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Abstract

Since their introduction, mean value coordinates have enjoyed ever increasing popularity in computer graphics and computational mathematics because they exhibit a variety of good properties. Most importantly, they are defined in the whole plane which allows interpolation and extrapolation without restrictions. Recently, mean value coordinates were generalized to spheres and to $\mathbb{R}^3$. We show that these spherical and 3D mean value coordinates are well defined on the whole sphere and the whole space $\mathbb{R}^3$, respectively.