This crate implements a fits image parser

Examples

Basic usage:

use std::fs::File;
use std::io::BufReader;

use fitsrs::{hdu::data::DataOwned, fits::Fits};

let f = File::open("misc/FOCx38i0101t_c0f.fits").unwrap();
let Fits { hdu } = Fits::from_reader(BufReader::new(f)).unwrap();

// Get the header part of the HDU
let header = &hdu.header;
// Retrieve some card values
let naxis1 = header.get_axis_size(1).unwrap();
let naxis2 = header.get_axis_size(2).unwrap();

// Get the data part iterator
match hdu.data {
// Knowing the BITPIX keyword you are able to know the correct data type
DataOwned::F32(it) => {
// Consume it when you want
let data = it.collect::<Vec<_>>();
assert_eq!(data.len(), naxis1 * naxis2);
},
_ => unreachable!(),
}