Error Analysis of the Simplification of 3D Distances to Overhead Power Lines. - Laia Miravet-Garret; Elidia Beatriz Blázquez-Parra; Manuel D. Marin-Granados; Francisco J. Ortiz-Zamora; Patricia Mora-Segado; Francisca J. Castillo-Rueda (ICGDA, 2021)