NZ Topo - object class boom_cl

This page describe the boom_cl object class used to represent objects in the NZTopo topographic database.


Floating barrier across a river or harbour mouth.

Topo50 description

Only those significant either by their size or location are held in the data and shown on the printed maps

Representation specification

Representation specification showing boom_cl

Click to enlarge image

Class attributes

Object classboom_cl
Entity classBREAKWATER
Additional entity classNot applicable
Object inheritancesimple_line
Entity sourceUS Standard Entity
Map series Topo50
LSLIFF object class6

Object attributes

This object class does not have attributes.

Change log

Feature versionRevisedDescription
42012-08-28Updated map image and aerial view; added representation specification and example feature photographs
32012-08-28Added scale-specific definitions
22001-11-23Unspecified update
11999-03-01intial status