[GRASSLIST:1190] SDTS support on grass5
ivankautter at hotmail.com
Sun Nov 26 15:10:04 EST 2000
I have heard that grass5 supports the SDTS format yet I see little evidence
of that on the maunal pages when it comes to raster formats data such as
DEM. While there seem to be commands for reading USGS data formats which
may be compliant with the SDTS format, the conversion process to the GRASS
compatible DEM is less than transparent. I have seen various examples on
how to convert SDTS to GRASS including SDTS utilies offered by the BLM which
would not compile (there has been little concrete assistance offered by this
listserv or any other on this issue) and the often quoted conversion process
for 240K 7.5 min UGSS DEMs with 30 meter resolution involving m.read.USGS
and conversion to ascii format and 90 degree rotations etc. to GRASS (which
I can no longer seem to locate) but not for 100K 7.5 min USGS DEMs with 10
meter resolution as well as m.dem.extract which may or may not be present on
GRASS 4.3 which I am running.
Can anyone offer some concrete suggestions on how to deal with SDTS format
data? Should I just switch to grass5 and if so, what specifically is the
support offered for this format on grass5? Additionally, if grass5 is
configured for floating point operations, does one need a CPU that supports
those type of operations to run grass5. I have a fairly standard Pentium
III processor. Is that sufficient?
Sorry for the barage of questions but I have been trying for some weeks to
resolve this issue and have found no suitable solutions offered anywhere.
Please help and thank you for your time and efforts.
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