CGI or Mapscript

[John Smith]

so mapserv()'s an object with cgi variables stored in array as properties?

well i insert the alert after line 50 and then it pops up 3 different values
on a simple reload. me thinks it might be easier if i can just get dbox to
spit out the variable values as get.

about my zoombox, it's a dhtml problem- the damn zoombox won't draw from
right-bottom to left-top >:(

jzs

On 11/2/06, Steve Lime <Steve.Lime at dnr.state.mn.us> wrote:
>
> He's refering to the Mapserv object. It may have been called something
> different earlier
> in its life.
>
> Yes, the extent can change and there are two reasons:
>
> 1) the user has explicitly triggered something that computes a new
> scale (e.g. a zoom, pan or
> box zoom)
>
> 2) that computed extent must be adjusted to the map size (imagine
> dragging a tall, thin zoom
> box)
>
> Depending on where you put alerts in mapserv.js you may see changes
> before or after these
> cases. I've not implemented accessor functions everywhere so you need
> to access the object
> members directly. For example, the extent member contains the extent of
> the currently
> displayed map.
>
> When you say your zoombox doesn't work. Is that a dBox zoombox or your
> own code? If I
> remember back to the days when I started dBox an error like that has to
> do with the order
> of coordinates handed to whatever is drawing the rectangle. Perhaps it
> is expecting
> minx. miny, maxx, maxy and your sending the reverse? Just a thought.
>
> Steve
>
> >>> John Smith <jayzee.smith at GMAIL.COM> 10/31/2006 4:22:23 PM >>>
> 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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