[mapserver-users] How to keep map from zooming/panning when I refresh?

[Martin, Daniel]

Whoops, I messed up the JavaScript.  This is a correction, note ".value" is
added:

function UpdateMap() {
    document.forms.mapserv.zoomdir.value = "";
    document.mapserv.submit();   
}


-----Original Message-----
From: Martin, Daniel 
Sent: Thursday, September 05, 2002 11:47 AM
To: 'Mike Smith'; mapserver-users at lists.gis.umn.edu
Subject: RE: [mapserver-users] How to keep map from zooming/panning when
I refresh?


I think this will work:

function UpdateMap() {
    document.forms.mapserv.zoomdir = "";
    document.mapserv.submit();   
}

Or perhaps I'm missing something.  I do exactly what you say in my client,
but I use Rosa to control zooming and panning, so it is a bit different.

-Dan

-----Original Message-----
From: Mike Smith [mailto:nospam at cnrit.tamu.edu]
Sent: Thursday, September 05, 2002 10:01 AM
To: mapserver-users at lists.gis.umn.edu
Subject: [mapserver-users] How to keep map from zooming/panning when I
refresh?


Hello,

    I've got my page working pretty well now thanks to lots of 
Javascript code I borrowed from this mailing list, but I've still got 
one problem that I can't seem to find a solution for in the archives. 
 I've got my page set up so that the various layers that are available 
to view are in a list on the right-hand side of the page with checkboxes 
next to them.  And since I wanted the behavior of the page to imitate 
ArcView as much as possible (because most of my users are used to that 
interface) I put in a little javascript function that automatically 
reloads the page whenever they check or uncheck a layer (without having 
to click a "refresh" button).  My problem is that the layer loads or 
unloads fine, but my image also pans or zooms at the same time depending 
on what function they have checked.  How can I make my page reload 
without changing the current view at all?  Even if they have the "Zoom 
In" button clicked and the zoomsize is set to "2" I don't want the page 
to zoom in when they just add a new layer.  Is there a value that I can 
set "zoomdir" to besides 1, 0, or -1 that basically disables panning and 
zooming altogether?

Thanks in advance,

Mike Smith

P.S. - Here's my javascript code that automatically loads/unloads layers:

function UpdateMap() {
    document.mapserv.submit();   //Note that my form name is "mapserv"
}

Then I add this to my checkbox tag:

onClick="UpdateMap();"