NZ Topo - object class weir_cl

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


An artificial barrier placed in an open channel and over which the water flows

Topo50 description

Only those significant either by their size or location are held in the data and shown on the printed maps. Weirs are held in the data at their true size; weirs less than 50m in length are shown on the printed maps with a length of 50m.

Representation specification

Representation specification showing weir_cl

Click to enlarge image

See also: river_cl dam_cl

Class attributes

Object classweir_cl
Entity classDAM
Additional entity classNot applicable
Object inheritancesimple_line
Entity sourceUS Standard Entity
Map series Topo50
LSLIFF object class185

Object attributes

This object class does not have attributes.

Change log

Feature versionRevisedDescription
52012-08-28Updated map image and aerial view; added representation specification and example feature photographs
42012-08-28Added scale-specific definitions
32008-04-10Removed reference to seed and void objects
22001-11-23Unspecified update
11999-03-01intial status