Value

Meaning

ANN_UNIT_INCHES

[0] Inches.

ANN_UNIT_FEET

[1] Feet.

ANN_UNIT_YARDS

[2] Yards.

ANN_UNIT_MICROMETERS

[3] Micrometers.

ANN_UNIT_MILLIMETERS

[4] Millimeters.

ANN_UNIT_CENTIMETERS

[5] Centimeters.

ANN_UNIT_METERS

[6] Meters.