<div dir="ltr">All;<div>But if I convert the DEM or DSM to geotiff I still wont get back the hit order or the classification values will I? I will just have the data I have as processed in a different format. What I really need is the original LiDAR datasets if I am understanding this correctly.</div><div>As for DTM, DSM, and DEM, The province my municipality is in has decided that; DTM is a surface model which includes surface features + ground hits + breaklines. A DEM is ground hits, and a DSM as is the surface + features without added breaklines. I have found definitions online to support both view points on the matter; just an FYI my text books agree with you on the matter. I blame AutoCAD/CADD users for the discrepancies because, in my experience according to the EIT's and other CADD users, a DTM is all of the above and a DSM and DEM doesn't exist lol.</div><div>Thanks for the help on this;</div><div>Tyler</div><div> </div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Dec 11, 2017 at 6:31 AM, Richard McDonnell <span dir="ltr"><<a href="mailto:richard.mcdonnell@opw.ie" target="_blank">richard.mcdonnell@opw.ie</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
Morning Tyler.<br>
Nick is quite right. The files you have (ADF) are either DTM's or
DSM's. They are processed datasets.<br>
To fix the GRASS, SAGA issue, you can use GDAL to convert them to
GeoTiff, using the gdal_translate, which can be found in the
Processing toolbox and will do it for a few using batch (Note Point
one below).<br>
The other option would be to use the Script below to convert ADF to
GeoTiff.<br>
<div class="m_2783276228477596761moz-text-plain" style="font-family:-moz-fixed;font-size:14px" lang="x-unicode">
<pre><b>@echo off
SET startpath=%1
FOR /R %startpath% %%f IN (w001001.adf) do (call :translate "%%f")
pause
GOTO :eof
:translate
SET var=%~dp1
ECHO Translating %var%hdr.adf to %var:~0,-1%.tif
gdal_translate -co "NUM_THREADS=ALL_CPUS" -co "TILED=YES" -co "COMPRESS=LZW" %var%hdr.adf %var:~0,-1%.tif</b></pre>
</div>
The tool/script works in the following way.<br>
<ol>
<li><b>ADF Image names are the containing folder name</b><br>
</li>
<li>You must run this Batch in the Root folder for your ADFs (one
level up from the ADF files)<br>
</li>
<li>Paste/save the batch in the root folder<br>
</li>
<li>Open an instance of OSGeo4W Shell or its Linux counterpart
navigate to the root folder and run the script by typing <b><i>adf2tiff.bat</i></b></li>
<li>It will start to write the Tiff files into the root folder.</li>
</ol>
Hope this helps, or goes some way to helping.<br>
Regards<span class="HOEnZb"><font color="#888888"><br>
<br>
Richard.<br>
<div class="m_2783276228477596761moz-signature">-- <br>
<b><u>Richard McDonnell</u></b><br>
<b><small><small><small>GIS Specialist PgD GIS AssocSCSI</small></small></small></b><br>
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