Dear List --
I have sketched up some ideas on how to reduce the
complexity of 3D topology handling:
http://grass.osgeo.org/wiki/GRASS_7_ideas_collection#3D_topology
I have some hope that it should be possible to implement
3D topological correctness in GRASS 7 and v.clean without
having to add a lot of code to the existing 2D methods.
I would be delighted to discuss the whole topic of 3D
topology, as I think it currently stands between GRASS
and more complex 3D vector data management/analysis.
Not sure if this mailing list or the wiki itself would
be the best place for discussion.
Best,
Ben
--
Benjamin Ducke
{*} Geospatial Consultant
{*} GIS Developer
benducke@fastmail.fm