2004

Combine or Offset Points and Coordinates | 245
Here is the command line sequence:
Command: circle
Specify center point for circle or [3P/2P/Ttr (tangent tangent radius)]: .x
of: mid
of: Select the horizontal line on the lower edge of the holding plate
of: (need YZ): mid
of: Select the vertical line on the left side of the holding plate
of: Diameter/<Radius> Specify the radius of the hole
Coordinate filters work only when AutoCAD prompts you for a point. If you
try to use a coordinate filter at the Command prompt, AutoCAD displays an
error message.
To use coordinate filters to specify a point in 2D
1 At the prompt for a point, enter a coordinate filter (.x or .y).
For example, enter .x to specify the X value first.
2 To extract the first coordinate value, specify a point.
For example, if you entered .x in step 1, AutoCAD extracts the X value
from this point.
3 To extract the next coordinate value, specify a different point at the
prompt for the remaining coordinate values.
For example, if you entered .x in step 1, AutoCAD prompts for the Y and
Z coordinate values.
AutoCAD defines a new point at a location that combines the coordinate
values extracted from the points you specified in steps 2 and 3.
Note Instead of specifying a point in steps 2 or 3, you can enter a numeric
value.
midpoint y
midpoint x
result