CGI or Mapscript

[John Smith]

map object??

i've popped up using alert(this.extent) but depending on where you insert
that alert() in mapserv.js its value changes! i've looked through
http://maps.dnr.state.mn.us/tools/dbox/docs/jsdocs/ but can't get the values
contained in the map object. is there a dbox guru lurking on this list ;)?

i've also tried making my own zoombox but can't get the zoombox to follow
the cursor if the cursor is dragged from right-bottom to left-top in the
negative direction. any help with that?
i admit this is not strictly a mapserver question but then again there's no
dbox list.
jzs
On 10/18/06, Richard Greenwood <richard.greenwood at gmail.com> wrote:

> On 10/18/06, John Smith <jayzee.smith at gmail.com> wrote:
> > thks. yeah dbox is cool but i got another question- i'm trying to output
> > [imgext] and other cgi variables from dbox. how do i grab them? i'd
> really
> > want to use the backward and forward browser buttons. i think navigation
> is
> > way cooler that way.
>
> When you reload a whole page, you can get mapserver (on the server) to
> provide values for variables in [...] but with dBox you are usually
> not reloading the whole page from the server, you are usually only
> requesting a new map image. So the new extent needs to be calculated
> on the client (the browser).   Thanks to mapserv.js, this is no harder
> than requesting the new values from the server, and a lot more
> elegant. The extent, scale, size, etc. are contained in the map
> object, and are updated each time you make a new map request.
>
> But by not relaoding the whole page, the browser's back and forward
> buttons don't do what you would expect, and you can not book mark the
> URL. There are a couple thing you might try: you could maintain a
> "history" stack and add your own back & forward buttons to your user
> interface (ArcIMS, MapBuilder, and many others do this), or you could
> try pushing the current map parameters into the browser's history.
> Don't know what problems you'd encounter, but that always seemed more
> elegant to me. I just haven't gotten around to trying to implemet it.
>
> Rich
>
> --
> Richard Greenwood
> richard.greenwood at gmail.com
> www.greenwoodmap.com
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