pynaviz.base_plot.PlotTsd#

class pynaviz.base_plot.PlotTsd(data: Tsd, index: int | None = None, parent: Any | None = None)[source]#

Bases: _BasePlot

A time series plot for nap.Tsd objects using GPU-accelerated rendering.

This class renders a continuous 1D time series as a line plot and manages user interaction through a SpanController. It supports optional synchronization across multiple plots and rendering via WebGPU.

Parameters:

  • data (nap.Tsd) – The time series data to be visualized (timestamps + values).

  • index (Optional[int], default=None) – Controller index used for synchronized interaction (e.g., panning across multiple plots).

  • parent (Optional[Any], default=None) – Optional parent widget (e.g., in a Qt context).

controller#

Manages viewport updates, syncing, and linked plot interactions.

Type:

SpanController

line#

The main line plot showing the time series.

Type:

gfx.Line

__init__(data: Tsd, index: int | None = None, parent: Any | None = None) → None[source]#

Methods

__init__(data[, index, parent])

add_interval_sets(epochs[, colors, alpha, ...])

animate()

Updates the positions of rulers and reference lines based on the current world coordinate bounds and triggers a re-render of the scene.

close()

color_by(metadata_name[, cmap_name, vmin, vmax])

Applies color mapping to plot elements based on a metadata field.

group_by(metadata_name[, spacing])

show()

To show the canvas in case of GLFW context used

sort_by(metadata_name[, order])

Attributes

cmap

data

add_interval_sets(epochs: Iterable[IntervalSet] | IntervalSet, colors: Iterable | str | Color | None = None, alpha: Iterable[float] | float | None = None, labels: Iterable[str] | str | None = None)#
animate()#

Updates the positions of rulers and reference lines based on the current world coordinate bounds and triggers a re-render of the scene.

This method performs the following: - Computes the visible world coordinate bounds. - Updates the horizontal (x) and vertical (y) rulers accordingly. - Repositions the center time reference line in the scene. - Re-renders the scene using the current camera and canvas settings.

Notes

This method should be called whenever the visible region of the plot changes (e.g., after zooming, panning, or resizing the canvas).

close()#
property cmap#
color_by(metadata_name: str, cmap_name: str = 'viridis', vmin: float = 0.0, vmax: float = 100.0) → None#

Applies color mapping to plot elements based on a metadata field.

This method retrieves values from the given metadata field and maps them to colors using the specified colormap and value range. The mapped colors are applied to each plot element’s material. If color mappings are still being computed in a background thread, the function retries after a short delay.

Parameters:

  • metadata_name (str) – Name of the metadata field used for color mapping.

  • cmap_name (str, default="viridis") – Name of the colormap to apply (e.g., “jet”, “plasma”, “viridis”).

  • vmin (float, default=0.0) – Minimum value for the colormap normalization.

  • vmax (float, default=100.0) – Maximum value for the colormap normalization.

Notes

  • If the color_mapping_thread is still running, the method defers execution by 25 milliseconds and retries automatically.

  • If no appropriate color map is found for the metadata, a warning is issued.

  • Requires self.data to support get_info() for metadata retrieval.

  • Triggers a canvas redraw by calling self.animate() after updating colors.

Warning

UserWarning

Raised when the specified metadata field has no associated color mapping.

property data#
group_by(metadata_name: str, spacing: Optional = None)[source]#
show()#

To show the canvas in case of GLFW context used

sort_by(metadata_name: str, order: str | None = 'ascending')[source]#