The DDF files I have look like :<br>-rw-r--r--. 1 13123 13704 1947 Aug 22 2001 8333CATD.DDF<br>-rw-r--r--. 1 13123 13704 1416 Aug 22 2001 8333DQLC.DDF<br>-rw-r--r--. 1 13123 13704 4726 Aug 22 2001 8333DQHL.DDF<br>
-rw-r--r--. 1 13123 13704 2711 Aug 22 2001 8333DQCG.DDF<br>-rw-r--r--. 1 13123 13704 322 Aug 22 2001 8333DQAA.DDF<br>-rw-r--r--. 1 13123 13704 289 Aug 22 2001 8333DDSH.DDF<br>-rw-r--r--. 1 13123 13704 701 Aug 22 2001 8333DDOM.DDF<br>
-rw-r--r--. 1 13123 13704 345 Aug 22 2001 8333DDDF.DDF<br>-rw-r--r--. 1 13123 13704 316140 Aug 22 2001 8333CEL0.DDF<br>-rw-r--r--. 1 13123 13704 2718 Aug 22 2001 8333CATS.DDF<br>-rw-r--r--. 1 13123 13704 514 Aug 22 2001 8333XREF.DDF<br>
-rw-r--r--. 1 13123 13704 1719 Aug 22 2001 8333STAT.DDF<br>-rw-r--r--. 1 13123 13704 412 Aug 22 2001 8333SPDM.DDF<br>-rw-r--r--. 1 13123 13704 528 Aug 22 2001 8333RSDF.DDF<br>-rw-r--r--. 1 13123 13704 286 Aug 22 2001 8333LDEF.DDF<br>
-rw-r--r--. 1 13123 13704 358 Aug 22 2001 8333IREF.DDF<br>-rw-r--r--. 1 13123 13704 627 Aug 22 2001 8333IDEN.DDF<br>-rw-r--r--. 1 13123 13704 3288 Aug 22 2001 8333DQPA.DDF<br><br>I am only able to convert 8333CATD.DDF using gdal_translate<br>
gdal_translate -of XYZ 8333CATD.DDF 8333CATD.xyz<br>Input file size is 323, 468<br>0...10...20...30...40...50...60...70...80...90...100 - done.<br><br>Any ideas how I can get the raw x,y,z from all the .DDF files?<br><br>
<div class="gmail_quote">On Fri, Sep 7, 2012 at 11:51 AM, Ed Linde <span dir="ltr"><<a href="mailto:edolinde@gmail.com" target="_blank">edolinde@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi Nicolas,<br>Is there a GDAL tool that can take a SDTS raster in .DDF files and convert it to <br>raw x,y,z points?<br><br>Thanks,<br>Ed<br><br><div class="gmail_quote"><div class="im">On Fri, Sep 7, 2012 at 10:08 AM, Nicolas Ribot <span dir="ltr"><<a href="mailto:nicolas.ribot@gmail.com" target="_blank">nicolas.ribot@gmail.com</a>></span> wrote:<br>
</div><div><div class="h5"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
<br>
GDAL seems to handle the format: <a href="http://www.gdal.org/frmt_various.html#SDTS" target="_blank">http://www.gdal.org/frmt_various.html#SDTS</a>.<br>
(format specs: <a href="http://mcmcweb.er.usgs.gov/sdts/sdtsfaq.html" target="_blank">http://mcmcweb.er.usgs.gov/sdts/sdtsfaq.html</a>)<br>
<br>
So it could be converted into a postgis raster, or processed directly<br>
with GDAL/OGR.<br>
<br>
Nicolas<br>
<div><div><br>
On 7 September 2012 09:53, Ed Linde <<a href="mailto:edolinde@gmail.com" target="_blank">edolinde@gmail.com</a>> wrote:<br>
> Hi All,<br>
> I just downloaded a DEM file from <a href="http://geocomm.com" target="_blank">geocomm.com</a>, and its in a format that I do<br>
> not understand, I want to do a Delaunay triangulation on it to generate a<br>
> TIN.<br>
> I was wondering if someone here knows how I can go about getting the raw<br>
> x,y,z co-ordinates so I can go about triangulating this dataset? I know many<br>
> of<br>
> you might work with DEM and Raster datasets, so I thought I would ask here.<br>
> Some details below about the dataset that came in the .TXT file with it. It<br>
> was a ".DEM.SDTS.TAR.GZ" file which I untarred and it created a whole bunch<br>
> of<br>
> .DDF files. Any idea what I can do with these?<br>
><br>
> Thanks,<br>
> Ed<br>
><br>
> ITEM_TYPE: SDTS DEM - 7.5X7.5 GRID<br>
> CELL_NAME: Bearhead Mountain<br>
> STATE: WA<br>
> MRC_CODE: 47121-A7<br>
> BEST_AVAILABLE: T<br>
> SALEABLE: T<br>
> DATA_LEVEL: 2<br>
> X_RESOLUTION: 30<br>
> Y_RESOLUTION: 30<br>
> XY_UNITS: Meter<br>
> Z_RESOLUTION: 1.000<br>
> Z_UNITS: Meter<br>
> ORIG_LOAD_DATE: 13-SEP-01<br>
> CREATE_DATE: 13-SEP-01<br>
> PUBLICATION_DATE: 17-SEP-01<br>
> SOURCE_DATE: 1979<br>
> INSP_REV_DATE: 1997<br>
> INSP_REV_NAME: Inspection<br>
> HORIZONTAL_DATUM: North American Datum of 1927<br>
> PROJECTION: Transverse Mercator<br>
> ZONE: 10<br>
> VERTICAL_DATUM: NGVD 1929<br>
> DIGITAL_FORMAT_SPEC: DEM SDTS (Part 5: Raster Profile and Extensions (RPE))<br>
> STANDARDS_NAME: Standards for Digital Elevation Models 1995 Header with<br>
> Pre-1995 Content<br>
> PROCESS_STEP: DLG/Hypsography LINETRACE, LT4X Complex Linear<br>
> MIN_ELEVATION: 444<br>
> MAX_ELEVATION: 1859<br>
> SUSPECT_VOID: 0<br>
> PERCENT_VOID: 0<br>
> LARGE_CONTOUR_INT:<br>
> SMALL_CONTOUR_INT: 40<br>
> CONTOUR_UNITS: Foot<br>
> RMSE: 1<br>
> SAMPLE_SIZE: 30<br>
> NORTH_LATITUDE: 47.125000<br>
> SOUTH_LATITUDE: 47.000000<br>
> WEST_LONGITUDE: -121.875000<br>
> EAST_LONGITUDE: -121.750000<br>
><br>
><br>
><br>
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