treemap.padding([padding]) If padding is specified, sets the
treemap(root) Lays out the specified root
cluster.separation([separation]) If separation is specified, sets the separation accessor to the specified
squarify.ratio(ratio) Specifies the desired aspect ratio of the generated rectangles. The ratio must be specified
pack(root) Lays out the specified root
d3.hierarchy(data[, children]) Constructs a root node from the specified hierarchical data. The specified data
d3.packEnclose(circles) Computes the smallest
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