World Wind - go get it!

Submitted: Wednesday, May 11, 2005 at 23:38
ThreadID: 22915 Views:2688 Replies:4 FollowUps:11
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For the last few weeks, I've been spending much more time than I ought to with an absolutely riveting piece of FREE software - NASA's "World Wind": http://worldwind.arc.nasa.gov/
It's a HUGE download and requires a fast computer and broadband connection, but you won't regret it. Zoom into Oz and any location of your choice, and you can view it from any height and any angle (yes, in 3D colour!). The resolution at less than 20,000 metres height is not too brilliant, but good enough to see what it's like. Absolutely brilliant for planning trips: I use Oziexplorer on one screen and World Wind on the other, checking out the topography of a place much better than any "flat" map could do, and since it's based on real satellite photography it's an excellent way of working out which route is the most interesting. Beleive it or not, most dirt tracks will show up, even though they may be somewhat blurred, and if you choose the right 3D angle you get a pretty good impression of topography, vegetation etc.
Priceless, especially with the prospect of further enhancements, especially more high-res photography.
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Reply By: Nudenut - Thursday, May 12, 2005 at 08:38

Thursday, May 12, 2005 at 08:38
if it does install and your running zonealarm...shut down zonealarm
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Follow Up By: Nudenut - Thursday, May 12, 2005 at 08:39

Thursday, May 12, 2005 at 08:39
that should be ..if it Does Not install
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Reply By: The Explorer - Thursday, May 12, 2005 at 11:35

Thursday, May 12, 2005 at 11:35
Sounds like it might be nearly as good as OziExplorer3D
Cheers
Greg
I sent one final shout after him to stick to the track, to which he replied “All right,” That was the last ever seen of Gibson - E Giles 23 April 1874

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Follow Up By: Member - Mungo Explorer (NSW) - Thursday, May 12, 2005 at 13:01

Thursday, May 12, 2005 at 13:01
That reminds me that I've been meaning to try Ozi3D for ages :-)
They are different, however, in one crucial respect: for Ozi3D you need to obtain the elevation data first, and even then what you get is a calculation from the map. WW doesn't need anything and what you get is photography. Even though the satellite photos are some years old and a bit blurred when closing in below 20000 metres, they still allow you to see real vegetation etc rather than mere map colourings.
I suppose Ozi3D is better for use with GPS and out in the bush where you can't download the huge files used by WW. But for trip planning at home it's great fun, and useful too.
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Follow Up By: V8troopie - Thursday, May 12, 2005 at 14:18

Thursday, May 12, 2005 at 14:18
I have been using the WW sat images to see where the channels are in the extensive shallow waters of Shark Bay. It was a brilliant idea and very useful when used in conjunction of a marine chart.
The images do get sharp after some time, at least on some coastal area's they did. There must be some dowload or access limit as the close zoomed image updates for a bit (red rectangled area jumping about) then goes on hold for 2 minutes and so on.
This happened on a high speed link as well as on the home dial up connection.

I tried to zoom in close on the CSR track but it never got as sharp as the Shark Bay images. I guess the images they use do vary a bit, even zooming into a Perth suburb never got me really sharp images. Perhaps they're classified :-0
Klaus
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Follow Up By: The Explorer - Thursday, May 12, 2005 at 17:41

Thursday, May 12, 2005 at 17:41
Dont get me wrong WW looks very good – and thanks for the link - great resource….just thought I’d mention that Ozi3D does a similar job. Yes you need to download the height data first to use with Ozi3d but you also have to download data with WW (continuously and every time you log on - not just once) so dont see this as an issue (well a different issue anyway).

Not sure what you meant by "and even then what you get is a calculation from the map". In Ozi3D the map/airphoto is draped over the elevation data which is the same as with WW – using the same elevation data, same picture and same exaggeration the image would look the same with both programs I would think.

Good thing about Ozi3D is that you can use any image you want as the base – you are not restricted to the sat photos on nasa site. Air photos (4metres per pixel) available from DLI in WA are very good when used with 3 second data in Ozi3D and obviously significantly better than nasa sat photos…but they’re not free so bit a hindrance there. You can also plot track files and wayponts in Ozi3D - no need to guess where you want to go or where youve been.
Cheers
Greg
I sent one final shout after him to stick to the track, to which he replied “All right,” That was the last ever seen of Gibson - E Giles 23 April 1874

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Follow Up By: Member - Mungo Explorer (NSW) - Thursday, May 12, 2005 at 17:51

Thursday, May 12, 2005 at 17:51
As I said, will try Ozi3D one of these days. Forgot that you could use aerial photos in Ozi, I suppose that must give the same or better effect as WW if you can get hold of better photography.
Let a hundred flowers bloom, I say :-)
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Reply By: Member - iMusty (VIC) - Thursday, May 12, 2005 at 17:43

Thursday, May 12, 2005 at 17:43
I dont know too much about computors and It said it was gonna take 1 hour and 20 mons to download. Will that take ALL my pc space?
AnswerID: 111030

Follow Up By: Member - Mungo Explorer (NSW) - Thursday, May 12, 2005 at 17:49

Thursday, May 12, 2005 at 17:49
As I said, you need a broadband connection. Don't fancy using it with dial-up either...
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Follow Up By: Member - iMusty (VIC) - Thursday, May 12, 2005 at 18:12

Thursday, May 12, 2005 at 18:12
I've GOT ADSL
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Follow Up By: Member - JohnR (Vic) - Thursday, May 12, 2005 at 18:18

Thursday, May 12, 2005 at 18:18
Would take hours on country lines..................... You better send me a CD iM
Cheers,
Who?
John

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Follow Up By: Member - Mungo Explorer (NSW) - Thursday, May 12, 2005 at 18:21

Thursday, May 12, 2005 at 18:21
In that case it shouldn't take over an hour. It's a huge download to begin with (something like 160 MB, speaking from memory) but an ADSL connection should cope easily enough with the ongoing data downloads while using it.
If you can afford to dedicate a largeish disk cache to it (mine is 5Gb for now) and tend to explore limited areas only, you won't have to download the data files all the time either. I have most of NSW in my on-disk cache now...
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Follow Up By: Member - iMusty (VIC) - Thursday, May 12, 2005 at 18:23

Thursday, May 12, 2005 at 18:23
Was 120 MB.

OK I'll go back and have a (proper) look.

Thanks
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Reply By: Nudenut - Thursday, May 12, 2005 at 20:43

Thursday, May 12, 2005 at 20:43
see if you can find the marree man?
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Follow Up By: Member - Mungo Explorer (NSW) - Thursday, May 12, 2005 at 21:16

Thursday, May 12, 2005 at 21:16
Who or what's that? Some kind of yeti?
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