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FrequencySpectrumModel

Namespace: DISPLIB  ·  Library: Display Library

#include <disp/frequencyspectrummodel.h>

class DISPLIB::FrequencySpectrumModel

QAbstractTableModel storing per-channel FFT magnitudes for SpectrumView.

Maintains an Eigen::MatrixXd of channels × frequency bins; addData() appends or averages new FFT frames and emits dataChanged so the view repaints the affected rows.

Inheritance​

Public Methods​

FrequencySpectrumModel(parent)​

Constructs an real-time multi sample array table model for the given parent.

Parameters:

  • parent : *QObject ** parent of the table model.

rowCount(parent)​

Returns the number of rows under the given parent.

When the parent is valid it means that rowCount is returning the number of children of parent.

Parameters:

  • parent : const QModelIndex & not used.

Returns:

  • int — number of rows.

columnCount(parent)​

Returns the number of columns for the children of the given parent.

Parameters:

  • parent : const QModelIndex & not used.

Returns:

  • int — number of columns.

data(index, role)​

Returns the data stored under the given role for the item referred to by the index.

Parameters:

  • index : const QModelIndex & determines item location.

  • role : int role to return.

Returns:

  • QVariant — accessed data.

headerData(section, orientation, role)​

Returns the data for the given role and section in the header with the specified orientation.

Parameters:

  • section : int For horizontal headers, the section number corresponds to the column number. Similarly, for vertical headers, the section number corresponds to the row number.

  • orientation : Qt::Orientation Qt::Horizontal or Qt::Vertical.

  • role : int role to show.

Returns:

  • QVariant — accessed eader data.

setInfo(info)​

Sets corresponding fiff info.

Parameters:

  • info : QSharedPointer<FiffInfo> & The corresponding fiff information object.

setScaleType(ScaleType)​

Sets Scale type.

Parameters:

  • ScaleType : qint8 The corresponding scale type.

addData(data)​

Adds the frequency estimation.

Parameters:

  • data : const Eigen::MatrixXd & the frequency estimation.

getInfo()​

Returns the fiff info.

Returns:

  • QSharedPointer<FiffInfo> — the fiff info.

getFreqScale()​

Returns the frequency scale of the x axis.

Returns:

  • Eigen::RowVectorXd — the frequency scale of the x axis.

getFreqScaleBound()​

Returns the frequency scale scaled to boundaries of the x axis.

Returns:

  • Eigen::RowVectorXd — the frequency scale of the x axis.

getNumStems()​

Returns the number of stems.

Returns:

  • qint32 — the number of stems.

getIdxSelMap()​

Returns a map which conatins the channel idx and its corresponding selection status.

Returns:

  • const QMap< qint32, qint32 > & — the channel idx to selection status.

selectRows(selection)​

Selects the given list of channel indeces and unselect all other channels.

Parameters:

  • selection : const QList< qint32 > & channel index list to select.

resetSelection()​

Resets the current selection (selects all channels).

toggleFreeze(index)​

Toggle freeze for all channels when a channel is double clicked.

Parameters:

  • index : const QModelIndex & of the channel which has been double clicked.

isFreezed()​

Returns current freezing status.

Returns:

  • bool — the current freezing status.

setBoundaries(fLowerFrqBound, fUpperFrqBound)​

Set plotting boundaries.

Parameters:

  • fLowerFrqBound : float Lower frequency boudnary.

  • fUpperFrqBound : float Upper frequency boudnary.

getLowerFrqBound()​

Returns the lower frequency boundary.

Returns:

  • qint32 — the lower frequency boundary.

getUpperFrqBound()​

Returns the upper frequency boundary.

Returns:

  • qint32 — the upper frequency boundary.

Authors of this file​