  In this paper, we discuss atomic processes modifying the soft X-ray spectra
in from optical depth effects like photoelectric absorption and electron
scattering suppressing the soft X-ray lines. We also show the enhancement in
soft X-ray line intensities in a photoionized environment via continuum
pumping. We quantify the suppression/enhancement by introducing a "line
modification factor ($f_{\rm mod}$)." If 0 $\leq$ $f_{\rm mod}$ $\leq$ 1, the
line is suppressed, which could be the case in both collisionally-ionized and
photoionized systems. If $f_{\rm mod}$ $\geq$ 1, the line is enhanced, which
occurs in photoionized systems. Hybrid astrophysical sources are also very
common, where the environment is partly photoionized and partly
collisionally-ionized. Such a system is V1223 Sgr, an intermediate polar
binary. We show the application of our theory by fitting the first-order
Chandra MEG spectrum of V1223 Sgr with a combination of
\textsc{Cloudy}-simulated additive cooling-flow and photoionized models. In
particular, we account for the excess flux for O~VII, O~VIII, Ne~IX, Ne~X, and
Mg~XI lines in the spectrum found in a recent study, which could not be
explained with an absorbed cooling-flow model.
