Geekzone: technology news, blogs, forums
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.


49 posts


#196313 26-May-2016 19:41
Send private message

Hmmm. Topo maps are an interesting subject- at least, to me. The current LINZ maps of Rotorua (where I live) are based on aerial photos taken in 1975 and produced on an electro-mechanical plotter in 1977. The plotter made analogue maps- not digital! on draughting film. The projection was based on a now-obsolete mathematical construct of the world.


 Since then, the analogue pictures have been digitised, adjusted to a new projection, and periodically 'updated' by a contractor, working within a budget. I am sure that the contractors compare the 'old map' with new aerial photos (or even satellite photos!), and alter things like vegetation cover, land usage, housing, roads, etc. I expect that they also use GIS data from local bodies to help them. But the basic map was made some 40 years ago.


The 'bones' of landscape do not change fast (except say in Christchurch lately). I think that it is a great tribute to Lands and Survey all those years ago that they did such an enduring job! But it must be about time that the topo maps were replaced with new from the base up.


And, a personal thing of mine, that private roads (eg permanent forestry roads) were named.

Create new topic
57 posts

Master Geek

  #1560366 27-May-2016 00:02
Send private message

Check out the topo section on NZOGPS.


Free kids accounts - trade shares and funds (NZ, US) with Sharesies (affiliate link).

49 posts


  #1560912 27-May-2016 18:53
Send private message

Eh? Still based on photogrammetry done ~40 years ago, on photos ditto, and 'updated' within a tight budget.

Create new topic

News and reviews »

InternetNZ Releases Internet Insights 2023
Posted 20-Feb-2024 10:31

Seagate Adds 24TB IronWolf Pro Hard Drives for Multi-user Commercial and Enterprise RAID Storage Solutions
Posted 19-Feb-2024 16:54

Seagate Skyhawk AI 24TB Elevates Edge Security Capacity and Performance
Posted 9-Feb-2024 17:18

GoPro Releases Quik Desktop App for macOS and Introduces Premium+ Subscription Tier
Posted 9-Feb-2024 17:14

Ring Introduces New Ring Battery Video Doorbell Pro
Posted 9-Feb-2024 16:51

Galaxy AI Transforms the new Galaxy S24 Series
Posted 18-Jan-2024 07:00

D-Link launches AI-Powered Aquila Pro M30 Wi-Fi 6 Mesh Systems
Posted 17-Jan-2024 20:02

Newest LG 4K Lifestyle Projector Doubles as Art Objet
Posted 9-Jan-2024 15:50

More LG Smart TV Owners Set To Enjoy the Latest webOS Upgrade
Posted 9-Jan-2024 15:45

Panasonic Announces the Z95A and Z93A With Fire TV Built In
Posted 9-Jan-2024 15:30

Amazon Echo Pop Review
Posted 8-Jan-2024 14:22

Samsung Tab S9 FE Review
Posted 17-Dec-2023 08:26

Year in Search: What Kiwis Searched for in 2023
Posted 12-Dec-2023 08:18

New Air Traffic Management Platform and Resilient Buildings a Milestone for Airways
Posted 6-Dec-2023 05:00

Logitech G Launches New Flagship Console Wireless Gaming Headset Astro A50 X
Posted 5-Dec-2023 21:00

Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.

Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.