Following the question on 3D I was wondering if the 3D support in postgis includes importing/exporting PolygonZ PolylineZ and PointZ from shapefiles thus saving the z component in vertices! Cheers -------------------------------------- Francesco Pirotti Dept. Te.S.A.F./CIRGEO University of Padua Viale dell'Università 16 I-35020 Legnaro (PD) tel. +39 049 827 2710 fax. +39 049 827 2686 mob. +39 349 55 39 261 @mail [email protected] skypeID francesco197576 http://www.cirgeo.unipd.it/cirgeo/francescopirotti.htm
---------- Original Message ---------- To: PostGIS Users Discussion ([email protected]) From: Obe, Regina ([email protected]) Subject: RE: [postgis-users] 3D Topology Date: 2/1/2009 5:16:10 Depends what you are trying to do. PostGIS has very primitive support for 3D. 1) 3D volumetric objects are not supported 2) 3D non-volume are supported partly -- e.g. a 2D polygon in 3 d space, a line, point in 3d space. 3) Spatial relationships however only really consider the spatial component of the x, y plane. There is work in that area - for example http://www..foss4g2007.org/presentations/view.php/224 And work is going on in general to expand the PostGIS underlying geometry structure to support more types such as some missing curve support types and in future TIN and so forth. -----Original Message----- From: [email protected] on behalf of Brian Sanjeewa Rupasinghe Sent: Thu 1/1/2009 9:30 PM To: [email protected] Subject: [postgis-users] 3D Topology Hi, My question is: Does PostGIS support 3D topology? The substance of this message, including any attachments, may be confidential, legally privileged and/or exempt from disclosure pursuant to Massachusetts law. It is intended solely for the addressee. If you received this in error, please contact the sender and delete the material from any computer. Help make the earth a greener place. If at all possible resist printing this email and join us in saving paper. _______________________________________________ postgis-users mailing list [email protected] http://postgis.refractions.net/mailman/listinfo/postgis-users
