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Mesecina – computational geometry you can see

Medial Axis Approximation from Inner Voronoi Balls:
A Demo of the Mesecina Tool

Bálint Miklós (ETH Zurich), Joachim Giesen (MPI Saarbrucken), Mark Pauly (ETH Zurich)

We illustrate a simple algorithm for approximating the medial axis of a 2D shape with smooth boundary from a sample of this boundary. The algorithm is compared to a more general approximation method that builds on the same idea, namely, to approximate the shape by a union of balls. While not as general, our algorithm is simpler, faster and numerically more stable. Both algorithms are visualized using the Mesecina tool, which is also described.

 

Watch the video

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Download the video (720x480 at 30fps):

 

Abstract

Miklos, Giesen, Pauly: Medial Axis Approximation from Inner Voronoi Balls: A Demo of the Mesecina Tool - the accompanying extended abstract.

 

Extended version

Giesen, Miklos, Pauly: The Medial Axis of the Union of Inner Voronoi Balls in the Plane - manuscript with the complete proof of the structural result visualized in the video. Submitted and under review for Computational Geometry: Theory and Applications.

 

The software, Mesecina

Go to the Download page to see the latest version available.

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