matlab.io.fits.readCard

Read header record of keyword

Syntax

card = readCard(fptr,keyname)


Description

card = readCard(fptr,keyname) returns the entire 80-character header record of the keyword, with any trailing blank characters stripped off. Specify keyname as a character vector or string scalar.

This function corresponds to the fits_read_card (ffgcrd) function in the CFITSIO library C API.

Examples

import matlab.io.*
fptr = fits.openFile('tst0012.fits');
n = fits.getNumHDUs(fptr);
for j = 1:n
    fits.movAbsHDU(fptr,j);
    card = fits.readCard(fptr,'NAXIS');
    fprintf('HDU %d:  ''%s''\n', j, card);
end
fits.closeFile(fptr);