area3 = {
let chartHolder = d3.select(document.createElement("div"));
chartHolder.attr("style", "height: 420px");
let area = d3X3d.component.areaMultiSeries();
let viewpoint = d3X3d.component.viewpoint();
let scene = chartHolder
.append("X3D")
.attr("width", width + "px")
.attr("height", height + "px")
.append("Scene");
scene
.datum(data)
.call(area);
scene
.call(viewpoint);
return chartHolder.node();
}