Function from_struct_array 

pub fn from_struct_array(array: &StructArray) -> Result<CmdVel, ArrowError>

Decode a single CmdVel sample from a StructArray whose fields match schema. Returns the first row; errors on field mismatch or empty input. Symmetric to to_record_batch.

Example

use arrow::array::StructArray;
use isaac_sim_arrow::cmd_vel::{CmdVel, to_record_batch, from_struct_array};
let twist = CmdVel { linear_x: 1.0, angular_z: -0.5, ..CmdVel::default() };
let batch = to_record_batch(&twist).unwrap();
let array = StructArray::from(batch);
let decoded = from_struct_array(&array).unwrap();
assert_eq!(decoded, twist);