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11.03.2019, 11:57
(This post was last modified: 11.03.2019, 11:58 by nordlicht.)
(11.03.2019, 11:04)tybern Wrote: but it's not always easy to find elevation european data in HGT
It's straight forward as HGT is NASA's standard format for the SRTM dataset:
https://dds.cr.usgs.gov/srtm/version2_1/SRTM1/
SRTM elevation data in other formats is converted from NASA data.
As one of several alternatives for Europe you have:
http://viewfinderpanoramas.org/dem1d.html
http://viewfinderpanoramas.org/Coverage%...s_org1.htm
At least Global Mapper can also write HGT files.
Grüße
Hans
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(11.03.2019, 11:04)tybern Wrote: So, it could be a good enhancement for future release to accept another elevation data format, like GeoTIFF or BIL/HDR.
You're invited to develop it and submit a pull request ;-)
Btw, I've never heard of these formats. Can you provide technical specs and download locations for it?
--
Christian
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11.03.2019, 14:21
(This post was last modified: 11.03.2019, 14:26 by tybern.)
(11.03.2019, 11:57)nordlicht Wrote: It's straight forward as HGT is NASA's standard format for the SRTM dataset:
https://dds.cr.usgs.gov/srtm/version2_1/SRTM1/
Not for Europe, only USA in 1" arc
(11.03.2019, 11:57)nordlicht Wrote: SRTM elevation data in other formats is converted from NASA data.
As one of several alternatives for Europe you have:
http://viewfinderpanoramas.org/dem1d.html
http://viewfinderpanoramas.org/Coverage%...s_org1.htm
Not so good, it is first release of SRTM1, no void-filled
This one contain SRTM1 Global version 3, void-filled in HGT format :
https://dwtkns.com/srtm30m/
At least Global Mapper can also write HGT files.
(11.03.2019, 11:57)nordlicht Wrote: You're invited to develop it and submit a pull request ;-)
I'm not Java developer, sorry... ;-)
(11.03.2019, 11:57)nordlicht Wrote: Btw, I've never heard of these formats. Can you provide technical specs and download locations for it?
BIL / HDR :
http://webhelp.esri.com/arcgisdesktop/9....ster_files
GeoTIFF :
https://www.geospatialworld.net/article/...lications/
SRTM1v3 in GeoTIFF :
https://gdex.cr.usgs.gov/gdex/. (needs an account, free)
(11.03.2019, 11:57)nordlicht Wrote: At least Global Mapper can also write HGT files.
I was talking about free softwares, like QGIS, Global Mapper is (too) expensive...
Thanks for your job, and best regards
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(11.03.2019, 14:21)tybern Wrote: Not so good, it is first release of SRTM1, no void-filled
Maybe you should read the accompanying text.
(11.03.2019, 14:21)tybern Wrote: This one contain SRTM1 Global version 3, void-filled in HGT format :
https://dwtkns.com/srtm30m/
No coverage north of 60°.
Grüße
Hans
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11.03.2019, 17:34
(This post was last modified: 11.03.2019, 17:35 by tybern.)
(11.03.2019, 16:14)nordlicht Wrote: (11.03.2019, 14:21)tybern Wrote: Not so good, it is first release of SRTM1, no void-filled
Maybe you should read the accompanying text.
"The resolution for SRTM Void Filled data is 1 arc-second for the United States and 3 arc-seconds for global coverage."
But, no matter, I've found all SRTM1v3 HGT files I needed, it's OK for me now...
Best regards
