[mapguide-users] RE: DWF viewer get attributes

[Mbonnet]

I'll try to be clear. 

So first of all, i haved haded 2 vars in dwfmappane.templ :

myX and myY

in this same file, under : "<script language=javascript for="DWFViewer"
event="OnMouseMove(buttons, x, y, handled)">" i had :

        var latlon = IsLatLongDisplayUnits();
        var pt = ScreenToMapUnits(x, y);
        if(latlon)
        pt = MapUnitsToLatLon(pt.X, pt.Y);

       myx = pt.X.toFixed(6);
       myy = pt.Y.toFixed(6);

in order to have the geom of the selected object

     then i had some functions in dwfmappane.tml :



function MakeWktPolygon(x1,y1,x2,y2) {
    return "POLYGON((" + x1 + " " + y1 + ", " + x2 + " " + y1 + ", " + x2 +
" " + y2 + ", " + x1 + " " + y2 + ", " + x1 + " " + y1 + "))";
}


function GetVisSelLayers() {
    var visSelLayers = "";
    var lyrs = GetLayers(true, true);
    for(var i=0; i < lyrs.length; i++)
    {
        if(i > 0)
            visSelLayers += ",";
        visSelLayers += lyrs[i].name;
    }
    return visSelLayers;
}


function CreateRequestHandler() {
    if(msie)
        return new ActiveXObject("Microsoft.XMLHTTP");
    else
        return new XMLHttpRequest();
}


function Property(name, value) {
    this.name = name;
    this.value = value;
}


function ficheAlphaClient(xmlIn)
{
	var maxfeatures = 0;
	var url = "http://vmmgos:8008/mapguide/mapagent/mapagent.fcgi";
    var req = url +
"?OPERATION=QUERYMAPFEATURES&VERSION=1.0.0&PERSIST=1&MAPNAME=" +
encodeURIComponent(GetMapName()) + "&SESSION=" + GetSessionId() + "&SEQ=" +
Math.random();
    req += "&LAYERNAMES=" + encodeURIComponent(GetVisSelLayers()) +
"&GEOMETRY=" + MakeWktPolygon(myx,myy + 1,myx,myy + 1) +
"&SELECTIONVARIANT=INTERSECTS";
    //prompt('Posez ici votre question',req);
    if(maxfeatures != 0)
        req += "&MAXFEATURES=" + maxfeatures;

    var selRequest = CreateRequestHandler();
    selRequest.open("GET", req, false);
    selRequest.send(null);
    if(selRequest.responseXML)
    {
		var xmlIn = selRequest.responseXML.documentElement;
    }
    else
    {
        RequestFailed("No response");
    }
    var properties = new Array();
	var props = xmlIn.getElementsByTagName("Property");
    var sourceLayer = xmlIn.getElementsByTagName("Class");
    var typeSource = sourceLayer[0].getAttribute("id");
    var paramValues = "";
    if(props != null)
    {
        for(var i=0; i < props.length; i++)
        {
            var name = props[i].getAttribute("name");
            var value = props[i].getAttribute("value");
            properties.push(new Property(name, value));
            			
        }

    }
}

and finally i had : 

parent.ficheAlphaClient();

in the OnSelectedChanged() of the emaprelayer.html page

i hope i haven't forgot something.


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