imgext questions {Scanned}

[Siki Zoltan]

Hi Dylan,

To solve your problem I use an initial html page where only
hidden input fields are defined, where I have a hardcoded imgext,
and in the template file I use [mapext].
Bye
Zoltan

On Wed, 25 Aug 2004, dylan wrote:

> Greetings,
>
> After getting the queries on the maps to work, I have run into another
> problem with the imgext argument...
>
> I found that if i manually entered the map extent into the html template for
> my main map page: <input type="hidden" name="imgext" value="(numbers here)">
>
> i was able to load the map page from a url that contained no mapserver
> arguments. for example i could enter the URL of the map page, and click on
> "Refresh" and a map would be generated.
>
> here is that URL:
> http://169.237.34.168/~dylan/mapserver/ca_county/ca_statsgo_map.html
>
> ...however, the hardcoding of the imgext into the HTML file lead to very
> strange results from map queries, so i decided to replace the line:
>  <input type="hidden" name="imgext" value="(numbers here)">
>
> with:
>  <input type="hidden" name="imgext" value="[mapext]">
>
> I saw this on some of the example mapserver application pages...
>
> now, if i access the main map page without any mapserver arguments in the
> url, i get the error:
> loadForm(): Web application error. Not enough arguments for imgext.
>
> ...which would make sense, as i no longer specify an extent in the first
> loading of the main map page....
>
> is there any way to give the map HTML page an initial extent, and then allow
> it to change as the use zooms in and out of the map - thus allowing queries
> to function properly?
>
> thanks in advance for any ideas - surely there must be a simple answer that
> i am overlooking...
>
> --
> Dylan E. Beaudette
> Soil Science Graduate Group
> Dept. of Land, Air, and Water Resources
> University of California at Davis
>