A demo of Generating Google Tiles With mapserver

[Schuyler Erle]

Jon,

One thing I noticed is that at certain scales your map tiles appear
to overlap somewhat. I had this problem with my first essays at this
when Google Maps came out. I suspected at the time that it was because
my map was unprojected - what are your tiles projected in?

I have been working on an Ajax front-end with a Python MapScript
backend.

    http://geocoder.us/surfer/docs/

I will be releasing this the source code to this very shortly. Adding
tiling is on my to-do list (as is drag-to-pan). Recommendations and
tips are welcome.

SDE


* On  7-May-2005 at 10:19AM PDT, Jon Saints said:
> True the server side could be implemented in any
> language that talks mapscript and xml.
>
> The front end is an simple xmlHTTPrequest javascript
> client.
>
> As far as labeling I would like to generate label
> points for polygons and render the labels as DHTML on
> the client side.
>
> I wanted to say a special thanks to Sean Gillies and
> all others for their work creating and documenting
> mapscript.
>
> Jon
>
>
>
> --- Sean Gillies <sgillies at FRII.COM> wrote:
> > Thanks for being a good sport about my Python vs
> > Perl joke :)
> >
> > I'm sure there would be a lot of javascript that
> > could be shared
> > regardless of the mapscripting language.
> >
> > Sean
> >
> > On May 7, 2005, at 10:32 AM, Stephen Woodbridge
> > wrote:
> >
> > > Sean,
> > >
> > > Yeah, that is exactly what I meant! :) Jon has
> > done an great job of
> > > getting something working, while I have only
> > generated a lot of really
> > > BIG numbers. I'd rather be putting my time to
> > adding features to the
> > > cool work Jon has done instead following in his
> > foot steps and probably
> > > not doing it as well.
> > >
> > > -Steve
> > >
> > > Sean Gillies wrote:
> > >> Steve,
> > >>
> > >> Don't you mean "help to obfuscate it"? :)
> > >>
> > >> Sweet work, Jon!  Yves Moisan and I need to talk
> > to you about whether
> > >> we can use this code in our Plone mapping
> > product.
> > >>
> > >> cheers,
> > >> Sean
> > >>
> > >>
> > >> On May 7, 2005, at 10:18 AM, Stephen Woodbridge
> > wrote:
> > >>
> > >>> Jon,
> > >>>
> > >>> Very nice demo and performace is very good also.
> > I would be
> > >>> interested
> > >>> in converting it to perl/mapscript and help to
> > improve it.
> > >>>
> > >>> -Steve W.
> > >>>
> > >>> Jon Saints wrote:
> > >>>
> > >>>> I have implemented a demo using python
> > mapscript and
> > >>>> mapserver that gives very basic functionality
> > simillar
> > >>>> to google maps.
> > >>>>
> > >>>> I do not pre-render maps at the various scales.
> > >>>> mapscale are rendered on the fly and the
> > indiviual
> > >>>> tile images are sent directly to the user -
> > never
> > >>>> saved on disk.  I know this will cause problems
> > for
> > >>>> labeling, but there may be a way around this
> > with some
> > >>>> DHTML tricks.
> > >>>>
> > >>>> Please remember that this demo is running off
> > of my
> > >>>> desktop computer over a wifi connection.
> > performance
> > >>>> may be very slow and my poor desktop might
> > crash with
> > >>>> too many hits. I offer only a proof of concept
> > and
> > >>>> welcome coments from the list.
> > >>>>
> > >>>> Right now the demo only works in Mozilla
> > Firefox (on
> > >>>> Win, Linux and OsX).  If you zoom in far enough
> > on the
> > >>>> washington DC map you will see aerial photos.
> > >>>>
> > >>>>
> > >>>> Click the "START HERE" button to start the app.
> > >>>>
> > http://216.15.56.185:8080/jons/indon/client/test.xul
> > >>>>
> > >>>> Thanks
> > >>>> JOn
> >