SIG 3D

Oslandia Team

FOSS4G FR 2014 – Paris

E-PLU Project

2013 20152010

PostGIS

GEOS SFCGAL

CGAL

PostGIS

GEOS SFCGAL

CGAL

ST_3DIntersectionST_TesselateST_3DAreaST_ExtrudeST_ForceLHRST_OrientationST_MinkowskiSumST_StraightSkeleton

SFCGAL functions

ST_3DIntersectionST_TesselateST_3DAreaST_ExtrudeST_ForceLHRST_OrientationST_MinkowskiSumST_StraightSkeleton

SFCGAL functions

2D Building Footprint

Straight Skeleton Extrusion & roof computation

ST_IntersectsST_3DIntersectsST_IntersectionST_AreaST_DistanceST_3DDistance

Both GEOS & SFCGAL

SET postgis.backend = 'geos' ;

SET postgis.backend = 'sfcgal' ;

Tests de regression PostGIS OK

GardenTest PostGIS OK

Géométries 3D invalides OK

Large communauté en cours

Performances SFCGAL similaires à celles de GEOS pour la 2D (avec le gain de la précision arbitraire)

Performances SFCGAL similaires à celles de GEOS pour la 2D (avec le gain de la précision arbitraire)

Mais certains traitements 3D peuvent prendre du temps

ISO 19107:2013

ISO 19125:2013

ὁράω

QGIS

Horao

OSG

OpenGL

https://vimeo.com/74869530

https://vimeo.com/74869530

PostGIS

GEOS SFCGAL

CGAL

QGIS

Horao

OSG

OpenGL

PostGIS www.postgis.org

SFCGAL www.sfcgal.org

Horao www.horao.net

QGIS www.qgis.org

http://www.postgis.org/http://www.sfcgal.org/http://www.horao.net/http://www.qgis.org/

2013 20152010

9:DIM 3D

WebGL

Textures

www.oslandia.com

https://github.com/Oslandia/presentations

https://github.com/Oslandia/Workshops

http://www.oslandia.com/https://github.com/Oslandia/presentationshttps://github.com/Oslandia/Workshops

Slide 1Slide 2Slide 3Slide 4Slide 5Slide 6Slide 7Slide 8Slide 9Slide 10Slide 11Slide 12Slide 13Slide 14Slide 15Slide 16Slide 17Slide 18Slide 19Slide 20Slide 21Slide 22Slide 23Slide 24