The bounded slice VOLUME as a clipping-plane set — the main plane, two WIDTH
bounds (±u, normals pointing outward), and a BACK plane depthM behind the
cut. Under the default intersection semantics (unionClippingRegions: false —
clipped only when on the clipped side of EVERY plane) the clipped region is
exactly the box footprint behind the visual plane: nothing beyond the width or
depth is touched, and the vertical column is unbounded so buildings are cut
floor-to-roof. null before placement.
The bounded slice VOLUME as a clipping-plane set — the main plane, two WIDTH bounds (±u, normals pointing outward), and a BACK plane
depthMbehind the cut. Under the default intersection semantics (unionClippingRegions: false— clipped only when on the clipped side of EVERY plane) the clipped region is exactly the box footprint behind the visual plane: nothing beyond the width or depth is touched, and the vertical column is unbounded so buildings are cut floor-to-roof.nullbefore placement.