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Sortingview/Figpack: transpose templates (for sortingview) and cast to float32 to avoid serialization issues #4774

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Merged
alejoe91 merged 1 commit into from
Sep 10, 2026
+12 −4
Merged

Sortingview/Figpack: transpose templates (for sortingview) and cast to float32 to avoid serialization issues #4774

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16 changes: 12 additions & 4 deletions src/spikeinterface/widgets/unit_templates.py
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Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
from spikeinterface.core import SortingAnalyzer

from .unit_waveforms import UnitWaveformsWidget
from .base import to_attr

Expand Down Expand Up @@ -40,12 +41,17 @@ def plot_figpack(self, data_plot, **backend_kwargs):
templates_dict = {}
for u_i, unit in enumerate(unit_ids):
templates_dict[unit] = {}
template_data = dp.templates[u_i]
templates_dict[unit]["mean"] = template_data[:, unit_id_to_channel_indices[unit]]
template_data = dp.templates[u_i][:, unit_id_to_channel_indices[unit]].astype("float32")
if use_sortingview:
template_data = template_data.T
templates_dict[unit]["mean"] = template_data
if dp.do_shading:
templates_dict[unit]["shading"] = []
for shading_data in dp.templates_shading:
templates_dict[unit]["shading"].append(shading_data[u_i][:, unit_id_to_channel_indices[unit]])
shading_data_unit = shading_data[u_i][:, unit_id_to_channel_indices[unit]].astype("float32")
if use_sortingview:
shading_data_unit = shading_data_unit.T
templates_dict[unit]["shading"].append(shading_data_unit)
else:
templates_dict[unit]["shading"] = None

Expand All @@ -59,7 +65,9 @@ def plot_figpack(self, data_plot, **backend_kwargs):
for u, t in templates_dict.items()
]

channel_locations = {str(ch): dp.channel_locations[i_ch].astype(float) for i_ch, ch in enumerate(channel_ids)}
channel_locations = {
str(ch): dp.channel_locations[i_ch].astype("float32") for i_ch, ch in enumerate(channel_ids)
}
v_average_waveforms = vv_views.AverageWaveforms(average_waveforms=aw_items, channel_locations=channel_locations)

if not dp.hide_unit_selector:
Expand Down
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