Iterative Alignment Command Format

The Edit window command line for this option reads:

ALIGNMENT/ITERATE,'feat_id'
, PNT TARGET RAD=n, START LABEL=label, FIXTURE TOL = n, ERROR LABEL=label
MEAS ALL FEAT=NO/ALWAYS/ONCE,
MAX ITERATIONS = n
LEVEL AXIS =axis, ROTATE AXIS=axis, ORIGIN AXIS=axis
LEVEL = id, id, id,...
ROTATE = id, id,...
ORIGIN = id,...

Changeable field: "feat_id"
These are the features that are used to do the iterative alignment. Currently, you must select at least three different features for the calibration. If features support a datum axis in more than one direction, such as circles or slots, you can specify them in more than one datum axis. For example, you can use a circle to both establish the level axis as well as the rotation axis. Typically, you can only use measured points (including vector and surface points) to establish one datum axis.

PNT TARGET RAD = This option specifies the target radius value for the measured point features used in the alignment. See "Point Target Radius" for complete information.

START LABEL = PC-DMIS starts at the label specified here when remeasuring alignment features. You must set MEAS ALL FEAT to ALWAYS for this to work. See "Start Label" for complete information.

FIXTURE TOL = This is the tolerance that PC-DMIS uses to compare measured alignment features to their theoretical values. See "Fixture Tolerance" for complete information.

ERROR LABEL = PC-DMIS goes to the label specified here when the fixture tolerance level is exceeded. If you don't define a label, PC-DMIS generates an error message showing the amount of error on each of the input features. See "Error Label" for complete information.

LEVEL AXIS = PC-DMIS uses the LEVEL input features to set the orientation and origin of the axis specified here. See "Level" for complete information.

ROTATE AXIS = PC-DMIS uses the ROTATE input features to set the rotation of the axis specified here about the level axis. The origin of the axis specified here is also set by PC-DMIS using the ROTATE input features. See "Rotate" for complete information.

ORIGIN AXIS = PC-DMIS uses the ORIGIN input features to set the origin of the axis specified here. See "Origin" for complete information.

MEASURE ALL FEATURES = This option either re-measures the input features or automatically re-executes a portion of the measurement routine in DCC mode. There are three possible settings for this option:

MAX ITERATIONS = This option determines the maximum number of iterations that PC-DMIS performs for this iterative alignment. PC-DMIS only uses this value if the Meas All Always check box is selected.