WorldWindData.com - World Wind Cache Packs

[Beansprout]

20,000 views for this page already - madness!!

[f0urtyfive]

Yes we were planning on doing that, we havent gotten around to it yet. Perhaps not packs of the whole earth in 1x1 degree squares for each level, but we were going to make it so you could request a cache pack fairly easily.

And Bean, we think someone's machine may hvae been broken and refresshing the page a lot ;P

Originally posted by f0urtyfive@May 10 2005, 06:08 AM
Yes we were planning on doing that, we havent gotten around to it yet. Perhaps not packs of the whole earth in 1x1 degree squares for each level, but we were going to make it so you could request a cache pack fairly easily.

And Bean, we think someone's machine may hvae been broken and refresshing the page a lot ;P

Quoted post

mine ! lol

[Shakespeare]

Originally posted by f0urtyfive@May 5 2005, 01:27 AM
Me and Steven (svheuven) have decided to take on a joint effort to provide cache packs, and general world wind data to the World Wind users. We're presenting this effort in the form of a new website, http://www.worldwinddata.com .
[...]
The following Packs are in line to be made (They will be shortly, dont worry) and then uploaded:
NLT Landsat 7 Layer 2 Northern Hemisphere - ???? MB Packed - 4076 MB Unpacked

Hi f0urtyfive,

One small request: please keep the packed file size below 2GB, so they are compatible with fat32 as well as better file systems. This may involve splitting large cache packs such as the NLT7 layer 2 North pack into two files.

Different reference sites suggest that the maximum file size for fat32 is either 2GB or 4GB. On my LaCie ethernet disk (which only supports fat32), I can confirm the limit is 2GB.

- John.

[5of0]

Fat32 and fat16 both have a limit of 2GB, I believe.

[Shakespeare]

Originally posted by 5of0@May 12 2005, 07:11 PM
Fat32 and fat16 both have a limit of 2GB, I believe.

Quoted post

Microsoft's web site confusingly gives two answers for the maximum file size for fat32: 2GB and 4GB. Perhaps it's implementation-dependent or changes on Microsoft's whim. What I know for sure is that my only fat32 disk has a 2GB file size limit in a 400GB volume. I'd rather use ntfs or ext3, but this particular device only supports fat32.

Microsoft gives the maximum volume size for fat16 as 4GB, and claims that volumes of up to 8TB can possibly be used with fat32 (at least in principle). The maximum size you can format to fat32 with Windows seems to be 32GB - a deliberate limitation, apparently.

[wesg]

Originally posted by f0urtyfive@May 4 2005, 05:27 PM
Me and Steven (svheuven) have decided to take on a joint effort to provide cache packs, and general world wind data to the World Wind users. We're presenting this effort in the form of a new website, http://www.worldwinddata.com .

I've asked the moderators to un-sticky our former posts about cache packs, so I could inform you in this post. We have also found a way through archive.org to have the packs available for download through HTTP instead of bittorrent. Our plan is to get enough global cache packs online that users have a taste of what life is with a full cache, and then start releasing regional, high-detail cache packs. I will post in this thread once me or steven uploads a new cache pack to the site, so check back often.

To make this a bit easier to read I have formated it so blue is packs that are ready, red are cache packs that are in-progress, and italic is anything that hasnt been started.

Right now the following packs are online (Check worldwinddata.com for more info):
NLT Landsat 7 Layer 0 - 359 MB Packed - 363 MB Unpacked
NLT Landsat 7 Layer 1 - 1371 MB Packed - 1391 MB Unpacked
Global SRTM30US layers 0,1,2,3,4 - 17 MB Packed - 57 MB Unpacked
Global SRTM90 layers 0,1,2,3,4 - 226 MB Packed - 650 MB Unpacked
SRTM30US Layer 5 - 49 MB Packed - 140 MB Unpacked
SRTM30US Layer 6 - 172 MB Packed - 534 MB Unpacked
NLT Landsat 7 Layer 2 Southern Hemisphere - 1138 MB Packed - 1171 MB Unpacked
SRTM30US Layer 7 - 644 MB Packed - 2075 MB Unpacked
SRTM90 Layer 5 - 627 MB Packed - 1728 MB Unpacked


The following Packs are in line to be made (They will be shortly, dont worry) and then uploaded:
NLT Landsat 7 Layer 2 Northern Hemisphere - ???? MB Packed - 4076 MB Unpacked

To wet your appetite, here are some of the regional cache packs that will include all layers of NLT (0-4), that are on the list to be made:
Atlas Mountains
Atlantic Islands
River Nile I
River Nile II
Great Rift Valley I
Great Rift Valley II
Madagaskar
South Africa
South East Asia I
South East Asia II
South East Asia III
Jordan River Valley
Red Sea Mountain Range
Himilaya I
Himilaya II
Himilaya III
Japan
Sri Lanka
Taiwan
Mediterranean Islands
Caucasus
Pyrenees
The Alps
Iceland
Wadden Sea
Falklands
Serra da Mantiqueira
The Andes I
The Andes II
The Andes III
The Andes IV
Baja California
Costa Rica / Panama Range
Cuba
Guatamalan Mountains
Bahama's
Hisponiola
Coast Mountains I
Coast Mountains II
Rocky Mountains I
Rocky Mountains II
Grand Canyon
Sierra Nevada / California
Great Dividing Range
New Zealand
Hawaii
Tasmania

We will (hopefully) also be selling hard drives stuffed with data, and machines that are pre-setup to run as transpart caching proxy servers, also stuffed with data. (Most / all proceeds will go to WorldWindCentral, or other orginizations that are starved for money due to their genorosity). If you are interested in either of the above (purchasing equipment) please contact me at mmills@ceteranet.com.

Quoted post

Hey fOurtyFive,

I am new to WW and have been searching the forums for info on the meaning of NLT Layers. How many layers are there for NLT Landsat 7? Do these layers correlate to specific altitudes? I see there is Landsat 7 Visible and Community Landsat layers in Layer Manager. Do the files you have created contain both? I noticed there are more SRTM layers than NLT layers.

Thanks,
Wes

[f0urtyfive]

NLT Landsat 7 is in 5 layers (0,1,2,3,4) with 4 being most specific. I'm not sure if they're set for certain altitudes, my bet is its just starting altitude (where the first layer loads) divided by total ammount of layers, but its just a guess.

The files are just what they are labeled. The "community" landsat7 is a partial copy of the Onearth landsat7 data, and I dont have any cache packs for those at the moment (I'm working on it). Their are more SRTM layers, just because of the way it is split up, SRTM 30 has 10 layers, and SRTM 90 has 8 layers.

BTW, Just so you know, each layer is 4 times the size of the last one (approx), so if layer 1 is 1.3 GB, layer 2 is 5.2 GB, layer 3 is 20.8 GB and layer 4 is 80ish GB (Which is about correct actually).

I downloaded two times "NLT Landsat 7 Layer 1 - 1371 MB Packed - 1391 MB Unpacked" and both was always corrupted - have anybody same experience?

Originally posted by Tacmud@May 16 2005, 07:43 AM
I downloaded two times "NLT Landsat 7 Layer 1 - 1371 MB Packed - 1391 MB Unpacked" and both was always corrupted - have anybody same experience?

Quoted post

Tacmud,


Did you get what was called a "NSIS error" if so I had the same thing but the layer 7 file. You might want to do a search of the forum for NSIS. After 4 failed downloads I gave up and used my other computer to download.