Shadowing Calculation on Urban Areas from Semantic 3D City Models

Longxiang Xu; Camilo León-Sánchez; Giorgio Agugiaro; Jantien Stoter

doi:10.1007/978-3-031-43699-4_2

Shadowing Calculation on Urban Areas from Semantic 3D City Models

Longxiang Xu, Camilo León-Sánchez^*, Giorgio Agugiaro, Jantien Stoter

^*Corresponding author for this work

Urban Data Science

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

Abstract

Nowadays, our society is in the transit to adopt more sustainable energy sources to reduce our impact on the environment; one alternative is solar energy. However, this is highly affected by the surroundings, which might cause shadowing effects. In this paper, we present our method to perform shadowing calculations in urban areas using semantic 3D city models, which is split into five sections: Point Grid Generation, Sun-Ray Generation, Nightside Filtering, Bounding Volume Hierarchy and the intersection between the sun rays and the BVH to identify which locations are shadowed at a given moment (epoch). Our tests are performed in Rotterdam’s city center, a dense urban area in The Netherlands. Our initial results indicate that the computational time per 100 k grid points fluctuates within 0.2–0.7s.

Original language	English
Title of host publication	Recent Advances in 3D Geoinformation Science
Subtitle of host publication	Proceedings of the 18th 3D GeoInfo Conference
Editors	Thomas H. Kolbe, Andreas Donaubauer, Christof Beil
Place of Publication	Cham
Publisher	Springer
Chapter	2
Pages	31-47
Number of pages	17
ISBN (Electronic)	978-3-031-43699-4
ISBN (Print)	978-3-031-43698-7, 978-3-031-43701-4
DOIs	https://doi.org/10.1007/978-3-031-43699-4_2
Publication status	Published - 2024
Event	18th 3D Geoinfo Conference - Technical University of Munich, Munich, Germany Duration: 12 Sept 2023 → 14 Sept 2023 https://www.3dgeoinfo.org/3dgeoinfo/

Publication series

Name	Lecture Notes in Geoinformation and Cartography
Publisher	Springer
ISSN (Print)	1863-2246
ISSN (Electronic)	1863-2351

Conference

Conference	18th 3D Geoinfo Conference
Country/Territory	Germany
City	Munich
Period	12/09/23 → 14/09/23
Internet address	https://www.3dgeoinfo.org/3dgeoinfo/

Bibliographical note

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

Solar potential
3DCM
Shadows analysis
Raytracing

Access to Document

10.1007/978-3-031-43699-4_2

Cite this

Xu, L., León-Sánchez, C., Agugiaro, G., & Stoter, J. (2024). Shadowing Calculation on Urban Areas from Semantic 3D City Models. In T. H. Kolbe, A. Donaubauer, & C. Beil (Eds.), Recent Advances in 3D Geoinformation Science: Proceedings of the 18th 3D GeoInfo Conference (pp. 31-47). (Lecture Notes in Geoinformation and Cartography). Springer. https://doi.org/10.1007/978-3-031-43699-4_2

Xu, Longxiang ; León-Sánchez, Camilo ; Agugiaro, Giorgio et al. / Shadowing Calculation on Urban Areas from Semantic 3D City Models. Recent Advances in 3D Geoinformation Science: Proceedings of the 18th 3D GeoInfo Conference. editor / Thomas H. Kolbe ; Andreas Donaubauer ; Christof Beil. Cham : Springer, 2024. pp. 31-47 (Lecture Notes in Geoinformation and Cartography).

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abstract = "Nowadays, our society is in the transit to adopt more sustainable energy sources to reduce our impact on the environment; one alternative is solar energy. However, this is highly affected by the surroundings, which might cause shadowing effects. In this paper, we present our method to perform shadowing calculations in urban areas using semantic 3D city models, which is split into five sections: Point Grid Generation, Sun-Ray Generation, Nightside Filtering, Bounding Volume Hierarchy and the intersection between the sun rays and the BVH to identify which locations are shadowed at a given moment (epoch). Our tests are performed in Rotterdam{\textquoteright}s city center, a dense urban area in The Netherlands. Our initial results indicate that the computational time per 100 k grid points fluctuates within 0.2–0.7s.",

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author = "Longxiang Xu and Camilo Le{\'o}n-S{\'a}nchez and Giorgio Agugiaro and Jantien Stoter",

note = "Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.; 18th 3D Geoinfo Conference ; Conference date: 12-09-2023 Through 14-09-2023",

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Xu, L, León-Sánchez, C , Agugiaro, G & Stoter, J 2024, Shadowing Calculation on Urban Areas from Semantic 3D City Models. in TH Kolbe, A Donaubauer & C Beil (eds), Recent Advances in 3D Geoinformation Science: Proceedings of the 18th 3D GeoInfo Conference. Lecture Notes in Geoinformation and Cartography, Springer, Cham, pp. 31-47, 18th 3D Geoinfo Conference, Munich, Bavaria, Germany, 12/09/23. https://doi.org/10.1007/978-3-031-43699-4_2

Shadowing Calculation on Urban Areas from Semantic 3D City Models. / Xu, Longxiang; León-Sánchez, Camilo ; Agugiaro, Giorgio et al.
Recent Advances in 3D Geoinformation Science: Proceedings of the 18th 3D GeoInfo Conference. ed. / Thomas H. Kolbe; Andreas Donaubauer; Christof Beil. Cham: Springer, 2024. p. 31-47 (Lecture Notes in Geoinformation and Cartography).

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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AU - León-Sánchez, Camilo

AU - Agugiaro, Giorgio

AU - Stoter, Jantien

N1 - Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

PY - 2024

Y1 - 2024

N2 - Nowadays, our society is in the transit to adopt more sustainable energy sources to reduce our impact on the environment; one alternative is solar energy. However, this is highly affected by the surroundings, which might cause shadowing effects. In this paper, we present our method to perform shadowing calculations in urban areas using semantic 3D city models, which is split into five sections: Point Grid Generation, Sun-Ray Generation, Nightside Filtering, Bounding Volume Hierarchy and the intersection between the sun rays and the BVH to identify which locations are shadowed at a given moment (epoch). Our tests are performed in Rotterdam’s city center, a dense urban area in The Netherlands. Our initial results indicate that the computational time per 100 k grid points fluctuates within 0.2–0.7s.

AB - Nowadays, our society is in the transit to adopt more sustainable energy sources to reduce our impact on the environment; one alternative is solar energy. However, this is highly affected by the surroundings, which might cause shadowing effects. In this paper, we present our method to perform shadowing calculations in urban areas using semantic 3D city models, which is split into five sections: Point Grid Generation, Sun-Ray Generation, Nightside Filtering, Bounding Volume Hierarchy and the intersection between the sun rays and the BVH to identify which locations are shadowed at a given moment (epoch). Our tests are performed in Rotterdam’s city center, a dense urban area in The Netherlands. Our initial results indicate that the computational time per 100 k grid points fluctuates within 0.2–0.7s.

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DO - 10.1007/978-3-031-43699-4_2

M3 - Conference contribution

SN - 978-3-031-43698-7

SN - 978-3-031-43701-4

T3 - Lecture Notes in Geoinformation and Cartography

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BT - Recent Advances in 3D Geoinformation Science

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PB - Springer

CY - Cham

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Y2 - 12 September 2023 through 14 September 2023

ER -

Shadowing Calculation on Urban Areas from Semantic 3D City Models

Abstract

Publication series

Conference

Bibliographical note

Keywords

Access to Document

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