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visualdynamics.gui.lines_panel

lines_panel

The Convert to PSD/CPSD pane beside the plot, for a specification written at breakpoints: the frequency spacing of the lines to read it onto, what that gives, a preview, and the button that converts it.

A density to drive or predict with is read line by line, so a specification at breakpoints is read onto evenly spaced lines when it is converted (Project.convert_to_psd, with the sheet's own reading, core.author.read_onto_lines). The spacing opens at the one its sheet remembers, and blank when there is none: it is not guessed. The plot previews the result; Generate converts it (principle 13: select, see, set, apply). A specification already on lines converts with no pane.

Classes:

Name Description
LinesPanel

The spacing, emitted in Hz when it changes and when Generate is

Classes

LinesPanel 

LinesPanel(parent: QWidget | None = None)

Bases: QWidget

The spacing, emitted in Hz when it changes and when Generate is pressed; 0 means none set.

Methods:

Name Description
spacing

The spacing set, in Hz; 0 when none is.
show_settings

Put the title and the spacing up without emitting them.
show_reading

The rows under the setting, the note under them, and whether
Source code in src/visualdynamics/gui/lines_panel.py 
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def __init__(self, parent: QWidget | None = None) -> None:
    super().__init__(parent)
    self._loading = False
    self.title: QLabel = QLabel('Convert to PSD')
    grid = panel_grid(self, self.title)
    self.spacing_box: DoubleSpinBox = DoubleSpinBox()
    self.spacing_box.setDecimals(4)
    self.spacing_box.setRange(0.0, 1e6)
    self.spacing_box.setSuffix(' Hz')
    # blank until set: the minimum stands for no spacing
    self.spacing_box.setSpecialValueText('—')
    self.spacing_box.setToolTip(
        'The spacing of the frequency lines to read the breakpoints '
        "onto, as a controller's lines: multiples of it from 0 Hz")
    self.spacing_box.valueChanged.connect(self._edited)
    add_settings(grid, [('Spacing', self.spacing_box)])
    commit_on_enter(self.spacing_box)
    add_rule(grid, 2)
    self._derived = add_derived(grid, [('breakpoints', 'Breakpoints'),
                                       ('range', 'Range'),
                                       ('lines', 'Lines')], 3)
    self.note: QLabel = QLabel('')
    self.note.setWordWrap(True)
    grid.addWidget(self.note, 6, 0, 1, 2)
    self.apply_button: QPushButton = QPushButton('Generate')
    self.apply_button.setToolTip(
        'Convert the specification to a density on these lines, under '
        'its own name; its warning and abort limits are left out')
    self.apply_button.clicked.connect(
        lambda: self.apply_asked.emit(self.spacing()))
    grid.addWidget(self.apply_button, 7, 0, 1, 2)
    grid.setRowStretch(8, 1)
Methods:
spacing 
spacing() -> float

The spacing set, in Hz; 0 when none is.

Source code in src/visualdynamics/gui/lines_panel.py 
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def spacing(self) -> float:
    """The spacing set, in Hz; 0 when none is."""
    return float(self.spacing_box.value())
show_settings 
show_settings(title: str, spacing: float | None) -> None

Put the title and the spacing up without emitting them.

Source code in src/visualdynamics/gui/lines_panel.py 
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def show_settings(self, title: str, spacing: float | None) -> None:
    """Put the title and the spacing up without emitting them."""
    self._loading = True
    try:
        self.title.setText(title)
        self.spacing_box.setValue(spacing or 0.0)
    finally:
        self._loading = False
show_reading 
show_reading(*, breakpoints: str = '—', span: str = '—', lines: str = '—', note: str = '', ready: bool = True) -> None

The rows under the setting, the note under them, and whether Generate can be pressed.

Source code in src/visualdynamics/gui/lines_panel.py 
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def show_reading(self, *, breakpoints: str = '—', span: str = '—',
                 lines: str = '—', note: str = '',
                 ready: bool = True) -> None:
    """The rows under the setting, the note under them, and whether
    Generate can be pressed."""
    for key, value in (('breakpoints', breakpoints), ('range', span),
                       ('lines', lines)):
        self._derived[key][1].setText(value)
    self.note.setText(note)
    self.note.setVisible(bool(note))
    self.apply_button.setEnabled(ready)

Functions: