[postgis-users] Re: 3d support in postgis

[Paul Ramsey]

I should weigh in with my usual speach: We are always interested in 
doing particular work on PostGIS if people can bring funding to bear on 
the problem. If there is anyone out there with requirements for 
n-dimensional data and indexing to match, I would like to hear from 
them, particularly from Canadians. I am hoping to do a funding proposal 
this fall for a grab bag of PostGIS enhancements, and 
multi-dimensionality is an obvious one. It would be an easier sell 
though, if there were clients who wanted it/used it.

Wolfgang Bär wrote:
> 
> thanks for your fast answer.
> 
> I know that the datatypes in postgis are 2.5d. But I thought maybe the 
> spatial index method is implemented with the 3d-Box datatype and so 
> could also be use with custom implemented fully 3d datatypes.
> 
> But after your answer its clear what I thought - if I want fully 3d 
> support I have to implement also the access method new and not only the 
> datatypes and operations.
> 
> Just now I am looking at different databases in the object-relational 
> and object-oriented field checking their possibilities for extensibility 
> for fully 3d spatial datatype support for my research.
> 
> So at this time its not clear which database system I actually want   to 
> use. But if I decide me for PostgreSQL/PostGIS or if I will try 
> something out in PostGIS which might be of interest for the PostGIS 
> community I will let you know for sure.

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      | Paul Ramsey
      | Refractions Research
      | Email: pramsey at refractions.net
      | Phone: (250) 885-0632
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