from_lt

acstools.utils_calib.from_lt(rsize, ltm, ltv)

Compute the corner location and pixel size in units of unbinned pixels.

Note

Translated from calacs/lib/fromlt.c.

Parameters:

• rsize (int) – Reference pixel size. Usually 1.

• ltm (tuple of float) – See get_lt().

• ltv (tuple of float) – See get_lt().

Returns:

• bin (tuple of int) – Pixel size in X and Y.

• corner (tuple of int) – Corner of subarray in X and Y.