[Mapserver-users] Zoom In to a defined area

[palle@mail-online.dk (Palle Due Larsen)]

You should name your <select> imgbox, not viewarea. Also separate your
your coordinates by +, not ,.

Best regards

Palle Due Larsen
Carl Bro GIS&IT


-----Original Message-----
From: "Jeff L." <nf10@hotmail.com>
To: mapserver-users@lists.gis.umn.edu
Date: Mon, 01 Sep 2003 20:30:31 +0000
Subject: [Mapserver-users] Zoom In to a defined area

> Hi,
> 
> By knowing the map coordinates of a specific area (xMin, yMin, xMax
> and 
> yMax), i would like to zoom in to such area. I have a combo box with
> defined 
> areas to zoom in, i’m using CGI and JavaScript to change map extents,
> but no 
> success so far. My question would be how to pass the map extents and
> may be 
> the center of the image is also required to change? Here is my code
> snippet:
> ....
> 
> <SCRIPT LANGUAGE="JavaScript"><!--
> 
> function AreaSelected()
> {
>     if (document.forms[0].ViewArea.selectedIndex != 0 &&
> 	 document.forms[0].ViewArea.selectedIndex !=1)
>     	document.forms[0].submit();
> }
> 
> //--></SCRIPT>
> 
> <form method=GET action="[program]" name=myform>
> 
> ....
> 
> <SELECT NAME="ViewArea"  onChange="AreaSelected()">
> <OPTION>Go to</OPTION>
> <OPTION>- - - - - - - - - - - - - </OPTION>
> <OPTION VALUE="-180,45,180,90">Area 1</OPTION>
> <OPTION VALUE="-180,0,180,45">Area 2</OPTION>
> </SELECT >
> 
> ....
> 
> <input type="hidden" name="imgxy" value="299.5 299.5">
> <input type="hidden" name="imgext" value="[mapext]">
> ....
> </form>
> 
> 
> Any help is appreciated
> 
> Jeff Lacoste
> 
> _________________________________________________________________
> Protect your PC - get McAfee.com VirusScan Online  
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> 
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> http://lists.gis.umn.edu/mailman/listinfo/mapserver-users

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From Armin Burger <armin.burger@libero.it>  Mon Sep  1 23:22:56 2003
From: Armin Burger <armin.burger@libero.it> (Armin Burger)
Date: Mon, 1 Sep 2003 23:22:56 +0100
Subject: [Mapserver-users] Zoom In to a defined area
Message-ID: <20030901212327.LOKJ5266.viefep13-int.chello.at@libero.it>

Jeff,

try something like

<SELECT NAME="mapext"  onChange="AreaSelected()">
 <OPTION VALUE="">Go to</OPTION>
 <OPTION VALUE="">- - - - - - - - - - - - - </OPTION>
 <OPTION VALUE="-180 45 180 90">Area 1</OPTION>
 <OPTION VALUE="-180 0 180 45">Area 2</OPTION>
</SELECT >

Armin


> Hi,

> By knowing the map coordinates of a specific area (xMin, yMin, xMax and
> yMax), i would like to zoom in to such area. I have a combo box with
defined
> areas to zoom in, i’m using CGI and JavaScript to change map extents,
but no
> success so far. My question would be how to pass the map extents and
may be
> the center of the image is also required to change? Here is my code
snippet:
> ....

> <SCRIPT LANGUAGE="JavaScript"><!--

> function AreaSelected()
> {
>     if (document.forms[0].ViewArea.selectedIndex != 0 &&
> 	 document.forms[0].ViewArea.selectedIndex !=1)
>     	document.forms[0].submit();
> }

> //--></SCRIPT>

> <form method=GET action="[program]" name=myform>

> ....

> <SELECT NAME="ViewArea"  onChange="AreaSelected()">
> <OPTION>Go to</OPTION>
> <OPTION>- - - - - - - - - - - - - </OPTION>
> <OPTION VALUE="-180,45,180,90">Area 1</OPTION>
> <OPTION VALUE="-180,0,180,45">Area 2</OPTION>
> </SELECT >

> ....

> <input type="hidden" name="imgxy" value="299.5 299.5">
> <input type="hidden" name="imgext" value="[mapext]">
> ....
> </form>


> Any help is appreciated

> Jeff Lacoste

> _________________________________________________________________
> Protect your PC - get McAfee.com VirusScan Online
> http://clinic.mcafee.com/clinic/ibuy/campaign.asp?cid=3963

> _______________________________________________
> Mapserver-users mailing list
> Mapserver-users@lists.gis.umn.edu
> http://lists.gis.umn.edu/mailman/listinfo/mapserver-users