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.
Description
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
See also: pipeline_cl
Class attributes
| Attribute | Value |
|---|---|
| Object class | gas_valve_pnt |
| Entity class | TRANSMISSION LINE |
| 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 |