The main special consideration is that if you don't also densify the lines to the resolution of the dem can can end up with a line that hops valleys and tunnels through ridges. Also, I don't know if we have a draping function. Was something I thought would be useful when I started futzing with the raster stuff, I guess because I have a thing for DEMs.<div>
<br></div><div>P.<br><br><div class="gmail_quote">On Tue, Mar 13, 2012 at 10:42 AM, Stephen V. Mather <span dir="ltr"><<a href="mailto:svm@clevelandmetroparks.com">svm@clevelandmetroparks.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div lang="EN-US" link="blue" vlink="purple">
<div>
<p class="MsoNormal">Hi All,<u></u><u></u></p>
<p class="MsoNormal"> Any special considerations for turning a 2D multi-line
geometry into a 3D geometry using a DEM as a RASTER within PostGIS? Has anyone
played in this arena?<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal">Thanks,<br>
Steve<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><u></u><img width="90" height="122" src="cid:image001.png@01CD011F.2EA79140" align="left" hspace="12" alt="http://www.clemetparks.com/images/esig/cmp-ms-90x122.png"><u></u><span style="font-size:14.0pt;font-family:"Arial","sans-serif";color:#006c56">Stephen
Mather<br>
</span><span style="font-family:"Arial","sans-serif";color:#006c56">Geographic
Information Systems (GIS) Manager<br>
</span><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:#006c56"><a href="tel:%28216%29%20635-3243" value="+12166353243" target="_blank">(216) 635-3243</a><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:#006c56"><a href="mailto:svm@clevelandmetroparks.com" target="_blank">svm@clevelandmetroparks.com</a><br>
</span><a href="http://www.clemetparks.com/" target="_blank"><span style="font-size:9.0pt;font-family:"Arial","sans-serif"">clevelandmetroparks.com</span></a><u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
<p class="MsoNormal"><u></u> <u></u></p>
</div>
</div>
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