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Lock an Angle for One Point (Angle)
You can specify an angle override that locks the cursor for the next point
entered.
To specify an angle override, enter a left angle bracket (<) followed by an angle
whenever a command asks you to specify a point. The Command prompt
sequence below shows a 30-degree override entered during a LINE command.
Command: line
Specify first point: Specify a start point for the line
Specify next point or [Undo]: <30
Angle Override: 30
Specify next point or [Undo]: Specify a point
The angle you specify will lock the cursor, overriding Grid Snap, Ortho mode,
and PolarSnap. Coordinate entry and object snaps have precedence over an
angle override.
Combine or Offset Points and Coordinates
To specify a new point location, you can combine coordinate values from
several points or you can specify offsets from existing objects.
Combine Coordinate Values (Coordinate Filters)
You can use coordinate filters to extract one coordinate value at a time from
locations on existing objects.
Coordinate filters specify a new coordinate location by using the X value from
one location, the Y value of a second location, and, for 3D coordinates, the Z
value of a third location. When used with object snaps, coordinate filters
extract coordinate values from an existing object.
Coordinate filters are commonly used to locate the center of a rectangle and
to locate the projection of a 3D point on the XY plane of the UCS.
To specify a filter at the Command prompt, enter a period and one or more
of the letters X, Y, and Z. The next entry is limited to a specific coordinate
value.
648 | Chapter 17 Use Precision Tools