NZ Topo - object class gas_valve_pnt

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


A device for the controlling of gas through a pipe

Topo50 description

Gas valves on some of the major reticulation gas pipelines were orginally captured by surveryors in the field. As they are not always visible on imagery, these features are left unchanged unless more current information becomes available

Representation specification

Representation specification showing gas_valve_pnt

Click to enlarge image

See also: pipeline_cl

Class attributes

Attribute Value
Object class gas_valve_pnt
Additional entity class Not applicable
Object inheritance simple_point
Entity source US Standard Entity
Map series Topo50
LSLIFF object class 46

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 2010-03-01 object class change
2 2001-11-23 Unspecified update
1 1999-03-01 intial status