wonambi.widgets.spectrum module
Widget to show power spectrum.
- class wonambi.widgets.spectrum.Spectrum(parent)[source]
Bases:
QWidgetPlot the power spectrum for a specified channel.
- parent
the main window.
- Type:
instance of QMainWindow
- x_limit
2 values specifying the limit on x-axis
- Type:
tuple or list
- y_limit
2 values specifying the limit on y-axis
- Type:
tuple or list
- log
log-transform the data or not
- Type:
bool
- idx_chan
the element with the list of channel names.
- Type:
instance of QComboBox
- idx_x_min
value with min x value
- Type:
instance of QLineEdit
- idx_x_max
value with max x value
- Type:
instance of QLineEdit
- idx_y_min
value with min y value
- Type:
instance of QLineEdit
- idx_y_max
value with max y value
- Type:
instance of QLineEdit
- idx_log
widget that defines if log should be used or not
- Type:
instance of QCheckBox
- idx_fig
the view with the power spectrum
- Type:
instance of QGraphicsView
- scene
the scene with GraphicsItems
- Type:
instance of QGraphicsScene
Notes
If data contains NaN, it doesn’t create any spectrum (feature or bug?).
- add_grid()[source]
Add axis and ticks to figure.
Notes
I know that visvis and pyqtgraphs can do this in much simpler way, but those packages create too large a padding around the figure and this is pretty fast.
- display(data)[source]
Make graphicsitem for spectrum figure.
- Parameters:
data (ndarray) – 1D vector containing the data only
the (This function can be called by self.display_window (which reads) –
in (data for the selected channel) or by the mouse-events functions) –
selection). (traces (which read chunks of data from the user-made) –
- display_window()[source]
Read the channel name from QComboBox and plot its spectrum.
This function is necessary it reads the data and it sends it to self.display. When the user selects a smaller chunk of data from the visible traces, then we don’t need to call this function.