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Subject: Re: [geometry] Changes in WKB (read) behaviour proposal (WKT Part)
From: Barend Gehrels (barend_at_[hidden])
Date: 2013-11-04 16:11:18

Hi Mats,

Mats Taraldsvik wrote On 4-11-2013 21:31:
>>> The parser should support 3D as long as both the expected point
>>> dimensions
>>> and the wkb point dimensions match. I have tested this for 3D/Z. M
>>> is not
>>> supported by WKT yet, apparently, so I could not test this easily.
>> M is there too, see OGC specification in version 1.2.0.
> I meant boost::geometry's WKT reading. At least, I got an error when I
> tried POINTM(1 2 3), but that might be the wrong syntax.

POINT M ( 1 2) is OK and according to the spec.

Not all of WKT is supported, for example: TIN/TRIANGLE are not. But the
specs is followed quite closely.

We also have additions: we use WKT for the unit-test too, extensively.
Therefore we also added BOX and SEGMENT. We also support e.g. 5D (e.g.
for distance centroid) and therefore our wkt's can have 2,3,4,5 or more

Regards, Barend

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