AutoCAD 2008 User's
Guide > Create and Modify
Objects > Use Precision
Tools > Use Coordinates and
Coordinate Systems (UCS) > Enter 3D
Coordinates >

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.

*X* axis
(in the *XY* plane), and its angle from the
*XY* plane, each angle preceded by an open
angle bracket (<) as in the following format:

*X**<[**angle from X axis**]<[**angle from XY
plane**]*

NoteFor the
following examples, it is assumed that dynamic input is turned off
or that the coordinates are entered on the command line. With
Dynamic Input, you specify absolute coordinates with the *#* prefix.

*XY*
plane, 60 degrees from the *X* axis in the
*XY* plane, and 30 degrees up the *Z* axis from the *XY* plane.
5<45<15 indicates a point 5 units from the origin, 45 degrees
from the *X* axis in the *XY* plane, and 15 degrees up from the *XY* plane.

When you need to define a point based on a previous point, enter the relative spherical coordinate values by preceding them with the @ sign.