2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/22125A simple model of 1D structure based on a Fibonacci sequence with variable atomic spacings is proposed. The model allows for observation of the continuous transition between periodic and non-periodic diffraction patterns. The diffraction patterns are calculated analytically both using ``cut and project'' and ``average unit cell'' methods, taking advantage of the physical space properties of the structure.17 pages, 6 figures, the language was polished. References added: [18], [23] & [28]. Paper accepted to Acta Physica Polonica BCondensed MatterMathematical Physicstext