[postgis-devel] WKB type

Paul Ramsey pramsey at refractions.net
Fri Sep 10 08:21:59 PDT 2004


strk at refractions.net wrote:

> On Fri, Sep 10, 2004 at 12:50:13AM -0700, David Blasby wrote:
> 
>>>Note that current postgis WKB output contains custom 3d extension,
>>>and LWGEOM will have the 4d extension.
>>
>>LWGEOM currently has WKB support for 2d, 3d, and 4d (written by Ralph Mason).
>>
>>dave
> 
> 
> I've realized that, thanks.
> 
> Anyway, to sum things up new geometry representation (LWGEOM)
> will have:
> 
>  o WKB binary IO using AsBinary, *FromWKB (smallest binary representation)
>  o WKT text IO using AsText, *FromText (most human-readable form)
>  o Dave's hexized WKB using default IO  (smallest text representation)

That's my understanding, and Dave's hex-wkb-plus-extras is the canonical 
form, hooray no more coordinate drift.

> The 'WKB' postgresql datatype will no more be needed,
> does it sound Dave ?




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