question about depth in spikeinterface

[alirza67]

Hi there,
I was wondering when we calculate the depth either for the channels (in get_prob()) or for clusters (in compute_unit_locations), where is the zero? Is it the electrode tip or the lowest channel on the probe or the upper channel?
when using neuropixel probes and choosing different electrode banks, does the zero shift?

[samuelgarcia]

The anwser is : it depends.
For static probes like cambridgeneurotech, the zero is decided by the compagny that provide us the probe definition.
For neuropixel, the Y zero (depth) is the middle of the fist row conact (near the tip), the X zero (width) is the middle of the left colum contact.