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+--- Thread: Elevation 1" arc (/thread-2795.html)
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Elevation 1" arc - tybern - 06.03.2019
My setup (default) is "automatic" for the elevation data, and it seems to be SRTM3 (3" arc) by default.
How to enable SRTM1 (if I choose this option, nothing change...).
I say that, because, after downloading a track with elevation inside from SRTM1 source, if I try to change with Point -> elevation, it is not the same, and it should be...
Best regards
RE: Elevation 1" arc - routeconverter - 06.03.2019
(06.03.2019, 19:30)tybern Wrote: My setup (default) is "automatic" for the elevation data, and it seems to be SRTM3 (3" arc) by default.
How to enable SRTM1 (if I choose this option, nothing change...).
Automatic tries to use SRTM 1 first and falls back to these services
Quote: PRIORITY.put("Jonathan de Ferranti DEM 1", 1);If nothing is found, it tries to download SRTM 3 files.
PRIORITY.put("NASA SRTM 1", 2);
PRIORITY.put(J"Jonathan de Ferranti DEM 3", 3);
PRIORITY.put("NASA SRTM 3", 4);
PRIORITY.put("GeoNames", 5);
PRIORITY.put("Google Maps", 6);
So if you choose SRTM 1 then you should get the 1" arc data after a download (see Extras/Downloads)
RE: Elevation 1" arc - tybern - 08.03.2019
Thanks for the reply.
But if I choose SRTM1 or Ferrandi DEM 1, nothing appends... elevation is not set, and nothing in "download".
If I choose for example SRTM3, I see downloaded data (HGT files) in the .routeconverter/srtm3 directory, but if I choose SRTM1, nothing is downloaded.
Any idea ?
RE: Elevation 1" arc - routeconverter - 08.03.2019
Have a look at Extras/Downloads - is the download finished?
What's in the log file? Try Help/Send Error Report...
RE: Elevation 1" arc - tybern - 08.03.2019
With "extras/downloads", nothing started,
and in log, nothing too...
I have messages in logs if I choose SRTM3, but nothing if SRTM1.
RE: Elevation 1" arc - tybern - 08.03.2019
Well... I found the problem...
SRTM1 data are available only for USA from the server https://dds.cr.usgs.gov., and I'm in France.
And for ferranti1, access is forbidden.
I have SRTM1 data on my harddisk, in several formats, is there a way to use these files directly from my disk ?
Best regards
RE: Elevation 1" arc - routeconverter - 09.03.2019
(08.03.2019, 19:42)tybern Wrote: And for ferranti1, access is forbidden.
Try http://www.viewfinderpanoramas.org/Coverage%20map%20viewfinderpanoramas_org1.htm to download files. The coverage is not good.
(08.03.2019, 19:42)tybern Wrote: I have SRTM1 data on my harddisk, in several formats, is there a way to use these files directly from my disk ?
Yes. In the options:
RE: Elevation 1" arc - tybern - 09.03.2019
OK for the path elevation data, but which data format ? BIL, HGT, GeoTIFF, ... ?
RE: Elevation 1" arc - nordlicht - 10.03.2019
(09.03.2019, 19:15)tybern Wrote: OK for the path elevation data, but which data format ? BIL, HGT, GeoTIFF, ... ?
HGT.
RE: Elevation 1" arc - tybern - 11.03.2019
(10.03.2019, 18:59)nordlicht Wrote:(09.03.2019, 19:15)tybern Wrote: OK for the path elevation data, but which data format ? BIL, HGT, GeoTIFF, ... ?
HGT.
OK? I've found a source for SRTM1 in HGT, but it's not always easy to find elevation european data in HGT, because GIS software and converters can read HGT but not write them (it's in theory a read only format).
So, it could be a good enhancement for future release to accept another elevation data format, like GeoTIFF or BIL/HDR.
Best regards,