Shading Polygons and removing internal boundaries from shapefiles

Matt Pettis matt.pettis at THOMSON.COM
Mon Oct 23 08:58:10 PDT 2006


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?

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