Jacques Gelinas wrote:
> Second posting of this message. I'm not sure if it made it the
> first
> time.
It did show up the first time.
> I have downloaded a GTOPO30 dem data set from
> ftp://edcftp.cr.usgs.gov.
> Unfortunately Vertical Mapper was unable to translate it to a
> VM grid
> file. I suspect that unlike 7.5min Dem data the GTOPO30 dem
> data sets
> are not SDTS compliant. Has anyone been able to resolved this
> problem,
> or will I have to write an application to translate the
> original binary
> GTOPO30 data sets into an ASCII DEM format compatible with VM?
> Or have I
> overlooked something...
I think you will have to write something, but I thought that VM
comes with this data already on CD? Or maybe that's the 5-minute
arc-second data I'm thinking about. In any case, the GTOPO30 data
set is not stored in USGS DEM format, but something sort of
one-of-a-kind.
- Bill Thoen
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