[mapserver-users] zoom box in JavaScript (not Java)

[Andrew Haigh]

I'm not sure if this will work or not but try something this:

1. Place the map image tag in a <div id="mapdiv" etc>. (Make the dive
the same size as the image)
2. Modify the ESRI code, so it doesn't use frames (although it might be
easier to rewrite it -  I think).
3. Get the user to draw the drag box, when the user has finished, you've
got the mouse start and end co-ordinates.
4. Get the location of the div "mapdiv" using the getElementByID
javascript function, to get a handle on the div and then read its X and
Y values.

I'll give it a try, when I get a chance.

Let me know how you get on if you try it.

This code will only work for IE6+ and NN6+ (I think) although I've lost
my JavaScript book!

Andrew

On Sun, 2002-09-29 at 16:34, Alex Rice wrote:
> 
> On Saturday, September 28, 2002, at 03:37  PM, Dan Barron wrote:
> 
> > The javascript to do this is really pretty straight forward.  In a 
> > nutshell this is all you should need to know.
> >
> 
> This is something different- I think the question was about how to draw 
> a zoombox, also called "rubber band" box. Where you click and drag to 
> create the new extent you want to zoom to.
> 
> 
> Alex Rice, Software Developer
> Architectural Research Consultants, Inc.
> alrice at swcp.com
> alex_rice at arc.to
> 
-- 
-- 

"Imagination is more important than knowledge."