Software and libraries
Throughout this internship, several key libraries were employed to achieve the project’s objectives, ensuring efficient data processing, geometric modeling, and overall system functionality:
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JSON for Modern C++: This library was used for parsing the
config.json
configuration file, enabling the program to read and apply various settings necessary for terrain mesh generation and simulation. -
cURL and libpng: The cURL library, in conjunction with libpng, was utilized for sourcing elevation data from Mapbox. cURL handles the transfer of data from the Mapbox API, while libpng processes the PNG images containing the elevation data, making it accessible for mesh generation.
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CGAL: The CGAL (Computational Geometry Algorithms Library) library was a critical component for geometric modeling in this project. It was used specifically to create constrained Delaunay triangulations. These triangulations were essential for generating optimized terrain meshes that accurately represent the topography while maintaining consistency along contour lines.
References
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[cemosis] Cemosis. Center for Modeling and Simulation in Strasbourg. 2024. (www.cemosis.fr)
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[irma] IRMA. Institut de recherche mathématique avancée. 2024 (irma.math.unistra.fr)
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[unistra] University of Strasbourg. 2024. (en.unistra.fr)
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[numpex] PEPR Numpex. Priority Research Program and Equipment for Numerical Exascale computing. 2024. (numpex.org/numpex-program)
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[exama] Exa-MA. Methods and Algorithms for Exascale. 2024. (numpex.org/exama-methods-and-algorithms-for-exascale)
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[ktirio] Ktirio Urban Building application. Prud’homme Christophe. Expanding horizons: Ktirio and the urban building vision in Hidalgo2. October 2023. 2024. (github.com/orgs/feelpp/discussions/2167)
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[hidalgo2] CoE Hidalgo2. HPC and big data technologies for global challenges. 2024. (www.hidalgo2.eu/about)
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[ubm] CoE Hidalgo2. The Urban Building Model 2024. (www.hidalgo2.eu/urban-building-model)
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[inria] Inria. National Institute for Research in Digital Science and Technology. 2024. (www.inria.fr/en)
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[eea1] European Environment Agency. Greenhouse gas emissions from energy use in buildings in Europe. Octber 2023. 2024. (www.eea.europa.eu/en/analysis/indicators/greenhouse-gas-emissions-from-energy?activeAccordion=546a7c35-9188-4d23-94ee-005d97c26f2b)
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[eea2] European Environment Agency. Accelerating the energy efficiency renovation of residential buildings — a behavioural approach. June 2023. 2024. (www.eea.europa.eu/publications/accelerating-the-energy-efficiency)
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[ec1] European Commission. 2050 long-term strategy. 2024. (climate.ec.europa.eu/eu-action/climate-strategies-targets/2050-long-term-strategy_en#:~:text=Striving%20to%20become%20the%20world’s%20first%20climate%2Dneutral%20continent%20by%202050.&text=The%20EU%20aims%20to%20be,to%20the%20European%20Climate%20Law%20.)
