SaveProjectionsAssistant Class Reference

Assistant class which save all projections of IndensityDataItem into ASCII file. More...

Classes
struct	Projection
struct	ProjectionsData

Public Member Functions
	SaveProjectionsAssistant ()
	~SaveProjectionsAssistant ()
void	saveProjections (QWidget *parent, IntensityDataItem *intensityItem)
	Calls file open dialog and writes projection data as ASCII. More...

Private Member Functions
QString	projectionFileHeader (ProjectionsData &projectionsData)
	Returns projections header. More...
QVector< SessionItem * >	projectionItems (const QString &projectionsType, IntensityDataItem *intensityItem)
	Returns vector of ProjectionItems sorted according to axis value. More...
ProjectionsData	projectionsData (const QString &projectionsType, IntensityDataItem *intensityItem)
	Returns projections data for all projections of given type (horizontal, vertical). More...
QString	projectionsToString (const QString &projectionsType, IntensityDataItem *intensityItem)
	Generates multi-line string with projections data of given type (horizontal, vertical). More...

Private Attributes
std::unique_ptr< Histogram2D >	m_hist2d

Detailed Description

Assistant class which save all projections of IndensityDataItem into ASCII file.

Definition at line 29 of file SaveProjectionsAssistant.h.

Constructor & Destructor Documentation

SaveProjectionsAssistant()

SaveProjectionsAssistant::SaveProjectionsAssistant ( )

default

~SaveProjectionsAssistant()

SaveProjectionsAssistant::~SaveProjectionsAssistant ( )

default

Member Function Documentation

projectionFileHeader()

QString SaveProjectionsAssistant::projectionFileHeader ( ProjectionsData &  projectionsData )

private

Returns projections header.

For projections along x it will be "# x y=6.0194 y=33.5922 y=61.9417"

Definition at line 165 of file SaveProjectionsAssistant.cpp.

{
    QString xcol, ycol;
 
    projectionsData.is_horizontal ? xcol = "# x" : xcol = "# y";
    projectionsData.is_horizontal ? ycol = " y=" : ycol = " x=";
 
    QString result;
    result.append(QString("%1").arg(xcol, -bin_centers_colwidth));
 
    for (auto& data : projectionsData.projections)
        result.append(QString("%1%2").arg(ycol).arg(data.axis_value,
                                                    -(bin_values_colwidth - ycol.size()), 'f', 4));
    result.append("\n");
 
    return result;
}

References SaveProjectionsAssistant::ProjectionsData::is_horizontal, SaveProjectionsAssistant::ProjectionsData::projections, and projectionsData().

Referenced by projectionsToString().

Here is the call graph for this function:

projectionItems()

QVector< SessionItem * > SaveProjectionsAssistant::projectionItems ( const QString &  projectionsType, IntensityDataItem *  intensityItem  )

private

Returns vector of ProjectionItems sorted according to axis value.

Definition at line 147 of file SaveProjectionsAssistant.cpp.

{
    auto result = intensityItem->projectionContainerItem()->getChildrenOfType(projectionsType);
    std::sort(result.begin(), result.end(), [=](SessionItem* item1, SessionItem* item2) {
        QString propertyName = HorizontalLineItem::P_POSY;
        if (projectionsType != "HorizontalLineMask")
            propertyName = VerticalLineItem::P_POSX;
 
        return item1->getItemValue(propertyName).toDouble()
               < item2->getItemValue(propertyName).toDouble();
    });
    return result;
}

References SessionItem::getChildrenOfType(), and IntensityDataItem::projectionContainerItem().

Referenced by projectionsData().

Here is the call graph for this function:

projectionsData()

SaveProjectionsAssistant::ProjectionsData SaveProjectionsAssistant::projectionsData ( const QString &  projectionsType, IntensityDataItem *  intensityItem  )

private

Returns projections data for all projections of given type (horizontal, vertical).

Definition at line 109 of file SaveProjectionsAssistant.cpp.

