<div>I recently used this tutorial to import some USGS terrain into a few of my OSGrid regions: <a href="http://www.virtualwhite.com/?p=100">http://www.virtualwhite.com/?p=100</a> </div><div>The process worked fairly well but I had some difficulty making a usable region as the scale I used was probably too small and the terrain was too coarse, but it does provide a nice scenery when viewed from nearby regions. I used the big island of Hawaii in one region and Santa Catalina in 2 regions; in order to make a usable terrain I would probably have to stretch them across many regions. Another problem I had was scaling in the vertical axis; in order to make a somewhat believable horizon and also match the seams with the undersea levels of the neighboring regions, I had to adjust the grayscale levels of the terrain images with a curve function in Photoshop. I did this by eye and did not attempt to make an accurate scale representation but rather a visually similar horizon. I'm not really happy with the results but I suspect one could achieve much better by further experiments with scaling.</div>
<div><br></div><div class="gmail_quote">On Thu, Jan 29, 2009 at 7:14 AM, Dave Coyle <span dir="ltr"><<a href="mailto:coyle%2Bopensim@knifejaw.com">coyle+opensim@knifejaw.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div class="Ih2E3d">On 2009-01-25 16:13:35 -0500, <a href="mailto:mail@tola.me.uk">mail@tola.me.uk</a> wrote:<br>
> As for OpenSim, I'm still exploring (though I'm running out of time). The Orcas<br>
> island example that Nebadon posted a link to is quite neat (or at least the<br>
> improved version linked to from the blog post) and the Berkeley simulation from<br>
> lidar images also provides a good example.<br>
<br>
</div>Another link which might be useful.. generating OpenSim terrain maps<br>
from USGS DEM data:<br>
<br>
<a href="http://www.ics.uci.edu/~lopes/terraingen/" target="_blank">http://www.ics.uci.edu/~lopes/terraingen/</a><br>
<font color="#888888"><br>
-Coyle<br>
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