Working with coordinates

For accuracy in a drawing, you can locate specific points by entering coordinates as you draw or modify entities. When you create two-dimensional entities, you enter two-dimensional coordinates; for three-dimensional entities, you specify three-dimensional coordinates.

You can also specify coordinates in relation to other known locations or entities in a drawing. In particular, when you work in three-dimensional drawings, it is often easier to specify coordinates in relation to a two-dimensional working plane, called a user coordinate system (UCS).

This section explains how to work with coordinates, including how to:

    Use two-dimensional and three-dimensional coordinate systems.

    Specify absolute and relative coordinates.

    Specify polar, spherical, and cylindrical coordinates.

    Define and manipulate user coordinate systems.

Tell me about...

Using Cartesian coordinates

Using two-dimensional coordinates

Using three-dimensional coordinates

Using xyz point filters

Defining user coordinate systems