The package enables the user to draw (using PSTricks) the diffraction patterns
for different geometric forms of apertures for monochromatic light (using
PSTricks). The aperture stops can have rectangular, circular or triangular
openings. The view of the diffraction may be planar, or three-dimensional.
Options available are the dimensions of the aperture under consideration and of
the particular optical setting, e.g. the radius in case of an circular opening.
Moreover one can choose the wavelength of the light (the associated color will
be calculated by the package).
