NZ Topo - object class tower_pnt
This page describe the tower_pnt object class used to represent objects in the NZTopo topographic database.
Description
A tall framework or structure, the elevation of which is functional
Topo50 description
Only those significant either by their size or location are held in the data and shown on the printed maps.
Class attributes
| Attribute | Value |
|---|---|
| Object class | tower_pnt |
| Entity class | TOWER |
| Additional entity class | Not applicable |
| Object inheritance | graphic_point |
| Entity source | US Standard Entity |
| Map series | Topo50 |
| LSLIFF object class | 170 |
Object attributes
| Attribute | LSLIFF code Shapefile field Data type |
Attribute description | Attribute values* | ||
|---|---|---|---|---|---|
| tower_material | 1099 material string |
|
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| UFID | 1000 t50_fid integer |
A unique identifier for use on Topo50 data in the LINZ Data Service. This is not a universal ID. The intention is to manage these ID’s as persistent, however this is not guaranteed and there will be instances where what appears to be a minor change to a feature may result in a new ID being assigned. |
|
* See explanation of attribute values for more information about how attribute values are represented.
Change log
| Feature version | Revised | Description |
|---|---|---|
| 7 | 2012-08-28 | Updated map image and aerial view; added representation specification and example feature photographs |
| 6 | 2012-08-28 | Updated map image and aerial view; added representation specification and example feature photographs |
| 5 | 2012-08-28 | Added scale-specific definitions |
| 4 | 2010-03-01 | removed attributes tower_height and tower_use |
| 3 | 2005-05-12 | new attribute tower_height and new attribute value for tower_use |
| 2 | 2001-11-23 | unspecified update |
| 1 | 1999-03-01 | intial status |