Angle-monotone Paths in Non-obtuse Triangulations
Angle-monotone Paths in Non-obtuse Triangulations
复制标题
非钝角三角剖分中的角度单调路径
DOI:
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发表时间:
2017
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通讯作者:
J. O'Rourke
中科院分区:
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作者:
A. Lubiw;J. O'Rourke
We reprove a result of Dehkordi, Frati, and Gudmundsson: every two vertices in a non-obtuse triangulation of a point set are connected by an angle-monotone path--an xy-monotone path in an appropriately rotated coordinate system. We show that this result cannot be extended to angle-monotone spanning trees, but can be extended to boundary-rooted spanning forests. The latter leads to a conjectural edge-unfolding of sufficiently shallow polyhedral convex caps.