[ka-Map-users] Plotting data points (buildings)

[Paul Spencer]

Ric,

you can do something like the following in javascript:

var poiCanvas = null;
var aPOIs = []; //array of points of interest that you populate
                 //assume each entry is an array of name/lon/lat
function plotPOIs()
{
     if (!poiCanvas)
     {
         poiCanvas = myKaMap.createDrawingCanvas( 1000 );
     }
     for( var i in aPOIs)
     {
         var img = document.createElement('img');
         img.src = 'images/poi.png'; //your image
         img.width = 18; //adjust accordingly
         img.height = 18;
         img.alt = aPOIs[i][0];
         img.title = aPOIs[i][0];
         img.poiIndex = i; //can be used later in an onclick
         img.onclick = myPOI_onclick;
         img.cursor = 'help'; //change cursor
         myKaMap.addObjectGeo( poiCanvas, aPOIs[1], aPOIs[2], img );
     }
}

function myPOI_onclick()
{
     var poi = aPOIs[this.poiIndex];
     alert( 'selected poi ' + poi[0] );
}

Cheers

Paul

Ric Chura wrote:
> I am still in the process of installing ka-Map on my Solaris box, but am 
> curious if it is possible to plot points of interest on the map. For 
> instance, I have a list of buildings with latitude and longitude 
> coordinates, would it be possible to easily plot these?
>  
> Thanks for any insight,
>  
> -Ric
>  
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> ka-Map-users mailing list
> ka-Map-users at lists.maptools.org
> http://lists.maptools.org/mailman/listinfo/ka-map-users

-- 
+-----------------------------------------------------------------+
|Paul Spencer                           pspencer at dmsolutions.ca   |
+-----------------------------------------------------------------+
|Applications & Software Development                              |
|DM Solutions Group Inc                 http://www.dmsolutions.ca/|
+-----------------------------------------------------------------+