HEIDENHAIN POSITIP 8000 Operating Instructions Manual page 323

Settings | Axes
Reference system
A reference system is required to define positions in a plane or in space. The
position data are always referenced to a predetermined point and are described
through coordinates.
The Cartesian coordinate system (a rectangular coordinate system) is based
on the three coordinate axes X, Y and Z. The axes are mutually perpendicular
and intersect at one point called the zero point. A coordinate identifies the
distance from the zero point in one of these directions. A position in a plane is
thus described through two coordinates, and a position in space through three
coordinates.
Coordinates that are referenced to the zero point are referred to as absolute
coordinates. Relative coordinates are referenced to any other known position
(reference point) you define within the coordinate system. Relative coordinate
values are also referred to as incremental coordinate values.
Figure 83: Rectangular reference system (Cartesian coordinate system)
HEIDENHAIN | POSITIP 8000 | Operating Instructions | 09/2018
20
323