ok so it sounds like they haven't yet figured a good way of doing this? At least that is <br>what I get from the blog. <br><br><div class="gmail_quote">On Fri, Mar 9, 2012 at 8:51 AM, Nicklas Avén <span dir="ltr"><<a href="mailto:nicklas.aven@jordogskog.no">nicklas.aven@jordogskog.no</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><br>
Sorry, I forgot the link:<br>
<a href="http://opengeo.org/technology/postgis/coredevelopment/pointclouds/" target="_blank">http://opengeo.org/technology/postgis/coredevelopment/pointclouds/</a><br>
<div class="HOEnZb"><div class="h5"><br>
On Fri, 2012-03-09 at 08:46 +0100, Nicklas Avén wrote:<br>
> Hallo<br>
><br>
> What is the precision of your points?<br>
><br>
> Are they integer or double precision?<br>
><br>
> If it is just integer I think PostGIS might give you quite a big<br>
> overhead.<br>
><br>
> Here is some thoughts (from Paul I guess?) on the topic.<br>
><br>
> /Nicklas<br>
><br>
><br>
> On Fri, 2012-03-09 at 08:19 +0100, Ed Linde wrote:<br>
> > Hi All,<br>
> > I have this really massive 3D point cloud dataset (few TBs) that I<br>
> > would like to compute an intersection with OSM geometry. The problem<br>
> > now is that if its worth loading all of<br>
> > this data into postgres/postgis and then indexing it? How long would<br>
> > it take? Or am I better of thinking of writing some C/C++ code that<br>
> > can compute some sort of a GRID on top of these cells and<br>
> > then possibly use GDAL libraries to compute an intersection? Problem<br>
> > being that I don't know what projection the point cloud is in and if I<br>
> > need to re-project etc... and postgis would<br>
> > have been ideal for it. What do you guys recommend I do?<br>
> ><br>
> ><br>
> > Cheers,<br>
> > Manu<br>
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</div></div></blockquote></div><br>