[postgis-users] Point cloud load

Nicklas Avén nicklas.aven at jordogskog.no
Thu Mar 8 23:46:18 PST 2012


What is the precision of your points?

Are they integer or double precision?

If it is just integer I think PostGIS might give you quite a big

Here is some thoughts (from Paul I guess?) on the topic.


On Fri, 2012-03-09 at 08:19 +0100, Ed Linde wrote:
> Hi All,
> I have this really massive 3D point cloud dataset (few TBs) that I
> would like to compute an intersection with OSM geometry. The problem
> now is that if its worth loading all of 
> this data into postgres/postgis and then indexing it? How long would
> it take? Or am I better of thinking of writing some C/C++ code that
> can compute some sort of a GRID on top of these cells and
> then possibly use GDAL libraries to compute an intersection? Problem
> being that I don't know what projection the point cloud is in and if I
> need to re-project etc... and postgis would 
> have been ideal for it. What do you guys recommend I do? 
> Cheers,
> Manu
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