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        smooth_something_on_mesh(m, curvature, smooth_steps);
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        smooth_something_on_mesh(m, curvature, smooth_steps);
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    }
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    }
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    void mean_curvatures(const Manifold& m, VertexAttributeVector<double>& curvature, int smooth_steps)
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    void mean_curvatures(const Manifold& m, VertexAttributeVector<double>& curvature, int smooth_steps)
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    {
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    {
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        for(VertexIDIterator v = m.vertices_begin(); v != m.vertices_end(); ++v){
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        for(VertexIDIterator v = m.vertices_begin(); v != m.vertices_end(); ++v)
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			if(!boundary(m,*v))
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			{
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            Vec3d N = mean_curvature_normal(m, *v);
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				Vec3d N = mean_curvature_normal(m, *v);
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            curvature[*v] = length(N) * sign(dot(N,Vec3d(normal(m, *v))));
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				curvature[*v] = length(N) * sign(dot(N,Vec3d(normal(m, *v))));
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        }
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			}
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        smooth_something_on_mesh(m, curvature, smooth_steps);
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        smooth_something_on_mesh(m, curvature, smooth_steps);
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    }
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    }
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    void curvature_paraboloids( const Manifold& m,
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    void curvature_paraboloids( const Manifold& m,