I am using gdal_translate convert USGS DEM data to geotiff ,and generate .ive file with a geotiff texture via osgdem.But I see a flat terrain with the texture...
4095
Ben Discoe
bdiscoe
Dec 3, 2005 6:20 am
Hi Lluís, I spent some time looking at your building data. For the most part, it is slow simply because it is very detailed, hence a high polygon count. For...
4096
Ben Discoe
bdiscoe
Dec 3, 2005 6:29 am
... Neke, You might want to ask on the GDAL or OSG mailing lists. The VTP reads USGS DEM directly, so it has no need of gdal_translate to do that. We also...
4097
Ben Discoe
bdiscoe
Dec 3, 2005 7:23 am
Hi folks, NASA has release a new version of SRTM, version 2, which has the water area flattened to solve the noise problem. The voids (gaps) remain. ...
4098
chris
dragonmagi@...
Dec 4, 2005 8:31 am
... I think tiles much smaller than a single country tile would be friendly to most peoples download limits and allows us to pick local areas of interest. ...
4099
Ben Discoe
bdiscoe
Dec 4, 2005 8:59 am
... Would you propose some tile size larger than 1x1 degree, but smaller than a country? How large would this 'local area of interest' be? The user might ...
4100
Adam Hauldren
nlightuk
Dec 4, 2005 4:27 pm
Quite frankly, Ben, I do not see the need to redistribute the data in any form, appreciated though your efforts are, as always! The 1 degreee tiles are between...
4101
Ben Discoe
bdiscoe
Dec 4, 2005 8:04 pm
Davide, From the correspondence i've received, tile per country is definitely a popular choice. Leaving smaller countries inside the tiles for larger ...
4102
David Rambo
dsr_jr
Dec 5, 2005 2:01 pm
In my experience, far better compression ratios can be achieved with software like WinRar or 7-Zip than using standard ZIP/GZIP files. Both support multiple...
4103
Vasile Craciunescu
vasile35
Dec 5, 2005 4:14 pm
... Ben, all, CGIAR (http://srtm.csi.cgiar.org/SELECTION/inputCoord.asp) has a nice interface for selecting&downloading SRTM data. Vasile...
4104
David Rambo
dsr_jr
Dec 5, 2005 4:38 pm
The CGIAR site has a good interface but the download speeds I'm getting are about 3 k/sec and I have a T-1. Torrent files would make this go a lot faster! ... ...
4105
Chris Hanson
erichammil
Dec 5, 2005 4:41 pm
... Yep. No rocket science in SRTMFill. ;) ... -- Chris 'Xenon' Hanson aka Eric Hammil | http://www.3DNature.com/ eric at logrus "I set the wheels in motion,...
4106
Vasile Craciunescu
vasile35
Dec 5, 2005 5:13 pm
I agree :). Nice idea but a slow server makes CGIAR almost unusable for large datasets. The interface design remains a strong point. That kind of options, plus...
4107
davide_borelli
Dec 5, 2005 7:18 pm
... software like WinRar or 7-Zip than using standard ZIP/GZIP files. Both support multiple operating systems. WinRar has an easier to use interface but 7-zip...
4108
Ben Discoe
bdiscoe
Dec 5, 2005 9:32 pm
... This is very true. One solution i found is bzip2 (http://www.bzip.org/). It is roughly as good as Rar or 7zip, and it is available a small, fast, easy to...
4109
David Rambo
dsr_jr
Dec 5, 2005 9:46 pm
Davide, thanks for telling us about WinImp (its quite fast and efficient and offers a good GUI). I did a little analysis below comparing several major...
4110
Ben Discoe
bdiscoe
Dec 5, 2005 10:20 pm
... I'm getting around 12 K/s from CGIAR today, which is unfortunate; from NASA's servers i get SRTM at 400 K/s. I see that CGIAR has arranged gap-filled SRTM...
4111
Ben Discoe
bdiscoe
Dec 5, 2005 10:42 pm
... Here's my testing results expanded a bit with winimp. Interestingly, winimp's algorithm "1" is the default, but it's not good for this SRTM data, whereas...
4112
Ben Discoe
bdiscoe
Dec 5, 2005 10:59 pm
David R., thanks for the detailed interesting testing results. They agree quite well with my own tests. ... I presume this is an Arc Binary Grid, not Ascii...
4113
David Rambo
dsr_jr
Dec 6, 2005 6:27 pm
Ben, I was happy I could contribute. Yes, I used a binary Arc grid. Today I tested 7-zip's ability to create '.bz2' files (I didn't notice at first 7-Zip could...
4114
davide_borelli
Dec 6, 2005 7:07 pm
... Wow! It seems Winimp is the best of them! When I wrote about the algorithm for text, I was talking about algorithm 2. You can change the default algorithm...
4115
Lluís Vicens
lluisvicens
Dec 7, 2005 9:23 am
Hi Ben, Thanks for your help. I'll try to 'simplify' the buildings layer with the aim to improve the scene. Thanks again for your time. Lluís...
4116
davide_borelli
Dec 7, 2005 11:05 pm
Hello, I downloaded all the files for Italy, I filled the gaps and I compressed them with Winimp algorithm 2. The result is: 84 uncompressed .hgt files:...
4117
Ben Discoe
bdiscoe
Dec 8, 2005 12:26 am
Folks, I finally found recovery software that was able to read most of the content of my failed hard drive, and spent around 8 hours yesterday merging the ...
4118
hannes_b@...
Dec 8, 2005 1:32 am
... great to hear! :)))))))))))))) i can imagine you do more backups in the future. ;) some companies really need a kick in the ass and better not to believe a...
4119
David Rambo
dsr_jr
Dec 8, 2005 3:55 pm
Ben, sorry to hear about your trouble. I had a similar issue before and I then I became a "backupaholic." I would suggesting using an external USB backup drive...
4120
Josh White
oaklandjosh
Dec 8, 2005 4:25 pm
Not that this is quite on topic, especially for my first post to the list, but here's a second vote for hard drive mirroring as backup method, especially when...
4121
Fredrik Ahl
fredrikahl
Dec 8, 2005 5:16 pm
A bit off topic too, but I really like your website Josh! Very minimalistic and easy to backup too ; ) Fredrik Scalo AB | www.scalo.se Stigbergsliden 5 / 7 tr...
4122
Josh White
oaklandjosh
Dec 8, 2005 8:02 pm
Oops, my main index page, I kind of forgot about it! Ben harasses me often about my utter disregard for updating my websites. Well deserved harassment, ...
4123
Tyler Mitchell
tymitche
Dec 13, 2005 6:00 pm
Hi all, Is anyone getting good-looking, high density tree cover in their models. I'm particularly interested in modeling forested landscapes and would love to...
