pynaviz.base_plot.PlotTsd#

class pynaviz.base_plot.PlotTsd(data, index=None, parent=None)[source]#

Bases: _BasePlot

Visualization for 1-dimensional pynapple time series object (nap.Tsd)

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, index=None, parent=None)[source]#
Parameters:

  • data (Tsd)

  • index (int | None)

  • parent (Any | None)

Return type:

None

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)

remove_interval_set(label)

Remove an interval set from the plot.

show()

To show the canvas in case of GLFW context used

sort_by(metadata_name[, mode])

update_interval_set(name, colors, alpha)

Update the color and transparency of an existing interval set.

Attributes

cmap

data

add_interval_sets(epochs, colors=None, alpha=None, labels=None)#
Parameters:
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, cmap_name='viridis', vmin=0.0, vmax=100.0)#

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.

Return type:

None

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)#
Parameters:

metadata_name (str)

remove_interval_set(label)#

Remove an interval set from the plot.

Parameters:

label (str) – The label of the interval set to be removed.

Return type:

None

show()#

To show the canvas in case of GLFW context used

sort_by(metadata_name, mode='ascending')#
Parameters:

  • metadata_name (str)

  • mode (str | None)

update_interval_set(name, colors, alpha)#

Update the color and transparency of an existing interval set.

Parameters:

  • name (str) – The label of the interval set to be updated.

  • colors (str | Color) – The new color of the interval set.

  • alpha (float) – The new transparency level, between 0 and 1.

Return type:

None