Ben Caradoc-Davies ha scritto: > Andrea Aime wrote: >> following previous discussions on the mailing list >> I've put togheter the following proposal: >> http://docs.codehaus.org/display/GEOTOOLS/Partial+3D+data+support >> >> Feedbacks and votes welcomed. Please review at your earlies >> convenience. > > +1. This looks like a definite improvement. > > I know it is outside this proposal, but do you see a future for Geotools > in true-3D-geometry-land? Would this require extension of JTS, or a new > geometry library with complete 3D support?
Either would work. An extension to JTS would be great, and there has been two attempts at supporting more complex geometries in unsupported, see geometries and jts-wrapper. Both modules are abandoned thought, but I'm not sure why and what their status is. Deegree also rolled his own geometries classes and does convert to JTS only when topological computation is necessary: https://svn.wald.intevation.org/svn/deegree/base/trunk/src/org/deegree/model/spatialschema/ > Consulting with a knowledgeable stakeholder yielded these examples of > interesting 3D geospatial data: > - 3-D line-string (wells and boreholes, atmospheric and ocean soundings) This is 2d+1, will be handled by the proposal > - TIN (geological horizons) This could be suported as a multipolygon made of triangular 3d faces which are 3d polygons, but it would be not explicity, and quite a bit hacky > - Tri-surface (other geology surfaces) > - Solid whose shell is a tri-surface (ore-body, grade-control-surface) This could be supported as well the way above. But not having a explicit class is annoying. Cheers Andrea -- Andrea Aime OpenGeo - http://opengeo.org Expert service straight from the developers. ------------------------------------------------------------------------------ Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensing option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects _______________________________________________ Geotools-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geotools-devel
