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Figure 1 : Left: self-supporting surfaces with unsupported (top) and supported (bottom) boundary constraints. Unsupported boundary vertices and their corresponding power cells are colored in orange. Top right: initial self-supporting mesh. Spikes appear due to extremely small reciprocal areas. Bottom right: applying our smoothing scheme (5 iterations) improves mesh quality. The power diagrams (black) show how power cell area is distributed more evenly. Abstract Masonry structures must bedoi:10.1145/2461912.2461927 fatcat:pbdow7f2vjcqbilqonh3gnakwu