Google maps w/ satellite imagery

Ed McNierney ed at TOPOZONE.COM
Fri Apr 8 08:14:53 EDT 2005


Adam -

While I might agree with your conclusion, "slightly" better is probably
not the case.  Prebuilt images can be quite a bit faster and can also be
of better quality, since any resampling can be done slowly and well.

In the first release of TopoZone, the "map server" that delivered the
pre-built tiles was six lines of code!

        - Ed

Ed McNierney
President and Chief Mapmaker
TopoZone.com / Maps a la carte, Inc.
73 Princeton Street, Suite 305
North Chelmsford, MA  01863
Phone: +1 (978) 251-4242
Fax: +1 (978) 251-1396
ed at topozone.com  

-----Original Message-----
From: UMN MapServer Users List [mailto:MAPSERVER-USERS at LISTS.UMN.EDU] On
Behalf Of Ryan, Adam
Sent: Wednesday, April 06, 2005 8:33 PM
To: MAPSERVER-USERS at LISTS.UMN.EDU
Subject: Re: [UMN_MAPSERVER-USERS] Google maps w/ satellite imagery

I've got to put my two cents of disagreement in on this one.  Ask your
users if they'll accept limiting their maps to a dozen pre-set scales in
exchange for slightly better performance.  I wouldn't.

Cheers,

Adam


> -----Original Message-----
> From: Mike Davis [mailto:mike.and.kerry at GMAIL.COM]
> Sent: Wednesday, April 06, 2005 5:25 PM
> To: MAPSERVER-USERS at LISTS.UMN.EDU
> Subject: Re: [UMN_MAPSERVER-USERS] Google maps w/ satellite imagery
>
>
> I am curious who on the list has been using an AJAX approach to 
> mapping with mapserver.
>
> As users of my web applications discover google maps and the speed at 
> which it delivers imagery, I am starting to hear rumblings about the 
> performance of our in-house applications.
>
> Tools or techniques to tile imagery and pre-cache on the client would 
> be especially useful.
>
> -Mike
>
> On Apr 6, 2005 5:20 AM, Fawcett, David <David.Fawcett at state.mn.us> 
> wrote:
> > Perhaps there is an opportunity (formal or informal) at the
> MUM 2005
> > for people to show how they have been using an AJAX-esque
> approach to
> > MapServer applications.
> >
> > David Fawcett
> > Minnesota Office of Environmental Assistance 
> > david.fawcett at moea.state.mn.us 651.215.0200
> >
> >
> > -----Original Message-----
> > From: UMN MapServer Users List
> > [mailto:MAPSERVER-USERS at LISTS.UMN.EDU]On
> > Behalf Of Pascoe,Tim [Burlington]
> > Sent: Wednesday, April 06, 2005 8:01 AM
> > To: MAPSERVER-USERS at LISTS.UMN.EDU
> > Subject: Re: [UMN_MAPSERVER-USERS] Google maps w/ satellite imagery
> >
> > Take a look at:
> >
> > http://adaptivepath.com/publications/essays/archives/000385.php
> >
> > I believe this is the technology behind the Google Maps interface.
> >
> > Tim
> >
> > -----Original Message-----
> > From: UMN MapServer Users List
> [mailto:MAPSERVER-USERS at lists.umn.edu]
> > On Behalf Of Charlton Purvis
> > Sent: April 6, 2005 8:18 AM
> > To: MAPSERVER-USERS at lists.umn.edu
> > Subject: [UMN_MAPSERVER-USERS] Google maps w/ satellite imagery
> >
> > For those of you who haven't seen it, you're missing out.
> > http://maps.google.com has satellite imagery that performs 
> > spectacularly. Enter an address; the satellite option is a
> link in the
> > upper RH corner of
> > that page.
> >
> > Even the dingbat public is tuned in to the site,
> >
> http://www.cnn.com/2005/TECH/internet/04/05/go>
ogle.maps.ap/index.html.
> >
> > Charlton
> >
>



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