Cartesian, cylindrical, or spherical coordinates locate points when you are creating objects in 3D.

- Enter 3D Cartesian Coordinates
3D Cartesian coordinates specify a precise location by using three coordinate values:

*X*,*Y*, and*Z*. - Enter Cylindrical Coordinates
3D cylindrical coordinates describe a precise location by a distance from the UCS origin in the

*XY*plane, an angle from the*X*axis in the*XY*plane, and a*Z*value. - Enter Spherical Coordinates
3D spherical coordinates specify a location by a distance from the origin of the current UCS, an angle from the

*X*axis in the*XY*plane, and an angle from the*XY*plane.