map performance

[Rahkonen Jukka]

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:MAPSERVER-USERS at LISTS.UMN.EDU] Puolesta Ben Madin
> Lähetetty: 11. joulukuuta 2006 6:16
> Vastaanottaja: MAPSERVER-USERS at LISTS.UMN.EDU
> 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 <boice at RUNSKIP.COM>
> > 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
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> ben at remoteinformation.com.au
> 
> 
> 
> 
> 
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