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[ec2] European Commission. The European Green Deal. 2024. (commission.europa.eu/strategy-and-policy/priorities-2019-2024/european-green-deal_en)
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[ec3] European Commission. European Climate Law. 2024. (climate.ec.europa.eu/eu-action/european-climate-law_en)
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[ubp] Urban Building Pilot. Prud’homme Christophe. CoE Hidalgo2 Urban Building Pilot at NumPEx workshop on Discretization@Exascale. November 2023. 2024. (github.com/orgs/feelpp/discussions/2188)
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[eurohpc] EuroHPC JU. The European High Performance Computing Joint Undertaking. 2024. (eurohpc-ju.europa.eu/index_en)
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[mapbox] Wikipedia contributors. Mapbox. Wikipedia, The Free Encyclopedia. August 2024. 2024. (en.wikipedia.org/wiki/Mapbox)
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[mapbox-terrain-rgb] Mapbox. Mapbox Terrain-RGB v1. Mapbox Documentation. 2024. (docs.mapbox.com/data/tilesets/reference/mapbox-terrain-rgb-v1)
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[mapbox-raster-tiles] Mapbox. Mapbox Raster Tiles API. Mapbox Documentation. 2024. (docs.mapbox.com/api/maps/raster-tiles)
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[json-nlohmann] Lohmann, Niels. JSON for Modern C++. 2024. (json.nlohmann.me)
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[curl] Stenberg, Daniel. cURL: A Command Line Tool and Library for Transferring Data with URLs. 2024. (curl.se)
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[libpng] libpng: The Official PNG Reference Library. 2024. (www.libpng.org/pub/png/libpng.html)
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[cgal] CGAL: The Computational Geometry Algorithms Library. 2024. (www.cgal.org)
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[stl] STL (STereoLithography) File Format Specification. 2024. (www.fabbers.com/tech/STL_Format)
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[gmsh] Geuzaine Christophe, and Jean-François Remacle. Gmsh: A 3D Finite Element Mesh Generator with Built-in Pre- and Post-Processing Facilities. Version 4.10, 2024. (gmsh.info)
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[msh] MSH: The Gmsh Mesh File Format. 2024. (gmsh.info/doc/texinfo/gmsh.html#MSH-file-format)
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[img:lat-lon] Latitude and Longitude. BBC Bitesize. 2024. (www.bbc.co.uk/bitesize/guides/ztqtyrd/revision/1)
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[world-geodetic-system] Wikipedia contributors. World Geodetic System. Wikipedia, The Free Encyclopedia. 2024. (en.wikipedia.org/wiki/World_Geodetic_System)
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[marcator-projection] Wikipedia contributors. Mercator projection. Wikipedia, The Free Encyclopedia. 2024. (en.wikipedia.org/wiki/Mercator_projection)
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[web-marcator-projection] Wikipedia contributors. Web Mercator projection. Wikipedia, The Free Encyclopedia. 2024. (en.wikipedia.org/wiki/Web_Mercator_projection)
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[cdt1] Wikipedia contributors. Constrained Delaunay triangulation. Wikipedia, The Free Encyclopedia. 2024. (en.wikipedia.org/wiki/Constrained_Delaunay_triangulation)
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[cdt2] L. Paul Chew. Constrained Delaunay Triangulations. Dartmouth College. 1987. 2024. (www.cs.jhu.edu/~misha/Spring16/Chew87.pdf)
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[dt] Wikipedia contributors. Delaunay triangulation. Wikipedia, The Free Encyclopedia. 2024. (en.wikipedia.org/wiki/Voronoi_diagram)
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[voronoi] Wikipedia contributors. Voronoi diagram. Wikipedia, The Free Encyclopedia. 2024. ()
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[tiled-web-map] Wikipedia contributors. Tiled web map. Wikipedia, The Free Encyclopedia. 2024. (en.wikipedia.org/wiki/Tiled_web_map)
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[img:tiles-coordinates] XYZ Tiles coordinate numbers. Wikipedia, The Free Encyclopedia. 2024. (en.wikipedia.org/wiki/File:XYZ_Tiles.png)
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[img:tiled-web-map] Tiled Web Map. Wikipedia, The Free Encyclopedia. 2024. (en.wikipedia.org/wiki/Tiled_web_map#/media/File:Tiled_web_map_Stevage.png)
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[img:dt] Delaunay triangulation. Wikipedia, The Free Encyclopedia. 2024. (en.wikipedia.org/wiki/Delaunay_triangulation#/media/File:Delaunay_circumcircles_vectorial.svg)
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[img:dt-centers] Delaunay triangulation with all the circumcircles and their centers. Wikipedia, The Free Encyclopedia. 2024. (en.wikipedia.org/wiki/Delaunay_triangulation#/media/File:Delaunay_circumcircles_centers.svg)
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[img:dt-voronoi] Delaunay triangulation and its Voronoi diagram. Wikipedia, The Free Encyclopedia. 2024. (en.wikipedia.org/wiki/Delaunay_triangulation#/media/File:Delaunay_Voronoi.svg)
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[img:constrained-mesh] Pierre Alliez, Senior Researcher and Team Leader at Inria, Image provided during personal communication. 2024.
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[img:constrained-refined-mesh] Pierre Alliez, Senior Researcher and Team Leader at Inria, Image provided during personal communication. 2024.