+- RouteConverter Forum (https://forum.routeconverter.com)
+-- Forum: Users (https://forum.routeconverter.com/forum-17.html)
+--- Forum: English: Discussions (https://forum.routeconverter.com/forum-12.html)
+--- Thread: Elevation 1" arc (/thread-2795.html)
Pages:
1
2
RE: Elevation 1" arc - nordlicht - 11.03.2019
(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%20map%20viewfinderpanoramas_org1.htm
At least Global Mapper can also write HGT files.
RE: Elevation 1" arc - routeconverter - 11.03.2019
(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?
RE: Elevation 1" arc - tybern - 11.03.2019
(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%20map%20viewfinderpanoramas_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/9.2/index.cfm?TopicName=BIL,_BIP,_and_BSQ_raster_files
GeoTIFF : https://www.geospatialworld.net/article/geotiff-a-standard-image-file-format-for-gis-applications/
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
RE: Elevation 1" arc - nordlicht - 11.03.2019
(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°.
RE: Elevation 1" arc - tybern - 11.03.2019
(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-filledMaybe 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