[postgis-users] How retrieve number of points based on scale value?
Maurizio Napolitano
napo at itc.it
Fri Mar 12 03:57:07 PST 2004
> I couldn't seen the java map,
The effect is very impressive
> but I suspect this is something
> I've already handled to do.
Good!
> I made a stored procedure which
> transformed a postgis geometry making each of its points fall
> on a grid defined by its origin and cell size. Adiacent points
> falling an the same cell are merged togheter thus making the
> geometry smaller (in points and size) as you enlarge the 'grid'.
> It's like mapsever's raster-based reduction.
>
> Is this what you're looking for ?
mmm ... probaly ...
Do you can send me your procedure?
Do you know OpenENV?
If you load a geotiff, with OpenENV, the software manage the image
by reduce the number of pixel for each scale.
Thanks!
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