Autodesk 057B1-41A111-1001 - AutoCAD LT 2010, Руководство пользователя

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When you need to define a point based on a previous point, enter the relative
spherical coordinate values by preceding them with the @ sign.
Enter Spherical Coordinates
To enter relative spherical coordinates
■ At a prompt for a point, enter the coordinate values using the following
format:
@x<angle from the x axis<angle from the xy plane
For example, @4<60<30 represents a location that is 4 units from the last point
measured at 60 degrees from the positive X axis in the XY plane and at 30
degrees from the XY plane.
Use Dynamic Input
Dynamic Input provides a command interface near the cursor to help you
keep your focus in the drafting area.
When dynamic input is on, tooltips display information near the cursor that
is dynamically updated as the cursor moves. When a command is active, the
tooltips provide a place for user entry.
After you type a value in an input field and press Tab, the field then displays
a lock icon, and the cursor is constrained by the value that you entered. You
can then enter a value for the second input field. Alternately, if you type a
value and press Enter, the second input field is ignored and the value is
interpreted as direct distance entry.
The actions required to complete a command or to use grips are similar to
those for the Command prompt. The difference is that your attention can
stay near the cursor.
Dynamic input is not designed to replace the command line. You can hide
the command line to add screen area for drawing, but you will need to display
it for some operations.
144 | Chapter 6 Create and Modify Objects