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

Attribute Value
Object class windmill_pnt
Entity class WINDMILL
Additional entity class Not applicable
Object inheritance graphic_point
Entity source US Standard Entity
Map series Topo50 Topo250 Ant50
LSLIFF object class 189

Object attributes

Attribute LSLIFF code
Shapefile field
Data type
Attribute description Attribute values*
windmill_use 1135
power generation
UFID 1000
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
9 2013-09-25 corrected entry for windmill_use from 'power_generation' to 'power generation'
8 2012-08-28 Updated map image and aerial view; added representation specification and example feature photographs
7 2012-08-28 Added scale-specific definitions
6 2010-03-01 changed attribute values for windmill_use
5 2006-11-08 changed windmill_use attribute values
4 2003-06-30 removed attribute value
3 2001-11-23 unspecified update
2 2001-07-01 attribute objects added
1 1999-03-01 intial status