LINZ Ortho world files

Brian at the Surveying Department at the University of Otago has released world files for all the orthophotography on the Land Information New Zealand website. You can download them from here. Here is the info contained in the readme file.

The two zip files here (jgw.zip and twf.zip) contain the georeferenceing information required for the LINZ NZTM orthophotos. The names of the files have been changed to remove the fiscal year information ñ i.e. bq23b_fy_05_06.jpg has been changed to bq23.jpg.

I have not checked any of the tiff orthophotos against these georeferenceing files (I simply changed the jgw extension to twf), but they should work ok.

Feel free to use and redistribute these files, however we would request that you acknowledge the School of Surveying, University of Otago in any use of them.

If you find any mistakes please let me know at brian@surveying.otago.ac.nz

You can obtain the orthophotos from the LINZ website at
http://www.linz.govt.nz/core/topography/aerialandorthophotos/nztm/index.html

Brian Grant
School of Surveying
University of Otago
www.surveying.otago.ac.nz
October 2006

Begs the question - why isn't LINZ releasing all their images with the appropriate world files? Hello, LINZ, are you listening? ;)

Comments

Wrong

Actually it was not Bruce who did this at all - it was Brian Grant. Perhaps you should actually read the contents of the readme.txt file.

Thanks for the correction

Thanks for the correction Brian, I have updated the article to reflect this. The reason I said Bruce was because I didn't have time to actually look at the contents - I just made the post based on Bruce's post to gislist. My apologies if I offended you by not giving credit where it was due.

Cheers Gavin

NZMG Files

When I last checked (5 April 2007) the ZIP file containing the NZMG world files was empty.