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Interpolating Triangular Meshes Using a Non-Uniform, Non-Stationary Loop Subdivision
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DOI：10.3390/math13172862.png)
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Abstract
En 中文
This paper presents a novel non-uniform, non-stationary Loop subdivision that directly interpolates arbitrary initial triangular meshes. This subdivision is derived by assigning distinct parameters for vertex-point and edge-point generation within the stencils of a uniform, non-stationary Loop subdivision. This underlying uniform, non-stationary scheme is obtained based on a suitably chosen iterative process. Crucially, we derive the limit positions of the initial points under this non-uniform scheme and decrease the assigned parameters to a single shape parameter when interpolating the initial mesh. Compared with the existing methods interpolating the initial mesh using approximating subdivision, this new one achieves interpolation in finite steps and without any additional adjustment to the initial mesh or subdivision rules. Several numerical examples are given to show the scheme's interpolation accuracy and shape control capabilities.
Keywords:
Loop subdivision
non-stationary
non-uniform
limit position
triangular mesh interpolation
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