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Communication Dans Un Congrès Année : 2012

Tangents to fractal curves and surfaces


The aim of our work is to specify and develop a geometric modeler, based on the formalism of iterated function systems with the following objectives: access to a new universe of original, various, aesthetic shapes, modeling of conventional shapes (smooth surfaces, solids) and unconventional shapes (rough surfaces, porous solids) by defining and controlling the relief (surface state) and lacunarity (size and distribution of holes). In this context we intend to develop differential calculus tools for fractal curves and surfaces defined by IFS. Using local fractional derivatives, we show that, even if most fractal curves are nowhere differentiable, they admit a left and right half-tangents, what gives us an additional parameter to characterize shapes.
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hal-00798910 , version 1 (11-03-2013)


  • HAL Id : hal-00798910 , version 1


Dmitry Sokolov, Christian Gentil, Hicham Bensoudane. Tangents to fractal curves and surfaces. 7th International Conference on Curves and Surfaces, Jun 2010, Avignon, France. pp.663-680. ⟨hal-00798910⟩
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