## Creating Measured Feature Sets

The Insert | Feature | Measured | Feature Set menu item inserts a Measured Feature Set command (also called a Point Set) into the Edit window. This command creates a scan of a single point that will measure the same point a defined number of times in order to obtain an averaged (and hopefully more accurate) representation of the point measurement.

Point Sets are most often used as inputs when performing Leapfrog alignment operations with a manual arm machine. See "Performing a Leapfrog Operation" in the "Creating and Using Alignments"section for more information.

In Command mode, the Measured Feature Set looks like this:

SCN1 =FEAT/SET,RECT

THEO/0,0,0,0,0,1

ACTL/0,0,0,0,0,1

MEAS/SET,0

ENDMEAS/

Pressing F9 while your cursor lies within this command displays the Measured Set dialog box:

Measured Set dialog box

For information on this dialog box, see the "Editing a Measured Feature" topic; this dialog box contains many of the same items are already discussed in that topic.

To Create a Measured Feature Set (Point Set):

1. Press F9 on the inserted measure feature set command.

2. In the dialog box, type in the point's theoretical XYZ location and IJK vector.

3. In the Number of Hits box, specify the number of measurements you want PC-DMIS to take on this point. The higher the number, the better average you will receive.

4. Select other options in the dialog box as desired.

5. Click OK. PC-DMIS updates the command in the Edit window.

For example, a finished point set scan with 5 iterations might look like this:

SCN1 =FEAT/SET,RECT

THEO/107,11,21,0,0,1

ACTL/0,0,0,0,0,1

MEAS/SET,5

HIT/BASIC,NORMAL,107,11,21,0,0,1,0,0,0,USE THEO = YES

HIT/BASIC,NORMAL,107,11,21,0,0,1,0,0,0,USE THEO = YES

HIT/BASIC,NORMAL,107,11,21,0,0,1,0,0,0,USE THEO = YES

HIT/BASIC,NORMAL,107,11,21,0,0,1,0,0,0,USE THEO = YES

HIT/BASIC,NORMAL,107,11,21,0,0,1,0,0,0,USE THEO = YES

ENDMEAS/