Shading Polygons and removing internal boundaries from shapefiles

[Ravi]

Hi David,

I am not original poster but I have similar requirement.

I would like to shade polygons based on some data I have in a second 
.dbf file (or data in a mysql server).

Thanks for helping
Ravi


Fawcett, David wrote:
> Matt,
>  
> For question #1, are you talking about the .dbf that is part of the 
> shapefile, or a second .dbf that you would like to join to? 
>  
> For question #2, I would just suggest downloading the legislative 
> district shapefiles from the MN Legislative GIS Office:  
> http://www.gis.leg.mn/metadata/leg02.htm  (there is a download link in 
> the metadata)
>  
> David.
> 
>     -----Original Message-----
>     *From:* UMN MapServer Users List
>     [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] *On Behalf Of *Matt Pettis
>     *Sent:* Monday, October 23, 2006 10:58 AM
>     *To:* MAPSERVER-USERS at LISTS.UMN.EDU
>     *Subject:* [UMN_MAPSERVER-USERS] Shading Polygons and removing
>     internal boundaries from shapefiles
> 
>     Hi,
>      
>     I just installed MapServer because I want to do some graphical
>     shading of polygons that represent MN voting precints.  I have two
>     particular questions:
>      
>     1.  Is there an example mapfile or mapscript that helps me
>     understand how to shade polygons on a scale based upon a numeric
>     value in a .dbf file?
>      
>     2.  I want to graphically show Legislative districts, and I have
>     voting precint shapefiles.  How do I aggregate precints that belong
>     to a legislative district and make that one polygon, erasing the
>     lines that would be internal to this aggregated region?