[mapserver-users] Fwd: full extent

[Mike Smith]

I borrowed this javascript function from the mapserver mail archive and 
it works for me.  Just put this code in the head block of your HTML page:

<SCRIPT language=JavaScript>
function goGlobal() {
  //select the Pan option so we won't zoom in when clicking "full extent"
  document.mapserv.zoomdir.value = 1;   // NOTE that my HTML form is 
named "mapserv"
  document.mapserv.zoomsize.value = 2;  // Use your form's name here 
after "document."
  //set image extent to the extent value in your map file
  // map extent is 33.709580 -4.999999 41.891010 5.682579
  document.mapserv.imgext.value = "30.109580 -4.999999 48.891010 6.082579";
  document.mapserv.imgbox.value = "-1 -1 -1 -1"; //used with the mapplet
  //set center pixel coordinates - my image size is 565 by 670
  document.mapserv.imgxy.value = "232.5 335.0";
  document.mapserv.submit();
}
</SCRIPT>

then call the function from any image (for example) using the "onClick" 
action like this:

<img src="global.jpg" onClick="goGlobal();">

Hope this helps,

Mike Smith

Steve Lime wrote:

>
> ------------------------------------------------------------------------
>
> Subject:
>
> full extent
> From:
>
> Rob Holloway <rholloway_1999 at yahoo.com>
> Date:
>
> Wed, 4 Sep 2002 11:14:46 -0700 (PDT)
> To:
>
> mapserver-info at lists.gis.umn.edu
>
>
>Hi
>
>I'm trying to create a zoom to full extent button
>without much success.  Does anyone have any
>suggestions/code to offer.  Thanks!
>
>Rob
>
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