Trait las::reader::Read

pub trait Read {
    // Required methods
    fn header(&self) -> &Header;
    fn read(&mut self) -> Option<Result<Point>>;
    fn read_n(&mut self, n: u64) -> Result<Vec<Point>>;
    fn read_n_into(&mut self, n: u64, points: &mut Vec<Point>) -> Result<u64>;
    fn read_all_points(&mut self, points: &mut Vec<Point>) -> Result<u64>;
    fn seek(&mut self, position: u64) -> Result<()>;
    fn points(&mut self) -> PointIterator<'_> ;
}

A trait for objects which read LAS data.

Required Methods

fn header(&self) -> &Header

Returns a reference to this reader’s header.

Examples

use las::{Read, Reader};
let reader = Reader::from_path("tests/data/autzen.las").unwrap();
let header = reader.header();

fn read(&mut self) -> Option<Result<Point>>

Reads a point.

Examples

let mut reader = Reader::from_path("tests/data/autzen.las").unwrap();
let point = reader.read().unwrap().unwrap();

fn read_n(&mut self, n: u64) -> Result<Vec<Point>>

Reads n points.

fn read_n_into(&mut self, n: u64, points: &mut Vec<Point>) -> Result<u64>

Reads n points into the vec

fn read_all_points(&mut self, points: &mut Vec<Point>) -> Result<u64>

Reads all points left into the vec

fn seek(&mut self, position: u64) -> Result<()>

Seeks to the given point number, zero-indexed.

Note that seeking on compressed (LAZ) data can be expensive as the reader will have to seek to the closest chunk start and decompress all points up until the point seeked to.

Examples

use las::{Read, Reader};
let mut reader = Reader::from_path("tests/data/autzen.las").unwrap();
reader.seek(1).unwrap(); // <- seeks to the second point
let the_second_point = reader.read().unwrap().unwrap();

fn points(&mut self) -> PointIterator<'_>

Returns an iterator over this reader’s points.

Examples

let mut reader = Reader::from_path("tests/data/autzen.las").unwrap();
let points = reader.points().collect::<Result<Vec<_>, _>>().unwrap();

Implementors

impl<'a> Read for Reader<'a>