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Calculate neuron volume from CAVE L2 cache

Source: R/volumes.R
banc_neuron_volume.Rd

Computes the total volume (in nm³) for one or more BANC neurons by summing pre-computed size_nm3 values from the CAVE L2 cache. This is much faster than downloading full meshes.

Usage

banc_neuron_volume(ids, OmitFailures = TRUE, ...)

Arguments

ids

A vector of one or more neuron root IDs.

OmitFailures

Logical; if TRUE, neurons that fail are returned as NA rather than raising an error (default TRUE).

...

Additional arguments (currently unused).

Value

A data.frame with columns:

root_id

Character root ID

volume_nm3

Total volume in cubic nanometers

Details

For each neuron, banc_neuron_volume retrieves all Level 2 chunk IDs via the chunkedgraph, then queries the L2 cache for the size_nm3 attribute of each chunk. The total neuron volume is the sum across all chunks.

The L2 cache stores pre-computed statistics that are updated after every CAVE edit, so results reflect the current segmentation state.

See also

banc_read_l2skel for L2 skeleton data

Examples

if (FALSE) { # \dontrun{
# Single neuron
banc_neuron_volume("720575941478275714")

# Multiple neurons
ids <- c("720575941478275714", "720575941512951014")
banc_neuron_volume(ids)
} # }