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Accurate Algorithms for Spatial Operations on the Spheroid in a Spatial Database Management System

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Accurate Algorithms for Spatial Operations on the Spheroid in a Spatial Database Management System

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dc.contributor.author Martínez Llario, José Carlos es_ES
dc.contributor.author Baselga Moreno, Sergio es_ES
dc.contributor.author Coll-Aliaga, Eloína es_ES
dc.date.accessioned 2022-05-19T18:03:21Z
dc.date.available 2022-05-19T18:03:21Z
dc.date.issued 2021-06 es_ES
dc.identifier.uri http://hdl.handle.net/10251/182721
dc.description.abstract [EN] Some of the most powerful spatial analysis software solutions (Oracle, Google Earth Engine, PostgreSQL + PostGIS, etc.) are currently performing geometric calculations directly on the ellipsoid (a quadratic surface that models the earth shape), with a double purpose: to attain a high degree of accuracy and to allow the full management of large areas of territory (countries or even continents). It is well known that both objectives are impossible to achieve by means of the traditional approach using local mathematical projections and Cartesian coordinates. This paper demonstrates in a quantitative methodological way that most of the spatial analysis software products make important deviations in calculations regarding to geodesics, being the users unaware of the magnitude of these inaccuracies, which can easily reach meters depending on the distance. This is due to the use of ellipsoid calculations in an approximate way (e.g., using a sphere instead of an ellipsoid). This paper presents the implementation of two algorithms that solve with high accuracy (less than 100 nm) and efficiently (few iterations) two basic geometric calculations on the ellipsoid that are essential to build more complex spatial operators: the intersection of two geodesics and the minimum distance from a point to a geodesic. es_ES
dc.language Inglés es_ES
dc.publisher MDPI AG es_ES
dc.relation.ispartof Applied Sciences es_ES
dc.rights Reconocimiento (by) es_ES
dc.subject Computational methods es_ES
dc.subject Algorithms es_ES
dc.subject Ellipsoid es_ES
dc.subject Geodesics es_ES
dc.subject Geographical information science and systems es_ES
dc.subject.classification INGENIERIA CARTOGRAFICA, GEODESIA Y FOTOGRAMETRIA es_ES
dc.title Accurate Algorithms for Spatial Operations on the Spheroid in a Spatial Database Management System es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.3390/app11115129 es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Cartográfica Geodesia y Fotogrametría - Departament d'Enginyeria Cartogràfica, Geodèsia i Fotogrametria es_ES
dc.description.bibliographicCitation Martínez Llario, JC.; Baselga Moreno, S.; Coll-Aliaga, E. (2021). Accurate Algorithms for Spatial Operations on the Spheroid in a Spatial Database Management System. Applied Sciences. 11(11):1-21. https://doi.org/10.3390/app11115129 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.3390/app11115129 es_ES
dc.description.upvformatpinicio 1 es_ES
dc.description.upvformatpfin 21 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 11 es_ES
dc.description.issue 11 es_ES
dc.identifier.eissn 2076-3417 es_ES
dc.relation.pasarela S\439395 es_ES
upv.costeAPC 1500 es_ES


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