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Anisotropic Sampling of Planar and Two-Manifold Domains for Texture Generation and Glyph Distribution

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3 Author(s)
Kratz, A. ; Zuse Inst. Berlin, Berlin, Germany ; Baum, D. ; Hotz, I.

We present a new method for the generation of anisotropic sample distributions on planar and two-manifold domains. Most previous work that is concerned with aperiodic point distributions is designed for isotropically shaped samples. Methods focusing on anisotropic sample distributions are rare, and either they are restricted to planar domains, are highly sensitive to the choice of parameters, or they are computationally expensive. In this paper, we present a time-efficient approach for the generation of anisotropic sample distributions that only depends on intuitive design parameters for planar and two-manifold domains. We employ an anisotropic triangulation that serves as basis for the creation of an initial sample distribution as well as for a gravitational-centered relaxation. Furthermore, we present an approach for interactive rendering of anisotropic Voronoi cells as base element for texture generation. It represents a novel and flexible visualization approach to depict metric tensor fields that can be derived from general tensor fields as well as scalar or vector fields.

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Visualization and Computer Graphics, IEEE Transactions on  (Volume:19 ,  Issue: 11 )