[mapserver-users] Is there a way to add a single click zoom button

[boesiii]

PG


I added the script and the button control but I am not sure about the third
item you mentioned.  I added the lines "<input type="hidden" name="imgxy"
value="[center]" />
<input type="hidden" name="zoom" value="2" />" in the mapserver variables
section but when I click the button nothing happens?

What is the problem?




Pietro Giannini wrote:
> 
> Yes, but using some javascript in template html.
> 
> if you want to zoomin 2x:
> 
> <script language="JavaScript">
>  function zoom2x()
>  {
>  	document.forms['mapserv'].imgxy.value = [mapwidth]/2 + " " +
> [mapheight]/2;
>  	document.forms['mapserv'].zoom.value = 2;
>  	document.forms['mapserv'].submit();
>  }
> </script>
> 
> called from a button control:
> <input type="button" value="zoom in 2 X" onclick="javascript:zoom2x();">
> 
> assuming that you have an hidden field named 'imgxy' and a control
> (select, radio, another hidden fiedl...) named 'zoom' in a form named
> 'mapserv'.
> 
> ciao
> .......................pg
> 
> -- 
> Pietro Giannini
> Bytewise srl - Area GIS
> 41°50'38.58"N 12°29'13.39"E
> 
> 
> 
> On Mer, Gennaio 14, 2009 18:34, boesiii wrote:
>>
>> by just using the map file and html template file.
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> 
> 
> 
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