<div id="diagram"></div>
<script>
var diagram = kendo.dataviz.diagram;
var rect = new diagram.Rect(0, 0, 300, 200);
var layout = new diagram.Layout(rect, {
    orientation: "horizontal",
    spacing: 10
});

// Create elements to append
var circle = new diagram.Circle({ radius: 30 });
var rectangle = new diagram.Rectangle({ width: 50, height: 30 });

layout.append(circle);
layout.append(rectangle);
console.log("Elements appended to layout");
</script>