init = {
const dataset = new ScatterGL.Dataset(
data.map(p => [p.x, p.y, p.z]),
data.map((d, i) => ({
label: d.digit,
labelIndex: i
}))
);
containerEl.setPointColorer(i =>
convertColor(d3.schemePaired[data[i].digit])
);
containerEl.render(dataset);
containerEl.resize();
}