[postgis-users] Dot Density idea

strk strk at keybit.net
Fri May 27 10:55:04 PDT 2011


On Fri, May 27, 2011 at 10:53:58AM -0600, John Abraham wrote:

> create or replace view dot_cnt as 
> select the_geom, polygon_id, (quantity_column/1000000)::integer as numpoints from original_data;
> 
> select dot_density('dot_cnt',
> 'the_geom',
> 'polygon_id',
> 'numpoints');
> 
> alter table dp rename to save_it_for_future_use;
> 
> And here are the functions:

It'd be nice if you could make your function accessible on the postgis
wiki, so it's easier to find it.

--strk;

  ()   Free GIS & Flash consultant/developer
  /\   http://strk.keybit.net/services.html



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