|huge LiDAR holdings of Denmark are now "open data" for free download (instruction inside)||Martin Isenburg||2/1/13 2:29 AM|
I just received word that huge LiDAR holdings for all of Denmark are now OPEN DATA. This may not be the most recent data set but an earlier version with lower point density ... but I just looked at a tiny subset at the corner (the "punktsky_6400_580" download) and that has only 0.5 pts / square meter. Below are the detailed download instructions courtesy of Klaus B. Vestergaard. Unfortunately they do not yet use LASzip (which gets 10:1 compression on this data) and therefore you will probably kill their data servers if you all decide to download all the Danish' LiDAR today ... (-;
http://rapidlasso.com - fast tools to compress huge LiDARs
---------- Forwarded message ----------
From: Klaus B. Vestergaard
Date: Thu, Jan 31, 2013 at 11:46 PM
Subject: RE: Free Lidar data in Denmark - how to download?
To: Martin Isenburg
Select (DHM) from the list below Korttype and after you’ve create a new user account you’d be able to login …
To create an account you need to fill in this form and press “OPRET NY BRUGER”
You’ll receive an email where you can click on the first hyperlink to complete your registration
This login option appears on your screen – press Log Ind
Create a solid password, and if you like (not mandatory) your name and phonenumber – press Gem (That’s SAVE in English)
Go back to this first page and fill in Brugernavn and Password and press Log Ind
… and click at the DHM/Punktsky link ….
This pages opens where you can interactively select the AOI by clicking in the map, note that the files requested appears in a list just below the map …
I recommend that you start by selecting 1 AOI and then click Læg I Kurv
Now the – Indkøbskurv (Basket) contains 1 item and you can now press Se Kurv (Have a look in the basket) or Bestil (order)
Here I’ve pressed Se Kurv and can see the item I’ve chosen, now I press Bestil to complete the order …
Press Forsæt (Continue)
The order is processed and depending on the amout/size of your order and other orders being processed at the same time it can take a while before the page refreshes and you see this ….
If you tired of waiting an email is sent to you when the order is ready for download.
This is how the actual download look like, note the Tid tilbage is not the estimated time it’ll take to download the order, but time remaining before the order is cancelled.
Now press DOWNLOAD … and you are finished ;o)
Well, not the most user friendly download service I admit, but “with a little help from a friend” you’ll get through it ;o)
Klaus B. Vestergaard