_lhPath.isEmpty()) {
        QFile file(m_lhPath);
        MNELIB::MNESourceEstimate stc;
        if (MNELIB::MNESourceEstimate::read(file, stc)) {
            m_stcLh = stc;
            m_hasLh = true;
            qDebug() << "StcLoadingWorker: Loaded LH with" << stc.data.rows() << "vertices,"
                     << stc.data.cols() << "time points";
        } else {
            emit error(QString("Failed to read LH STC file: %1").arg(m_lhPath));
        }
    }
 
    emit progress(5, "Loading RH STC file...");
 
    // Load RH STC file
    if (!m_rhPath.isEmpty()) {
        QFile file(m_rhPath);
        MNELIB::MNESourceEstimate stc;
        if (MNELIB::MNESourceEstimate::read(file, stc)) {
            m_stcRh = stc;
            m_hasRh = true;
            qDebug() << "StcLoadingWorker: Loaded RH with" << stc.data.rows() << "vertices,"
                     << stc.data.cols() << "time points";
        } else {
            emit error(QString("Failed to read RH STC file: %1").arg(m_rhPath));
        }
    }
 
    if (!m_hasLh && !m_hasRh) {
        emit error("No STC data could be loaded.");
        emit finished(false);
        return;
    }
 
    // Compute LH interpolation matrix
    if (m_hasLh && m_lhSurface) {
        emit progress(10, "Computing LH interpolation matrix...");
        
        Eigen::MatrixX3f matVertices = m_lhSurface->verticesAsMatrix();
        std::vector<Eigen::VectorXi> vecNeighbors = m_lhSurface->computeNeighbors();
 
        Eigen::VectorXi vecSourceVertices = m_stcLh.vertices;
 
        qDebug() << "StcLoadingWorker: LH surface has" << matVertices.rows() << "vertices,"
                 << vecSourceVertices.size() << "sources";
 
        if (vecSourceVertices.size() > 0) {
            // Compute distance table (SCDC - geodesic distance)
            emit progress(15, "Computing LH geodesic distances (SCDC)...");
            QSharedPointer<Eigen::MatrixXd> distTable = DISP3DRHILIB::GeometryInfo::scdc(
                matVertices,
                vecNeighbors,
                vecSourceVertices,
                m_cancelDist
            );
 
            if (distTable && distTable->rows() > 0) {
                emit progress(35, "Creating LH interpolation matrix...");
                m_interpMatLh = DISP3DRHILIB::Interpolation::createInterpolationMat(
                    vecSourceVertices,
                    distTable,
                    DISP3DRHILIB::Interpolation::cubic,
                    m_cancelDist
                );
 
                if (m_interpMatLh && m_interpMatLh->rows() > 0) {
                    qDebug() << "StcLoadingWorker: LH interpolation matrix created:"
                             << m_interpMatLh->rows() << "x" << m_interpMatLh->cols();
                }
            }
        }
    }
 
    // Compute RH interpolation matrix
    if (m_hasRh && m_rhSurface) {
        emit progress(50, "Computing RH interpolation matrix...");
 
        Eigen::MatrixX3f matVertices = m_rhSurface->verticesAsMatrix();
        std::vector<Eigen::VectorXi> vecNeighbors = m_rhSurface->computeNeighbors();
 
        Eigen::VectorXi vecSourceVertices = m_stcRh.vertices;
 
        qDebug() << "StcLoadingWorker: RH surface has" << matVertices.rows() << "vertices,"
                 << vecSourceVertices.size() << "sources";
 
        if (vecSourceVertices.size() > 0) {
            // Compute distance table (SCDC - geodesic distance)
            emit progress(55, "Computing RH geodesic distances (SCDC)...");
            QSharedPointer<Eigen::MatrixXd> distTable = DISP3DRHILIB::GeometryInfo::scdc(
                matVertices,
                vecNeighbors,
                vecSourceVertices,
                m_cancelDist
            );
 
            if (distTable && distTable->rows() > 0) {
                emit progress(75, "Creating RH interpolation matrix...");
                m_interpMatRh = DISP3DRHILIB::Interpolation::createInterpolationMat(
                    vecSourceVertices,
                    distTable,
                    DISP3DRHILIB::Interpolation::cubic,
                    m_cancelDist
                );
 
                if (m_interpMatRh && m_interpMatRh->rows() > 0) {
                    qDebug() << "StcLoadingWorker: RH interpolation matrix created:"
                             << m_interpMatRh->rows() << "x" << m_interpMatRh->cols();
                }
            }
        }
    }
 
    emit progress(95, "Finalizing...");
    emit progress(100, "Complete");
    emit finished(true);
}