Hi, Open Jump (www.openjump.org) seems to have a couple or menu selections for generalisation and it reads (and writes) shapefiles. I have never tried those tools myself, though.
-Jukka Rahkonen- > -----Alkuperäinen viesti----- > Lähettäjä: UMN MapServer Users List > [mailto:[EMAIL PROTECTED] Puolesta Jeff Dege > Lähetetty: 25. huhtikuuta 2007 17:26 > Vastaanottaja: [email protected] > Aihe: Re: [UMN_MAPSERVER-USERS] Simplified state outline data? > > We're not running PostGIS, we're not running PostgresSQL. > > Though we may start, if this turns out to be the easiest way > to handle these problems. > > > -----Original Message----- > > From: UMN MapServer Users List > > [mailto:[EMAIL PROTECTED] On Behalf Of Aaron Racicot > > Sent: Tuesday, April 24, 2007 7:18 PM > > To: [email protected] > > Subject: Re: [UMN_MAPSERVER-USERS] Simplified state outline data? > > > > 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 - [EMAIL PROTECTED] > > +----------------------------------------+ > > e c o t r u s t > > pobox 1614 > > langley wa 98260 > > www.ecotrust.org > > +----------------------------------------+ > > > > -----Original Message----- > > From: UMN MapServer Users List > > [mailto:[EMAIL PROTECTED] On Behalf Of Jeff Dege > > Sent: Tuesday, April 24, 2007 3:08 PM > > To: [email protected] > > 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? > > >
