[postgis-devel] Parser/Emitter Changeover

[Paul Ramsey]

Well, the SQL/MM Part 3 spec BNF seems to require the dimensionality
flags on all typed subparts as well as the parent part. For example:

<geometrycollection text representation> ::= GEOMETRYCOLLECTION [ <z
m> ] <geometrycollection text>

<geometrycollection text> ::= <empty set>
| <left paren> <well-known { <comma> <well-known text representation>
text representation> }... <right paren>

<well-known text representation> ::= <point text representation> |
<curve text representation>
| <surface text representation> | <collection text representation>

<point text representation> ::= POINT [ <z m> ] <point text>

On Mon, Dec 6, 2010 at 3:55 AM, strk <strk at keybit.net> wrote:
> On Sat, Dec 04, 2010 at 12:15:40AM -0800, Paul Ramsey wrote:
>
>> - In EWKT, collections of M-dimensioned objects have the M flag on all
>>   subcomponents as well as parent components.
>>
>>   eg: CURVEPOLYGONM(CIRCULARSTRINGM(..))
>
> Is there any standard out specifying this one ?
>
> --strk;
>
>  ()   Free GIS & Flash consultant/developer
>  /\   http://strk.keybit.net/services.html
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