NZ Topo - object class windmill_pnt

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


A mill or other machine that runs on the energy generated by a wheel of adjustable blades or flats rotated by the wind

Topo50 description

Only those windmills that form part of a windfarm will be held in the data and shown on the printed maps. Currently, some smaller farm-built windmills are held in the data and shown on the printed maps; these will be removed progressively as sheets undergo revision

Topo250 description

Only those significant by their size or location are held in the Topo250 data and shown on the Topo250 printed maps; these are a generalised subset of those shown on the Topo50 series

Representation specification

Representation specification showing windmill_pnt

Click to enlarge image

Class attributes

Object classwindmill_pnt
Entity classWINDMILL
Additional entity classNot applicable
Object inheritancegraphic_point
Entity sourceUS Standard Entity
Map series Topo50 Topo250 Ant50
LSLIFF object class189

Object attributes

AttributeLSLIFF code
Shapefile field
Data type
Attribute descriptionAttribute values*
power generation
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 versionRevisedDescription
92013-09-25corrected entry for windmill_use from 'power_generation' to 'power generation'
82012-08-28Updated map image and aerial view; added representation specification and example feature photographs
72012-08-28Added scale-specific definitions
62010-03-01changed attribute values for windmill_use
52006-11-08changed windmill_use attribute values
42003-06-30removed attribute value
32001-11-23unspecified update
22001-07-01attribute objects added
11999-03-01intial status