Simplified state outline data?

[David William Bitner]

Although if you are not using Topology, this will likely lead to lots of
slivers between the states.

On 4/24/07, Aaron Racicot <aaronr at z-pulley.com> wrote:
>
> You can load [1] the data into PostGIS and use the simplify function [2]
> to
> create a simplified geometry, and even dump back to shapefile [3] if you
> wish.
>
> [1] - http://postgis.refractions.net/docs/ch04.html#id2707142
> [2] - http://postgis.refractions.net/docs/ch06.html#id2712912
> [3] - http://postgis.refractions.net/docs/ch04.html#id2707567
>
> A
>
>
> +----------------------------------------+
> Aaron Racicot - GIS Programmer
> 360.221.2441 - aaronr at ecotrust.org
> +----------------------------------------+
> e c o t r u s t
> pobox 1614
> langley wa 98260
> www.ecotrust.org
> +----------------------------------------+
>
> -----Original Message-----
> From: UMN MapServer Users List [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] On
> Behalf Of Jeff Dege
> Sent: Tuesday, April 24, 2007 3:08 PM
> To: MAPSERVER-USERS at LISTS.UMN.EDU
> Subject: [UMN_MAPSERVER-USERS] Simplified state outline data?
>
> We have an app that needs to generate a map with state outlines, but
> needs to keep the total amount of data as small as possible.
>
> Fortunately, we don't need precision, a rough approximation of the
> outlines is fine.
>
> Does anyone know of a source of approximate state outline data?
>
> Alternatively, does anyone know of a tool I can use to reduce the number
> of points in a geometric feature, while retaining the general outline?
> Something that would take a complicated boundary drawn with points every
> 100 meters and return a simplified boundary drawn with points every 10
> kilometers?
>



-- 
************************************
David William Bitner
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