Posted on 2 Comments

Queensland Globe – Nearly Nearmap

Earth from space

Queensland Globe free spatial data

We’ve taken the loss of Nearmap hard but now here in Queensland is something pretty close. I have to say I’m very relieved.

Queensland Globe (QG) is a Queensland Government open data initiative which uses Google Earth (GE) to present a variety of spatial data and they are progressively adding more.

Learn more of QLD Globe

Here is why Queensland Globe is special

  • The aerial photography is reasonably up to date in the areas I have looked; it’s not as good as Nearmap, but a lot better than Google Maps (GM).
  • The aerial photography has been selected for clarity, unlike GM, which can be murky, shadowed and useless.
  • The orthorectification of the aerial photography appears to be quite accurate.
  • Photography is high definition – again better than GM but not as good as Nearmap.
  • It has 10m contours which look reasonably good.

But Queensland Globe is not perfect:

  • No georeferencing information is available, but see below.
  • Contours disappear when you zoom in very close.
  • Cadastre is unreliable and sometimes appears only when zoomed out too far for usefulness. Just keep trying.
  • Images can’t be downloaded, you have to take screenshots.

Georeferencing

Here is how to add georeferencing information to the GE / GQ image. Download the Gridlines Manager .kml file.

Gridlines Manager

This one appears in the Place pane in GE (I’m not sure how or why) and will remain there for future use. (It seems to be necessary to load the QG KML file each time.) Switch on 0.1km grid lines as well as the QG imagery and contours, take a screenshot and you have an image which you can easily load into Ocad and print out for fieldworking.

Once again the gridlines are not entirely reliable, sometimes they don’t display, I think because the system relies upon the availability of a server somewhere to provide the data.

How to load the image in Ocad? I find it’s easiest to import a GPX track somewhere in the vicinity of your map, as this fixes up your map’s Coordinate System, Zone and Offset, and locates you near where you want to be. Now in Ocad go to Map | Set Scale etc and set a grid distance of 100m. Switch on the grid and you can now load the QG image and adjust to the gridlines.

2 thoughts on “Queensland Globe – Nearly Nearmap

  1. G’day there,
    Thanks for bringing Queensland Globe to my attention.
    You may like to update the link to the operation to:
    https://qldglobe.information.qld.gov.au/

    You will probably need to sign up to QGov, the overarching access point to the Queensland Government on-line presence, which application point will present itself during the sign-up process.

    Wish I had time to go orienteering too.

    Cheers

    1. Thank you Jen. Much appreciated.

Leave a Reply

Your email address will not be published. Required fields are marked *