[postgis-users] Newbie question #2 -- visualizing large datasets?

[Paul Ramsey]

What means "large" and for what purpose the "visualizing"?

If you draw 1M features onto your screen, they will either overlap  
hugely or each be about the size of a single pixel... that is, you  
will be suffering catastrophic information loss, and the  
visualization will only be showing a small percentage of the actual  
information encoded.

You'll find that uDig can render arbitrarily large data sets, but the  
note above pertains... beyond a certain size, your screen just can't  
show any more information.

P

On 10-Oct-06, at 11:16 AM, Jonathan Greenberg wrote:

> Is there a way to visualize massive databases of points or  
> polygons?  I'm
> talking data much larger than I've been able to display in arc or  
> grass
> environments using their basic vector coverage formats.  Thanks!
>
> --j
>
> -- 
> Jonathan A. Greenberg, PhD
> NRC Research Associate
> NASA Ames Research Center
> MS 242-4
> Moffett Field, CA 94035-1000
> Office: 650-604-5896
> Cell: 415-794-5043
> AIM: jgrn307
> MSN: jgrn307 at hotmail.com
>
>
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