[mapserver-users] Rosa Applet/ PHP Full Extent

[Hankley, Chip]

Bryan -

I'm assuming that you are using PHP MapScript...

the segment of my ROSA applet that refers to that button is:

    <PARAM NAME="TB_BUT_fullext_IMG" VALUE="/MapSymbols/FullExtOff.gif">
    <PARAM NAME="TB_BUT_fullext_IMG_PR" VALUE="/MapSymbols/FullExtOn.gif">
    <PARAM NAME="TB_BUT_fullext_HINT" VALUE="Zoom to Full Extent">
    <PARAM NAME="TB_BUT_fullext_INPUT" VALUE="submit">
    <PARAM NAME="TB_BUT_fullext_NAME" VALUE="CMD">
    <PARAM NAME="TB_BUT_fullext_VALUE" VALUE="FULL_EXTENT">

In my main PHP page, I run through a if, elseif, else statement looking at
the various values of the form variable CMD... when I get to the value of
"FULL_EXTENT" (what the form submits if I hit the above specified button) I
run the following.

elseif ($HTTP_POST_VARS["CMD"]=="FULL_EXTENT") {
  //set an extent array for the full extent specified in
  // the mapfile
  $Full_Extent = array($map->extent->minx, $map->extent->miny,
$map->extent->maxx, $map->extent->maxy);

  //Call the zoom function
  zoom($map, $Full_Extent);
}


// ZOOM FUNCTION
// 'Zoom' the map to a new extent based on a rectangle.
function zoom($map, $Extent) {
//Set the mapextent to the new Zoom extent
$map->setextent($Extent[0], $Extent[1], $Extent[2], $Extent[3]);
}

Chip

-----Original Message-----
From: Bryan Tolka [mailto:btolka at geointeractive.biz]
Sent: Monday, July 22, 2002 12:06 PM
To: mapserver-users at lists.gis.umn.edu
Subject: [mapserver-users] Rosa Applet/ PHP Full Extent


I would like to add a Full Extent button either in the Rosa Applet or 
under the legend. I am fairly new at most of this. Any help would be 
appreciated

-- 
Bryan Tolka
West Virginia University