topology: in the AsGML the namespace is better as parameter

[aperi2007]

In the AsGML function actually the "gml" prefix is hardcoded.

so it return always:

<gml:TopoSurface ...

I Guess the prefix would be given with a input parameter.

[aperi2007]

oops . In the title I mean "prefix" not "namespace".

[strk]

So, for (say) a prefix of 'RT' you'd have:

<RT:Edge RT:id="E1">
 <RT:directedNode>...</RT:directedNode>
 <RT:directedNode orientaion="-">...</RT:directedNode>
</RT:Edge>

Correct ? This would be in sync with the ST_AsGML one, producing something like this:

 <rt:Curve srsName="urn:ogc:def:crs:EPSG::4326">
  <rt:segments>
   <rt:LineStringSegment>
    <rt:posList srsDimension="2">0 0 10 0</rt:posList>
   </rt:LineStringSegment>
  </rt:segments>
 </rt:Curve>

[aperi2007]

yes, but uppercase if the original prefix is uppercase.

[strk]

r6693 implements the prefix (and r6694 hides internal function a little bit more).

Are we ready for regression testing now ?