Forms within forms?

[Banister Trevor]

1) Yes, you can even use them more than once.

2) Already a feature.
Variables called minx,miny,maxx,maxy exist do to what you need. You could
also write a Javascript snippet to parse out all 4 values, if you are a
masochist. :-) 

Trevor

> ----------
> From: 	Doug Nebert[SMTP:ddnebert at usgs.gov]
> Sent: 	Saturday, November 06, 1999 7:11 AM
> To: 	Stephen Lime
> Cc: 	mapserver-users at lists.gis.umn.edu
> Subject: 	Re: Forms within forms?
> 
> 
> 
> Stephen Lime wrote:
> > 
> > Doug: If I understand correctly. You want to zoom/pan until the user
> > has a view that make sense for them. Then they draw one more box
> > to define a query area (or use the entire area, correct? At that point
> > the area  of interest needs to be passed off to another package. There
> > are several ways to do it. One elegant way would be to add a control
> > to the form, a check box, that when checked would apply the aoi. When
> > checked a little function would do the conversion from imgbox to a
> > search extent (or if no box is on the sceen use the whole image extent)
> > and with that extent it could call the other search app using a URL and
> > replace the browser contents with that page. I can provide you with the
> > code to go from pixels to image coordinates, no problem. The whole
> > solution is about 20 lines of .js code. Cool huh.
> > 
> > Steve
> > 
> 
> Yes, that is precisely what needs to be done, but my 830 page 
> JavaScript book isn't very instructive ;) 
> 
> I was experimenting with the presentation of common variables 
> like [scale] and [mapext] yesterday and I can display them in 
> the current screen. Two questions: 1) can I use these variables 
> anywhere on the HTML page, i.e. can I use them to set a hidden 
> for a different FORM, like a common variable? and 2) how does 
> one dissect the variables such as [mapext]? I was assuming that 
> one could imply [mapext.xmin] but that doesn't work.
> 
> Doug.
> 
> -- 
> Douglas D. Nebert
> Clearinghouse Coordinator 
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