nx_viz_treemap.nx

nx_viz_treemap.nx -- the TREEMAP layer of the sovereign Nishi viz library (the d3-hierarchy treemap equivalent, bits-up). Slice-and-dice: partition a rectangle among N weighted values proportionally, slicing along the LONGER axis (better aspect than always-horizontal). One level; recurse per child for nesting. Pure integer. rects_out = 4 ints/value: x, y, w, h. Closes layout-treemap. license_tier: ORIGINAL