Hi, OpenJUMP www.openjump.org has generalisation tool, at least the daily built version. It might be worth a try.
-Jukka- > -----Alkuperäinen viesti----- > Lähettäjä: UMN MapServer Users List > [mailto:[EMAIL PROTECTED] Puolesta Ben Madin > Lähetetty: 11. joulukuuta 2006 6:16 > Vastaanottaja: [email protected] > Aihe: Re: [UMN_MAPSERVER-USERS] map performance > > G'day Boice, Steve et al., > > We are having a similar problem, but we need to be able to > generate international maps by state level for a number of > categories and different time periods... We are using a large > (90MB) shapefile, but I was wondering about trying to reduce > it for the 600 x 300 window we display it in! We do have a > country boundaries only layer, but for some countries (ie > Australia, Canada) the state level polygons are bigger than > many countries (ie in Europe), so it would be nice to be able > to have the option to show states uniformly across the planet. > > Because it has been taking so long to generate the maps, we > are only displaying them in lat long now, but we would like > to be able to go back to the ortho projection we were using > before, as it looked much smarter. > > Can you recommend any tools to reduce the resolution / size > of a shapefile? > > cheers > > Ben > > > > From: boice tomlin <[EMAIL PROTECTED]> > > Date: 9 December 2006 5:45:21 AM > > Subject: Re: map performance > > > > > > > > Steve, > > > > Reduced resolution datasets are the trick.... I just increased > > performance 10 fold by substituting a reduced polygon shapefile. > > > > thanks for your help on both fronts. > > > > -boice > > > > > > -- > > Ben Madin > REMOTE INFORMATION > > t : +61 8 9192 5455 > f : +61 8 9192 5535 > m : 0448 887 220 > Broome WA 6725 > > [EMAIL PROTECTED] > > > > > > Out here, it pays to know... >
