Attribute: Vertical length

Acronym: VERLEN

Code: 186

Attribute type: F

Definition:

The total vertical length of an object.

References:

INT 1: IE 5; IL 21.3;

S-4: 303;

Minimum Value: 0

Indication:

Unit: defined in the HUNI subfield of the DSPM record or in the HUNITS attribute of the M_UNIT meta object class, e.g. metre (m)

Resolution: 0.1 m or 0.1 ft

Format:

xxx.x

Example:

24.5 for a vertical length of 24.5 metres.

Remarks:

For floating objects: the vertical distance from the surface of water to the highest point of that object.

For fixed objects: the vertical distance from seabed or ground to the highest point of that object.

For objects on top of other objects: the vertical distance from the lowest to the highest point of that object.

Vertical length measurements do not require a datum.