{
    ProjectionsData result;
    projectionsType == "VerticalLineMask" ? result.is_horizontal = false
                                          : result.is_horizontal = true;
 
    for (auto item : projectionItems(projectionsType, intensityItem)) {
        std::unique_ptr<Histogram1D> hist;
        SaveProjectionsAssistant::Projection data;
 
        if (item->modelType() == "HorizontalLineMask") {
            data.axis_value = item->getItemValue(HorizontalLineItem::P_POSY).toDouble();
            hist.reset(m_hist2d->projectionX(data.axis_value));
        } else {
            data.axis_value = item->getItemValue(VerticalLineItem::P_POSX).toDouble();
            hist.reset(m_hist2d->projectionY(data.axis_value));
        }
 
#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
        auto values = hist->binValues();
        auto centers = hist->binCenters();
        data.bin_values = QVector<double>(values.begin(), values.end());
        if (result.bin_centers.isEmpty())
            result.bin_centers = QVector<double>(centers.begin(), centers.end());
#else
        data.bin_values = QVector<double>::fromStdVector(hist->binValues());
        if (result.bin_centers.isEmpty())
            result.bin_centers = QVector<double>::fromStdVector(hist->binCenters());
#endif
 
        result.projections.push_back(data);
    }
    return result;
}

References SaveProjectionsAssistant::Projection::axis_value, SaveProjectionsAssistant::ProjectionsData::bin_centers, SaveProjectionsAssistant::Projection::bin_values, GUIHelpers::fromStdVector(), SaveProjectionsAssistant::ProjectionsData::is_horizontal, m_hist2d, VerticalLineItem::P_POSX, HorizontalLineItem::P_POSY, projectionItems(), and SaveProjectionsAssistant::ProjectionsData::projections.

Referenced by projectionFileHeader(), and projectionsToString().

Here is the call graph for this function:

projectionsToString()

QString SaveProjectionsAssistant::projectionsToString ( const QString &  projectionsType, IntensityDataItem *  intensityItem  )

private

Generates multi-line string with projections data of given type (horizontal, vertical).

Definition at line 81 of file SaveProjectionsAssistant.cpp.

{
    QString result;
    QTextStream out(&result);
 
    auto projData = projectionsData(projectionsType, intensityItem);
 
    if (projData.projections.isEmpty())
        return result;
 
    out << projectionFileHeader(projData);
 
    auto bin_centers = projData.bin_centers;
 
    for (int i_point = 0; i_point < bin_centers.size(); ++i_point) {
        out << to_double_str(bin_centers[i_point]) << " ";
        for (auto& data : projData.projections) {
            out << to_scientific_str(data.bin_values[i_point]);
        }
        out << "\n";
    }
    return result;
}

References projectionFileHeader(), and projectionsData().

Referenced by saveProjections().

Here is the call graph for this function:

saveProjections()

void SaveProjectionsAssistant::saveProjections	(	QWidget *	parent,
		IntensityDataItem *	intensityItem
	)

Calls file open dialog and writes projection data as ASCII.

Definition at line 49 of file SaveProjectionsAssistant.cpp.

{
    ASSERT(intensityItem);
 
    QString defaultName = ProjectUtils::userExportDir() + "/untitled.txt";
    QString fileName = QFileDialog::getSaveFileName(parent, "Save projections data", defaultName);
 
    if (fileName.isEmpty())
        return;
 
    QFile file(fileName);
    if (!file.open(QIODevice::WriteOnly | QIODevice::Text))
        throw GUIHelpers::Error("TestProjectUtils::createTestFile() -> Error. "
                                "Can't create file");
 
    m_hist2d = std::make_unique<Histogram2D>(*intensityItem->getOutputData());
 
    QTextStream out(&file);
 
    out << "# Projections along x-axis (horizontal projections) \n";
    out << projectionsToString("HorizontalLineMask", intensityItem);
    out << "\n";
 
    out << "# Projections along y-axis (vertical projections) \n";
    out << projectionsToString("VerticalLineMask", intensityItem);
    out << "\n";
 
    file.close();
}

References ASSERT, DataItem::getOutputData(), m_hist2d, projectionsToString(), and ProjectUtils::userExportDir().

Referenced by ProjectionsEditorActions::onSaveAction().

Here is the call graph for this function:

Member Data Documentation

m_hist2d

std::unique_ptr<Histogram2D> SaveProjectionsAssistant::m_hist2d

private

Definition at line 50 of file SaveProjectionsAssistant.h.

Referenced by projectionsData(), and saveProjections().

---

The documentation for this class was generated from the following files:

• /home/www/ba/GUI/coregui/Views/IntensityDataWidgets/SaveProjectionsAssistant.h
• /home/www/ba/GUI/coregui/Views/IntensityDataWidgets/SaveProjectionsAssistant.cpp