gistfile1.txt

    var elements = data.map(function(d){
      return new nmap_element({
            id:d.id,
            x:d.x,
            y:d.y,
            weight:d.weight ? d.weight : 1),
            klass:d.class ? d.class : 1)
        });
    });
    
    // anstatt
    var elements = [];
    for(var i = 0; i<data.length; i++){
        elements.push(new nmap_element({
            id:data[i].id,
            x:data[i].x,
            y:data[i].y,
            weight:(("weight" in data[i]) ? data[i].weight : 1),
            klass:(("class" in data[i]) ? data[i].class : 1)
        }));
    }