Remove small polygons

[Leonardo Andrade]

Hi,

IMHO, I think the most efficient way is to solve your problem is as 
follows:

1. export the data table do postgis (or another spatial db)
2. create another database table with only the largest polygons derived 
from the original table
3. in the mapfile, create different classes for each table appearing on 
diferent scales using the MINSCALE and MAXSCALE tags.



Leonardo Andrade
Novageo Solutions


Thomas Z. wrote:
> Hi List,
>
> I hope someone can help me. 
> I have a town layer with lot of polygons but there is no information inside 
> how big are the polygons. 
> There is the town name and a part of information.
> Is there a way to tell the mapserver to draw only polygons they are bigger then
> 5x5 pixel, or the area is bigger then 25 pixel ?
>
> best regards 
> Thomas
>
>