Specifies a precise point at a location on an object.
Command entry:
Within a command, at a prompt to locate a point, specify an object snap When you specify an object snap, the cursor snaps to the specified point on an object closest to the center of the cursor. By default, a marker and a tooltip are displayed when you move the cursor over the object snap location on an object.
If you specify a single object snap, it stays in effect only for the next point you specify.
You can specify an object snap with any of the following methods:
Using the OSNAP or DSETTINGS commands, you can specify a set of running object snaps. Running object snaps are one or more object snaps that remain in effect as you work.