Hi, GDAL seems to handle the format: http://www.gdal.org/frmt_various.html#SDTS. (format specs: http://mcmcweb.er.usgs.gov/sdts/sdtsfaq.html)
So it could be converted into a postgis raster, or processed directly with GDAL/OGR. Nicolas On 7 September 2012 09:53, Ed Linde <edoli...@gmail.com> wrote: > Hi All, > I just downloaded a DEM file from geocomm.com, and its in a format that I do > not understand, I want to do a Delaunay triangulation on it to generate a > TIN. > I was wondering if someone here knows how I can go about getting the raw > x,y,z co-ordinates so I can go about triangulating this dataset? I know many > of > you might work with DEM and Raster datasets, so I thought I would ask here. > Some details below about the dataset that came in the .TXT file with it. It > was a ".DEM.SDTS.TAR.GZ" file which I untarred and it created a whole bunch > of > .DDF files. Any idea what I can do with these? > > Thanks, > Ed > > ITEM_TYPE: SDTS DEM - 7.5X7.5 GRID > CELL_NAME: Bearhead Mountain > STATE: WA > MRC_CODE: 47121-A7 > BEST_AVAILABLE: T > SALEABLE: T > DATA_LEVEL: 2 > X_RESOLUTION: 30 > Y_RESOLUTION: 30 > XY_UNITS: Meter > Z_RESOLUTION: 1.000 > Z_UNITS: Meter > ORIG_LOAD_DATE: 13-SEP-01 > CREATE_DATE: 13-SEP-01 > PUBLICATION_DATE: 17-SEP-01 > SOURCE_DATE: 1979 > INSP_REV_DATE: 1997 > INSP_REV_NAME: Inspection > HORIZONTAL_DATUM: North American Datum of 1927 > PROJECTION: Transverse Mercator > ZONE: 10 > VERTICAL_DATUM: NGVD 1929 > DIGITAL_FORMAT_SPEC: DEM SDTS (Part 5: Raster Profile and Extensions (RPE)) > STANDARDS_NAME: Standards for Digital Elevation Models 1995 Header with > Pre-1995 Content > PROCESS_STEP: DLG/Hypsography LINETRACE, LT4X Complex Linear > MIN_ELEVATION: 444 > MAX_ELEVATION: 1859 > SUSPECT_VOID: 0 > PERCENT_VOID: 0 > LARGE_CONTOUR_INT: > SMALL_CONTOUR_INT: 40 > CONTOUR_UNITS: Foot > RMSE: 1 > SAMPLE_SIZE: 30 > NORTH_LATITUDE: 47.125000 > SOUTH_LATITUDE: 47.000000 > WEST_LONGITUDE: -121.875000 > EAST_LONGITUDE: -121.750000 > > > > _______________________________________________ > postgis-users mailing list > postgis-users@postgis.refractions.net > http://postgis.refractions.net/mailman/listinfo/postgis-users > _______________________________________________ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
