ICA-Abs Abstracts of the ICA ICA-Abs Abstr. Int. Cartogr. Assoc. 2570-2106 Copernicus Publications Göttingen, Germany 10.5194/ica-abs-3-42-2021 A proposition to define boundaries based on the smoothness and the continuity of voluminous point data phenomena Campos Raphael Gonçalves de ¹ Paiva Caio ¹ Bravo João Vitor Mesa ² Camboim Silvana Philippi ¹ 1 Federal University of Parana, Graduate Program in Geodetic Sciences, Brazil 2 Federal University of Uberlandia, Institute of Geography, Graduate Program in Geography and Graduate Program in Agriculture and Geospatial Information, Brazil 13 12 2021 3 42 Copyright: © 2021 Raphael Gonçalves de Campos et al. 2021 This work is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this licence, visit https://creativecommons.org/licenses/by/4.0/ This article is available from https://ica-abs.copernicus.org/articles/3/42/2021/ica-abs-3-42-2021.html The full text article is available as a PDF file from https://ica-abs.copernicus.org/articles/3/42/2021/ica-abs-3-42-2021.pdf