[Mapserver-users] have a dynamic map file?

[Chen Fu]

Thank for your suggestion :)

But in fact, i try to display several images at the
same time for maybe the user like to have several
images nearby to describe a larger area. Maybe we can
leave ten layers (the largest number) for raster and
show only some of them according to the user's
selection.

But do we have a easy way to write some php or cgi to
generate new map? Or is there something like #include
in map file to link another file which i can store the
dynamic layers inside and regenerate it frequently?



 --- Oliver Wesp <wesp at gdv.com> µÄÕýÎÄ£º> 
> Hi,
> you can define a static raster layer in your mapfile
> and if the user 
> selects one of the tiffs it's possible to change the
> DATA value of this 
> layer dynamically via CGI. The form variable should
> look like this:
> 
> <input type="hidden" name="map_LAYERNAME_data"
> value="path/to/tif">
> 
> That way you can display any of your tiffs without
> generating a new map 
> file. All you need is client side processing of the
> pathnames.
> 
> hope that helps.
> Oliver
> 
> P.S. If you're using 3.7 you need to define
> DATAPATTERN in order to change 
> the datasource of a layer. There was a post a few
> days ago (02/27) from Jan 
> Hartmann which explains the use of DATAPATTERN.
> 
> 
> At 18:50 06.03.2003 +0800, =?gb2312?q?Chen=20Fu?=
> wrote:
> >Hi!
> >
> >I am using mapserver as server to browse satellite
> >image quickview (resampled image) . my question is
> how
> >to have a dynamic map file.
> >
> >In demos of mapserver, we only select some layers
> that
> >are already described in map file, and [layers]
> tell
> >cgi to show some and hide others.
> >
> >Because there is thousands of images, and in
> mapserver
> >one image must be a layer, i must dynamic generate
> a
> >new map file to tell mapserver which tiff must be
> >catched to render. But i dont know how to do it
> yet.
> 
> -- 
> Dipl.-Geogr. Oliver Wesp
> Gesellschaft für geografische Datenverarbeitung
> Binger Strasse 49-51
> D-55218 Ingelheim
> fon: +49 6132 714818
> fax: +49 6132 714828
> http: <http://www.gdv.com>www.gdv.com
>  

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