Struct PointColumnChunkReader 

pub struct PointColumnChunkReader { /* private fields */ }

Streaming chunk reader for selected point fields.

This reader avoids materializing an entire cloud in memory by decoding points in fixed-size chunks and extracting only the requested fields.

Implementations

impl PointColumnChunkReader

pub fn open<P: AsRef<Path>>( path: P, fields: &[PointField], chunk_size: usize, ) -> Result<Self>

Open a chunk reader for path with requested fields.

Errors

Returns an error when the source cannot be opened, decoded, or when fields is empty or chunk_size is zero.

pub fn next_chunk(&mut self) -> Result<Option<Vec<Vec<f64>>>>

Read the next chunk of columns.

Returns Ok(None) when EOF is reached.

Errors

Returns an error if point decoding fails.