Nicolas, thank you for your help. I have imported a set of points
using a python to psql script which filled a GeometryColumn using the
ST_MakePoint() function.
Now I would like to visualize the points using uDig. Since the set
imported is comprised of around 10 million points, drawing each point
is not possible. What I would like to do is create and just draw a
bounding box of the set of points. This way I could compare it to
another set of points in respect of the position to each other.
The thing I do not know yet is how to do it using postgis , i.e. which
commands I need. Any tips on how I could go about visualizing two
datasets of scattered points?
Regards,
Jan
Hi,
A 3D point seems to be the candidate.
You could also keep x, y, z as numeric columns to perform some
computation on the altitude, as postgis does not support 3d geometries
in all its functions.
You will be able to build the points using the st_makePoint(...) function.
Nicolas
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