Surface Reconstruction From Scattered Points Cloud: The Ball Fretting

August 19, 2009 by Luigi Giaccari 
Filed under: Computational Geometry, Graphics 
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Surface recostructed using the Ball Fretting
This tool is a simplification of the ballpivoting algorithm. It imagines a bella eating a delaunay traignulation in order to extract a manifold surface.
It requires a single parameter: radius of the fretting ball.

%Ball Fretting
Given a uniform sampled filled point cloud returns a tight triangulation.

Input:

  • tetr: a set of tetraedrons, nx4 array. If the cloud is not tesselated yet you need to call a delaunay triangulator prior calling this function.
  • p : nx3 array, 3D set of points.
  • r : the only parameter of the algorithm, the radius of the fretting ball

Output:

  • t : triangles ids, nx3 array
  • tnorm: normals of triangles with outwards orientation

For bugs,infos: giaccariluigi@msn.com

This work is free thanks to users gratitude. If you find it usefull please consider making a donation on my website.

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Due to heavy request, assistance and consulting is reserved only to donators

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