php3-expression and zoom

[Christian]

Hi,
this answer was damn fast! Many thanks, I try it tomorrow when I am back in 
the office.
This helps a lot!
Has there anybody an example for the zooming-buttons, too? I haven't found 
out from the gmap-example.

Can I even set a dynamic label  to the regions selected by "expression"?


>  Here is an example that dynamically creates classes
>on a certain layer (assumes here that $gpoMap is the
>map object and there is a layer called classified in
>the .map file) :
>
>$poLayer = $gpoMap->getlayerbyname("classified");
>
>$poLayer->set("classitem", "VW");
>
>$nColorId = $gpoMap->addColor(255, 0, 0);
>
>$poClass = ms_newClassObj($poLayer);
>
>$poClass->set("color", $nColorId);
>
>$poClass->setExpression("069");

What is the maximum number of classes and what is the practical maximum so 
that the map is served in time?
I like to run this within a loop and in the worst case I would have more 
than 5000,  (all prefixes of germany).


--
Christian

--
christian