<
graphics> An
array used to store the maximum
Z coordinate
of any feature plotted at a given (X, Y) location on the
screen, used for
hidden line removal in a 2D rendering of a
3D scene. The
Z axis is perpendicular to the screen with
values increasing toward the viewer so that any point whose
Z
coordinate is less than the corresponding
Z-buffer value will
be hidden behind some feature which has already been plotted.
(1997-07-18)