The electron densities, molecular orbitals, and potentials are output
to files in a Gaussian cube format. Figure 13 shows examples
of isosurface maps visualized by XCrySDen .
These data are output in a form of the Gaussian cube. So, many software,
such as Molekel  and XCrySDen ,
can be used for the visualization.
One can find the details of output files in the cube format in
the Section 'Output files'.
(a) Isosurface map of the total electron density of a C molecule
where 0.13 was used as isovalue of total electron density.
(b) Isosurface map of the highest occupied molecular orbital (HOMO)
of a glycine molecule
where was used as isovalue of the molecular orbital.
(b) Isosurface map of the spin electron density of a molecular magnet
where was used as isovalue of the spin electron density.