treemap series tiles each category by its value, with nested children drawn as smaller tiles inside their parent.sunburst series draws each level of a family tree as a ring, with labels turned along the radius by rotate: "radial".itemStyle.borderRadius to round every segment of a sunburst, with an empty center left by the inner radius.levels to give each ring its own color and label.rotate: radial, tangential or a fixed angle.itemStyle, so the highlighted paths stand out in one hue.id and universalTransition morph between a treemap and a sunburst every three seconds.visualMap colors each sunburst segment by its value, while one node keeps its own itemStyle.color.tree series lays a module hierarchy out from left to right, with every other branch collapsed until you click it.orient to RL to grow the tree from the right edge, with leaf labels flipped to the left of their nodes.orient to vertical to hang the tree from the top, with labels rotated so long names fit between siblings.orient to BT to grow the tree upward from the bottom, with emphasis.focus lighting a branch on hover.edgeShape to polyline to join parents and children with right-angled links that fork at edgeForkPosition.layout to radial to spread the tree around its root, opened three levels deep by initialTreeDepth.tree series side by side, each placed with its own left and right, with the legend toggling either one.treemap of folders on a disk, with levels setting gaps and colorSaturation per depth and click to drill in.upperLabel to print each folder's name in a band above its children, so every level stays readable.leafDepth to show two levels at a time, so clicking a tile drills into the next level of the option tree.visualDimension and colorMappingBy.treemap between this year, last year and growth, with rich labels showing totals per household.sunburst with a sort function and glowing outer levels, coloring each book by the rating it was given.levels sets each ring's radius and every flavor family keeps one hue across its rings.