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

Attribute Value
Object class weir_cl
Entity class DAM
Additional entity class Not applicable
Object inheritance simple_line
Entity source US Standard Entity
Map series Topo50
LSLIFF object class 185

Object attributes

This object class does not have attributes.

Change log

Feature version Revised Description
5 2012-08-28 Updated map image and aerial view; added representation specification and example feature photographs
4 2012-08-28 Added scale-specific definitions
3 2008-04-10 Removed reference to seed and void objects
2 2001-11-23 Unspecified update
1 1999-03-01 intial status