What is it?
NZTopoOnline is the Internet version of the New Zealand Topographic
Database (NZTopo) displaying seamless coverage of the 1:50,000 scale topographic
mapping of New Zealand published by LINZ for the New Zealand government.
Using NZTopoOnline you can make up your own map by choosing an
area of New Zealand and our offshore islands. Select the nearest road
or place name to your desired area using the query tool, or click and
drag your mouse over an area of the map, and zoom in to the scale you
choose. Then create your map. NZTopoOnline allows you to cut across
the map sheets you've been used to with paper maps.
Making NZTopo available through the Internet is consistent with the department's
e-LINZ strategy and parallels other initiatives within the organisation
to progressively adopt the internet as the principal method for the delivery
of information and services.
This service is designed to provide better access to topographic information
for the emergency services, government departments and other key stakeholders.
Users can view the most up-to-date topographic information that is held
in NZTopo round the clock, subject to periodic maintenance down time.
Use of the data
The topographic data displayed on this website has been cartographically
generalised, and is intended for published maps at a scale of 1:50,000.
You need to consider this when using at any other scale. You should consider
its application in relation to your requirements. For scale, generalisation
and accuracy specifications of the topographic data in NZTopoOnline,
consult the NZTopo Data Dictionary.
Tips on using NZTopoOnline
Click once and wait for the map view to download
When you open NZTopoOnline you open a map viewer in your browser.
Each time you make a selection using the zoom tool or search, your map
request is sent back to the LINZ web mapping server (WMS). The WMS then
sends the map back. Over a modem this can take a while. If you keep on
clicking before the map comes back you'll send more requests to the WMS.
This will slow the whole process down.
Features
This table lists the features available in NZTopoOnline and how
to access them
|
Feature
|
Toolbar icon
|
How to access
|
|
Zoom to reveal more detail on each map.
|
|
Use the zoom tools to zoom in and out
|
|
Pan around each map view to reveal the adjacent area
|
|
Use the pan tool
|
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Search the Topo database by place name or road name and zoom straight
to that location
|
|
Select the search button to bring up the search box and enter a
location
|
|
Pan to a user-specifed location
|
|
Select the pan to coordinate tool.
Enter a coordinate then click the Centre Map button.
Note- You’ll need to use the right type of coordinates. If you
need to convert co-ordinates from another projection, use the Co-ordinate
Calculator
|
|
Zoom to user specified scale
|
|
Select the Zoom to User Specified Scale tool and choose a scale
from the pop-down menu.
|
|
Create and print out customised maps
|
|
Select the Custom Print tool. Create A4-A1 (Landscape) customised
maps in a variety of formats and scales.
Note: What you see on the screen is what you will get. To change
the data viewed onscreen use the Table of Contents tools and refresh
the map.
|
|
Extract Vector Data
|
|
Select the custom extract tool to download NZTopo vector data in
ESRI Shapefile format.
|
|
View data in a choice of coordinate systems
|
|
|
|
Help
|
|
Access a detailed description of the NZTopoOnline toolbar and main functions from
within the map viewer.
|
|
Advanced features
|
|
|
|
Extract and download NZTopo vector data in ESRI Shapefile format
(see extract vector data above)
|
|
Select the Custom Extract button to extract the GIS vector data.
Note: You’ll need a GIS system to manipulate the data. To view
the map you can download a free viewer - ESRI Arc Explorer
http://www.esri.com/software/arcexplorer/index.html
You can get help from hotline@eagle.co.nz
for Arc Explorer only.
|
|
Interoperate with other data using the web map server (WMS)
(see Web Services)
|
|
WMS complies with Open GIS Consortium
(OGC) standards for interoperability.
http://www.opengis.org/
|
The NZTopoOnline toolbar is located on the left hand side of the
map viewer. The toolbar gives you access to a range of functions.
There is another set of links along the bottom of the screen. These are:
| Feature |
Toolbar icon
|
How to access |
| Notify errors |
|
Fill out the online form on the LINZ website to report
map errors |
| Webmaster |
|
Send us your comments about the website |
| Coordinate calculator |
|
Online conversions between the most commonly used coordinate
systems in New Zealand |
| Projection information |
|
All about datums and projections |
| Data dictionary |
|
Metadata about the NZTopo features |
|
Download orthophotos
|
|
Orthophotographic images based on NZMG for free download.
|
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