## 10.3 The `energylevel` module

`show`()
  Displays the energy level diagram window for a molecule.

`unit`([unit])
  Sets or returns the energy unit for the energy level diagram. unit has to be one of the integer constants `HARTREE`, `KJ/MOL`, `EV`, or `1/CM` defined in the `energylevel` module.

`resolution`([resolution])
  Sets or returns the resolution for the energy level diagram. resolution has to be a double greater than zero.

`mode`([mode])
  Sets or returns the mode for the energy level diagram. mode has to be one of the integer constants `ENERGY_LEVELS` or `DENSITY_OF_STATES` defined in the `energylevel` module.

`selectMO`(mo1, [mo2])
  Selects one or two molecular orbitals. mo1 and mo2 have to be integers between 0 and the number of molecular orbitals.

`deselect`()
  Deselects molecular orbitals which have been selected with a call to `selectMO`.

`saveDrawing`(format, filename)
  Saves the energy level diagram to file. format has to be one of the integer constants `TIFF`, `PNG`, `HPGL`, or `POSTSCRIPT` defined in the `viewmol` module. filename has to be a string containing the name of the file the drawing is saved to.

The energy level diagram window can be closed by deleting the `energylevel` object.