[ka-Map-users] Overlay question

[Yahya Mohammad]

Hi list,
I just started with ka-map and am still stumbling around the code but I think 
it's awesome. 

Now I have a polygon shape obj that I want to overlay on my map. The shape is 
dynamic and can change its position and shape every few minutes. I was 
looking at the kaXMLOverlay script mentioned in the list archives and it 
looks like it can do what I need. (Any other suggestions are most welcome :) 

I read the overlay wiki page 
http://ka-map.ominiverdi.org/wiki/index.php/Overlay_API_Reference and have a 
few questions about the xml representation of a polygon. As I understand the 
<polygon> element is a child of a <point> element. I'm assuming the polygon 
coordinates should be the text node of the <polygon> element. But what should 
the x and y attributes of <point> contain? Is this the centroid of the 
polygon? What should the attributes be if I'm  drawing a linestring? 

Thanks!
Yahya Mohammad