[postgis-devel] ST_AsGML(3, LineString) : Curve vs. LineString

[strk]

Olivier,
I was wondering why the ST_AsGML(3, LineString) function opts
for outputting a <Curve> tag rather than a LineString tag.

I belive both are valid 3.1.1 constructs,
but the <LineString> is shorter, 

  <!-- Curve -->
  <Curve>
    <segments>
      <LineStringSegment>
        <posList srsDimension="2">21 6 21 14</posList>
      </LineStringSegment>
    </segments>
  </Curve>

  <!-- LineString -->
  <LineString>
    <posList srsDimension="2">21 6 21 14</posList>
  </LineString>

Was there a special need for <segments> ?

--strk;

  ()   Free GIS & Flash consultant/developer
  /\   http://strk.keybit.net/services.html